Strict Standards: Non-static method SimplePie_Misc::fix_protocol() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 809

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8582

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8583

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 1532

Strict Standards: call_user_func() expects parameter 1 to be a valid callback, non-static method SimplePie_Cache::create() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 1536

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 7584

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 7585

Strict Standards: Non-static method SimplePie_Misc::get_curl_version() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 7609

Strict Standards: Non-static method SimplePie_Misc::get_curl_version() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 7621

Strict Standards: Non-static method SimplePie_Misc::xml_encoding() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 1711

Strict Standards: Non-static method SimplePie_Misc::xml_encoding() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 1730

Strict Standards: Non-static method SimplePie_Misc::change_encoding() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 1749

Strict Standards: Non-static method SimplePie_Misc::encoding() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8737

Strict Standards: Non-static method SimplePie_Misc::encoding() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8738
Servicios de salud en cuba, Noticias sobre salud, tratamientos, eventos
Operador mayoristacubandhealthCuba
 
Inicio Quienes Somos Nuestros Servicios Eventos Médicos Foros Contactenos ahora!

 

Noticias de Salud.

Los audífonos infantiles mejoran el habla y el lenguaje 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Los ni√Īos que no oyen bien, cuanto m√°s utilicen aud√≠fonos, mejores ser√°n sus capacidades para hablar y dominar el lenguaje, seg√ļn demuestra un nuevo estudio.

audici√≥n“Los padres reciben informaci√≥n confusa, en especial si sus hijos padecen s√≥lo una disminuci√≥n auditiva leve: ¬Ņdeber√≠an utilizar aud√≠fonos o esperar hasta m√°s adelante?”, dijo la audi√≥loga Mary Pat Moeller, del Centro para la Sordera Infantil del Hospital Nacional de Investigaci√≥n de Boys Town, Omaha, Nebraska.

Pero hasta los ni√Īos que participaron del estudio con disminuci√≥n auditiva leve mejoraron significativamente las habilidades para hablar si utilizaban aud√≠fonos, seg√ļn precis√≥ Moeller. Y cuanto m√°s tiempo los utilizaban, mayor era la mejor√≠a.

Relevamientos de los CDC sugieren que entre menos del 1 %¬† hasta casi el 15 % de los ni√Īos estadounidenses padecen disminuci√≥n auditiva.

Los autores analizaron informaci√≥n de 180 ni√Īos de entre tres y cinco a√Īos que no pod√≠an o√≠r bien. Casi todos utilizaban aud√≠fonos. Los evaluaron con pruebas del habla, el lenguaje y la articulaci√≥n. Cuanto m√°s mejoraba la audici√≥n con los dispositivos, mejor se desempe√Īaban los ni√Īos en esos tests. Y a mayor antig√ľedad de uso de los aud√≠fonos, mejores resultados, en especial en los que los dispositivos hab√≠an sido m√°s efectivos.

La relaci√≥n se mantuvo independientemente del grado de disminuci√≥n auditiva, seg√ļn publica el equipo en JAMA Otolaryngology – Head & Neck Surgery (doi: 10.1001/jamaoto.2014.267).

“Eso podr√≠a atribuirse a que los aud√≠fonos reducen la disminuci√≥n auditiva grave a moderada y moderada a leve”, explic√≥ el coautor, J. Bruce Tomblin, de University of Iowa, ciudad de Iowa City.

“El cambio es casi el mismo.”

Coment√≥ que la prueba del habla califica a los ni√Īos de manera similar que un test de coeficiente intelectual (CI) y el uso de los aud√≠fonos mejora el rango en el que se ubican esos ni√Īos.

Eso no quiere decir que los ni√Īos no puedan “ponerse al d√≠a” con el desarrollo del habla y el lenguaje si empiezan a utilizar los aud√≠fonos m√°s adelante, seg√ļn aclar√≥ Tomblin.

Algunos investigadores aseguran que la ni√Īez temprana es un “per√≠odo cr√≠tico” para la exposici√≥n de los ni√Īos al lenguaje, pero Tomblin no adhiere necesariamente a esa teor√≠a.

Los ni√Īos con disminuci√≥n auditiva leve pueden beneficiarse con el uso de aud√≠fonos m√°s all√° del habla y el lenguaje; su calidad de vida y su rendimiento general tambi√©n mejoran, seg√ļn dijo la doctora Judith E. Cho Lieu, otorrinolaring√≥loga pedi√°trica de la Facultad de Medicina de Washington University, St. Louis, Missouri, y que no particip√≥ del estudio.

Aun as√≠, “el uso de aud√≠fonos solamente no es suficiente para la adquisici√≥n del habla y el lenguaje”, indic√≥ Lieu por e-mail.

Tomblin aclar√≥ que los resultados no se aplican a los ni√Īos sordos, que no fueron el objeto de estudio. Esa poblaci√≥n aprenden el Lenguaje de Se√Īas Estadounidense o recibe un implante coclear.

Moller explic√≥ que los aud√≠fonos para ni√Īos cuestan unos 8500 d√≥lares, pero el costo var√≠a seg√ļn la marca. Para Tomblin, el beneficio que recibe el ni√Īo supera el costo.
abril 11/2014 (Medcenter.com)

Tomblin JB, Oleson JJ, Ambrose SE, Walker E, Moeller MP.The Influence of Hearing Aids on the Speech and Language Development of Children With Hearing Loss.JAMA Otolaryngol Head Neck Surg. 2014 Abr 3.

Reconstrucción exitosa de nariz mediante cartílago cultivado en laboratorio 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Se ha conseguido llevar a cabo con éxito una cirugía de reconstrucción de nariz utilizando cartílago producido en el laboratorio. Las células de cartílago fueron extraídas del septum nasal del paciente, multiplicadas y expandidas para formar una membrana de colágeno. Al cartílago se le dio entonces la forma deseada para acomodarlo a su zona de implantación en la nariz, y se procedió a la operación. Ya son varias las intervenciones de esta clase realizadas, y ha pasado tiempo suficiente como para poder afirmar que sus resultados han sido satisfactorios.

cartilagoEl logro es obra de cient√≠ficos de la Universidad de Basilea en Suiza. Utilizaron un m√©todo de ingenier√≠a de tejidos en el que el cart√≠lago se cultiva en el laboratorio a partir de las propias c√©lulas del paciente. Esta nueva t√©cnica se aplic√≥ a cinco pacientes, de edades comprendidas entre los 76 y los 88 a√Īos, con serios defectos en su nariz despu√©s de una cirug√≠a debido al c√°ncer. Un a√Īo despu√©s de la reconstrucci√≥n, los cinco pacientes estaban satisfechos con su capacidad de respirar as√≠ como con la apariencia est√©tica de su nariz. Ninguno de ellos ha experimentado efectos secundarios derivados de la nueva t√©cnica.

Las alternativas tradicionales a la nueva t√©cnica son aparatosas, muy invasivas, dolorosas y pueden, debido a la necesidad de realizar intervenciones quir√ļrgicas adicionales, desembocar en complicaciones.

La nueva técnica, puesta en práctica de manera experimental por el equipo de Ivan Martin, ha cosechado resultados clínicos comparables a los de la cirugía estándar actual. Podría ayudar al cuerpo a aceptar el nuevo tejido (evitando así el problema del rechazo) y a mejorar la estabilidad y funcionalidad de la nariz.

El innovador método abre además el camino hacia nuevas posibilidades en el campo de la reconstrucción facial. Por ejemplo, ofrece la posibilidad de emplear cartílago cultivado en laboratorio para reconstrucciones más difíciles en cirugía facial, como la nariz completa, o un párpado o una oreja.

El equipo de Martin ha publicado un informe sobre esta t√©cnica y sus primeros resultados en la c√©lebre revista acad√©mica de temas m√©dicos The Lancet (doi:10.1016/S0140-6736(14)60544-4), editada por la conocida editorial cient√≠fica Elsevier. Como con toda nueva t√©cnica m√©dica, al √©xito inicial deber√° seguirle una amplia fase de validaci√≥n cl√≠nica antes de que su uso se pueda adoptar con la debida confianza en el √°mbito quir√ļrgico.
abril 15/2014 (NCYT)

Sylvie Miot , Martin D Haug , Andrea Barbero , Anke Wixmerten , Sandra Feliciano, Ivan Martin.Engineered autologous cartilage tissue for nasal reconstruction after tumour resection: an observational first-in-human trial. The Lancet, 11 Abril 2014

Lentes de contacto para mejorar el tratamiento contra el glaucoma 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Se estima que en la pr√≥xima d√©cada, cerca de cien millones de personas padecer√°n de glaucoma, una dolencia ocular que, si no se trata debidamente, puede da√Īar el nervio √≥ptico y acabar provocando ceguera.

lenteLa enfermedad a menudo causa un incremento de presión en el ojo como consecuencia de una acumulación de líquido y de un deterioro del tejido que se encarga de regular su drenaje. Los médicos suelen tratar el glaucoma mediante gotas que se administran a los ojos. Dichas gotas pueden ayudar a drenar el líquido o a reducir la producción del mismo.

Por desgracia, las gotas pueden causar efectos secundarios en el ojo y en otras partes del cuerpo, y adem√°s existe el riesgo de saltarse dosis por olvido.

En lo que podr√≠a ser un paso importante hacia una mejora considerable del tratamiento del glaucoma, unos investigadores de la Universidad de California en la ciudad estadounidense de Los √Āngeles (UCLA) han creado un sistema de aplicaci√≥n de f√°rmacos oftalmol√≥gicos que tendr√° efectos secundarios menores que los asociados a la v√≠a tradicional de aplicaci√≥n de medicaci√≥n contra el glaucoma, y que adem√°s mejora mucho el cumplimiento riguroso de su dosificaci√≥n.

El equipo de Dean Ho y Kangyi Zhang aunó nanodiamantes con medicamentos para el tratamiento del glaucoma, en una plataforma de suministro que es una lente de contacto. Este sistema hace que los fármacos se liberen en el ojo al interactuar con las lágrimas del paciente.

En las pruebas efectuadas hasta ahora, la nueva tecnología ha demostrado ser muy prometedora para el tratamiento prolongado del glaucoma y, como beneficio adicional, los nanodiamantes aumentan la durabilidad de las lentes de contacto.

Los nanodiamantes, que son subproductos de procesos convencionales de extracci√≥n minera y refinaci√≥n, miden aproximadamente cinco nan√≥metros de di√°metro y tienen la forma de peque√Īas pelotas de f√ļtbol. Los nanodiamantes se pueden enlazar a mol√©culas de una amplia gama de f√°rmacos, y hacen posible que el medicamento se libere poco a poco en el ojo, durante un largo per√≠odo de tiempo.

El medicamento escogido por los investigadores de la UCLA para enlazar sus mol√©culas con nanodiamantes es el timolol oft√°lmico, que se utiliza com√ļnmente como agente activo en las gotas para los ojos destinadas a mantener bajo control al glaucoma. En las lentes de contacto con nanodiamantes, peque√Īas dosis de timolol oft√°lmico se liberan al entrar en contacto con la lisozima, una enzima que es abundante en las l√°grimas.

Uno de los inconvenientes de aplicar mediante gotas el timolol oft√°lmico es que tan solo una cantidad de medicamento tan baja como el 5 %¬† alcanza el punto id√≥neo. Otra desventaja es lo poco repartido que el suministro est√° en el tiempo. Aunque unas gotitas parecen una cantidad √≠nfima, a la escala del ojo y de la patolog√≠a tratada equivalen a diluvios de medicamento separados por periodos de sequ√≠a extrema. En los “diluvios”, grandes cantidades del f√°rmaco se pueden filtrar hacia otras partes del organismo, provocando complicaciones tales como un ritmo irregular en los latidos del coraz√≥n. Las gotas tambi√©n pueden resultar bastante molestas de administrar, lo que lleva a muchos pacientes a pon√©rselas menos de lo debido.

Las lentes de contacto desarrolladas por el equipo de la UCLA pueden evitar en buena parte todos estos problemas.

Adem√°s de la prometedora utilidad de los nanodiamantes como agentes de liberaci√≥n de medicaci√≥n in situ activados por las se√Īales adecuadas del ambiente, tambi√©n pueden contribuir a hacer m√°s duraderas las lentes de contacto, al hacerlas soportar mejor el desgaste inherente a llevarlas puestas y tambi√©n el de insertarlas en los ojos o extraerlas de estos.

Incluso con los nanodiamantes incrustados, las lentes de contacto a√ļn poseen buenos niveles de claridad √≥ptica.

En cuanto al nivel de comodidad al llevarlas puestas, es muy bueno. El propio hecho de que no se hayan registrado cambios significativos en el contenido de agua de las lentillas durante las pruebas significa que mantienen bien su grado de lubricación y su nivel de permeabilidad al oxígeno.

En el trabajo de investigación y desarrollo también han participado Ho-Joong Kim (ahora en la Universidad de Chosun en Corea del Sur) y Laura Moore de la Universidad del Noroeste en Illinois, Estados Unidos
abril 21/2014 (NCYT)

Kim HJ, Zhang K, Moore L, Ho D.Diamond nanogel-embedded contact lenses mediate lysozyme-dependent therapeutic release.ACS Nano. 2014 Mar 25;8(3):2998-3005. doi: 10.1021/nn5002968.

Investigadores encuentran por qu√© el alcoholismo debilita los m√ļsculos 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

El impacto del alcoholismo en la fusi√≥n de las mitocondrias de las c√©lulas, contribuye al debilitamiento de los m√ļsculos, seg√ļn un estudio encabezado por la bioqu√≠mica chilena Ver√≥nica Eisner.

alcoholLa debilidad muscular es un s√≠ntoma com√ļn tanto de las personas que han sido alcoh√≥licas durante mucho tiempo como de los pacientes con enfermedad de las mitocondrias, los org√°nulos celulares que suministran la mayor parte de la energ√≠a necesaria para la actividad celular.

En un art√≠culo que publica la revista Journal of Cell Biology (doi:10.1083/jcb.201312066 ), Eisner, de la Universidad Thomas Jefferson, y sus colegas describen un eslab√≥n com√ļn en ambas condiciones: mitocondrias que no pueden repararse.

Las mitocondrias reparan sus componentes rotos fusion√°ndose con otras mitocondrias e intercambiando sus contenidos. En este proceso las partes da√Īadas se separan para un reprocesamiento y son reemplazadas por prote√≠nas de la mitocondria sana que funcionan de manera apropiada.

El tejido muscular depende constantemente de la energía que proveen las mitocondrias, lo cual hace que la labor de reparación sea una necesidad frecuente.

Pero como las mitocondrias están muy apretadas entre las fibras de células musculares, la mayoría de los científicos creía que la fusión de mitocondrias era imposible en estos tejidos.

Eisner cre√≥ un sistema para “etiquetar” las mitocondrias en los m√ļsculos de esqueleto de las ratas de laboratorio con dos colores diferentes y luego observ√≥ si se combinaban.

Seg√ļn el art√≠culo, Eisner primero creo un modelo de estudio con ratas cuyas mitocondrias expresaban el color rojo en todo momento, y tambi√©n mediante ingenier√≠a gen√©tica hizo que las mitocondrias en las c√©lulas se tornaran verdes cuando eran alcanzadas por rayo l√°ser.

De esta forma creó cuadrados de mitocondrias verdes brillantes sobre un fondo rojo.

Sorprendentemente las mitocondrias verdes se combinaron con las rojas, intercambiando sus contenidos, y también fueron capaces de ir a otras áreas donde sólo había antes mitocondrias de color rojo.

“Los resultados mostraron por primera vez que la fusi√≥n de mitocondrias ocurre en las c√©lulas musculares”, indic√≥ Eisner.

Luego el equipo investigador encabezado por Gyorgy Hajnoczky, director del Centro MitoCare en Jefferson, demostr√≥ que de las prote√≠nas en la fusi√≥n de mitocondrias denominada Mfn1 era la m√°s importante en las c√©lulas de los m√ļsculos del esqueleto.

Los científicos observaron que la abundancia de Mfn1 disminuía hasta un 50 %  en las ratas con una dieta de contenido alcohólico regular, en tanto que las otras proteínas en la fusión no se alteraban.

Esta disminuci√≥n apareci√≥ acompa√Īada con una reducci√≥n sustancial de la fusi√≥n de mitocondrias, y los investigadores relacionaron la mengua de la Mfn1 y la fusi√≥n de mitocondrias con el aumento de la fatiga muscular.
abril 21/2014 (EFE).-

Ver√≥nica Eisner,Guy Lenaers,Gy√∂rgy Hajn√≥czky.Mitochondrial fusion is frequent in skeletal muscle and supports excitation‚Äďcontraction coupling J Cell Biol jcb.201312066. Abril 21, 2014

Tomado del bolet√≠n de selecci√≥n tem√°tica de Prensa Latina: Copyright 2013 ‚ÄúAgencia Informativa Latinoamericana Prensa Latina S.A.‚ÄĚ

Los genes podrían ayudar a determinar el umbral del dolor 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

El motivo de que algunas personas puedan aguantar el dolor mejor que otras ha sido un misterio. Ahora, una nueva investigación sugiere que la genética podría tener que ver en si la tolerancia al dolor es baja o alta.

cefaleaLos investigadores localizaron cuatro genes que podrían ayudar a explicar por qué las percepciones al dolor varían de una persona a otra.

“Nuestro estudio es bastante significativo, porque provee una forma objetiva de comprender el dolor y el por qu√© distintos individuos tienen distintos niveles de tolerancia al dolor”, asegur√≥ en un comunicado de prensa de la Academia Americana de Neurolog√≠a (American Academy of Neurology) el autor del estudio, el Dr. Tobore Onojjighofia, de Proove Biosciences y miembro de la academia.

“Identificar si una persona porta estos cuatro genes podr√≠a ayudar a los m√©dicos a comprender mejor la percepci√≥n de dolor del paciente”, explic√≥ Onojjighofia. La investigaci√≥n fue financiada por Proove Biosciences.

En el estudio participaron m√°s de 2700 personas que tomaban unos analg√©sicos recetados llamados opi√°ceos (que com√ļnmente se conocen como narc√≥ticos) para el dolor cr√≥nico. Se pidi√≥ a los participantes que evaluaran su dolor en una escala de 0 a 10. Tras excluir a los que reportaron el dolor como cero, los investigadores dividieron a los dem√°s pacientes en tres grupos, seg√ļn su puntuaci√≥n de dolor.

De todos los participantes, se consideró que el 9 % tenían una percepción baja del dolor. Se consideró que el 46 % de los pacientes tenían dolor moderado. Finalmente, se calificó al 45 % de los pacientes con una percepción alta del dolor.

También se evaluaron los genes COMT, DRD2, DRD1 y OPRK1 de los participantes.

El gen DRD1 fue m√°s com√ļn entre los que ten√≠an una percepci√≥n baja del dolor, revel√≥ el estudio. Los investigadores hallaron que esa variante gen√©tica era un 33 % m√°s com√ļn en el grupo de dolor bajo que en el grupo de dolor alto.

En los que ten√≠an un dolor moderado, se observ√≥ m√°s la presencia de los genes COMT y OPRK. El COMT fue un 25 % m√°s com√ļn entre los que ten√≠an dolor moderado que entre los que ten√≠an una percepci√≥n alta del dolor. El OPRK fue un 19 % m√°s prevalente, hallaron los investigadores.

Mientras tanto, la variante gen√©tica DRD2 fue un 25 % m√°s com√ļn entre los que ten√≠an una percepci√≥n alta del dolor que entre los que ten√≠an un dolor moderado.

“El dolor cr√≥nico puede afectar a todas las dem√°s partes de la vida”, se√Īal√≥ Onojjighofia. “Hallar los genes que quiz√° tengan un rol en la percepci√≥n del dolor podr√≠a proveer un objetivo para el desarrollo de nuevas terapias, y ayudar a los m√©dicos a comprender mejor las percepciones de dolor de sus pacientes”.

Sus hallazgos, se presentarán en la reunión anual de la Academia Americana de Neurología, en Filadelfia. Las investigaciones presentadas en reuniones médicas se deben considerar como preliminares hasta que se publiquen en una revista revisada por profesionales.

Seg√ļn su sitio web, Proove, con sede en California, provee a los m√©dicos “informaci√≥n para mejorar la selecci√≥n, dosificaci√≥n y evaluaci√≥n de los medicamentos. La compa√Ī√≠a ofrece pruebas de laboratorio registradas reembolsadas por las aseguradoras”

Investigadores de la Academia Americana de Neurología han logrado identificar una serie de genes que podrían estar vinculados a la tolerancia que tienen las personas para aguantar el dolor.

Para llevar a cabo este estudio, se evaluaron a 2.721 personas que padecían dolor crónico y estaban tomando medicamentos para el dolor con opioides recetados. De esta forma, los expertos comprobaron que los genes implicados eran COMT, DRD2 , DRD1 y OPRK1 .

Asimismo, los participantes calificaron su percepci√≥n de dolor en una escala de cero a diez, aunque no se estudiaron a aquellas que no ten√≠an ning√ļn tipo de dolor. En concreto, la baja percepci√≥n del dolor se defini√≥ como una puntuaci√≥n de 1, 2 o 3; la percepci√≥n del dolor moderado fue una puntuaci√≥n de 4, 5 o 6; y la percepci√≥n de alto dolor era una puntuaci√≥n de 7, 8, 9 o 10 .

Ante esto, el 9 %  de los participantes tenía baja la percepción del dolor, el 46 %  tenía la percepción del dolor moderado y el 45 %  tenían una alta percepción del dolor.

Adem√°s, los investigadores encontraron que la variante del gen DRD1 fue del 33 %¬† m√°s frecuente en el grupo de bajo dolor que en el grupo de alto dolor. Entre las personas con una percepci√≥n del dolor moderado, las variantes de la COMT y OPRK fueron un 25 %¬† y 19 %¬† m√°s a menudo se encuentran que en aquellos con una percepci√≥n alta de dolor. La variante de DRD2 era 25 %¬† m√°s com√ļn entre las personas con una percepci√≥n alta de dolor en comparaci√≥n con las personas con dolor moderado.
abril 21/2014 (Medlineplus)

Investigadores tratan de resolver el misterio de la esquizofrenia 23 Apr 2014


Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13282

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13283

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::entities_decode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8488

Strict Standards: Non-static method SimplePie_Misc::absolutize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13273

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8337

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8395

Strict Standards: Non-static method SimplePie_Misc::normalize_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8401

Strict Standards: Non-static method SimplePie_Misc::percent_encoding_normalization() should not be called statically in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8661

Strict Standards: Non-static method SimplePie_Misc::parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8662

Strict Standards: Non-static method SimplePie_Misc::remove_dot_segments() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8667

Strict Standards: Non-static method SimplePie_Misc::compress_parse_url() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 8669

Strict Standards: Non-static method SimplePie_Misc::element_implode() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13274

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

Strict Standards: Non-static method SimplePie_Misc::get_element() should not be called statically, assuming $this from incompatible context in /home/cubaheal/public_html/classes/simplepie/simplepie.inc on line 13264

La esquizofrenia es una enfermedad grave para la cual todavía no se dispone de tratamiento farmacológico eficaz. En un intento por comprender exactamente lo que ocurre en el cerebro de las personas esquizofrénicas, investigadores de la Universidad de Dinamarca del Sur han analizado proteínas de los cerebros de ratas que han recibido drogas alucinógenas. Esto puede allanar el camino para nuevos y mejores fármacos.

esquizofreniaSiete por ciento de la población adulta padece esquizofrenia, y aunque los científicos han tratado durante siglos de comprender la enfermedad, todavía desconocen lo que la produce o cuáles cambios fisiológicos ocasiona en el cuerpo. Los médicos no pueden establecer el diagnóstico buscando cambios fisiológicos específicos en la sangre o los tejidos del paciente, sino que tienen que diagnosticarla basándose en los síntomas de la conducta.

En un esfuerzo por tratar de descubrir la firma fisiológica de la esquizofrenia, investigadores de la Universidad de Dinamarca del Sur llevaron a cabo pruebas en ratas y ahora consideran que la firma radica en algunas proteínas específicas medibles. El conocer estas proteínas y comparar su comportamiento con las proteínas de los cerebros de personas no esquizofrénicas puede permitir el desarrollo de fármacos más eficaces.

Es en extremo difícil estudiar la actividad cerebral de personas esquizofrénicas y por eso los investigadores a menudo utilizan modelos animales en su esfuerzo por comprender los misterios del cerebro esquizofrénico. Los cerebros de ratas se parecen al cerebro humano en tantas formas que es congruente su estudio para comprender más el cerebro humano.

El potente f√°rmaco alucin√≥geno fenciclidina (PCP) tambi√©n conocido como “polvo de √°ngel”, produce una serie de s√≠ntomas en las personas que son muy similares a los de la esquizofrenia.

“Cuando damos PCP a las ratas, √©stas se vuelven objetos de estudio valiosos para los investigadores de la esquizofrenia”, explica Ole N√łrregaard Jensen, Profesor y Director del Departamento de Bioqu√≠mica y Biolog√≠a Molecular.

Junto con Pawel Palmowski, Adelina Rogowska-Wrzesinska y otros colaboradores, es el autor de un artículo científico sobre el descubrimiento, publicado en la revista internacional Journal of Proteome Research (DOI: 10.1021/pr4010794).

Entre los síntomas y reacciones que se pueden observar tanto en seres humanos como en ratas están los cambios en el movimiento y la disminución de las funciones cognitivas, las alteraciones de la memoria, la atención y la capacidad de aprendizaje.

“Los cient√≠ficos han estudiado las ratas con PCP durante d√©cadas, pero hasta ahora nadie realmente sab√≠a lo que ocurr√≠a en los cerebros de la rata a un nivel molecular. Ahora presentamos lo que consideramos es la serie de datos prote√≥micos m√°s extensos hasta la fecha”, dice says Ole N√łrregaard Jensen.

La PCP se absorbe con gran rapidez en el cerebro y sólo permanece en este órgano durante algunas horas. Por consiguiente, era importante que los investigadores analizaran las células cerebrales de las ratas poco después que se les inyectaba la droga alucinógena.

“Pod√≠amos ver los cambios en las prote√≠nas del cerebro ya despu√©s de 15 minutos. Y luego de 240 minutos, casi desaparec√≠an”, dice Ole N√łrregaard Jensen.

La Universidad de Dinamarca del Sur cuenta con uno de los equipos m√°s avanzados del mundo para estudiar las prote√≠nas y Ole N√łrregaard Jensen y sus colaboradores utilizaron los espectr√≥metros de masa de la Universidad para sus estudios de prote√≠nas.

352 proteínas producen cambios en el cerebro

“Descubrimos 2604 prote√≠nas y en 352 de ellas vimos cambios que se pueden asociar a las inyecciones de PCP. Estas 352 prote√≠nas ser√°n muy interesantes de estudiar con m√°s detalle para determinar si tambi√©n se alteran en personas con esquizofrenia, y si √©ste es el caso, desde luego ser√≠a interesante tratar de desarrollar un f√°rmaco que pueda evitar los cambios de las prote√≠nas que conducen a la esquizofrenia”, dice Ole N√łrregaard Jensen sobre el descubrimiento y el trabajo que ahora tienen por delante.

Las 352 proteínas en los cerebros de las ratas respondieron de inmediato cuando se expuso a los animales a PCP. En términos generales, la droga hacía que se activaran o se inactivaran las proteínas cuando no debían hacerlo. Eso iniciaba una reacción en cadena de otras alteraciones en la red molecular alrededor de las proteínas, como los cambios en el metabolismo y el equilibrio de calcio.

“Estas 352 prote√≠nas son las que causan el cambio en la conducta de las ratas, y los fen√≥menos probablemente son equivalentes a los cambios devastadores observados en un cerebro esquizofr√©nico”, explica Ole N√łrregaard Jensen.

El protocolo para estudiar las prote√≠nas cerebrales de la rata con espectrometr√≠a de masa, desarrollado por Ole N√łrregaard Jensen y sus colaboradores, no est√° limitado a los estudios de la esquizofrenia, tambi√©n se puede utilizar para explorar otras enfermedades.

La investigación fue una colaboración entre la Universidad de Dinamarca del Sur, el Instituto Tecnológico Danés y NeuroSearch A/S.

Detalles sobre el experimento

Se utilizaron 12 ratas para el experimento. Seis recibieron una inyección de la droga alucinógena PCP (10 mg/kilogramo de peso corporal) y a seis se les inyectó una solución isotónica que sirvió de control. Después de 15 minutos, los primeros dos animales de cada grupo fueron sacrificados y en menos de dos minutos se obtuvieron muestras de sus cerebros (lóbulos temporales) y rápidamente se congelaron en nitrógeno líquido.

Después de 30 y 240 minutos, respectivamente, se hizo lo mismo con las otras ratas. Todos los experimentos se realizaron de acuerdo con las directrices danesas y de la Unión Europea para la manipulación de animales de laboratorio. Las muestras de tejido obtenidas se sometieron luego a diversos análisis de proteínas mediante espectrometría de masa. Los análisis revelaron diferencias en la fosforilación de las proteínas que indicaban cuáles proteínas había resultado afectadas por la droga PCP.

La interpretación de la serie compleja de datos de las proteínas parece indicar que la PCP afecta a diversos procesos de las células cerebrales y conduce a cambios en el equilibrio del calcio en las células del cerebro, en el transporte de sustancias dentro y fuera de las células, en el metabolismo celular y en la estructura del esqueleto interno de las células, es decir, el citoesqueleto.
abril 16/2014 (Medcenter.com)

Pawel Palmowski, Adelina Rogowska-Wrzesinska, James Williamson, Hans C. Beck, Jens D. Mikkelsen, Ole N. Jensen. Acute Phencyclidine Treatment Induces Extensive and Distinct Protein Phosphorylation in Rat Frontal Cortex. Journal of Proteome Research, 13 (3): 1578 . Feb 12 2014

 
 
 
Clínica Central Cira García
IPK (Instituto de Medicina Tropical)
IPK (Instituto de Medicina Tropical)
INOR
Instituto Nacional de Oncológica y Radiobiologia
Ciren
CIREN(Centro Internacional de Restauración Neurológica).
Centro de Salud La Pradera
Centro Internacional de Salud La Pradera
 
Cubandhealth.com :.: Todos lo derechos reservados. 2013
Discover the latest news and video about health