Publican los resultados de su investigación en el último número de "Science", donde explican que la válvula, que es realmente un canal iónico en la pared de las células cardíacas, proporciona nueva información sobre cómo se conserva la energía en el corazón y podría conducir al desarrollo de nuevas terapias cardiológicas.
En opinión de los autores, la activación de este canal iónico optimiza la energía y mejora la fuerza global del corazón. Además, este efecto beneficioso puede activarse mediante un fármaco, lo cual le permitiría sobrevivir en mayor medida a la falta de oxígeno reduciendo el daño causado por la parada cardíaca.
El nuevo canal se conoce como mitoKCa (canal de potasio activado por calcio), se halla en la membrana interior de la mitocondria y permite que los iones de potasio circulen, especialmente cuando se incrementa el calcio en la célula.
Webs Relacionadas
Science
http://www.sciencemag.org/
Johns Hopkins University
http://www.jhu.edu/
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