Un nuevo estudio sugiere que la serotonina podría empeorar los síntomas del tinnitus

Una nueva investigación muestra que la serotonina, un neurotransmisor potenciado por muchos antidepresivos, puede intensificar el tinnitus. Los científicos identificaron un circuito cerebral específico en ratones que vincula niveles más altos de serotonina con comportamientos que imitan esta afección auditiva.

Un equipo de la Oregon Health & Science University y la Anhui University en China publicó los hallazgos en la revista Proceedings of the National Academy of Sciences. Utilizaron optogenética para estimular las neuronas productoras de serotonina y observaron una mayor actividad en las regiones cerebrales auditivas, junto con respuestas similares al tinnitus en los ratones mediante una prueba de sobresalto modificada. El estudio se basa en trabajos anteriores de 2017 y coincide con los informes de algunos pacientes cuyo tinnitus empeora al tomar ISRS.

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