{"ok":true,"nota":{"id":"1d567ea883c935a6","slug":"una-proteina-de-las-neuronas-ayuda-a-mantener-la-memoria-y-las-conexio-1d567e","titulo":"Una proteína de las neuronas ayuda a mantener la memoria y las conexiones del cerebro al envejecer","resumen":"Investigadores estudiaron una enzima llamada TAK1 en neuronas de ratones. Al reducirla, se debilitaron las conexiones entre neuronas del hipocampo y empeoró la memoria a corto y largo plazo.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Liu, Y., Huang, M.-Q., Zhang, Y.-C., Jia, Z.-R., Min, X., Zhou, Z.-Y., Chen, J.-Y., Zong, F.-J., Gao, J., Xu, Y.-W., Wan","url":"https://www.biorxiv.org/content/10.64898/2026.10.25.761716v1?rss=1","imagen":"/hoy/portada/1d567ea883c935a6","tema":"ciencia","subtemas":["memoria","envejecimiento cerebral","sinapsis","hipocampo","neurociencia"],"entidades":["bioRxiv","TAK1","receptor GluN2B"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-26T00:00:00.000Z","indexTs":"2026-10-26T15:25:50.345Z","hash":"7cfcc2c4ee9ebae6c6518cd3fb02b75afa6eca65044bc2c48044fadecf515abb","tsa":{"time":"Oct 26 15:26:29 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"A medida que envejecemos, las conexiones entre neuronas se van debilitando, y eso se nota en los olvidos cotidianos. Este trabajo sugiere que una proteína concreta sostiene ese equilibrio, lo que abre una vía para pensar tratamientos futuros. Por ahora los resultados son en ratones y no sirven para recetar nada. Vale la pena preguntarse qué hábitos de hoy cuidan esas conexiones que no vemos.","quienFirma":"bioRxiv (preprint de neurociencia en roedores)","confianza":"preprint","consulta":null},"sello":{"hash":"7cfcc2c4ee9ebae6c6518cd3fb02b75afa6eca65044bc2c48044fadecf515abb","sello":"67e461c50bab2de0ef00fda369a0453bf6d8e3291f4c369eabaaf82ad3eb0d62","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6586578,"aleatorio":"c7eacd3bdd6186c021eec2332dc0801458c4d48bb0315723a1f4715b256cc5fc","tiempo":"2026-10-26T15:26:00.000Z"},"nist":{"cadena":2,"pulso":2000482,"salida":"7CB5612A975B096AD2025D6029FC76EF2453D78476A5A81FDDF7BA6810BB1F95736BAA8A9C954033F423191BA434921471D2704F34765066B98EDFB41E21B8A2","tiempo":"2026-10-26T15:25:00.000Z"},"noAntes":"2026-10-26T15:26:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 26 15:26:29 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Postsynaptic TAK1-GluN2B axis supports hippocampal synaptic integrity and cognitive function during aging","descripcion":"Transforming growth factor {beta}-activated kinase 1 (TAK1) is a serine/threonine kinase best known for its roles in immune and stress-response signaling, yet its physiological function in mature neurons remains poorly understood. Here we identify neuronal TAK1 as a regulator of excitatory synaptic integrity, hippocampal plasticity and memory. Conditional reduction of TAK1 in forebrain excitatory neurons impaired short- and long-term memory and was accompanied by attenuated long-term potentiation in the hippocampus. At the cellular level, TAK1 deficiency reduced dendritic spine density and suppressed excitatory synaptic transmission, whereas genetic or pharmacological disruption of TAK1 kina","pubDate":"2026-10-26","url":"https://www.biorxiv.org/content/10.64898/2026.10.25.761716v1?rss=1"},"indexado":"2026-10-26T15:25:50.345Z"}}