{"ok":true,"nota":{"id":"fbb4b7bce6f33408","slug":"privar-de-sueno-altera-el-cerebro-de-ratones-pero-una-estimulacion-de--fbb4b7","titulo":"Privar de sueño altera el cerebro de ratones, pero una estimulación de luz lo compensa","resumen":"Investigadores estudiaron ratones privados de sueño y cómo responde su corteza cerebral. Probaron una estimulación con luz parpadeante y evaluaron si modifica el estrés celular que provoca la falta de descanso.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Prius Mengual, J., Hoerder-Suabedissen, A., Mao, R., Taylor, L., Chakrabarty, A., Newey, S., Akerman, C., Vyazovskiy, V.","url":"https://www.biorxiv.org/content/10.64898/2026.10.16.759564v1?rss=1","imagen":"/hoy/portada/fbb4b7bce6f33408","tema":"ciencia","subtemas":["sueño","neurociencia","estrés celular","ratones","investigación básica"],"entidades":[],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-20T00:00:00.000Z","indexTs":"2026-10-20T14:25:26.749Z","hash":"c7dcbed7aa62e80cce0ad8988b3c744cef8e328fd0b1b390812c283e5b723a51","tsa":{"time":"Oct 20 14:27:21 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"La falta de sueño genera estrés en las células cerebrales, y el estudio muestra que actuar sobre la actividad de la corteza puede cambiar esa respuesta en ratones. Para una persona que duerme poco por trabajo o estudio, la lectura práctica sigue siendo dormir bien, porque estos resultados todavía vienen de animales y de un procedimiento que no se aplica en personas. Es un paso básico en la investigación, no una solución.","quienFirma":"Preprint en bioRxiv (institución no indicada en la fuente)","confianza":"preprint","consulta":null},"sello":{"hash":"c7dcbed7aa62e80cce0ad8988b3c744cef8e328fd0b1b390812c283e5b723a51","sello":"60ded50d0a0ee08d614b68353defb0612d397a0efad9ea2ade1848f51c8ed25a","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6569180,"aleatorio":"0c3adb1760f2c85b375daddd44899109817540f5d27c13ddee553bae30c5427a","tiempo":"2026-10-20T14:27:00.000Z"},"nist":{"cadena":2,"pulso":1991795,"salida":"D4D2B04303A5B41F484C86DB438B8E0C95FCC89E084BE5BBBB2E330616597BBCB3A1560995DA52DFF63FF8DDDCA72180409DCFF4097FD9B157B5F2A5FC57D2A5","tiempo":"2026-10-20T14:26:00.000Z"},"noAntes":"2026-10-20T14:27:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 20 14:27:21 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Enhancing cortical electrophysiological signatures of sleep overrides ER stress responses in sleep-deprived mice","descripcion":"Sleep deprivation (SD) triggers characteristic changes in the cortical electroencephalogram (EEG) during waking and sleep, as well as upregulating molecular signatures of neuronal activity, synaptic plasticity, and endoplasmic reticulum (ER) stress. This includes the induction of the unfolded protein response (UPR), the primary marker and adaptive mechanism of ER stress. Yet how cortical neuronal activity during SD contributes to the induction of these molecular signatures remains unknown. Here we investigate whether manipulating cortical activity during SD with a physiological stimulation paradigm (flickering light stimulation, FLS) affects the induction of the UPR. As expected, SD alone up","pubDate":"2026-10-20","url":"https://www.biorxiv.org/content/10.64898/2026.10.16.759564v1?rss=1"},"indexado":"2026-10-20T14:25:26.749Z"}}