{"ok":true,"nota":{"id":"5d2a5390e9d07e8c","slug":"una-proteina-de-las-neuronas-ayuda-a-alinear-las-conexiones-entre-celu-5d2a53","titulo":"Una proteína de las neuronas ayuda a alinear las conexiones entre células cerebrales","resumen":"Investigadores estudiaron con mucho detalle una proteína presente en la parte que envía señales de las neuronas. Vieron que ayuda a organizar las zonas donde se liberan mensajeros químicos y a alinearlas con los receptores de la neurona que recibe.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"DeMarco Hibbs, E. M., Mitias, S., Aitken, R., Levy, A. D., Blanpied, T. A.","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760724v1?rss=1","imagen":"/hoy/portada/5d2a5390e9d07e8c","tema":"ciencia","subtemas":["sinapsis","neurociencia basica","proteinas","neurotransmision","memoria"],"entidades":["PTPσ"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-25T00:00:00.000Z","indexTs":"2026-10-25T15:20:00.158Z","hash":"24101fe877fd52044d7b48dfda52a33bf27c066e5bef7e74470f80684f7d618d","tsa":{"time":"Oct 25 15:20:33 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Cada pensamiento depende de que los mensajes entre neuronas lleguen exactos al lugar correcto, y esta investigación muestra parte de la maquinaria que lo asegura. Para una persona común, entender esto ayuda a ver que la memoria y el aprendizaje tienen una base física muy precisa. Cuando esa precisión falla, aparecen problemas que nadie ve desde afuera. El estudio está en etapa básica y todavía es lejano a cualquier aplicación clínica.","quienFirma":"Universidad no identificada en el preprint","confianza":"preprint","consulta":null},"sello":{"hash":"24101fe877fd52044d7b48dfda52a33bf27c066e5bef7e74470f80684f7d618d","sello":"d70f749426988b7075624ca771bc31429981b29816ac5751c0c9c0b1c9082fc3","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6583686,"aleatorio":"4f8fce4a05fbe4089eba6112d19ac99867e7f4f7af9befca10d480e758c43c73","tiempo":"2026-10-25T15:20:00.000Z"},"nist":{"cadena":2,"pulso":1999036,"salida":"F7331E5C5931ADF34187C4BAF41FD080446C8D7F44E37E183A3F2ED785AF6CF61E80BED51857F378219964CEDE8B74C758C7D6D5C50074F84D0984ED528F41B7","tiempo":"2026-10-25T15:19:00.000Z"},"noAntes":"2026-10-25T15:20:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 25 15:20:33 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Nanoarchitecture of the presynaptic cell adhesion molecule PTPσ in relation to prospective vesicle fusion sites and postsynaptic NMDA receptors","descripcion":"Protein organization at individual synapses tunes synaptic function. Presynaptic release-regulating proteins and postsynaptic receptors each concentrate into subsynaptic nanoclusters, and their precise alignment across the cleft into nanocolumns can maximize receptor activation following vesicle fusion. However, both the molecular organization defining presynaptic fusion sites and the mechanisms by which they are spatially coordinated with postsynaptic complexes remains unclear. Presynaptic transmembrane cell adhesion molecules may mediate both processes as they could simultaneously anchor cytosolic fusion machinery to the presynaptic membrane and bridge the cleft to coordinate PSD organizat","pubDate":"2026-10-25","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760724v1?rss=1"},"indexado":"2026-10-25T15:20:00.158Z"}}