{"ok":true,"nota":{"id":"b901a39c257afb41","slug":"un-dano-muscular-por-estiramiento-podria-deberse-a-globulos-rojos-que--b901a3","titulo":"Un daño muscular por estiramiento podría deberse a glóbulos rojos que se escapan y oxidan el tejido","resumen":"Investigadores estudiaron en ratones lesiones musculares por contracciones excéntricas, típicas del deporte. Analizaron qué pasa con los glóbulos rojos que salen de los vasos dañados y cómo eso alimenta la inflamación.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Liu, M., Wang, X., Liu, Z., You, F., Shen, Q., Zhang, M., Chen, S., Jing, Y., Yang, J., Wang, Y.","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760722v1?rss=1","imagen":"/hoy/portada/b901a39c257afb41","tema":"salud","subtemas":["lesiones musculares","deporte y recuperación","inflamación","hierro en sangre","ferroptosis"],"entidades":["bioRxiv"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-25T00:00:00.000Z","indexTs":"2026-10-25T17:22:31.762Z","hash":"18459c7007f687e020ce6c54fee07409e78cff1fc7098cb2aa3808f06c0e4f43","tsa":{"time":"Oct 25 17:22:45 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Hasta ahora el tratamiento de una contractura o desgarro muscular era casi solo para aliviar el dolor. Este trabajo sugiere que hay un mecanismo interno, ligado al hierro de la sangre, que empeora la lesión y podría ser un blanco para frenarla. Para quien entrena los fines de semana, eso puede significar recuperarse más rápido y volver a lesionarse menos. Pero es un estudio preliminar y falta comprobarlo en personas. Tu músculo no sabe que la sangre que se escapó está trabajando en su contra.","quienFirma":"Preprint en bioRxiv (investigación de origen no identificado en la fuente)","confianza":"preprint","consulta":null},"sello":{"hash":"18459c7007f687e020ce6c54fee07409e78cff1fc7098cb2aa3808f06c0e4f43","sello":"e3751c6bce43248fb21c7e1809fca362161e3f8a98b1d74f7fc9bafbd2b0d9c7","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6583931,"aleatorio":"791ee0339617b0266c093da0801ffabad73ddec5c4eded2ae4db6b84112bd1bb","tiempo":"2026-10-25T17:22:30.000Z"},"nist":{"cadena":2,"pulso":1999159,"salida":"E91A4268A877BCCDCAAA1538F7F2020E662CCA2B10B5AE2C00542A7D829095BB2CC08E55F31256CAF72D858719B4F9846C0191712E7A0986070E98D36C32658A","tiempo":"2026-10-25T17:22:00.000Z"},"noAntes":"2026-10-25T17:22:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 25 17:22:45 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Erythrocyte extravasation drives ferroptosis and inflammatory amplification in eccentric contraction-induced skeletal muscle injury via the heme-HO-1-iron axis","descripcion":"Eccentric contraction-induced skeletal muscle injury is a common sports-related condition characterized by pain, impaired muscle function, slow recovery, and frequent recurrence, yet treatment remains symptomatic and mechanism-based targets are lacking. Although microvascular disruption and erythrocyte extravasation characterize severe muscle strain, the metabolic fate of extravasated erythrocytes has received little attention. In hemorrhagic and hemolytic conditions, erythrocyte-derived heme can activate heme oxygenase-1 (HO-1)-mediated iron release and ferroptosis, potentially amplifying inflammation; however, whether this pathway contributes to eccentric muscle injury remains unknown. To ","pubDate":"2026-10-25","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760722v1?rss=1"},"indexado":"2026-10-25T17:22:31.762Z"}}