{"ok":true,"nota":{"id":"5c4a12edcbe74473","slug":"una-proteina-del-rinon-ayuda-a-controlar-el-potasio-cuando-sube-la-ald-5c4a12","titulo":"Una proteína del riñón ayuda a controlar el potasio cuando sube la aldosterona","resumen":"Investigadores midieron la proteína GDF15 en pacientes con aldosteronismo primario y en ratones modificados genéticamente. Compararon cómo se adapta el riñón con y sin esa proteína.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Billiet, J., Morla, L., Vidal-Petiot, E., Wirth, E., Laney, M., Baron, S., Amar, L., Cheval, L., Crambert, G.","url":"https://www.biorxiv.org/content/10.64898/2026.10.18.759915v1?rss=1","imagen":"/hoy/portada/5c4a12edcbe74473","tema":"salud","subtemas":["hipertension","riñon","aldosteronismo","potasio","investigacion clinica"],"entidades":["GDF15"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-22T00:00:00.000Z","indexTs":"2026-10-23T06:48:38.804Z","hash":"ccce9be65a522148d602d6f8a76c08caa24e9801000ecc6bdc7954f08913a4d2","tsa":{"time":"Oct 23 06:48:59 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"El aldosteronismo primario es la causa secundaria más común de hipertensión, pero solo entre 9 y 37 por ciento de los pacientes baja el potasio, lo que sugiere un mecanismo de defensa del cuerpo. El estudio identifica a GDF15 como una pieza de ese mecanismo. Para pacientes hipertensos en Argentina, entender por qué algunos se compensan y otros no podría orientar diagnósticos y tratamientos más precisos. Los resultados vienen de 81 pacientes y de ratones, por lo que falta confirmar el alcance en la práctica clínica.","quienFirma":"bioRxiv · preprints","confianza":"preprint","consulta":null},"sello":{"hash":"ccce9be65a522148d602d6f8a76c08caa24e9801000ecc6bdc7954f08913a4d2","sello":"6577fe7ab3e8ee73c395862504990c74e8fd8b09a0ea586ba22470181d034657","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6576903,"aleatorio":"8e583525a288ba13cde66d0d6539d282d867cec58f75a0217a855687a27f9649","tiempo":"2026-10-23T06:48:30.000Z"},"nist":{"cadena":2,"pulso":1995651,"salida":"AA82134D649B7B25F10D77FD67053808011261EF94B49E048C931DF7D357E824C95C66604E50CE6E37F934A39EE493177DEA66983586EA3E4667145C3C8919D6","tiempo":"2026-10-23T06:48:00.000Z"},"noAntes":"2026-10-23T06:48:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 23 06:48:59 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Renal adaptation to primary aldosteronism requires GDF15 to control plasma potassium level in mice and human.","descripcion":"Background Primary aldosteronism (PA), the most common secondary cause of hypertension, results from autonomous aldosterone production, driving renal Na retention and K secretion. Paradoxically, only 9 to 37% of PA patients develop hypokalemia, suggesting adaptive mechanisms. Growth differentiation factor 15 (GDF15) promotes intercalated cell type A (ICA) proliferation and K reabsorption in the collecting duct, but its role in PA is unexplored. Methods We measured urinary and plasma GDF15 in 81 PA patients (two centers) and 41 controls. A murine model of chronic mineralocorticoid excess (DOCP treatment) was used in wild-type (WT) and GDF15 knockout (GDF15KO) mice to assess renal adaptation. ","pubDate":"2026-10-22","url":"https://www.biorxiv.org/content/10.64898/2026.10.18.759915v1?rss=1"},"indexado":"2026-10-23T06:48:38.804Z"}}