Análisis del páncreas endocrino en la edad adulta en ratas nacidas con restricción del crecimiento intrauterino

Autores/as

DOI:

https://doi.org/10.33448/rsd-v14i7.49197

Palabras clave:

Restricción del crecimiento intrauterino, Islotes pancreáticos, Estrés oxidativo, Diabetes.

Resumen

La hiperglucemia materna no controlada puede programar negativamente el desarrollo fetal, resultando en restricción del crecimiento y un mayor riesgo de enfermedades metabólicas en la vida adulta. Diabetes materna no controlada (grave) fue inducida quimicamente para tener restricción del crecimiento fetal. El objetivo de este estudio fue evaluar las características funcionales de los islotes pancreáticos de estas ratas adultas SGA al final de la gestación, para comprender el papel de las principales hormonas endocrino-pancreáticas en las disfunciones reproductivas. Ratas Sprague Dawley no diabéticas y con diabetes grave tubieron crías hembras (F1), que fueron clasificadas como adecuadas (AEG) o pequeñas (PEG) para la edad gestacional: AEG de madres no diabéticas (Control) y PEG de madres con diabetes grave (n=10 animales/grupo). Sin embargo, no se observaron diferencias en las células marcadas para insulina, glucagón, proliferación y muerte (apoptosis) celular. La diabetes materna descompensada conduce a restricción del crecimiento intrauterino en la descendencia y se asocia con intolerancia a la glucosa, hiperinsulinemia y estrés oxidativo en la vida adulta de las hembras. El aumento de células inmunomarcadas para somatostatina sugiere que la disfunción glucémica puede involucrar alteraciones en células no β, afectando la señalización y secreción de insulina, destacando la necesidad de estudios adicionales sobre los mecanismos celulares involucrados.

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Publicado

2025-07-10

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Ciencias de la salud

Cómo citar

Análisis del páncreas endocrino en la edad adulta en ratas nacidas con restricción del crecimiento intrauterino. Research, Society and Development, [S. l.], v. 14, n. 7, p. e3414749197, 2025. DOI: 10.33448/rsd-v14i7.49197. Disponível em: https://rsdjournal.org/rsd/article/view/49197. Acesso em: 5 dec. 2025.