Vitrificación de embriones bovinos cultivados en un medio suplementado con β-mercaptoetanol

Palabras clave: Antioxidante, Crioconservación, Criosupervivencia, Embriones bovinos

Resumen

Los objetivos de este trabajo fueron evaluar diferentes concentraciones de β-mercaptoetanol durante el cultivo in vitro de embriones bovinos y determinar el efecto de la vitrificación en la supervivencia de embriones cultivados en un medio suplementado con ß-ME. Experimento 1: post-fertilización, los cigotos fueron asignados a grupos de cultivo con 0, 50, 100 y 150 µM de β-ME. Experimento 2: los cigotos se cultivaron en presencia o ausencia de 100 µM de β-ME y fueron vitrificados por el método Cryologic. Se determinó la supervivencia, el total de células e índice de apoptosis como indicadores de calidad y criotolerancia. La tasa de división sigue una tendencia lineal negativa y fue menor a una concentración de 150 µM de β-ME, no encontrándose diferencias entre las demás concentraciones. El porcentaje de embriones sigue una tendencia cuadrática con una mayor respuesta a una concentración de 100 µM de β-ME. La suplementación con 100 µM de β-ME aumentó la supervivencia, el total de células y redujo la apoptosis. Se evidenció que la suplementación del medio de cultivo con β-ME (100 µM) aumenta el porcentaje de embriones, la supervivencia y el número de células posterior a la vitrificación por el método Cryologic y reduce la apoptosis.

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Biografía del autor/a

Emilia Rosa Lliteras-Martínez, Universidad Autónoma de Baja California Sur, México.

Universidad Autónoma de Baja California Sur, México.

Alejandro Palacios-Espinosa, Universidad Autónoma de Baja California Sur, México.

Universidad Autónoma de Baja California Sur, México.

Victor Manuel Meza-Villalvazo, Universidad del Papaloapan, México

Universidad del Papaloapan, Campus Tuxtepec, México.

José Abad-Zavaleta, Universidad del Papaloapan, México

Universidad del Papaloapan, Campus Tuxtepec, México.

Peter Bols, Universidad de Amberes, Bélgica

Universidad de Amberes, Facultad de Ciencias Farmacéuticas, Biomédicas y Veterinarias, Laboratorio de Fisiología Veterinaria, Bélgica.

José Luis Espinoza-Villavicencio, Universidad Autónoma de Baja California Sur, México

Universidad Autónoma de Baja California Sur, México

Ricardo Ortega-Pérez, Universidad Autónoma de Baja California Sur, México.

Universidad Autónoma de Baja California Sur, México.

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Publicado
2025-01-05
Cómo citar
Lliteras-Martínez, E. R., Palacios-Espinosa, A., Meza-Villalvazo, V. M., Abad-Zavaleta, J., Bols, P., Espinoza-Villavicencio, J. L., & Ortega-Pérez, R. (2025). Vitrificación de embriones bovinos cultivados en un medio suplementado con β-mercaptoetanol . Revista De La Universidad Del Zulia, 16(45), 97-109. https://doi.org/10.5281/zenodo.14602061