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Punica granatum L. 调节玻璃化牛卵巢组织中抗氧化活性
Solano Dantas Martins1,2, Maria Alice Felipe Oliveira1,2, Venância Antônia Nunes Azevedo3
1Graduate Program in Biotechnology (PPGB), Federal University of Ceará, 100, Maurocélio Rocha Ponte Avenue, Sobral 62041-040, CE, Brazil.
石榴提取物 (EE-PG) 通过保持卵泡形态和氧化还原平衡,改善了牛卵巢组织玻璃化. 这表明EE-PG可以增强牛卵巢组织的冷保存结果.
科学领域:
- 生殖生物学 生殖生物学
- 低温生物学 低温生物学
- 生物化学 生物化学
背景情况:
- 卵巢组织玻璃化对于保持牛的生育能力至关重要.
- 玻璃化可以诱导氧化应激并损害卵巢组织.
- 红枣 (Punica granatum L.) 具有抗氧化作用的特性.
研究的目的:
- 评估乙醇石榴提取物 (EE-PG) 在减轻牛卵巢组织玻璃化过程中的损伤的疗效.
- 评估EE-PG对卵泡形态,超结构,氧化还原状态和抗氧化基因表达的影响.
主要方法:
- 牛卵巢皮层碎片被玻璃化,含有或不含不同度的EE-PG.
- 评估了卵泡形态,超结构,树皮细胞密度,原蛋白分布和氧化还原标记.
- 评估了与抗氧化剂相关的基因 (CAT,GPX1,NRF2) 和SOD酶活性的mRNA表达.
主要成果:
- 10和100μg/mL的EE-PG保持了卵泡形态和减轻了玻璃化引起的超结构损伤.
- EE-PG保持了氧化还原平衡,MDA水平与新鲜对照相比.
- 虽然抗氧化基因的下调,但SOD活性增加,表明复杂的适应性反应.
结论:
- 在玻璃化过程中,EE-PG (10和100μg/mL) 有效地支持牛卵巢组织形态和氧化还原平衡.
- EE-PG显示了改善牛卵巢组织冷保存方案的潜力.
- 需要进一步的研究来阐明基因表达和抗氧化剂防御机制之间的复杂相互作用.
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