在反动物中使用新的重组蛋白来刺激卵巢
Pietro Sampaio Baruselli1, Laís Ângelo de Abreu1, Bruna Lima Chechin Catussi1
1Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil.
Animal reproduction
|September 18, 2023
概括
像FSH和eCG这样的重组激素提供了更安全,更有效的替代品,以改善动物辅助生殖中的超排卵和胚胎生产. 这些进步提高了反动物的繁殖效率.
科学领域:
- 在反动物中的生殖生物学和生物技术.
- 激素治疗和辅助生殖技术 (ART).
背景情况:
- 传统的淋巴激素生产依赖于来自屠宰场的垂体腺,造成污染和病原体传播的风险.
- 使用卵泡刺激激素 (FSH) 进行超排卵的现有方法具有局限性,包括劳动强度和可变反应.
- 马体胆性腺激素 (eCG) 和人类胆性腺激素 (hCG) 分别从动物血液或人类尿液中提取.
研究的目的:
- 评估重组性淋巴激素和牛体内激素在改善反动物辅助生殖技术方面的疗效.
- 探索动物来源激素的替代品,以改善生殖结果.
主要方法:
- 在卵细胞采集 (OPU) 之前给予长效重组牛FSH (rFSH) 进行超排卵.
- 在基于孕激素/雌激素的卵泡生长和排卵协议中利用复合式eCG类活性 (r-eCG).
- 研究了再组合牛体内激素 (rbST) 对反动物生殖参数的影响.
主要成果:
- 一次注射牛的rFSH产生了可比的超排卵反应和高质量的胚胎产量.
- r-eCG治疗在增强卵泡生长,排卵和人工授精 (P/AI) 怀孕方面表现有前途.
- 在接受者中,rbST治疗改善了每AI的怀孕 (P/IA),捐赠胚胎生产和每ET的怀孕 (P/ET).
结论:
- 再组合激素为反动物的辅助生殖技术提供非动物衍生的替代品.
- 这些进步为动物繁殖提供了更好的生殖效率和成功率.
- 再组合性淋巴激素和体内激素在可持续和安全的动物育种方面迈出了一大步.
关键词:
牛体育生长因子 牛体育生长因子卵泡刺激激素激素激发卵泡激发激素激发卵泡激发激素激发卵泡激发激素激发激素激发激素激发激素激发激发激发激发激发激发激发激发激发黄蛋白化激素 (luteinizing hormone) 是一种具有性作用的激素.更多相关视频
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