在 hylobatids 中,上腺激素水平的与年龄相关的变化
Emilee N Hart1, Susan Margulis2, Rafaela S C Takeshita3
1Department of Anthropology, Kent State University, Kent, OH, USA.
General and comparative endocrinology
|June 13, 2025
概括
希洛巴特类动物或吉本类动物表现出延迟的上腺,即产后上腺激活,在青春期之前,脱二三酸盐 (DHEAS) 水平上升. 这种模式在所有猿类物种中都有所共享,与其他灵长类动物不同.
科学领域:
- 灵长类内分泌学 原始类内分泌学
- 进行比较的内分泌学.
- 进化生物学是进化的生物学.
背景情况:
- 上腺激活,上腺激活,其特点是脱氨二酸盐 (DHEAS) 水平升高.
- 灵长类动物表现出各种DHEAS分泌模式:人类和大猿的青春期前升高 (adrenarche),或生后下降的cercopithecines.
- 海洛巴提类 (gibbons) 是一个独特的猿类群体,其DHEAS分泌模式尚不完全理解.
研究的目的:
- 为了研究脱水氨硫酸盐 (DHEAS) 在 hylobatid 开发过程中分泌的模式.
- 为了确定海洛巴提德是否表现出上腺或DHEAS水平的持续下降.
- 分析年龄,性别和性别对 hylobatids 的 DHEAS 水平的影响.
主要方法:
- 从35只雌性和29只雄性动物园养的类动物 (Hylobates,Nomascus,Symphalangus) 收集了便样本,年龄在1-54岁之间.
- 长度便样本从7只在人类护理下的雌性类动物中收集.
- 使用酶免疫试验量化便DHEAS水平,并使用通用线性混合效应模型分析数据.
主要成果:
- 在所有hylobatid属中观察到年龄和便DHEAS水平之间的显著正相关性,这表明预青春期的增加与延迟的上腺癌相一致.
- 性别对DHEAS水平只有在Symphalangus属中具有显著影响.
- 与人类和其他灵长类动物不同的是,成年和老的海洛巴丁没有显示DHEAS水平的下降,这表明缺少上腺衰老.
结论:
- 海洛巴特类动物表现出延迟的上腺,其特征是青春期前DHEAS水平的上升,这是所有猿类物种共享的模式.
- 较老的海洛巴特类动物中缺少上腺衰老表明,灵长类动物内上腺功能有明显的衰老模式.
- 这些发现有助于理解灵长类动物发育内分泌学和上腺的进化.
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