在暴露于晚期妊娠缺氧的后代中,社会和认知功能中的性别和年龄差异
Steve Mabry1, E Nicole Wilson1, Jessica L Bradshaw1
1Department of Pharmaceutical Sciences, School of Pharmacy, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX, 76107, USA.
Biology of sex differences
|November 11, 2023
概括
孕期睡眠呼吸暂停 (低氧睡眠障碍) 可以导致后代的性别和年龄特定的行为变化,包括社会功能障碍和重复性行为. 这些影响凸显了母亲健康对神经发育的重要性.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 生殖医学 生殖医学
背景情况:
- 孕期睡眠呼吸暂停,一种低氧睡眠障碍,影响8-26%的怀孕,增加后代的中央神经系统功能障碍的风险.
- 胎儿海马体对缺氧具有性别特异的敏感性,与社会,焦虑和认知缺陷相关的损害.
- 妊娠期睡眠呼吸暂停对这些海马相关功能的影响以及潜在的性别/年龄变化仍然不清楚.
研究的目的:
- 为了研究妊娠期睡眠呼吸暂停和后代的海马相关行为之间的关系.
- 为了确定妊娠晚期的慢性间歇性缺氧 (CIH) 是否会导致后代的性别和年龄特定的行为障碍.
- 在老鼠中模拟晚期妊娠睡眠呼吸暂停,以检查其对后代神经发育的影响.
主要方法:
- 定时怀孕的Long-Evans大鼠从15-19号妊娠日开始暴露于CIH或诺莫克西亚.
- 后代在青春期和年轻成人时期接受了行为测试.
- 评估社会功能,重复行为,焦虑类行为,空间记忆,海马神经元活动和激素水平.
主要成果:
- 晚期妊娠CIH诱导后代的性别和年龄特定的行为和荷尔蒙变化.
- 暴露于CIH的青春期女性表现出社会功能受损,重复性行为增加和皮质水平升高.
- 青春期的男性表现出短暂的空间记忆缺陷,而年轻的成年女性表现出社会脱离和抑制的皮质激素.
结论:
- 怀孕晚期的缺氧会导致后代的性别和年龄相关的行为和生理结果.
- 这些结果包括社会功能障碍,重复行为和认知障碍.
- 这些发现强调了怀孕期间母亲健康对后代神经发育的关键作用.
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