产前乳酸能保护成长受限制的绵羊胎儿的海马发育吗?
Dahyun Kang1,2, Ingrid Dudink1,2, Tegan A White1,2
1The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia.
Cells
|December 24, 2025
概括
在生育前给予胎儿羊的乳托费林,其生长受限显示出抗炎作用和脑衍生神经营养因子 (BDNF) 的增加. 然而,长时间暴露可能会影响胎儿的大脑发育和血液平衡.
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
- 药理学 药理学是指药理学的学科.
背景情况:
- 早期发作的胎儿生长限制 (FGR) 与胎儿大脑发育受损有关,特别是在海马体.
- 乳酸因其抗炎和抗氧化特性而闻名,可能提供神经保护.
- 产前乳酸对FGR诱导的大脑变化的影响需要进一步研究.
研究的目的:
- 为了确定产前乳酸的给药是否改善了患有FGR的胎儿羊的海马体结构.
- 评估乳酸对胎儿海马体中神经元生长和神经炎症的影响.
- 评估乳酸对来自大脑的神经营养因子 (BDNF) 水平和微质活性的影响.
主要方法:
- 早期发病的FGR通过单一动脉绑定诱导在绵羊胎儿中.
- 乳二被口服给95至127天妊娠年龄 (dGA) 的母羊.
- 在127dGA时分析了海马体结构,神经元形态,BDNF水平和微质细胞计数.
主要成果:
- 乳酸显著增加了神经元的丰富性和改变了神经元形态,但没有改变整个海马体结构.
- 在暴露于乳酸铁素后,海马BDNF水平升高.
- 乳二烯降低了CA3区域的微质细胞数量,这表明该区域具有特定的抗炎作用.
结论:
- 产前乳酸在胎儿大脑中表现出抗炎作用,并提高BDNF水平.
- 虽然对神经营养支持和减少炎症有好处,但长时间暴露于乳酸可能对胎儿大脑发育和血液学参数产生复杂的影响.
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