在条形体中调节性内神经元的分布和密度的性别差异
Meghan Van Zandt1, Deirdre Flanagan1, Christopher Pittenger1,2,3,4,5
1Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.
Frontiers in cellular neuroscience
|July 24, 2024
概括
雄性小鼠比雌性小鼠具有更多的胆固醇内神经元 (CIN) 和明显的快速激增内神经元 (FSI) 分布. 这些条状内部神经元的性别差异可能是神经精神疾病中性别差异的基础.
科学领域:
- 神经科学是一个神经科学.
- 神经解剖学是一个神经解剖学.
- 神经生物学 神经生物学 神经生物学
背景情况:
- 皮质 - 基底质回路功能障碍与自闭症和图雷特综合征 (TS) 等神经精神疾病有关.
- 这些疾病表现出显著的性别差异,在男性中更为普遍.
- 状内神经元,包括胆性内神经元 (CIN) 和快速激增内神经元 (FSI),都与TS有关.
研究的目的:
- 为了研究状内神经元的密度和分布的性别差异.
- 探索这些神经解剖学差异与神经精神疾病中的基于性别的变异之间的潜在联系.
主要方法:
- 对CIN,FSI和体静止素表达 (SOM) 内神经元的立体量化.
- 在雄性和雌性小鼠的背上条纹体 (caudate-putamen) 和腹部条纹体 (nucleus accumbens) 中进行分析.
主要成果:
- 男性的CIN密度高于女性,特别是在背上条纹体.
- 与女性相比,FSI在男性中显示出较大的背腔腹腔密度梯度.
- SOM 内神经元在腹状条纹体中表现出更密集的分布,没有观察到性别差异.
结论:
- 在条状FSI和CIN密度和分布中观察到的性别差异可能会导致基底质中的功能性性别差异.
- 这些发现提供了对影响基底腺的神经精神疾病中性别差异的神经生物学基础的见解.
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