青少年女孩抑郁症的生物标志物:BDNF和表观遗传学
Weronika Zwolińska1, Karolina Bilska2, Kateryna Tarhonska3
1Department of Child and Adolescent Psychiatry, Karol Jonscher Clinical Hospital, Poznan University of Medical Sciences, Szpitalna 27/33 St., 60-572 Poznan, Poland.
International journal of molecular sciences
|March 28, 2024
概括
在患有抑郁症的青少年女孩中观察到脑衍生神经营养因子 (BDNF) 基因促进物的甲基化减少,这表明它是潜在的生物标志物. 这些表观遗传变化在抗抑郁药治疗后正常化.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 精神病学是一个精神病学.
背景情况:
- 表观遗传修饰,特别是涉及来自大脑的神经营养因子 (BDNF),与抑郁症有关.
- 对青少年抑郁症表观遗传变化的研究是有限的,阻碍了对其病理生理学的理解.
研究的目的:
- 研究患有抑郁症的青少年女孩BDNF表达和DNA甲基化的变化.
- 探索这些表观遗传标记物作为这种人口群中的抑郁症生物标记物的潜力.
主要方法:
- 评估了血清BDNF和proBDNF水平,BDNF基因外形IV促进物甲基化和30名患有抑郁症的青少年女孩和30名对照者的全球DNA甲基化.
- 对患者组的抗抑郁药治疗前后进行了测量.
主要成果:
- 与对照组相比,在抑郁的青少年中发现了显著较低的BDNF外因子IV促进物甲基化,与抑郁症严重程度有负相关性.
- 这种甲基化差异使得这些组具有37%的灵敏度和90%的特异性.
- 在全球DNA甲基化或血清BDNF/proBDNF水平上没有发现显著差异.
- 在抗抑郁药治疗后,甲基化差异消失了.
结论:
- 在BDNF外因子IV促进体中甲基化降低可能作为青少年女孩抑郁症的生物标志物.
- 在BDNF基因促进体的表观遗传变化与抑郁状态有关,并且在治疗后可逆.
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