产后和非产后抑郁症:基于人口的匹配病例控制研究,比较严重精神障碍的多基因风险得分
Trine Munk-Olsen1,2,3, Arianna Di Florio4, Kathrine B Madsen1,2
1NCRR-The National Centre for Register-based Research, Aarhus University, Aarhus, Denmark.
Translational psychiatry
|November 12, 2023
概括
遗传风险评分没有显示出产后抑郁症 (PPD) 和严重抑郁症 (MDD) 之间的明显差异. 这表明PPD和MDD可能不会在遗传上有区别,即使考虑到生殖行为.
科学领域:
- 精神病学是一个精神病学.
- 遗传学 是一个遗传学.
- 流行病学 流行病学
背景情况:
- 区分产后抑郁症 (PPD) 与非产后发作的大型抑郁症 (MDD) 是一个挑战,特别是在它们的遗传基础上.
- 之前的研究还没有明确确定PPD和MDD是否代表了基因上不同的疾病.
研究的目的:
- 通过使用多基因风险评分 (PGSs) 调查PPD和MDD之间的遗传差异.
- 为了确定PGS对于主要精神障碍在PPD妇女和MDD妇女之间是否有差异.
主要方法:
- 一项嵌套病例对照研究利用了iPSYCH2015的样本,包括1981年至1997年间出生的50057名丹麦妇女.
- 鉴定了333名首次出现PPD的女性,并将其与993名首次出现MDD的女性和999名女性人口对照进行了匹配.
- 使用个人遗传数据和精神病基因组学联盟元分析总结统计数据计算PGS,采用条件后勤回归来分析几率比率 (ORs),同时考虑生殖行为.
主要成果:
- 严重精神障碍的更高的PGS与PPD和MDD的OR增加有关.
- 对于MDD和注意力缺陷/多动症障碍的PGS在PPD病例中略高,但在统计上并非高于MDD病例 (分别为1.12和1.11的OR).
- 根据双相情感障碍,精神分裂症或自闭症谱系障碍的PGS,在PPD和MDD之间没有观察到OR的统计学上显著差异.
结论:
- 根据PGS数据,没有明确的证据表明,在产后期内或外经历抑郁症的妇女中,有明显的遗传特征.
- 这些发现表明,PPD和MDD可能具有共同的显著遗传风险因素,挑战了它们是完全独立的遗传疾病的概念.
- 需要进一步的研究来充分阐明PPD的遗传结构及其与其他抑郁症的关系.
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