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JAMA子刊:厉害了,外周白细胞计数居然能预测抑郁风险!

2022-01-06 brainnew神内神外 网络

尽管抑郁症是一种常见的精神疾病,但对其潜在的生物学基础仍然知之甚少。将抑郁症多基因评分与临床实验室测试结果配对,可以揭示参与抑郁症病因和抑郁症导致的生理变化的生物过程。

抑郁症是一种常见的精神疾病,估计影响到全球2.64亿人。抑郁症的诊断标准包括对自我报告的精神症状的临床评估,如情绪低落、易怒、失眠或自杀的想法。除了精神方面的影响外,抑郁症还与心血管疾病、自身免疫性疾病和糖尿病的风险增加有关。

 

尽管抑郁症是一种常见的精神疾病,但对其潜在的生物学基础仍然知之甚少。将抑郁症多基因评分与临床实验室测试结果配对,可以揭示参与抑郁症病因和抑郁症导致的生理变化的生物过程。

为了描述抑郁症多基因评分与炎症生物标志物(即白细胞计数)之间的关系,来自西奈山伊坎医学院、麻省总院及剑桥等高校和机构的专家开展了遗传关联研究,结果发表在JAMA Psychiatry杂志上。

研究人员使用4个医疗系统的382452名患者的电子健康记录数据。分析在每个医疗系统中单独进行,并在所有系统中进行元分析。复制分析在其他3个PsycheMERGE站点进行:西奈山伊坎医学院、麻省总医院布里格姆医院和百万退伍军人计划。

在4个PsycheMERGE站点中,共有382452名欧洲血统的参与者(18.7%为女性;中位年龄,57.9岁)和12383名非洲血统的参与者(61.1%为女性;中位年龄,39.0)。关联扫描显示,抑郁症多基因评分和白细胞计数之间存在强有力的关联(β,0.03;SE,0.004),这在4个医疗系统的荟萃分析中得到复制(β,0.03;SE,0.002)。

调解分析表明存在双向关联,白细胞计数占抑郁症多基因评分与抑郁症诊断关联的2.5%(95% CI,2.2%-20.8%),抑郁症诊断占抑郁症多基因评分与白细胞计数关联的9.8%(95% CI,8.4%-11.1%)。孟德尔随机化为白细胞计数增加和抑郁症风险之间的关联提供了额外的支持,但作为暴露的抑郁症模型没有显示出对白细胞计数有影响的证据。

这项遗传关联研究发现,抑郁症多基因分数的增加与白细胞计数的增加有关,并表明这种关联可能是双向的。这些发现强调了免疫系统在抑郁症病因中的潜在重要性,并可能促使未来开发抑郁症的临床生物标志物和针对性的治疗方案。

参考文献:

Use of the PsycheMERGE Network to Investigate the Association Between Depression Polygenic Scores and White Blood Cell Count. JAMA Psychiatry. 2021;78(12):1365–1374. doi:10.1001/jamapsychiatry.2021.2959

 

编辑:Arzt

仅供学习交流!

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    2022-01-06 ms6000000656440728

    学习了!

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    2022-01-06 屋顶瞄爱赏月

    学习了

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