循环无细胞线粒体DNA和抑郁症状在低活跃成年吸烟者中
Teresa E Daniels1, Emily K Zitkovsky, Laura E Laumann
1From the Mood Disorders Research Program and Laboratory for Clinical and Translational Neuroscience (Daniels, Zitkovsky, Price, Tyrka), Butler Hospital; Department of Psychiatry and Human Behavior (Daniels, Kunicki, Kao, Parade, Price, Abrantes, Tyrka), and Initiative on Stress, Trauma, and Resilience (STAR), Department of Psychiatry and Human Behavior (Daniels, Parade, Tyrka), Warren Alpert Medical School of Brown University; Warren Alpert Medical School of Brown University (Zitkovsky), Providence, Rhode Island; Department of Psychological Sciences (Laumann), University of Connecticut, Storrs, Connecticut; Department of Psychiatry (Price), New York State Psychiatric Institute and Columbia University Irving Medical Center, New York, New York; Department of Molecular Biology, Cell Biology, and Biochemistry (Peterson, Dennery), Brown University; Department of Pediatrics (Dennery), Warren Alpert Medical School of Brown University, Providence; Bradley/Hasbro Children's Research Center (Parade), E.P. Bradley Hospital, East Providence, Rhode Island; and Behavioral Medicine and Addictions Research Department (Abrantes), Butler Hospital, Providence, Rhode Island.
线粒体DNA (mtDNA) 水平与吸烟和身体不活跃的成年人抑郁症症状有关. 较高的无细胞线粒体DNA (cf-mtDNA) 与抑郁和减少积极情绪相关.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 精神病学是一个精神病学.
背景情况:
- 线粒体功能障碍在精神疾病中越来越被认可.
- 循环无细胞线粒体DNA (cf-mtDNA) 水平显示了抑郁症的改变模式,尽管研究结果不一致.
- 这项研究调查了cf-mtDNA与低活动成年吸烟者抑郁症状的关系.
研究的目的:
- 检查特定人群中cf-mtDNA水平与抑郁症状之间的关联.
- 为了澄清cf-mtDNA与抑郁症之间的关系,考虑影响和行为激活等因素.
- 探索线粒体功能在抑郁症病理生理学的潜在作用.
主要方法:
- 招募了109名低活动成年人 (18-65岁) 患有抑郁症状.
- 自我报告措施评估了抑郁症的严重程度,积极/消极影响和行为激活.
- 血液样本分析了cf-mtDNA;相关性和线性回归检查了关系.
主要成果:
- cf-mtDNA水平与分类抑郁症有显著的关联 (CES-D>15).
- 较高的cf-mtDNA与较低的积极影响和减少的行为激活相关.
- 这些关联在调整年龄,性别和尼古丁依赖后仍然显著.
结论:
- 线粒体变化与低活性成年吸烟者的抑郁症状有关.
- 抑郁症中cf-mtDNA升高支持线粒体功能障碍的潜在作用.
- 研究结果表明cf-mtDNA可能是抑郁症严重程度和相关症状的生物标志物.
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