瓦尔/梅特BDNF作为一种遗传风险,导致出院后自杀风险的虚假安全感
K A Rufino1, P Goli2, M A Patriquin3
1The Menninger Clinic, Houston, TX, USA; Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, USA; Department of Social Sciences, The University of Houston Downtown, Houston, TX, USA.
Journal of affective disorders
|March 6, 2024
概括
患有BDNF Met变异的患者在出院后表现出更快的自杀想法恢复,矛盾地增加了他们的自杀风险. 这一遗传发现可能解释了大脑衍生神经营养因子 (BDNF) 对自杀的研究中的不一致性.
科学领域:
- 精神病学是一个精神病学.
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
背景情况:
- 精神病后出院是自杀风险的关键时期.
- 预测高风险个体有助于有针对性的患者护理和资源配置.
- 在住院治疗期间自杀念头的更快改善与出院后更高的自杀率相关.
研究的目的:
- 调查基因因素背后的矛盾的关系,快速自杀思想的改善和自杀后的自杀风险增加.
- 检查这种现象中血清素转运体变体 (5-HTTLPR) 和来自大脑的神经营养因子 (BDNF) 基因变体 (Val66Met) 的作用.
主要方法:
- 研究了710名精神病医院住院患者中自杀念头恢复的倾斜率.
- 分析了两个遗传变异:5-HTTLPR和BDNF Val66Met.
- 在不同基因载体组之间比较自杀念头改善率.
主要成果:
- 与Val/Val基因型相比,患有BDNF Met变异的住院患者在自杀念头得分上表现出更快的改善.
- 在5-HTTLPR变体和自杀念头恢复率之间没有发现显著的关联.
- BDNF Met变体与更快的恢复有关,这是以前与更高的退院后自杀风险相关的一个因素.
结论:
- 具有悖论的,携带BDNF Met变异与更快的住院患者自杀想法改善有关,这预测了更高的出院后自杀风险.
- 这一发现可能有助于协调文献中关于BDNF在自杀思想和企图中的作用的相互矛盾的结果.
- 由于当前研究群体的遗传同质性,需要在多样化的样本中进行复制.
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