COMT Val158Met多态性对前额TDCS对攻击性影响的影响
Carmen Weidler1, Lena Hofhansel2,3, Christina Regenbogen2
1Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen University, Aachen, Germany. cweidler@ukaachen.de.
Scientific reports
|February 10, 2024
概括
超直流刺激 (tDCS) 根据COMT基因Val158Met多态性不同影响侵略性. 在tDCS.tDCS后,甲基基因组同异构体显示出减少的攻击性,而val基因基因携带者显示出增加的攻击性.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 心理学 心理学 心理学
背景情况:
- 脊侧前额叶皮层 (DLPFC) 的阳极跨直流刺激 (tDCS) 可以调节认知控制和攻击性.
- 甲基转移酶 (COMT) Val158Met多态 (rs4680) 影响前额叶多巴胺,并与侵略性和tDCS反应变异性有关.
研究的目的:
- 为了研究COMT Val158Met多态 (rs4680) 对攻击水平的影响,随着道tDCS准正确的DLPFC.
- 为了确定遗传变异是否影响个人对tDCS的反应在侵略的背景下.
主要方法:
- 这是一项双盲,模拟控制的研究,涉及89名健康男性执行泰勒侵略范式.
- 参与者在接受fMRI时,在右侧的DLPFC上接受了活跃的阳极tDCS (1.5mA,20分钟) 或假的tDCS.
- 参与者对COMT Val158Met多态 (rs4680) 进行了基因定型,并被分类为val-allele载体 (val+) 或met-allele同胞体 (val-).
主要成果:
- 在活跃的tDCS (p < 0.001) 后,甲基基素同位素 (val-) 呈现出显著下降的侵略性 (p < 0.001).
- 与假装 (p < 0.001) 相比,在活性tDCS后,val-allele载体 (val+) 显示出明显增加的侵略性.
- 没有发现tDCS或rs4680基因型对大脑激活的显著影响.
结论:
- COMT Val158Met多态性显著缓解了阳极DLPFC tDCS对侵略行为的影响,导致不同基因组的结果相反.
- 这一发现凸显了遗传因素在预测tDCS疗效方面的重要性.
- 了解这些遗传影响对于开发个性化和更有效的tDCS治疗策略至关重要.
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