Serotonin transporter promoter region (5-HTTLPR) polymorphism predicts resting respiratory sinus arrhythmia.

Serotonin transporter promoter region (5-HTTLPR) polymorphism predicts resting respiratory sinus arrhythmia.
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DOI:
10.1111/j.1469-8986.2010.01154.x
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发表时间:
2011-07
期刊:
影响因子:
3.7
通讯作者:
McGeary JE
McGeary JE
中科院分区:
心理学3区
文献类型:
--
作者:
Ellis AJ;Beevers CG;Hixon JG;McGeary JE

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呼吸性窦性心律失常(RSA)常被概念化为一种与情绪调节能力有关的生理灵活性指标。虽然行为遗传学研究表明RSA是部分可遗传的,但分子遗传学研究相对较少。我们研究了5-羟色胺转运体启动子区(5-HTTLPR)多态是否与健康青年(N=71)静息RSA相关。短5-HTTLPR等位基因携带者的静息RSA显著低于长5-HTTLPR纯合子。在静息RSA中,基因型可以解释5%的变异。虽然确凿的结论取决于进一步的研究,但5-HTTLPR多态的短等位基因可能是RSA及其行为相关的个体差异的原因。
Respiratory sinus arrhythmia (RSA) is often conceptualized as an index of physiological flexibility that has been related to emotion regulatory capacity. Although behavioral genetics research indicates that RSA is partly heritable, relatively few molecular genetics studies have been conducted. We examined whether the serotonin transporter promoter region (5-HTTLPR) polymorphism was associated with resting RSA among healthy young adults (N = 71). Short 5-HTTLPR allele carriers had significantly lower resting RSA than long 5-HTTLPR homozygotes. Genotype explained 5% of the variance in resting RSA. Although firm conclusions depend on further study, the short allele of the 5-HTTLPR polymorphism may contribute to individual differences in RSA and its behavioral correlates.
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