The role of the dopamine transporter (DAT) in the development of PTSD in preschool children.

The role of the dopamine transporter (DAT) in the development of PTSD in preschool children.
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DOI:
10.1002/jts.20475
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发表时间:
2009-12
影响因子:
3.3
通讯作者:
Scheeringa, Michael
Scheeringa, Michael
中科院分区:
医学3区
文献类型:
--
作者:
Drury, Stacy S.;Theall, Katherine P.;Keats, Bronya J. B.;Scheeringa, Michael

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基于人群的关联研究支持创伤后应激障碍(PTSD)的遗传性。这项研究探讨了多巴胺转运蛋白(DAT)3‘非翻译区可变数目串联重复序列的遗传变异对卡特里娜飓风中学龄前儿童创伤后应激障碍发展的影响。根据《精神疾病诊断和统计手册》第四版(DSM-IV)的诊断,总症状,特别是D标准症状在携带9个等位基因的儿童中更有可能被发现。这项研究重复了先前在患有创伤后应激障碍的成年人中的发现。这一发现对标准D的觉醒症状增加的特异性表明,多巴胺和DAT等位基因可能对PTSD发展的多因素模型中的一条可遗传途径起作用。
Population-based association studies have supported the heritability of posttraumatic stress disorder (PTSD). This study explored the influence of genetic variation in the dopamine transporter (DAT) 3′ untranslated region variable number tandem repeat on the development of PTSD in preschool children exposed to Hurricane Katrina, diagnosed using a developmentally appropriate semistructured interview. A diagnosis according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), total symptoms, and specifically Criterion D symptoms were significantly more likely to be found in children with the 9 allele. This study replicates a previous finding in adults with PTSD. The specificity of this finding to the increased arousal symptoms of Criterion D suggests that dopamine and the DAT allele may contribute to one heritable path in a multifinality model of the development of PTSD.
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