Genetics of post-traumatic stress disorder: review and recommendations for genome-wide association studies.

Genetics of post-traumatic stress disorder: review and recommendations for genome-wide association studies.
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DOI:
10.1007/s11920-010-0126-6
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发表时间:
2010-08
影响因子:
6.7
通讯作者:
Koenen, Karestan C.
Koenen, Karestan C.
中科院分区:
医学2区
文献类型:
--
作者:
Cornelis, Marilyn C.;Nugent, Nicole R.;Amstadter, Ananda B.;Koenen, Karestan C.

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创伤后应激障碍(PTSD)是一种普遍存在的致残性焦虑症,构成了主要的医疗负担。尽管有证据支持创伤后应激障碍的遗传易感性,但确切的遗传基因座仍不清楚。在此,我们对创伤后应激障碍的遗传学研究现状和局限性进行综述。尽管近年来研究候选基因对创伤后应激障碍诊断和症状的影响的研究呈指数级增长,但大多数研究的特点是创伤后应激障碍的发生率相对较低,与方法上的显著差异有关的基因关联明显不一致。我们进一步讨论如何将目前遗传学领域的进展应用于创伤后应激障碍的研究,强调有必要采用有利于发现而不是假设检验的全基因组方法。全基因组关联研究提供了最好的机会来确定这种疾病的新的“真实”风险变异,这反过来又有可能告知我们对创伤后应激障碍病因的理解。
Post-traumatic stress disorder (PTSD) is a prevalent, disabling anxiety disorder that constitutes a major health care burden. Despite evidence supporting a genetic predisposition to PTSD, the precise genetic loci remain unclear. Herein we review the current state and limitations of genetic research on PTSD. Although recent years have seen an exponential increase in the number of studies examining the influence of candidate genes on PTSD diagnosis and symptomatology, most studies have been characterized by relatively low rates of PTSD, with apparent inconsistencies in gene associations linked to marked differences in methodology. We further discuss how current advances in the genetics field can be applied to studies of PTSD, emphasizing the need to adapt a genome-wide approach that facilitates discovery rather than hypothesis testing. Genome-wide association studies offer the best opportunity to identify novel “true” risk variants for the disorder that in turn has the potential to inform our understanding of PTSD etiology.
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