机构:[1]Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, No. 295 Xichang RD, Kunming 650032, Kunming, Yunnan, China内科科室精神科昆明医科大学附属第一医院[2]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical Unversity, Kunming, Yunnan, China内科科室风湿免疫科昆明医科大学附属第一医院[3]Imaging Center, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China医技科室医学影像中心CT室昆明医科大学附属第一医院
Considerable evidence suggests that the tryptophan hydroxylase-2 (TPH2) gene is associated with the pathophysiology of major depressive disorder (MDD). In the present study, we investigated alterations of white matter (WM) integrity and the impact of TPH2 polymorphism on WM in a sample of 118 first-episode, medication-naive, MDD patients and 118 well-matched healthy controls. Whole brain analyses of fractional anisotropy (FA) were performed using tract-based spatial statistics (TBSS). The results showed that the MDD group had significantly reduced FA values for the genu and body of the corpus callosum (CC) and the bilateral anterior corona radiate (ACR). In the MDD patient group, the GG homozygote subgroup exhibited a widespread reduction of FA (uncorrected) and significantly reduced FA in the left retrolenticular portion of the internal capsule and left superior longitudinal fasciculus (SLF) compared with those of the T carriers (GT/TT) (FWE corrected). No significant correlation was found between the FA values in any brain region and the patients' clinical variables. Our findings demonstrate the presence of abnormal white matter integrity in untreated patients with first-episode depression. TPH2-rs4570625 polymorphisms may be involved in the pathological mechanism of WM micro-architecture in patients.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81560233, 81660237, 81760296, 81460256]; Founding of Yunnan Provincial Health Science and Technology Plan [2016NS026, 2016NS028]; Yunnan Applied Basic Research Projects-Union Foundation [2017FE467(-167)]; Innovative Research Team of Kunming Medical University [CXTD201705]; Middle and Young Aged Academic and Technology Leaders Reserve Foundation of Yunnan Province [2015HB071, 2018HB021]
第一作者机构:[1]Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, No. 295 Xichang RD, Kunming 650032, Kunming, Yunnan, China
共同第一作者:
通讯作者:
推荐引用方式(GB/T 7714):
Ping Liangliang,Xu Jian,Zhou Cong,et al.Tryptophan hydroxylase-2 polymorphism is associated with white matter integrity in first-episode, medication-naive major depressive disorder patients[J].PSYCHIATRY RESEARCH-NEUROIMAGING.2019,286:4-10.doi:10.1016/j.pscychresns.2019.02.002.
APA:
Ping Liangliang,Xu Jian,Zhou Cong,Lu Jin,Lu Yi...&Cheng Yuqi.(2019).Tryptophan hydroxylase-2 polymorphism is associated with white matter integrity in first-episode, medication-naive major depressive disorder patients.PSYCHIATRY RESEARCH-NEUROIMAGING,286,
MLA:
Ping Liangliang,et al."Tryptophan hydroxylase-2 polymorphism is associated with white matter integrity in first-episode, medication-naive major depressive disorder patients".PSYCHIATRY RESEARCH-NEUROIMAGING 286.(2019):4-10