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Catechol-O-Methyltransferase Val158Met Polymorphism Modulates Gray Matter Volume and Functional Connectivity of the Default Mode Network
Tian, Tian1,2; Qin, Wen1,2; Liu, Bing3,4; Wang, Dawei1,2; Wang, Junping1,2; Jiang, Tianzi3,4,5,6; Yu, Chunshui1,2
Source PublicationPLOS ONE
2013-10-16
Volume8Issue:10
SubtypeArticle
AbstractThe effect of catechol-O-methyltransferase (COMT) Val158Met polymorphism on brain structure and function has been previously investigated separately and regionally; this prevents us from obtaining a full picture of the effect of this gene variant. Additionally, gender difference must not be overlooked because estrogen exerts an interfering effect on COMT activity. We examined 323 young healthy Chinese Han subjects and analyzed the gray matter volume (GMV) differences between Val/Val individuals and Met carriers in a voxel-wise manner throughout the whole brain. We were interested in genotype effects and genotype x gender interactions. We then extracted these brain regions with GMV differences as seeds to compute resting-state functional connectivity (rsFC) with the rest of the brain; we also tested the genotypic differences and gender interactions in the rsFCs. Val/Val individuals showed decreased GMV in the posterior cingulate cortex (PCC) compared with Met carriers; decreased GMV in the medial superior frontal gyrus (mSFG) was found only in male Val/Val subjects. The rsFC analysis revealed that both the PCC and mSFG were functionally correlated with brain regions of the default mode network (DMN). Both of these regions showed decreased rsFCs with different parts of the frontopolar cortex of the DMN in Val/Val individuals than Met carriers. Our findings suggest that the COMT Val158Met polymorphism modulates both the structure and functional connectivity within the DMN and that gender interactions should be considered in studies of the effect of this genetic variant, especially those involving prefrontal morphology.
WOS HeadingsScience & Technology
WOS KeywordCOMT VAL(158)MET POLYMORPHISM ; VAL(108/158) MET GENOTYPE ; HEALTHY-YOUNG ADULTS ; WORKING-MEMORY ; PREFRONTAL CORTEX ; GENE POLYMORPHISM ; COGNITIVE PERFORMANCE ; EXECUTIVE FUNCTION ; PERSONALITY-TRAIT ; DOWN-REGULATION
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000326019400160
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/3172
Collection脑网络组研究中心
Affiliation1.Tianjin Med Univ Gen Hosp, Dept Radiol, Tianjin, Peoples R China
2.Tianjin Med Univ Gen Hosp, Tianjin Key Lab Funct Imaging, Tianjin, Peoples R China
3.Chinese Acad Sci, Brainnetome Ctr, Inst Automat, Beijing, Peoples R China
4.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing, Peoples R China
5.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Key Lab NeuroInformat, Minist Educ, Chengdu 610054, Peoples R China
6.Univ Queensland, Queensland Brain Inst, Brisbane, Qld, Australia
Recommended Citation
GB/T 7714
Tian, Tian,Qin, Wen,Liu, Bing,et al. Catechol-O-Methyltransferase Val158Met Polymorphism Modulates Gray Matter Volume and Functional Connectivity of the Default Mode Network[J]. PLOS ONE,2013,8(10).
APA Tian, Tian.,Qin, Wen.,Liu, Bing.,Wang, Dawei.,Wang, Junping.,...&Yu, Chunshui.(2013).Catechol-O-Methyltransferase Val158Met Polymorphism Modulates Gray Matter Volume and Functional Connectivity of the Default Mode Network.PLOS ONE,8(10).
MLA Tian, Tian,et al."Catechol-O-Methyltransferase Val158Met Polymorphism Modulates Gray Matter Volume and Functional Connectivity of the Default Mode Network".PLOS ONE 8.10(2013).
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