PMID- 25598522 OWN - NLM STAT- MEDLINE DCOM- 20151231 LR - 20200613 IS - 1097-0193 (Electronic) IS - 1065-9471 (Print) IS - 1065-9471 (Linking) VI - 36 IP - 5 DP - 2015 May TI - Genetic contribution of catechol-O-methyltransferase in hippocampal structural and functional changes of female migraine sufferers. PG - 1782-95 LID - 10.1002/hbm.22737 [doi] AB - Physiological and emotional stressors are associated with or provoke each migraine attack and cause structural and functional changes in the central nervous system. The hippocampus, a limbic structure important in anxiety-related behavior, is vulnerable to long-term stress. Given that catechol-O-methyltransferase (COMT) is widely distributed in the hippocampus and its genetic variation is thought to contribute to the interindividual variability in pain perception and anxiety regulation, whether or not migraine and COMT val(158) met genotype have an interactive effect in the key brain area related to maladaptive stress, the hippocampus, is still poorly understood. Using T1-weighted and resting functional MRI, we evaluated the effect of COMT genetic variations on migraine and possible interactions between COMT and the disease in brain structure and function in 135 females with migraine without aura (MWoA) and 111 matched health controls (HC). Optimized voxel-based morphometry (VBM) and functional connectivity (FC) analyses were applied. From the whole brain VBM analysis, we found a significant disease x genotype interaction in the hippocampus, which overlapped with disease-related increase of gray matter (GM) in val homozygote migraineurs. In our results, increased GM in the hippocampus was only found in val homozygote MWoA compared to val homozygote HC. Moreover, FC between the hippocampus and the medial prefrontal cortex was significantly decreased in val homozygotes, and it was negatively correlated with self-rating anxiety scale values.Our results indicated that brain structure and function of the hippocampus are differentially affected by migraine in val homozygotes compared with met carriers. CI - (c) 2015 Wiley Periodicals, Inc. FAU - Liu, Jixin AU - Liu J AD - School of Life Science and Technology, Xidian University, Xi'an, People's Republic of China. FAU - Lan, Lei AU - Lan L FAU - Mu, Junya AU - Mu J FAU - Zhao, Ling AU - Zhao L FAU - Yuan, Kai AU - Yuan K FAU - Zhang, Yi AU - Zhang Y FAU - Huang, Liyu AU - Huang L FAU - Liang, Fanrong AU - Liang F FAU - Tian, Jie AU - Tian J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150119 PL - United States TA - Hum Brain Mapp JT - Human brain mapping JID - 9419065 RN - EC 2.1.1.6 (COMT protein, human) RN - EC 2.1.1.6 (Catechol O-Methyltransferase) SB - IM MH - Anxiety/pathology/physiopathology MH - Brain Mapping MH - Catechol O-Methyltransferase/*genetics MH - Female MH - Genotype MH - Genotyping Techniques MH - Gray Matter/pathology/physiopathology MH - Heterozygote MH - Hippocampus/*pathology/*physiopathology MH - Humans MH - Magnetic Resonance Imaging MH - Migraine without Aura/*pathology/*physiopathology/psychology MH - Neural Pathways/pathology/physiopathology MH - Psychiatric Status Rating Scales MH - Psychophysics MH - Rest MH - Young Adult PMC - PMC6869255 OTO - NOTNLM OT - catechol-O-methyltransferase OT - functional connectivity OT - hippocampus OT - migraine OT - structural change EDAT- 2015/01/20 06:00 MHDA- 2016/01/01 06:00 PMCR- 2015/01/19 CRDT- 2015/01/20 06:00 PHST- 2014/11/13 00:00 [received] PHST- 2014/12/16 00:00 [revised] PHST- 2015/01/02 00:00 [accepted] PHST- 2015/01/20 06:00 [entrez] PHST- 2015/01/20 06:00 [pubmed] PHST- 2016/01/01 06:00 [medline] PHST- 2015/01/19 00:00 [pmc-release] AID - HBM22737 [pii] AID - 10.1002/hbm.22737 [doi] PST - ppublish SO - Hum Brain Mapp. 2015 May;36(5):1782-95. doi: 10.1002/hbm.22737. Epub 2015 Jan 19.