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Allelic differences between Europeans and Chinese for CREB1 SNPs and their implications in gene expression regulation, hippocampal structure and function, and bipolar disorder susceptibility
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4377225
Author(s) Li, M.; Luo, X.-J.; Rietschel, M.; Lewis, C. M.; Mattheisen, M.; Müller-Myhsok, B.; Jamain, S.; Leboyer, M.; Landén, M.; Thompson, P. M.; Cichon, S.; Nöthen, M. M.; Schulze, T. G.; Sullivan, P. F.; Bergen, S. E.; Donohoe, G.; Morris, D. W.; Hargreaves, A.; Gill, M.; Corvin, A.; Hultman, C.; Toga, A. W.; Shi, L.; Lin, Q.; Shi, H.; Gan, L.; Meyer-Lindenberg, A.; Czamara, D.; Henry, C.; Etain, B.; Bis, J. C.; Ikram, M. A.; Fornage, M.; Debette, S.; Launer, L. J.; Seshadri, S.; Erk, S.; Walter, H.; Heinz, A.; Bellivier, F.; Stein, J. L.; Medland, S. E.; Arias Vasquez, A.; Hibar, D. P.; Franke, B.; Martin, N. G.; Wright, M. J.; MooDS Bipolar Consortium,; Swedish Bipolar Study Group,; Alzheimer's Disease Neuroimaging Initiative,; Enigma Consortium,; Charge Consortium,; Su, B.
Author(s) at UniBasel Cichon, Sven
Year 2014
Title Allelic differences between Europeans and Chinese for CREB1 SNPs and their implications in gene expression regulation, hippocampal structure and function, and bipolar disorder susceptibility
Journal Molecular Psychiatry
Volume 19
Number 4
Pages / Article-Number 452-61
Keywords Adult; Age Factors; Aged; Aged, 80 and over; Asian Continental Ancestry Group/genetics; Bipolar Disorder/*ethnology/*genetics; Case-Control Studies; Computational Biology; Cyclic AMP Response Element-Binding Protein/*genetics; European Continental Ancestry Group/genetics; Female; Gene Expression Regulation/*genetics; Gene Frequency/genetics; Genetic Association Studies; *Genetic Predisposition to Disease; Hippocampus/*pathology; Humans; Male; Middle Aged; Neuroimaging; Neuropsychological Tests; Phenotype; Polymorphism, Single Nucleotide/*genetics; RNA, Messenger/metabolism
Mesh terms Adult; Age Factors; Aged; Aged, 80 and over; Asian Continental Ancestry Group, genetics; Bipolar Disorder, genetics; Case-Control Studies; Computational Biology; Cyclic AMP Response Element-Binding Protein, genetics; European Continental Ancestry Group, genetics; Female; Gene Expression Regulation, genetics; Gene Frequency, genetics; Genetic Association Studies; Genetic Predisposition to Disease; Hippocampus, pathology; Humans; Male; Middle Aged; Neuroimaging; Neuropsychological Tests; Phenotype; Polymorphism, Single Nucleotide, genetics; RNA, Messenger, metabolism
Abstract Bipolar disorder (BD) is a polygenic disorder that shares substantial genetic risk factors with major depressive disorder (MDD). Genetic analyses have reported numerous BD susceptibility genes, while some variants, such as single-nucleotide polymorphisms (SNPs) in CACNA1C have been successfully replicated, many others have not and subsequently their effects on the intermediate phenotypes cannot be verified. Here, we studied the MDD-related gene CREB1 in a set of independent BD sample groups of European ancestry (a total of 64,888 subjects) and identified multiple SNPs significantly associated with BD (the most significant being SNP rs6785[A], P=6.32 x 10(-5), odds ratio (OR)=1.090). Risk SNPs were then subjected to further analyses in healthy Europeans for intermediate phenotypes of BD, including hippocampal volume, hippocampal function and cognitive performance. Our results showed that the risk SNPs were significantly associated with hippocampal volume and hippocampal function, with the risk alleles showing a decreased hippocampal volume and diminished activation of the left hippocampus, adding further evidence for their involvement in BD susceptibility. We also found the risk SNPs were strongly associated with CREB1 expression in lymphoblastoid cells (P<0.005) and the prefrontal cortex (P<1.0 x 10(-6)). Remarkably, population genetic analysis indicated that CREB1 displayed striking differences in allele frequencies between continental populations, and the risk alleles were completely absent in East Asian populations. We demonstrated that the regional prevalence of the CREB1 risk alleles in Europeans is likely caused by genetic hitchhiking due to natural selection acting on a nearby gene. Our results suggest that differential population histories due to natural selection on regional populations may lead to genetic heterogeneity of susceptibility to complex diseases, such as BD, and explain inconsistencies in detecting the genetic markers of these diseases among different ethnic populations.
Publisher Nature Publishing Group
ISSN/ISBN 1359-4184 ; 1476-5578
URL http://www.ncbi.nlm.nih.gov/pmc/articles/pmc3937299/
edoc-URL https://edoc.unibas.ch/61567/
Full Text on edoc No
Digital Object Identifier DOI 10.1038/mp.2013.37
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/23568192
ISI-Number WOS:000333409100011
Document type (ISI) Journal Article
 
   

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