Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-2-26
pubmed:abstractText
Previous studies have identified a putative gene locus for both schizophrenia and bipolar disorder in the chromosome 18q21 region. To identify candidate genes associated with these disorders we completed fine mapping analyses (using microsatellite markers) in 152 families from the Central Valley of Costa Rica (CVCR) (376 total subjects, 151 with a history of psychosis, 97 with a history of mania). Microsatellite analyses showed evidence of association at two contiguous markers, both located at the same genetic distance and spanning approximately 11 known genes. In a corollary gene expression study, one of these genes, malic enzyme 2 (ME2), showed levels of gene expression 5.6-fold lower in anterior cingulate tissue from post-mortem bipolar brains. Subsequent analysis of individual SNPs in strong linkage disequilibrium with the ME2 gene revealed one SNP and one haplotype associated with the phenotype of psychosis in the CVCR sample. ME2 interacts directly with the malate shuttle system, which has been shown to be altered in schizophrenia and bipolar disorder, and has roles in neuronal synthesis of glutamate and gamma-amino butyric acid. The present study suggests that genetic variation in or near the ME2 gene is associated with both psychotic and manic disorders, including schizophrenia and bipolar disorder.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0165-1781
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
150
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-11
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:17258816-Adult, pubmed-meshheading:17258816-Bipolar Disorder, pubmed-meshheading:17258816-Brain, pubmed-meshheading:17258816-Chromosome Mapping, pubmed-meshheading:17258816-Chromosomes, Human, Pair 18, pubmed-meshheading:17258816-Costa Rica, pubmed-meshheading:17258816-Depressive Disorder, Major, pubmed-meshheading:17258816-Female, pubmed-meshheading:17258816-Founder Effect, pubmed-meshheading:17258816-Genetic Predisposition to Disease, pubmed-meshheading:17258816-Genetic Variation, pubmed-meshheading:17258816-Genetics, Population, pubmed-meshheading:17258816-Genotype, pubmed-meshheading:17258816-Haplotypes, pubmed-meshheading:17258816-Humans, pubmed-meshheading:17258816-Linkage Disequilibrium, pubmed-meshheading:17258816-Malate Dehydrogenase, pubmed-meshheading:17258816-Male, pubmed-meshheading:17258816-Microsatellite Repeats, pubmed-meshheading:17258816-Middle Aged, pubmed-meshheading:17258816-Phenotype, pubmed-meshheading:17258816-Polymorphism, Single Nucleotide, pubmed-meshheading:17258816-Psychotic Disorders, pubmed-meshheading:17258816-Schizophrenia
pubmed:year
2007
pubmed:articleTitle
Malic enzyme 2 and susceptibility to psychosis and mania.
pubmed:affiliation
Psychiatric Genetics Research Center, Department of Psychiatry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural