Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
21277635
TITLE
Glutamate cysteine ligase (GCL) and self reported depression: an association study from the HUNT.
ABSTRACT
BACKGROUND NlmCategory: BACKGROUND
There is increasing evidence suggesting oxidative stress may play a role in the aetiology of depression. Glutathione is the brain's predominant free radical scavenger, and associated polymorphisms of the glutamate cysteine ligase (GCL) gene have been reported for related psychiatric disorders. The aim of the study was to investigate candidate polymorphisms of GCL validated in schizophrenia and their association with current state depression, as measured by the Hospital Anxiety and Depression Scale (HADS).
METHODS NlmCategory: METHODS
Polymorphisms were genotyped on 983 cases and 967 controls selected from a population sample of adults participating in the Nord-Trøndelag Health Study. Cases were the top scoring individuals (98.5th percentile) on the HADS depression subscale while the controls were randomly selected from below this cut-off. The polymorphisms comprised three SNPs from GCLM, the gene encoding the GCL modifier and 9 SNPs plus a trinucleotide repeat (TNTR) from intron 1 and the 5'UTR of GCLC, the gene encoding the GCL catalytic subunit. Using the linkage disequilibrium between the GCLC markers we also tested whether SNPs could represent the variation of the TNTR.
RESULTS NlmCategory: RESULTS
The candidate polymorphisms showed no evidence for association with depression. The C allele of SNP rs9474592 is coupled with the 9 GAG repeats allele of the TNTR, r²=0.81. None of the other SNPs either individually or as two or three-SNP haplotypes was associated with the TNTR alleles.
LIMITATIONS NlmCategory: CONCLUSIONS
Depression was self-reported and measured at one time point.
CONCLUSIONS NlmCategory: CONCLUSIONS
This study provides no evidence to suggest that polymorphisms of GCL are associated with self-reported depression.
Copyright © 2011 Elsevier B.V. All rights reserved.
DATE PUBLISHED
2011 Jun
HISTORY
PUBSTATUS PUBSTATUSDATE
received 2010/09/06
revised 2010/12/21
accepted 2010/12/21
aheadofprint 2011/01/31
entrez 2011/02/01 06:00
pubmed 2011/02/01 06:00
medline 2011/09/20 06:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Berk M Berk Michael M School of Medicine, Deakin University, Geelong, Australia. mikebe@barwonhealth.org.au
Johansson S Johansson Stefan S
Wray NR Wray Naomi R NR
Williams L Williams Lana L
Olsson C Olsson Craig C
Haavik J Haavik Jan J
Bjerkeset O Bjerkeset Ottar O
INVESTIGATORS
JOURNAL
VOLUME: 131
ISSUE: 1-3
TITLE: Journal of affective disorders
ISOABBREVIATION: J Affect Disord
YEAR: 2011
MONTH: Jun
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Internet
ISSN: 1573-2517
ISSNTYPE: Electronic
MEDLINE JOURNAL
MEDLINETA: J Affect Disord
COUNTRY: Netherlands
ISSNLINKING: 0165-0327
NLMUNIQUEID: 7906073
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, Non-U.S. Gov't
COMMENTS AND CORRECTIONS
GRANTS
GENERAL NOTE
KEYWORDS
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Alleles
Depression genetics
Female genetics
Genetic Association Studies genetics
Genotype genetics
Glutamate-Cysteine Ligase genetics
Humans genetics
Male genetics
Norway genetics
Polymorphism, Single Nucleotide genetics
Psychiatric Status Rating Scales genetics
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
REGISTRYNUMBER NAMEOFSUBSTANCE
EC 6.3.2.2 Glutamate-Cysteine Ligase
OTHER ID's