Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/76094
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dc.contributor.authorCohen-Woods, S.en
dc.contributor.authorCraig, I.en
dc.contributor.authorMcGuffin, P.en
dc.date.issued2013en
dc.identifier.citationPsychological Medicine, 2013; 43(4):673-687en
dc.identifier.issn1469-8978en
dc.identifier.issn1469-8978en
dc.identifier.urihttp://hdl.handle.net/2440/76094-
dc.description.abstractBACKGROUND: It has been well established that both genes and non-shared environment contribute substantially to the underlying aetiology of major depressive disorder (MDD). A comprehensive overview of genetic research in MDD is presented. Method Papers were retrieved from PubMed up to December 2011, using many keywords including: depression, major depressive disorder, genetics, rare variants, gene-environment, whole genome, epigenetics, and specific candidate genes and variants. These were combined in a variety of permutations. RESULTS: Linkage studies have yielded some promising chromosomal regions in MDD. However, there is a continued lack of consistency in association studies, in both candidate gene and genome-wide association studies (GWAS). Numerous factors may account for variable results including the use of different diagnostic approaches, small samples in early studies, population stratification, epigenetic phenomena, copy number variation (CNV), rare variation, and phenotypic and allelic heterogeneity. The conflicting results are also probably, in part, a consequence of environmental factors not being considered or controlled for. CONCLUSIONS: Each research group has to identify what issues their sample may best address. We suggest that, where possible, more emphasis should be placed on the environment in molecular behavioural genetics to identify individuals at environmental high risk in addition to genetic high risk. Sequencing should be used to identify rare and alternative variation that may act as a risk factor, and a systems biology approach including gene-gene interactions and pathway analyses would be advantageous. GWAS may require even larger samples with reliably defined (sub)phenotypes.en
dc.description.statementofresponsibilityS. Cohen-Woods, I. W. Craig and P. McGuffinen
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.rightsCopyright © Cambridge University Press 2012en
dc.subjectDepression; epigenetics; gene–environment; genetics; GWASen
dc.titleThe current state of play on the molecular genetics of depressionen
dc.typeJournal articleen
dc.identifier.rmid0020124293en
dc.identifier.doi10.1017/S0033291712001286en
dc.identifier.pubid21892-
pubs.library.collectionPsychiatry publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidCohen-Woods, S. [0000-0003-2199-6129]en
Appears in Collections:Psychiatry publications

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