Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A genome-wide significant linkage for severe depression on chromosome 3
T2 - the depression network study
AU - Breen, Gerome
AU - Webb, Bradley Todd
AU - Butler, Amy W.
AU - van den Oord, Edwin J. C. G.
AU - Tozzi, Federica
AU - Craddock, Nick
AU - Gill, Mike
AU - Korszun, Ania
AU - Maier, Wolfgang
AU - Middleton, Lefkos
AU - Mors, Ole
AU - Owen, Michael J.
AU - Cohen-Woods, Sarah
AU - Perry, Julia
AU - Galwey, Nicholas W.
AU - Upmanyu, Ruchi
AU - Craig, Ian
AU - Lewis, Cathryn M.
AU - Ng, Mandy
AU - Brewster, Shyama
AU - Preisig, Martin
AU - Rietschel, Marcella
AU - Jones, Lisa
AU - Knight, Jo
AU - Rice, John
AU - Muglia, Pierandrea
AU - Farmer, Anne E.
AU - McGuffin, Peter
PY - 2011/8
Y1 - 2011/8
N2 - OBJECTIVE: The purpose of this study was to find loci for major depression via linkage analysis of a large sibling pair sample.METHOD: The authors conducted a genome-wide linkage analysis of 839 families consisting of 971 affected sibling pairs with severe recurrent major depression, comprising waves I and II of the Depression Network Study cohort. In addition to examining affected status, linkage analyses in the full data set were performed using diagnoses restricted by impairment severity, and association mapping of hits in a large case-control data set was attempted.RESULTS: The authors identified genome-wide significant linkage to chromosome 3p25-26 when the diagnoses were restricted by severity, which was a maximum LOD score of 4.0 centered at the linkage marker D3S1515. The linkage signal identified was genome-wide significant after correction for the multiple phenotypes tested, although subsequent association mapping of the region in a genome-wide association study of a U.K. depression sample did not provide significant results.CONCLUSIONS: The authors report a genome-wide significant locus for depression that implicates genes that are highly plausible for involvement in the etiology of recurrent depression. Despite the fact that association mapping in the region was negative, the linkage finding was replicated by another group who found genome-wide-significant linkage for depression in the same region. This suggests that 3p25-26 is a new locus for severe recurrent depression. This represents the first report of a genome-wide significant locus for depression that also has an independent genome-wide significant replication.
AB - OBJECTIVE: The purpose of this study was to find loci for major depression via linkage analysis of a large sibling pair sample.METHOD: The authors conducted a genome-wide linkage analysis of 839 families consisting of 971 affected sibling pairs with severe recurrent major depression, comprising waves I and II of the Depression Network Study cohort. In addition to examining affected status, linkage analyses in the full data set were performed using diagnoses restricted by impairment severity, and association mapping of hits in a large case-control data set was attempted.RESULTS: The authors identified genome-wide significant linkage to chromosome 3p25-26 when the diagnoses were restricted by severity, which was a maximum LOD score of 4.0 centered at the linkage marker D3S1515. The linkage signal identified was genome-wide significant after correction for the multiple phenotypes tested, although subsequent association mapping of the region in a genome-wide association study of a U.K. depression sample did not provide significant results.CONCLUSIONS: The authors report a genome-wide significant locus for depression that implicates genes that are highly plausible for involvement in the etiology of recurrent depression. Despite the fact that association mapping in the region was negative, the linkage finding was replicated by another group who found genome-wide-significant linkage for depression in the same region. This suggests that 3p25-26 is a new locus for severe recurrent depression. This represents the first report of a genome-wide significant locus for depression that also has an independent genome-wide significant replication.
KW - Adult
KW - Age of Onset
KW - Aged
KW - Alleles
KW - Chromosomes, Human, Pair 3
KW - Chromosomes, Human, Pair 7
KW - Depressive Disorder, Major
KW - Female
KW - Genetic Linkage
KW - Genetic Predisposition to Disease
KW - Genome-Wide Association Study
KW - Genotype
KW - Humans
KW - Lod Score
KW - Male
KW - Middle Aged
KW - Phenotype
KW - Polymorphism, Single Nucleotide
KW - Receptors, Metabotropic Glutamate
KW - Recurrence
KW - Risk
KW - Siblings
KW - Young Adult
U2 - 10.1176/appi.ajp.2011.10091342
DO - 10.1176/appi.ajp.2011.10091342
M3 - Journal article
C2 - 21572164
VL - 168
SP - 840
EP - 847
JO - American Journal of Psychiatry
JF - American Journal of Psychiatry
SN - 0002-953X
IS - 8
ER -