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Stability of Cortical Thinning in Persons at Increased Familial Risk for Major Depressive Disorder Across 8 Years.


ABSTRACT: BACKGROUND:A biological marker of vulnerability should precede onset of illness and be independent of disease course. We previously reported that cortical thinning may serve as a potential biomarker for risk for familial depression. We now test stability of the cortical thinning across 8 years, and whether thinning mediates associations between familial risk and depressive traits. METHOD:Participants were from a 3-generation family study of depression, where 2nd and 3rd generation offspring were characterized as being at high- or low-risk for depression based on the presence/absence of major depression in the 1st generation. The analysis includes 82 offspring with anatomical MRI scans across two assessment waves, 7.8 (S.D.1.3, range: 5.2-10.9) years apart. RESULTS:High-risk offspring had thinner bilateral superior and middle frontal gyri, and left inferior parietal lobule, at both time-points. High intra-subject correlation (0.60

SUBMITTER: Hao X 

PROVIDER: S-EPMC5659365 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Stability of Cortical Thinning in Persons at Increased Familial Risk for Major Depressive Disorder Across 8 Years.

Hao Xuejun X   Talati Ardesheer A   Shankman Stewart A SA   Liu Jun J   Kaiser Jurgen J   Tenke Craig E CE   Warner Virginia V   Semanek David D   Wickramaratne Priya J PJ   Weissman Myrna M MM   Posner Jonathan J  

Biological psychiatry. Cognitive neuroscience and neuroimaging 20171001 7


<h4>Background</h4>A biological marker of vulnerability should precede onset of illness and be independent of disease course. We previously reported that cortical thinning may serve as a potential biomarker for risk for familial depression. We now test stability of the cortical thinning across 8 years, and whether thinning mediates associations between familial risk and depressive traits.<h4>Method</h4>Participants were from a 3-generation family study of depression, where 2nd and 3rd generation  ...[more]

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