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Genetic Contributio...
Genetic Contribution to the Heterogeneity of Major Depressive Disorder : Evidence From a Sibling-Based Design Using Swedish National Registers
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- Nguyen, Thuy-Dung (författare)
- Karolinska Institutet
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- Kowalec, Kaarina (författare)
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; College of Pharmacy, University of Manitoba, Winnipeg, Canada
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- Pasman, Joëlle (författare)
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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- Larsson, Henrik, 1975- (författare)
- Örebro universitet,Institutionen för medicinska vetenskaper,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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- Lichtenstein, Paul (författare)
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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- Dalman, Christina (författare)
- Karolinska Institutet
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- Sullivan, Patrick F. (författare)
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Departments of Genetics and Psychiatry, University of North Carolina, Chapel Hill, USA
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- Kuja-Halkola, Ralf (författare)
- Karolinska Institutet
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- Lu, Yi (författare)
- Karolinska Institutet
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(creator_code:org_t)
- HighWire Press, 2023
- 2023
- Engelska.
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Ingår i: American Journal of Psychiatry. - : HighWire Press. - 0002-953X .- 1535-7228. ; 180:10, s. 714-722
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
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- OBJECTIVE: Major depressive disorder (MDD) is highly heterogeneous. Standard typology partly captures the disorder's symptomatic heterogeneity, although whether it adequately captures etiological heterogeneity remains elusive. The aim of this study was to investigate the genetic characterization of MDD heterogeneity.METHODS: Using Swedish patient register data on 1.5 million individuals, the authors identified 46,255 individuals with specialist-diagnosed MDD. Eighteen subgroups were identified based on nine comparison groups defined by clinical and psychosocial features, including severity, recurrence, comorbidities, suicidality, impairment, disability, care unit, and age at diagnosis. A sibling-based design and classic quantitative genetic models were applied to estimate heritability of MDD subgroups and genetic correlations between subgroups.RESULTS: Estimates of heritability ranged from 30.5% to 58.3% across subgroups. The disabled and youth-onset subgroups showed significantly higher heritability (55.1%-58.3%) than the overall MDD sample (45.3%, 95% CI=43.0-47.5), and the subgroups with single-episode MDD and without psychiatric comorbidity showed significantly lower estimates (30.5%-34.4%). Estimates of genetic correlations between the subgroups within comparison groups ranged from 0.33 to 0.90. Seven of nine genetic correlations were significantly smaller than 1, suggesting differences in underlying genetic architecture. These results were largely consistent with previous work using genomic data.CONCLUSIONS: The findings of differential heritability and partially distinct genetic components in subgroups provide important insights into the genetic heterogeneity of MDD and a deeper etiological understanding of MDD clinical subgroups.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
Nyckelord
- Depressive Disorders
- Epidemiology
- Genetics / Genomics
- Heterogeneity
- Major Depressive Disorder
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Nguyen, Thuy-Dun ...
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Kowalec, Kaarina
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Pasman, Joëlle
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Larsson, Henrik, ...
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Lichtenstein, Pa ...
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Dalman, Christin ...
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Sullivan, Patric ...
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Kuja-Halkola, Ra ...
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Lu, Yi
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- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Psykiatri
- Artiklar i publikationen
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American Journal ...
- Av lärosätet
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Örebro universitet
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Karolinska Institutet