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- W2885057788 abstract "Family studies have shown an aggregation of suicidal behavior in families. Yet, molecular studies are needed to identify loci accounting for genetic heritability. We conducted a genome-wide association study and estimated single nucleotide polymorphisms (SNP) heritability for a suicide attempt. In a case-cohort study, national data on all individuals born in Denmark after 1981 and diagnosed with severe mental disorders prior to 2013 (n = 57,377) and individuals from the general population (n = 30,000) were obtained. After quality control, the sample consisted of 6024 cases with an incidence of suicide attempt and 44,240 controls with no record of a suicide attempt. Suggestive associations between SNPs, rs6880062 (p-value: 5.4 × 10−8) and rs6880461 (p-value: 9.5 × 10−8), and suicide attempt were identified when adjusting for socio-demographics. Adjusting for mental disorders, three significant associations, all on chromosome 20, were identified: rs4809706 (p-value: 2.8 × 10−8), rs4810824 (p-value: 3.5 × 10−8), and rs6019297 (p-value: 4.7 × 108). Sub-group analysis of cases with affective disorders revealed SNPs associated with suicide attempts when compared to the general population for gene PDE4B. All SNPs explained 4.6% [CI-95: 2.9–6.3%] of the variation in suicide attempt. Controlling for mental disorders reduced the heritability to 1.9% [CI-95: 0.3–3.5%]. Affective and autism spectrum disorders exhibited a SNP heritability of 5.6% [CI-95: 1.9–9.3%] and 9.6% [CI-95: 1.1–18.1%], respectively. Using the largest sample to date, we identified significant SNP associations with suicide attempts and support for a genetic transmission of suicide attempt, which might not solely be explained by mental disorders." @default.
- W2885057788 created "2018-08-22" @default.
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- W2885057788 date "2018-08-16" @default.
- W2885057788 modified "2023-10-17" @default.
- W2885057788 title "Genetics of suicide attempts in individuals with and without mental disorders: a population-based genome-wide association study" @default.
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- W2885057788 doi "https://doi.org/10.1038/s41380-018-0218-y" @default.
- W2885057788 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7515833" @default.