Abstract
Body composition is often altered in psychiatric disorders. Using genome-wide common genetic variation data, we calculate sex-specific genetic correlations amongst body fat %, fat mass, fat-free mass, physical activity, glycemic traits and 17 psychiatric traits (up to N = 217,568). Two patterns emerge: (1) anorexia nervosa, schizophrenia, obsessive-compulsive disorder, and education years are negatively genetically correlated with body fat % and fat-free mass, whereas (2) attention-deficit/hyperactivity disorder (ADHD), alcohol dependence, insomnia, and heavy smoking are positively correlated. Anorexia nervosa shows a stronger genetic correlation with body fat % in females, whereas education years is more strongly correlated with fat mass in males. Education years and ADHD show genetic overlap with childhood obesity. Mendelian randomization identifies schizophrenia, anorexia nervosa, and higher education as causal for decreased fat mass, with higher body fat % possibly being a causal risk factor for ADHD and heavy smoking. These results suggest new possibilities for targeted preventive strategies.
| Original language | English |
|---|---|
| Pages (from-to) | 5765 |
| Number of pages | 12 |
| Journal | Nature Communications |
| Volume | 10 |
| Issue number | 1 |
| Early online date | 18 Dec 2019 |
| DOIs | |
| Publication status | Published - 18 Dec 2019 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Age Factors
- Blood Glucose/genetics
- Body Composition/genetics
- Comorbidity
- Educational Status
- Female
- Genetic Variation
- Genome-Wide Association Study
- Humans
- Male
- Mental Disorders/epidemiology
- Middle Aged
- Multifactorial Inheritance/genetics
- Overweight/epidemiology
- Phenotype
- Physical Fitness
- Risk Factors
- Sex Factors
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