Sex-Stratified Genome Analysis Maps Depression Variants
October 23, 2025
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3 min
A comprehensive genome-wide association study reveals sex-specific genetic differences in major depressive disorder (MDD), identifying 16 variants in females and 8 in males from a dataset of over 130,000 individuals. Significant findings include a novel male variant on the X chromosome and higher heritability in females, suggesting a stronger genetic basis for depression. The study indicates a shared genetic foundation between sexes but emphasizes the need for precision medicine tailored to sex-specific genetic profiles. Dr. Brittany L. Mitchell of Queensland Institute highlights potential therapeutic implications.
1. Identified sex-specific genetic differences in MDD. 2. 16 variants in females, 8 in males. 3. Male variant rs5971319 linked to IL1RAPL1. 4. Higher MDD heritability in females. 5. Shared genetic regions included NEGR1. 6. Broader polygenicity found in women. 7. Study limitations include unequal sample sizes. 8. Sex-specific insights may inform precision medicine.
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