No association between oxytocin or prolactin gene variants and childhood-onset mood disorders
Copyright policy )No association between oxytocin or prolactin gene variants and childhood-onset mood disorders
Oxytocin (OXT) and prolactin (PRL) are neuropeptide hormones that interact with the serotonin system and are involved in the stress response and social affiliation. In human studies, serum OXT and PRL levels have been associated with depression and related phenotypes. Our purpose was to determine if single nucleotide polymorphisms (SNPs) at the loci for OXT, PRL and their receptors, OXTR and PRLR, were associated with childhood-onset mood disorders (COMD).Using 678 families in a family-based association design, we genotyped 16 SNPs at OXT, PRL, OXTR and PRLR to test for association with COMD.No significant associations were found for SNPs in the OXTR, PRL, or PRLR genes. Two of three SNPs 3' of the OXT gene were associated with COMD (p≤0.02), significant after spectral decomposition, but were not significant after additionally correcting for the number of genes tested. Supplementary analyses of parent-of-origin and proband sex effects for OXT SNPs by Fisher's Exact test were not significant after Bonferroni correction.We have examined 16 OXT and PRL system gene variants, with no evidence of statistically significant association after correction for multiple tests.
- University of Szeged Hungary
- King's College London United Kingdom
- Kings College London, University of London United Kingdom
- University of Toronto Canada
- University of Pittsburgh United States
Male, 570, Adolescent, Mood Disorders, Receptors, Prolactin, 610, Oxytocin, Polymorphism, Single Nucleotide, Prolactin, Gene Frequency, Receptors, Oxytocin, Humans, Family, Female, Genetic Predisposition to Disease, Age of Onset, Child, Genetic Association Studies
Male, 570, Adolescent, Mood Disorders, Receptors, Prolactin, 610, Oxytocin, Polymorphism, Single Nucleotide, Prolactin, Gene Frequency, Receptors, Oxytocin, Humans, Family, Female, Genetic Predisposition to Disease, Age of Onset, Child, Genetic Association Studies
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