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  • Title: Association between the oxytocin receptor gene polymorphism (rs53576) and bulimia nervosa.
    Author: Kim YR, Kim JH, Kim CH, Shin JG, Treasure J.
    Journal: Eur Eat Disord Rev; 2015 May; 23(3):171-8. PubMed ID: 25773927.
    Abstract:
    OBJECTIVE: Oxytocin circuits are implicated in the regulation of appetite and weight. Variants in the oxytocin receptor (OXTR) gene have been associated with bulimic behaviour. This study aimed to investigate the association between the OXTR gene and eating disorders. METHOD: We genotyped six single nucleotide polymorphisms, rs53576, rs237879, rs2228485, rs13316193, rs2254298 and rs1042778, located within the OXTR gene in Korean patients with eating disorders using the single-base extension method. We studied a total of 262 women, including 69 patients with anorexia nervosa, 90 patients with bulimia nervosa (BN), and 103 healthy women. RESULTS: We found a positive association between the G allele of OXTR rs53576 and BN. In the BN group, the G carriers showed a high score on the behavioural inhibition system. CONCLUSIONS: These findings suggest the involvement of the oxytocinergic system in the mechanism that underlies BN.
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