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  • Title: Risperidone associated weight, leptin, and anthropometric changes in children and adolescents with psychotic disorders in early treatment.
    Author: Maayan LA, Vakhrusheva J.
    Journal: Hum Psychopharmacol; 2010 Mar; 25(2):133-8. PubMed ID: 20196182.
    Abstract:
    OBJECTIVE: To document prospective weight and anthropometric changes in children and adolescents during the first 12 weeks of treatment with risperidone and evaluate metabolic outcomes including plasma leptin levels. METHOD: Eight patients with psychotic disorders (ages 11-17) who had started risperidone (mean: 1.80 mg/day; sd = 1.04) in the prior 4 weeks participated in this observational study. Fasting morning blood samples were obtained at baseline and week 8 to assess glucose, leptin, cortisol, insulin, and triglycerides. Measures of body mass index (BMI), weight, waist and hip circumference, blood pressure, and heart rate were obtained weekly. RESULTS: Participants increased in mean weight (4.16 kg; sd = 4.36; p = 0.03) and BMI (1.47 kg/m(2); sd = 1.53; p = 0.03) with five out of eight gaining at least 7% of baseline body weight. They had a 4.03 cm (sd = 3.82; p = 0.02) increase in waist circumference and a 5.17 cm (sd = 3.68; p = 0.01) increase in hip circumference. Leptin trended higher, but did not reach statistical significance. There were no significant changes in glucose, insulin, cortisol, blood pressure, or heart rate. CONCLUSION: Subjects experienced significant increases in weight, BMI, hip and waist circumference during the first 3 months of treatment. Better powered research with more advanced anthropometric assessment is warranted to further elucidate mechanisms of antipsychotic associated weight gain in youth.
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