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  • Title: One year of growth hormone treatment in adults with Prader-Willi syndrome improves body composition: results from a randomized, placebo-controlled study.
    Author: Sode-Carlsen R, Farholt S, Rabben KF, Bollerslev J, Schreiner T, Jurik AG, Christiansen JS, Höybye C.
    Journal: J Clin Endocrinol Metab; 2010 Nov; 95(11):4943-50. PubMed ID: 20702523.
    Abstract:
    CONTEXT: Prader-Willi syndrome (PWS) is a multisymptomatic disease that shares many similarities with the GH deficiency syndrome, including altered body composition with more body fat than lean body mass. OBJECTIVE: Our objective was to investigate the effect of GH on body composition in adults with PWS. DESIGN AND PATIENTS: Forty-six adults with PWS were randomized to GH or placebo treatment for 12 months in a double-blind trial. MAIN OUTCOME MEASURES: We evaluated change in regional body composition of the abdomen and thigh as measured by computed tomography and change in total body composition as measured by dual-energy x-ray absorptiometry. RESULTS: Forty patients completed the study. Baseline median IGF-I sd score was -0.4. GH treatment increased IGF-I by 125 μg/liter (1.51 sd score), and based upon computed tomography, body composition improved with a decrease in visceral fat mass of 22.9 ml (P = 0.004), abdominal sc fat mass 70.9 ml (P = 0.003), and thigh fat mass 21.3 ml (P = 0.013), whereas thigh muscle mass increased 6.0 ml (P = 0.005). By dual-energy x-ray absorptiometry, lean body mass improved 2.25 kg (P = 0.005), and total fat mass decreased 4.20 kg (P < 0.001). No major side effects were seen. CONCLUSION: Unrelated to the GH-IGF-I levels at baseline, our results showed that long-term treatment with GH effectively improved body composition and represents a safe, potential treatment option, relieving some of the negative consequences of PWS.
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