TY - JOUR
T1 - Impaired growth hormone secretion correlates with visceral adiposity in highly active antiretroviral treated HIV-infected adolescents
AU - Viganò, Alessandra
AU - Mora, Stefano
AU - Brambilla, Paolo
AU - Schneider, Laura
AU - Merlo, Marzia
AU - Monti, Lucilla D.
AU - Manzoni, Paola
PY - 2003/7/4
Y1 - 2003/7/4
N2 - Background: HIV-infected adults with lipodystrophy, characterized by excess accumulation of intra-abdominal adipose tissue (IAT), showed impaired growth hormone (GH) secretion. Data are lacking in paediatric lipodystrophy with the same features. Methods: Twenty-five pubertal HIV-infected children were assessed for GH response (GH-AUC0-120min) to arginine + GHRH testing, insulin-like growth factor-1 (IGF-1), IGF binding protein 3 (IGFBP-3), insulin, glucose, cholesterol, triglycerides, free fatty acids and nitric oxide levels. Body composition and IAT content were evaluated by dual-energy x-ray-absorptiometry and magnetic resonance imaging. An excess accumulation of IAT was defined as a value > 41 cm2. Differences between children with (V+) and without (V-) excess IAT were assessed by non-parametric tests and multivariate analysis. Results: Ten V+ (mean IAT, 82.5 cm2) and 15 V- (mean IAT, 26.8cm2) were identified; they were similar for age (13.8 versus 14.8 years), body mass index (20.2 versus 19.5 kg/m2), male:female ratio (3/7 versus 8/7), months on highly active antiretroviral therapy (54.5 versus 55 months). V+ showed lower GH-AUC0-120min (16.4 versus 31.6 μg·h/l; P = 0.002), lower IGF-1 concentrations (384 versus 515 ng/ml; P = 0.03) and higher insulin levels (17.8 versus 10.5 μlU/ml; P = 0.01) than V-. V+, as compared to V-, showed lower lean mass (total, P = 0.025; arms, P = 0.024; legs, P = 0.008) and higher fat mass (total, P = 0.0038; arms, P = 0.028; trunk, P <0.0001). Lipid profile and glucose, IGFBP-3, nitric oxide and free fatty acids levels were similar in the two groups. GH-AUC0-120min correlated negatively with IAT content and insulin levels. Conclusion: Impaired GH secretion is detectable in pubertal children with increased visceral adiposity and hyperinsulinemia. GH therapy should be considered in lipodystrophic HIV-infected children with excess IAT.
AB - Background: HIV-infected adults with lipodystrophy, characterized by excess accumulation of intra-abdominal adipose tissue (IAT), showed impaired growth hormone (GH) secretion. Data are lacking in paediatric lipodystrophy with the same features. Methods: Twenty-five pubertal HIV-infected children were assessed for GH response (GH-AUC0-120min) to arginine + GHRH testing, insulin-like growth factor-1 (IGF-1), IGF binding protein 3 (IGFBP-3), insulin, glucose, cholesterol, triglycerides, free fatty acids and nitric oxide levels. Body composition and IAT content were evaluated by dual-energy x-ray-absorptiometry and magnetic resonance imaging. An excess accumulation of IAT was defined as a value > 41 cm2. Differences between children with (V+) and without (V-) excess IAT were assessed by non-parametric tests and multivariate analysis. Results: Ten V+ (mean IAT, 82.5 cm2) and 15 V- (mean IAT, 26.8cm2) were identified; they were similar for age (13.8 versus 14.8 years), body mass index (20.2 versus 19.5 kg/m2), male:female ratio (3/7 versus 8/7), months on highly active antiretroviral therapy (54.5 versus 55 months). V+ showed lower GH-AUC0-120min (16.4 versus 31.6 μg·h/l; P = 0.002), lower IGF-1 concentrations (384 versus 515 ng/ml; P = 0.03) and higher insulin levels (17.8 versus 10.5 μlU/ml; P = 0.01) than V-. V+, as compared to V-, showed lower lean mass (total, P = 0.025; arms, P = 0.024; legs, P = 0.008) and higher fat mass (total, P = 0.0038; arms, P = 0.028; trunk, P <0.0001). Lipid profile and glucose, IGFBP-3, nitric oxide and free fatty acids levels were similar in the two groups. GH-AUC0-120min correlated negatively with IAT content and insulin levels. Conclusion: Impaired GH secretion is detectable in pubertal children with increased visceral adiposity and hyperinsulinemia. GH therapy should be considered in lipodystrophic HIV-infected children with excess IAT.
KW - Growth hormone
KW - HAART
KW - Lipodystrophy
KW - Paediatric HIV infection
UR - http://www.scopus.com/inward/record.url?scp=0041867858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041867858&partnerID=8YFLogxK
U2 - 10.1097/00002030-200307040-00003
DO - 10.1097/00002030-200307040-00003
M3 - Article
C2 - 12824780
AN - SCOPUS:0041867858
VL - 17
SP - 1435
EP - 1441
JO - AIDS
JF - AIDS
SN - 0269-9370
IS - 10
ER -