ABSTRACT
OBJETIVO: Avaliar as alterações de IGF-1, IGFBP-3, leptina e insulina após o uso de doses de reposição de hormônio de crescimento recombinante humano (rhGH) em crianças baixas pré-púberes com insuficiência renal crônica (IRC). CASUíSTICA E MÉTODOS: Em 11 crianças (3F:8M), com idade média de 9,6 anos, em uso de rhGH (0,23mg/Kg/semana) por 12 meses, foram dosados (antes, 6 e 12 meses após o início do tratamento com rhGH) leptina, insulina, glicemia, IGF-1 e IGFBP-3. RESULTADOS: As concentrações séricas de leptina, insulina e glicemia não variaram significativamente no decorrer do uso do rhGH, sendo observado o padrão de leptina e glicemia normais, com hiperinsulinemia. Houve aumento significativo da IGF-1 e IGFBP-3 durante o uso do rhGH. CONCLUSÕES: O uso de doses de reposição de rhGH durante 12 meses em um grupo selecionado de crianças com IRC propiciou aumento significativo da concentração sérica de IGF-1 e IGFBP-3, com leptinemia normal e resistência insulínica.
Subject(s)
Humans , Male , Female , Child , Kidney Failure, Chronic/drug therapy , Insulin-Like Growth Factor I/analysis , Hormone Replacement Therapy , Human Growth Hormone/therapeutic use , Leptin/blood , /blood , Body Composition , Electric Impedance , Enzyme-Linked Immunosorbent Assay , Body Height/drug effects , Body Height/physiology , Kidney Failure, Chronic/blood , Kidney Failure, Chronic/physiopathology , Human Growth Hormone/metabolism , Insulin/blood , Statistics, Nonparametric , Time FactorsABSTRACT
AIM: To analyze the changes in IGF-1, IGFBP-3, leptin and insulin after replacement doses of recombinant human growth hormone (rhGH) in short prepubertal children with chronic renal failure (CRF). PATIENTS AND METHODS: Eleven children (3F:8M), with mean age of 9.6 years, were treated with rhGH (0.23 mg/Kg weekly for 12 months). Serum leptin, insulin, glucose, IGF-1 and IGFBP-3 were measured before, 6 and 12 months after beginning rhGH treatment. RESULTS: The serum levels of leptin, insulin and glucose did not vary during the treatment; normal leptin and glucose levels and high insulin were observed. There was a significant increment of IGF-1 and IGFBP-3 during the use of rhGH. CONCLUSIONS: The replacement doses of rhGH during 12 months in a selected group of CRF children determined an increment in IGF-1 and IGFBP-3, associated to normal serum leptin and insulin resistance.
