2018
DOI: 10.1530/ec-18-0099
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The growth hormone–insulin-like growth factor-I axis in the diagnosis and treatment of growth disorders

Abstract: The growth hormone (GH)–insulin-like growth factor (IGF)-I axis is a key endocrine mechanism regulating linear growth in children. While paediatricians have a good knowledge of GH secretion and assessment, understanding and use of measurements of the components of the IGF system are less current in clinical practice. The physiological function of this axis is to increase the anabolic cellular processes of protein synthesis and mitosis, and reduction of apoptosis, with each being regulated in the appropriate ta… Show more

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Cited by 115 publications
(84 citation statements)
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References 79 publications
(107 reference statements)
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“…GH is the main endocrine regulator of longitudinal growth in humans. GH is a peptide produced by somatotropic cells in the pituitary gland and it exerts its effect promoting growth plate chondrogenesis both directly and via the action of IGF-I, which is its principal mediator [38,39].…”
Section: Mirnas Regulating the Hypothalamus-pituitary And Gh/igf-i Axesmentioning
confidence: 99%
“…GH is the main endocrine regulator of longitudinal growth in humans. GH is a peptide produced by somatotropic cells in the pituitary gland and it exerts its effect promoting growth plate chondrogenesis both directly and via the action of IGF-I, which is its principal mediator [38,39].…”
Section: Mirnas Regulating the Hypothalamus-pituitary And Gh/igf-i Axesmentioning
confidence: 99%
“…The GH-IGF-1 axis is suppressed in states of malnutrition and in chronic illness or inflammation, resulting in the growth stunting that is commonly seen in chronic diseases of childhood 20. IGF-1 has previously been found to be decreased in children and adults with CF21 22 and is attributed to CF-related malnutrition and inflammation.…”
mentioning
confidence: 99%
“…Há autores que, inclusive, questionam a necessidade do uso de testes de estímulos na investigação de DGH por suas limitações: baixa acurácia e reprodutibilidade, alta taxa de falsos positivos, alto custo, efeitos colaterais e baixa predição de resposta ao rhGH [1,31,[45][46][47]. Alguns estudos propõem o uso da neuroimagem como recurso diagnóstico na investigação de DGH em pacientes com baixa estatura, pois há uma associação positiva entre alterações anatômicas da hipófise com a gravidade da secreção de GH [48,49].…”
Section: Diagnóstico De Dghunclassified
“…Como a dosagem sérica basal de GH e os testes de estímulo têm suas limitações, a medida indireta da secreção de GH, a partir das dosagens séricas de IGF-1 e IGFBP-3 basais, é preferível por apresentarem mínima variação em 24 horas e serem mais fáceis, menos onerosas e com maior reprodutibilidade, sobretudo nos pacientes sem evidência clínica característica de DGH [1,2]. Além disso, Juul et al reportaram uma alta correlação entre o pico de GH em resposta a um teste de estímulo e os valores séricos de IGF-1 e IGFBP-3 em pacientes adultos com suspeita de DGH [38].…”
Section: Uso Do Igf-1 E Igfbp-3 Na Avaliação Indireta Da Secreção De Ghunclassified
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