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and or radiotherapy at our institution. After treatment, patients who had suppressible GH OGTT (<1 ng/ml) were subjected to insulin-induced hypoglycemia (IIH). GHD was defined as peak GH level ≤3 ng/ml during IIH and insulin-like growth factor 1 (IGF1
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/mL). Impairment to growth hormone–insulin-like growth factor-1 (GH/IGF1): children with growth retardation or adults with obvious hypometabolic syndrome had IGF1 levels below 2 s.d. than their peers and had additional pituitary hormone deficiencies. Impairment
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Introduction Growth hormone (GH)-releasing hormone (GHRH), GH and insulin-like growth factor-1 (IGF-1), in addition to their recognised metabolic and endocrine effects, play a pivotal role in brain functions ( 1 , 2 ). Serum GH and IGF-1
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under-insulinization ( 3 ). These effects are mainly related to the role of insulin in the regulation of the growth hormone (GH)/insulin-like growth factor-1 (IGF-1) axis. In fact, normal insulin secretion and adequate portal insulin levels are necessary
Universitat Oberta Catalunya (UOC), Barcelona, Spain
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Univ Autònoma de Barcelona, Cerdanyola del Vallès, Spain
Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Barcelona, Spain
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Univ Autònoma de Barcelona, Cerdanyola del Vallès, Spain
Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Barcelona, Spain
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cause (43.7%). Male/female ratio stands at 3.9/1, tetraplegia (cervical lesions) accounts for 38.5% of the cases and complete injuries affect 56.7% of the patients ( 6 ). As known, GH mediates its action mainly on the liver acting through IGF1
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verified and collected at each study time. All patients were submitted to rhGH treatment according to the Italian Agency for Drugs guidelines ( 25 ). Biochemical analysis Fasting glucose, insulin and insulin-like growth factor 1 (IGF1) values were
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Endoscopic Skull Base Unit, Department of Neurosurgery, Hospital Universitario HM Puerta del Sur, Madrid, Spain
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IGF1 levels ( 9 ) and induce tumor shrinkage ( 10 ), improving surgical outcomes in acromegaly ( 11 , 12 , 13 ). However, the impact of SRLs in the GH-secreting pituitary tumor consistency has yet to be elucidated, and controversial results have been
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, insulin-like growth factor-1 (IGF-1), insulin) have shown potential roles in the diagnosis of CPP ( 10 , 11 , 12 ). Recently, Kutlu et al. ( 13 ) reported the role of another novel adipomyokine, irisin, in the diagnosis of CPP, and their study implied
School of Medicine, Western Sydney University, Sydney, Australia
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Westmead Clinical School, University of Sydney, Sydney, Australia
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Westmead Clinical School, University of Sydney, Sydney, Australia
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Department of Neurosurgery, Westmead Hospital, Sydney, Australia
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School of Medicine, Western Sydney University, Sydney, Australia
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secretion. All eight tumours causing acromegaly expressed growth hormone (GH) and produced elevated insulin-like growth factor 1 (IGF-1) levels (mean 3.1× upper limit of normal). Of these, six tumours expressed prolactin, but none caused high serum prolactin
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Departamento de Medicina, Faculdade de Ciencias Medicas da Santa Casa de Sao Paulo, Sao Paulo, Brasil
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Unidade de Endocrinologia do Desenvolvimento, Laboratorio de Hormonios e Genetica Molecular (LIM42), Hospital das Clinicas da Faculdade de Medicina, Universidade de Sao Paulo (USP), Sao Paulo, Brasil
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Unidade de Endocrinologia do Desenvolvimento, Laboratorio de Hormonios e Genetica Molecular (LIM42), Hospital das Clinicas da Faculdade de Medicina, Universidade de Sao Paulo (USP), Sao Paulo, Brasil
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Unidade de Endocrinologia do Desenvolvimento, Laboratorio de Hormonios e Genetica Molecular (LIM42), Hospital das Clinicas da Faculdade de Medicina, Universidade de Sao Paulo (USP), Sao Paulo, Brasil
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short stature in patients initially classified as ISS ( 7 ). The genetic defects associated with ISS are mainly located in genes that regulate the endochondral ossification process in the growth plate and in genes related to the GH–IGF-1 axis ( 8 , 9