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diagnosis of GHD in adults ( 12 , 13 ). Again, the underlying mechanism is considered to involve suppression of hypothalamic somatostatin ( 14 ). Furthermore, clonidine is used to diagnose GHD in children ( 15 ) and has been reported to inhibit AVP
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misclassifying those that were GH-sufficient ( 76 ) Performance not dependent on age, BMI, or sex ( 76 , 77 ) Clonidine ≤6.8 Used more commonly in children, but not in adults ( 83 , 84 ) ≤0.4 Relatively short over 90 min ( 85
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Dipartimento di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-infantili, Università di Genova, Genova, Italy
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; IGHD, idiopathic growth hormone deficiency; IGF1, insulin-like growth factor 1; OGHD, organic/genetic growth hormone deficiency; SDS, standard deviation score. Methods Clonidine and arginine stimulation tests and insulin tolerance test
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CR Prado CM Farias CT Almeida JC Vicente TA . Growth hormone (GH) response to hypoglycemia and clonidine in the GH-releasing hormone resistance syndrome . Journal of Endocrinological Investigation 2006 29 805 – 808 . 19 Laron Z
EndoERN, APHP Consortium Pitie Salpetriere Hospital, Necker Hospital, Paris, France
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EndoERN, APHP Consortium Pitie Salpetriere Hospital, Necker Hospital, Paris, France
Sorbonne University, Paris, France
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Lunenfeld B Brandes JM . Synergistic effect of growth hormone and gonadotropins in achieving conception in ‘clonidine-negative’ patients with unexplained infertility . Annals of the New York Academy of Sciences 1991 626 250 – 265 . ( https://doi.org/10
Department of Clinical Sciences and Community Health, Università degli Studi, Milan, Italy
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-thyroid antibodies. The proband’s sister had normal menses but exhibited absence of the right breast and moderate hypoplasia of the left one at ultrasound. She had been diagnosed with idiopathic GH deficiency (GH peak was blunted either after clonidine or insulin
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auxological and/or other clinical features suggestive of GHD ( 14 ) and IGF-1 concentration <0 s.d. (reference ranges standardized for age and sex), GHD was confirmed by GH stimulation tests. Two different stimulation tests (clonidine and insulin hypoglycemia
University of Belgrade, Medical Faculty, Belgrade, Serbia
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– 854 . ( https://doi.org/10.1161/ATVBAHA.114.304539 ) 25767277 10.1161/ATVBAHA.114.304539 40 Salvatori R Serpa MG Parmigiani G Britto AV Oliveira JL Oliveira CR Prado CM Farias CT Almeida JC Vicente TA , GH response to hypoglycemia and clonidine in
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<10 μg/L, should always be supported by auxological evidence of subnornal growth velocity. The GH stimulation tests currently recommended for paediatric patients include glucagon, clonidine, arginine or GHRH plus arginine. Interpretation of peak GH
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(FSH), tri-iodothyronine, thyroxine (T 4 ), free T 4 , dehydroepiandrosterone sulfate, estradiol, or testosterone were measured at baseline as previously described ( 7 ). Clonidine and combined pituitary stimulation tests (0.05–0.1 U/kg insulin, 200 μg