| Short-term effects of growth hormone (GH) treatment or deprivation on cardiovascular risk parameters and intima-media thickness at carotid arteries in patients with severe GH deficiency. | |
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MedLine Citation:
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PMID: 15671089 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To explore early effects of GH treatment or deprivation on cardiovascular risk factors and carotid intima-media thickness (IMT), we designed this randomized, cross-over study in 34 adult patients with severe GH deficiency. At study entry, the patients were randomized into two groups (A and B); group A (n = 17) received appropriate replacement therapy including GH at standard doses for 6 months and then were withdrawn from GH for the subsequent 6 months; group B (n = 17) received appropriate replacement therapy excluding GH for 6 months with the addition of GH in the subsequent 6 months. After the first 6 months, we observed a significant increase in IGF-I levels and of high-density lipoprotein (HDL)-cholesterol together with a significant decrease in diastolic blood pressure, the total/HDL-cholesterol ratio, and C-reactive protein in the patients in group A, whereas vascular parameters did not significantly change. In the patients in group B, none of the parameters studied significantly changed. After 6 months of GH withdrawal in the patients in group A, a significant decrease in IGF-I levels, a significant increase in the total/HDL-cholesterol ratio and C-reactive protein, and a trend toward an impairment of carotid IMT and peak velocities were observed. In the patients in group B, the addition of GH to the standard replacement induced a significant increase in IGF-I levels together with a decrease in systolic and diastolic blood pressure, total cholesterol and total/HDL-cholesterol ratio, and C-reactive protein, and an increase in HDL-cholesterol levels with a trend toward an improvement of vascular parameters. At the end of the study, mean IMT was significantly lower than at baseline both in group A (from 0.88 +/- 0.28 to 0.85 +/- 0.27 mm, P = 0.0003) and in group B (from 0.83 +/- 0.21 to 0.80 +/- 0.20 mm, P = 0.003). In conclusion, 6 months of GH replacement has beneficial effects whereas 6 months of GH deprivation has detrimental effects on cardiovascular risk factors and atherosclerosis. These findings support the indication for GH replacement in severe GH deficiency adult patients. |
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Authors:
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Annamaria Colao; Carolina Di Somma; Francesca Rota; Rosario Pivonello; Maria Cristina Savanelli; Stefano Spiezia; Gaetano Lombardi |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2005-01-25 |
Journal Detail:
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Title: The Journal of clinical endocrinology and metabolism Volume: 90 ISSN: 0021-972X ISO Abbreviation: J. Clin. Endocrinol. Metab. Publication Date: 2005 Apr |
Date Detail:
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Created Date: 2005-04-07 Completed Date: 2005-05-31 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0375362 Medline TA: J Clin Endocrinol Metab Country: United States |
Other Details:
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Languages: eng Pagination: 2056-62 Citation Subset: AIM; IM |
Affiliation:
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Department of Molecular and Clinical Endocrinology and Oncology, "Federico II" University of Naples, via S. Pansini 5, 80131 Naples, Italy. colao@unina.it |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult C-Reactive Protein / analysis Carotid Arteries / pathology* Cholesterol, HDL / blood Cross-Over Studies Female Growth Hormone / therapeutic use* Hormone Replacement Therapy* Human Growth Hormone / deficiency* Humans Insulin-Like Growth Factor I / analysis Male Middle Aged Risk Factors Tunica Media / pathology* |
| Chemical | |
Reg. No./Substance:
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0/Cholesterol, HDL; 12629-01-5/Human Growth Hormone; 67763-96-6/Insulin-Like Growth Factor I; 9002-72-6/Growth Hormone; 9007-41-4/C-Reactive Protein |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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