Growth Hormone (GH) Treatment Decreases Postprandial Remnant-Like Particle Cholesterol Concentration and Improves Endothelial Function in Adult-Onset GH Deficiency1
| Autor: | D.W. Erkelens, P. S. van Dam, P.C.N.J. Schreuder, Hans P. F. Koppeschaar, Geesje M. Dallinga-Thie, Th.B. Twickler, M. Castro Cabezas, H. W. Wilmink |
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| Rok vydání: | 2000 |
| Předmět: |
medicine.medical_specialty
Chemotherapy Apolipoprotein B biology Endothelium Vascular disease business.industry Endocrinology Diabetes and Metabolism medicine.medical_treatment Biochemistry (medical) Clinical Biochemistry medicine.disease Biochemistry Endocrinology medicine.anatomical_structure Postprandial Internal medicine Mole medicine biology.protein business Body mass index Chylomicron |
| Zdroj: | The Journal of Clinical Endocrinology & Metabolism. 85:4683-4689 |
| ISSN: | 1945-7197 0021-972X |
| Popis: | Premature atherosclerosis is a clinical feature in adult-onset GH deficiency. Evidence is accumulating that disturbances in triglyceride metabolism, reflected by abnormalities in circulating remnant lipoproteins, are associated with increased atherogenic potential. In a case-controlled intervention study, we investigated postprandial lipoprotein metabolism using a new remnant lipoprotein method based on immunoseparation principle [RLP-cholesterol (RLP-C)]. In addition, we analyzed retinyl ester (RE) analysis in plasma and in Sf , 1000 fraction. Endothelial function was assessed as flow-mediated dilatation (FMD). Eight patients diagnosed with acquired adult-onset GH deficiency and eight controls matched for gender, age, body mass index, and apolipoprotein (apo) E genotype were enrolled in the study. Oral vitamin A fat loading tests were performed at baseline in both groups and after 6 months of treatment with recombinant human GH (rh-GH) in the adult-onset GH-deficient patients. Adult-onset GHdeficient patients had significantly higher fasting RLP-C, postprandial RLP-C concentrations (plasma RLP-C, 0.29 6 0.14 mmol/L; and incremental area under the curve-RLP-C, 2.13 6 1.60 mmol*h/L, respectively) than controls (0.19 6 0.06 mmol/L and 1.05 6 0.72 mmol*h/L (P , 0.05), respectively). They also had significantly higher postprandial RE in plasma and Sf , 1000 fraction. Treatment with rh-GH significantly reduced postprandial RLP-C concentrations (incremental area under the curve-RPL-C 0.73 6 0.34 mmol*h/L; P , 0.05) but had no effects on the fasting RLP-C concentrations (0.317 6 0.09 mmol/L, P , 0.05), or on the postprandial RE in plasma and in Sf , 1000 fraction. Endothelial function measured as FMD was improved from 5.9 6 3.3% to 10.2 6 4.0% (P , 0.05) in patients treated with rh-GH. It is concluded that patients with adult-onset GH deficiency have increased levels of fasting and postprandial RLP-C and an impaired endothelial function as measured as FMD. Treatment with rh-GH resulted in a decrease of postprandial RLP-C concentration, thereby improving the postprandial atherogenic lipoprotein profile and improvement of endothelial function, however, the clearance of large chylomicron particles as reflected by RE remained disturbed. (J Clin Endocrinol Metab 85: 4683‐ 4689, 2000) |
| Databáze: | OpenAIRE |
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