Estrogen replacement decreases the level of antibodies against oxidized low-density lipoprotein in postmenopausal women with coronary heart disease
| Autor: | Jan C. Birkenhäger, M.C. Zillikens, Hans Jansen, J.W. Deckers, Nicoline Hoogerbrugge, K. Meeter |
|---|---|
| Přispěvatelé: | Internal Medicine, Erasmus MC other, Cardiology |
| Rok vydání: | 1998 |
| Předmět: |
congenital
hereditary and neonatal diseases and abnormalities medicine.medical_specialty medicine.drug_class Endocrinology Diabetes and Metabolism medicine.medical_treatment Hypercholesterolemia Coronary Disease Medroxyprogesterone Acetate Endocrinology In vivo Internal medicine medicine Medroxyprogesterone acetate Humans Particle Size Autoantibodies Chemotherapy biology Chemistry Cholesterol HDL Estrogen Replacement Therapy Smoking Autoantibody nutritional and metabolic diseases Middle Aged medicine.disease Menopause Lipoproteins LDL Postmenopause Lipoprotein Lipase Estrogen biology.protein Female Antibody Oxidation-Reduction Dyslipidemia medicine.drug |
| Zdroj: | Metabolism-Clinical and Experimental, 47(6), 675-680. W.B. Saunders |
| ISSN: | 1532-8600 0026-0495 |
| Popis: | The effect of estrogen replacement therapy (ERT) on plasma lipid concentrations and oxidation parameters was studied in 25 hypercholesterolemic women with coronary heart disease (CHD). During ERT, the low-density lipoprotein cholesterol (LDLc) concentration decreased from 4.31 ± 0.72 to 3.85 ± 0.62 mmol/L (P < .01) and high-density lipoprotein cholesterol (HDLc) increased from 1.42 ± 0.30 to 1.55 ± 0.33 mmol/L (P < .01). The concentration of autoantibodies against oxidized LDL decreased from 25.9 ± 22.0 to 22.7 ± 19.9 mg/L (P < .05), indicating that ERT may have antioxidative effects in vivo. The lag time to oxidation and the LDL subclass pattern did not change. Analysis of the influence of smoking on the efficacy of ERT showed that ERT significantly affected LDLc and HDLc concentrations in 15 nonsmoking women. However, in 10 cigarette smokers, no significant changes in LDLc or HDLc levels were observed. Smoking did not affect the concentration of autoantibodies to oxidized LDL or the lag time. Medroxyprogesterone acetate ([MPA] 10 mg daily) added to ERT decreased HDLc by 9% (P < .01) but did not affect the LDLc level, LDL subclass pattern, or lag time. In conclusion, ERT may have antioxidative effects in vivo and favorably affects dyslipidemia in hypercholesterolemic women with CHD, especially when they refrain from smoking. |
| Databáze: | OpenAIRE |
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