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1.
Phytother Res ; 27(6): 900-5, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22911540

RESUMO

Extracts of Aesculus hippocastanum L. (horse chestnut) seed have been used in the treatment of chronic venous insufficiency, edema and hemorrhoids. Most of the beneficial effects of horse chestnut are attributed to its principal component ß-escin or escin. We have evaluated the cytotoxic and apoptotic effects of escin in the H-Ras 5RP7 cell line by analyzing cell growth inhibition, apoptosis and caspase-3 dependent activity. We have also shown structural and ultrastructural changes in these cell using confocal and transmission electron microscopy. The results indicated that escin has significant inhibitory effects on cell growth and the percentage of apoptotic cells increased after treatment with escin, and the micrographs confirmed that escin damaged these cells and induced apoptosis.


Assuntos
Apoptose/efeitos dos fármacos , Escina/farmacologia , Fibroblastos/efeitos dos fármacos , Aesculus/química , Animais , Caspase 3/metabolismo , Linhagem Celular Transformada , Proliferação de Células/efeitos dos fármacos , Fibroblastos/ultraestrutura , Microscopia Eletrônica de Transmissão , Ratos
2.
Pediatr Int ; 41(2): 168-73, 1999 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10221021

RESUMO

BACKGROUND: A close association has been found between serum lipoprotein abnormalities and the risk of atherosclerosis. In adults, high stored body iron, high serum iron concentrations and low iron binding capacity were found to be risk factors for coronary heart disease. Iron-deficient diets have caused contradictory lipid changes in rats. This report investigates the relationships between iron deficiency, macronutrient intake and the serum lipid and lipoprotein profiles in children with iron deficiency anemia (IDA). METHODS AND RESULTS: Fifty-six children with IDA, aged 3.0 +/- 1.3 years and 60 healthy age- and sex-matched controls were evaluated. The mean total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C), lipoprotein (a) levels and LDL-C/high density lipoprotein cholesterol (HDL-C) and TC/HDL-C ratios of the IDA group were significantly lower than those of controls. While there were no differences in triglycerides and apolipoprotein B (apoB) values between patients and controls, apolipoprotein A-1 (apoA-1) and HDL-C levels were higher in the IDA group. Dietary energy, carbohydrates, total fat and protein intakes of the IDA group were lower than those of controls. After oral iron supplementation, the lipoprotein profile of patients with IDA became similar to controls. In the multivariate analysis, while energy was taken as a covariate, there was no difference in the lipid profile of patients and controls. CONCLUSIONS: Patients with IDA are also deficient in macronutrients. The low atherogenic serum lipid profile of IDA is not a direct result of iron deficiency itself, but related to decreased energy and protein intakes.


Assuntos
Anemia Ferropriva/sangue , Lipídeos/sangue , Lipoproteínas/sangue , Pré-Escolar , Carboidratos da Dieta/administração & dosagem , Gorduras na Dieta/administração & dosagem , Proteínas Alimentares/administração & dosagem , Feminino , Humanos , Lactente , Masculino , Análise por Pareamento
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