کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5996642 1180690 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduced circulating endothelial progenitor cell number in healthy young adult hyperinsulinemic men
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Reduced circulating endothelial progenitor cell number in healthy young adult hyperinsulinemic men
چکیده انگلیسی

Background and aimsThe number of Endothelial Progenitor Cells (EPCs) is considered a novel marker of cardiovascular (CV) disease. It is not clear which are the main determinants of EPC number in apparently healthy subjects in the absence of overt clinical CV or metabolic abnormalities. We evaluated the main clinical determinants of EPC levels in a population of healthy subjects with normal glucose tolerance.Methods and resultsEPC number was determined in 122 healthy subjects (73M/49F;36.6 ± 8yrs). Blood samples were collected to test biochemical variables. OGTT was performed and insulin resistance/compensatory hyperinsulinemia was defined according to fasting plasma insulin (FPI) levels. EPCs were identified as cells co-expressing CD133/CD34/KDR antigens by flow-cytometry. CD133+/KDR+ count inversely correlated with BMI (rho=−0.18;p < 0.05), waist circumference (−0.2;<0.05), diastolic (−0.23;<0.01) and systolic blood pressure (−0.21;<0.05), uric acid (−0.24;<0.005), PAI-1 (−0.197; <0.05) and FPI (−0.2;<0.05) and directly correlated with HDL cholesterol (0.182;<0.05). CD34+/CD133+/KDR+ count inversely correlated with uric acid (−0.28;<0.005) and FPI (−0.2;<0.05). EPC number was lower in males (p < 0.05) and gender was the only independent predictor of EPC count (p < 0.05). By dividing the population in four subgroups based on gender and insulin resistance, CD133+/KDR+ levels were lower in insulin resistant compared to insulin sensitive males (p < 0.05) with no differences in females.ConclusionThe male gender is an independent predictor of low EPC levels in healthy subjects. This might contribute to explaining the higher CV risk in males compared to pre-menopausal age-matched females. In this study a reduced EPC number seems to be associated with insulin resistance in male subjects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nutrition, Metabolism and Cardiovascular Diseases - Volume 21, Issue 7, July 2011, Pages 512-517
نویسندگان
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