الفهرس 
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Abstract
Background: vitamin D deficiency could be a potentially modifiable and underestimated risk factor for ischemic heart diseases. Although the relationship between vitamin D status and cardiovascular diseases has not been clearly understood.Vitamin D deficiency may lead to adverse cardiovascular events by promoting endothelial dysfunction, microvascular dysfunction, insulin resistance, inflammation, and activation of the Renin-Angiotensin-Aldosterone-system leading to smooth muscle and myocardial hypertrophy.Aim: to assess and compare vitamin D status among patients with chronic stable angina and the control group and to assess the relation of vitamin D with the severity of angina.Methods: this study was a case control study conducted on 42 chronic stable angina patients and 42 controls attending family medicine/internal medicine clinics, Cairo University Hospitals.Detailed medical history, examination and laboratory tests (vitamin D, fasting lipid profile and blood sugar) were collected for all study participants