Document Type : Original Article
Authors
- Seyed Mohamad Jafar Haeri 1
- Gholam Reza Dashti 2
- Mohammad Mardani 2
- Bahman Rashidi 2
- Amene Nikgoftar Fathi 3
- Narges-al-sadat Haeri 4
1 Department of Anatomy, Medical School, Arak University of Medical Sciences, Arak, Iran
2 Department of Anatomy, School of medicine, Isfahan University of Medical Sciences, Isfahan, Iran
3 Department of Anatomical Sciences, Medical School, Arak University of Medical Sciences, Arak, Iran
4 Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract
INTRODUCTION: Cardiovascular disease is the principal cause of mortality and morbidity in developed countries, leading to the formation of atherosclerosis plaques and thrombosis. Apoptosis of endothelial cells is one of the primary factors in vascular thrombosis. Lipids, when oxidized by endothelial cells, result in an increased thickness of the arterial wall. Iron is also recognized as an atherogenic element that induces atherosclerosis. There remains uncertainty about the antioxidative role of vitamin E in the formation of atherosclerosis. In this study, the authors evaluated the effect of iron and vitamin E on the apoptosis of endothelial cells in the carotid arteries of hypercholesterolemic male rabbits.
METHOD: Thirty white male rabbits were randomly divided into five groups and fed the following diet for six weeks: Group 1: control, Group 2: cholesterol (1%), Group 3: cholesterol (1%) + vitamin E (50 mg/kg), Group 4: cholesterol (1%) + Iron (50 mg/kg), and Group 5: cholesterol (1%) + vitamin E (50 mg/kg) + Iron (50 mg/kg). Serum cholesterol, TG, HDL, and LDL levels were assessed after six weeks. Finally, the animals were sacrificed with ketamine, and carotid arteries were removed. The samples were fixed in 10% formalin, and TUNEL staining was used after the tissue processing. Cell counts were carried out under a light microscope.
RESULTS: Vitamin E decreased Serum cholesterol and apoptotic endothelial cells in the hypercholesterolemic + vitamin E diet (P< 0.05). However, they increased significantly in the interference groups compared to the control group (P< 0.05).
CONCLUSION: According to our findings, vitamin E showed to have a beneficial effect on preventing cardiovascular diseases and may play a positive role in the prevention of atherosclerosis.
Highlights
The Google Scholar and PubMed link for Seyed Mohamad Jafar Haeri
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The Google Scholar and PubMed link for Gholam Reza Dashti
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Keywords
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