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Protective Effect of Melissa Officinalis Extract Against H2o2-Induced Oxidative Stress in Human Vascular Endothelial Cells Publisher



Safaeian L1 ; Sajjadi SE2 ; Javanmard SH3 ; Montazeri H1 ; Samani F3
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Authors Affiliations
  1. 1. Department of Pharmacology and Toxicology, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Pharmacognosy, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Applied Physiology Research Center, Cardiovascular Research Institute, Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Research in Pharmaceutical Sciences Published:2016


Abstract

Melissa officinalis L. is a medicinal plant with a large variety of pharmacological effects and traditional applications. This study aimed to evaluate the protective and antioxidant activities of the extract of M. officinalis aerial parts on human umbilical vein endothelial cells (HUVECs) under oxidative stress induced by H2O2. Cells were incubated with H2O2 (0.5 mM, 2 h) after pretreatment with M. officinalis extract (25-500 μg/mL). Cell viability was evaluated by 3-(4, 5- Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. The concentration of hydroperoxides and ferric reducing antioxidant power (FRAP) were measured in intra- and extra-cellular fluids. Pretreatment of HUVECs with M. officinalis extract at the concentrations of 100-500 μg/mL improved the cell viability after exposure to H2O2 significantly. It also decreased hydroperoxides concentration and increased FRAP value in both intra- and extra-cellular fluids. The results revealed antioxidant and cytoprotective effects of M. officinalis against H2O2-induced oxidative stress in HUVECs. Due to the valuable antioxidant activity, this plant extract may have potential benefits for the prevention of cardiovascular diseases associated with oxidative stress.
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