Oleuropein attenuates the progression of heart failure in rats by antioxidant and antiinflammatory effects

• Published in: Naunyn-Schmiedeberg's archives of pharmacology Vol. 390; no. 3; pp. 245 - 252
• Main Authors: Janahmadi, Zeinab, Nekooeian, Ali Akbar, Moaref, Ali Reza, Emamghoreishi, Masoomeh
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2017; Springer Nature B.V
• Subjects: Animals; Anti-Inflammatory Agents - pharmacology; Antioxidants - pharmacology; Biomarkers - blood; Biomedical and Life Sciences; Biomedicine; Disease Models, Animal; Disease Progression; Glutathione Reductase - metabolism; Heart Failure - blood; Heart Failure - diagnostic imaging; Heart Failure - physiopathology; Heart Failure - prevention & control; Hemodynamics - drug effects; Inflammation Mediators - blood; Interleukin-1beta - blood; Iridoids - pharmacology; Male; Malondialdehyde - blood; Myocardial Infarction - blood; Myocardial Infarction - diagnostic imaging; Myocardial Infarction - drug therapy; Myocardial Infarction - physiopathology; Neurosciences; Original Article; Oxidative Stress - drug effects; Pharmacology/Toxicology; Rats, Sprague-Dawley; Superoxide Dismutase - metabolism; Tumor Necrosis Factor-alpha - blood; Ventricular Function, Left - drug effects; Heart failure; Oxidative stress; Inflammatory cytokines; Rat; Oleuropein
• ISSN: 0028-1298; 1432-1912
• DOI: 10.1007/s00210-016-1323-6

Much of the beneficial effects of olive products have been attributed to oleuropein. This study examined the effects of oleuropein in rats with heart failure induced by permanent ligation of left coronary arteries. Twenty-four hours after the operation, the rats were assigned to five groups including a sham assigned to receive vehicle (1 ml/day) and four coronary ligated groups assigned to receive vehicle or oleuropein at 5, 10, or 20 mg/kg/day. Five weeks later, echocardiographic and hemodynamic parameters, serum concentrations of oxidative stress, and inflammatory markers were determined. Myocardial infarction group receiving vehicle showed impaired hemodynamic and echocardiographic parameters as evidenced by decreased left ventricular systolic pressure, rate of rise and decrease of left ventricular pressure, stroke volume, ejection fraction, and cardiac output. In addition, significant reduction in superoxide dismutase and glutathione reductase was observed. Oleuropein treatment prevented the reduction of these variables. Moreover, the group had a significantly higher infarct size and serum malondialdehyde, interleukin-1β, and tumor necrosis factor-α than those of the sham group. Treatment with oleuropein prevented the increase of these variables. The results show that oleuropein attenuates the progression of heart failure, possibly by antioxidative and antiinflammatory effects.