| RESEARCH ARTICLE
|Year : 2014 | Volume
| Issue : 1 | Page : 94-99
Effect of aged garlic extract and s-allyl cysteine and their interaction with atenolol during isoproterenol induced myocardial toxicity in rats
Pulla Reddy Avula1, Syed Mohammed Asdaq2, Mohammed Asad3
1 Department of Pharmacology, Krupanidhi College of Pharmacy, Bangalore, Karnataka, India
2 Department of Pharmacology, Al- Maarefa College for Science and Technology, Riyadh, Saudi Arabia
3 College of Applied Medical Sciences, Shaqra University, Shaqra, Saudi Arabia
Objectives: The study evaluates the cardioprotective effect of aged garlic extract (AGE) and its constituent; S-allylcysteine (SAC) and their interaction with atenolol during isoproterenol induced cardiac toxicity in rats.
Materials and Methods: Rats were administered AGE at two different doses of 2 ml/kg or 5 ml/kg orally whereas SAC was administered either at a dose 13.1 mg/kg or 32.76 mg/kg. The AGE or SAC was given alone or in combination with atenolol (6 mg/kg, p.o), every alternate day for three weeks. At the end of treatment, two doses of isoproterenol (150 mg/kg, s.c) were administered to rats. The electrocardiogram (ECG) was recorded followed by withdrawal of blood to estimate serum lactate dehydrogenase (LDH) and creatinine kinase-MB (CK-MB) activities. The activities of LDH, CK-MB as well as superoxide dismutase (SOD), catalase and thiobarbituric acid reactive substances (TBARS) were also determined in the heart tissue homogenate (HTH).
Results: The isoproterenol induced ECG changes were restored to normal in all treated groups. The AGE and SAC administration caused a decrease in serum LDH and CK-MB activities and an elevation of LDH and CK-MB activities in HTH. Atenolol alone or in combination with AGE and S-allylcsyteine demonstrated similar changes in biomarker activities.
Conclusion: AGE showed dose-dependent cardioprotection. However, concurrent administration of SAC with atenolol (6 mg/kg, p.o) combated more effectively the myocardial dysfunction during isoproterenol induced cardiotoxicity in rats.
College of Applied Medical Sciences, Shaqra University, Shaqra
Source of Support: None, Conflict of Interest: None
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