PMID- 20846025 OWN - NLM STAT- MEDLINE DCOM- 20110202 LR - 20131121 IS - 1537-6524 (Electronic) IS - 1537-6516 (Linking) VI - 20 IP - 9 DP - 2010 Nov TI - Effect of Piper betle on cardiac function, marker enzymes, and oxidative stress in isoproterenol-induced cardiotoxicity in rats. PG - 564-71 LID - 10.3109/15376516.2010.514962 [doi] AB - The present study was designed to investigate the cardioprotective potential of Piper betle (P. betle) against isoproterenol (ISP)-induced myocardial infarction in rats. Rats were randomly divided into eight groups viz. control, ISP, P. betle (75, 150, and 300 mg/kg) and P. betle (75, 150, and 300 mg/kg) + ISP treated group. P. betle leaf extract (75, 150, or 300 mg/kg) or saline was orally administered for 30 days. ISP (85 mg/kg, s.c.) was administered at an interval of 24 h on the 28(th) and 29(th) day and on day 30 the functional and biochemical parameters were measured. ISP administration showed a significant decrease in systolic, diastolic, mean arterial pressure (SAP, DAP, MAP), heart rate (HR), contractility (+LVdP/dt), and relaxation (-LVdP/dt) and increased left ventricular end-diastolic pressure (LVEDP). ISP also caused significant decrease in myocardial antioxidants; superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), reduced glutathione (GSH), and myocyte injury marker enzymes; creatine phosphokinase-MB (CK-MB) isoenzyme and lactate dehydrogenase (LDH) along with enhanced lipid peroxidation; thiobarbituric acid reacting species (TBARS) in heart. Pre-treatment with P. betle favorably modulated hemodynamic (SAP, DAP, and MAP) and ventricular function parameters (-LVdP/dt and LVEDP). P. betle pre-treatment also restored SOD, CAT, GSH, and GPx, reduced the leakage of CK-MB isoenzyme and LDH along with decreased lipid peroxidation in the heart. Taken together, the biochemical and functional parameters indicate that P. betle 150 and 300 mg/kg has a significant cardioprotective effect against ISP-induced myocardial infarction. Results of the present study suggest the cardioprotective potential of P. betle. FAU - Arya, Dharamvir Singh AU - Arya DS AD - Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India. FAU - Arora, Sachin AU - Arora S FAU - Malik, Salma AU - Malik S FAU - Nepal, Saroj AU - Nepal S FAU - Kumari, Santosh AU - Kumari S FAU - Ojha, Shreesh AU - Ojha S LA - eng PT - Journal Article DEP - 20100916 PL - England TA - Toxicol Mech Methods JT - Toxicology mechanisms and methods JID - 101134521 RN - 0 (Cardiotonic Agents) RN - 0 (Cardiotoxins) RN - 0 (Plant Extracts) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - GAN16C9B8O (Glutathione) RN - L628TT009W (Isoproterenol) SB - IM MH - Animals MH - Blood Pressure/drug effects MH - Cardiotonic Agents/*pharmacology MH - Cardiotoxins/toxicity MH - Glutathione/metabolism MH - Heart/*drug effects MH - Isoproterenol/toxicity MH - Male MH - Myocardium/enzymology/*metabolism MH - Oxidative Stress/drug effects MH - *Piper betle MH - Plant Extracts/*pharmacology MH - Rats MH - Rats, Wistar MH - Thiobarbituric Acid Reactive Substances/metabolism EDAT- 2010/09/18 06:00 MHDA- 2011/02/03 06:00 CRDT- 2010/09/18 06:00 PHST- 2010/09/18 06:00 [entrez] PHST- 2010/09/18 06:00 [pubmed] PHST- 2011/02/03 06:00 [medline] AID - 10.3109/15376516.2010.514962 [doi] PST - ppublish SO - Toxicol Mech Methods. 2010 Nov;20(9):564-71. doi: 10.3109/15376516.2010.514962. Epub 2010 Sep 16.