alexa Prevention of ischaemia-induced biochemical changes by curcumin & quinidine in the cat heart.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Bioequivalence & Bioavailability

Author(s): Dikshit M, Rastogi L, Shukla R, Srimal RC

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Abstract Effect of myocardial ischaemia on the bioantioxidants levels in the cat heart was evaluated. In addition, effect of curcumin, an anti-inflammatory and anti-thrombotic drug, and quinidine, a standard antiarrhythmic drug, was also studied in the cat. Myocardial ischaemia was induced by the ligation of left descending coronary artery. Quinidine (1 mg/kg, iv) was administered 15 min prior to while curcumin (100 mg/kg, ip) was given 30 min before ligation. Hearts were removed 4 h post coronary artery ligation. Levels of glutathione (GSH), malonaldelhyde (MDA), myeloperoxidase (MPO), superoxide dismutase (SOD), catalase (CAT) and lactate dehydrogenase (LDH) were estimated in the ischaemic and non-ischaemic zones. Both the drugs protected the animals against decrease in the heart rate and blood pressure following ischaemia. In the ischaemic zone, after 4 h of ligation, an increase in the level of MDA and activities of MPO and SOD (cytosolic fraction) were observed. Quinidine and curcumin pretreatment prevented the ischaemia-induced elevation in MDA contents and LDH release. Curcumin pretreatment did not prevent the increase in MPO activity while quinidine did. Results obtained indicate alterations in the bioantioxidants following ischaemia and both curcumin and quinidine prevented ischaemia induced changes in the cat heart.
This article was published in Indian J Med Res and referenced in Journal of Bioequivalence & Bioavailability

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