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Background   Carissa opaca  are used traditionally in Pakistan for the treatment of various human ailments. Therefore, the study is arranged out to assess the cardio protective potential of different fractions of  Carissa opaca  leaves on CCl 4 -induced oxidative trauma in kidney.    Methods  The parameters studied in this respect were the cardiac function test (CK (U/l), CKMB (U/l), genotoxicity (% DNA fragmentation), characteristic morphological findings and antioxidant enzymatic level of cardiac tissue homogenate.    Result  The protective effects of various fractions of  Carissa opaca  ( C. opaca ) leaves extract against CCl 4  administration was reviewed by rat cardiac functions alterations. Chronic toxicity caused by eight week treatment of CCl 4  to the rats significantly changed the cardiac function test, decreased the activities of antioxidant enzymes and glutathione contents whereas significant increase was found in lipid peroxidation comparative to control group. Administration of various fractions of  C. opaca  leaves extract with CCl 4  showed protective ability against CCl 4  intoxication by restoring the cardiac functions alterations, activities of antioxidant enzymes and lipid peroxidation in rat. CCl 4  induction in rats also caused DNA fragmentation and histopathalogical abnormalities which were restored by co-admistration of various fraction of  C. opaca  leaves extract.    Conclusion  Results revealed that various fraction of  C. opaca  are helpful in cardiac dysfunctions.

Cardioprotective role of leaves extracts of Carissa opaca against CCl4 induced toxicity in rats