Evaluation of Cardioprotective effect of Coleus forskohlii against Isoprenaline induced myocardial infarction in rats

Farogh Ahsan, H H Siddiqui, Tarique Mahmood, Ritesh Kumar Srivastav, Nayeem Ahmad

Abstract


Coleus forskohlii is an important ancient root drug of Indian origin, commonly known as gander
in indian ayurvedic system of medicine. A lot of research work has been done on Coleus forskohlii
regarding various cardiovascular disorders but no work has been done to find out its
cardioprotective activity. Wistar albino rats were divided into five main groups having 5 animal
each: Group 1 termed as Normal control (NC) received 0.5ml of normal saline throughout
experimental period and served as control. Group 2 termed as Isoprenaline group (ISO) received
0.5ml of normal saline for 28 day and received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at
an interval of 24 hours. Group 3 termed as Standard group (STD) received Metoprolol (pure) (10
mg/kg/day, p.o.) for 28 day and received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at an
interval of 24 hours. Group 4 termed as Test group 1 (TG 1) and Group 5 termed as Test group 2
(TG 2) received Coleus forskohlii (50 mg/kg/day, p.o.) (100 mg/kg/day, p.o.) for 28 day and
received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at an interval of 24 hours respectively.
The experiment was terminated on 31st day and animal were sacrificed by cervical decapitation
after an overnight fast. Blood was collected for estimation of biochemical parameter and heart was
dissected out for grading, heart/weight ratio and histopathological examination.the the level of
marker enzyme in serum as AST, ALT, LDH, CK, Troponin-I were significantly decreased
(Pandgt0.001) in rats pretreated with Coleus forskohlii when compared to that of group which received
isoprenaline alone. Further, histopathological examination showed the reduction of necrosis,
edema and inflammation following Coleus forskohlii pretreatment. Based on present findings, it is
concluded that Coleus forskohliil may be a potential preventive and therapeutic agent against the
myocardial necrosis associated ischemic heart disease.

Keywords


Myocardial infarction, Histopathology, Isoprenaline, Coleus forskohlii.

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DOI: https://doi.org/10.30750/ijpbr.2.1.3

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