Background: The objective of the study was to scientifically investigate the oral hypoglycemic activity of Caesalpinia bonduc on Alloxan induced diabetic albino rats. To compare the hypoglycemic effect of Caesalpinia bonduc with that of the standard drug Glibenclamide used in the treatment of diabetes mellitus.Methods: Adult healthy albino rats of wister strain of either sex weighing 150-200gms were included in the study. The animals were divided into 4 groups namely control, diabetic control, standard and test groups with 6 animals in each group. Diabetes was chemically induced using alloxan to produce hyperglycemia in rats. Standard drug Glibenclamide suspended in gum acacia was administered for standard group. Test drug Caesalpinia bonduc was administered for test group. Morning around 9 a.m. blood glucose levels were recorded on 1st, 3rd, 7th, 14th, 21st, and 28th days.Results: The control group of rats showed no variation. The diabetic control rats showed consistent hyperglycemia. Comparing the test drug Caesalpinia bonduc to the standard drug Glibenclamide, the test drug was 1.38 times more efficacious than the standard.Conclusions: The alcoholic extract of Caesalpinia bonduc (seeds) has shown more anti diabetic activity by lowering the blood glucose levels in diabetic rats significantly. These findings suggest that hypoglycemic potential of the test compound Caesalpinia bonduc is promising and found to be more significant than the standard compound.
Background: Histamine is an important mediator of allergic reactions. Even though presently available antihistaminics are effective in treatment of allergic reactions, still there is scope for better new drugs. Quercetin has been used as a nutritional supplement and may be beneficial against a variety of diseases. Some of the beneficial effects include anticancer, antitumor, anti-ulcer, anti-allergy and anti-inflammatory effects. As quercetin is used in traditional system of medicine for treatment of allergies, this study was undertaken to evaluate antihistaminic activity of quercetin.Methods: In histamine induced bronchospasm model, 18 guinea pigs were divided into 3 groups. Control group received normal saline, standard control group received Chlorpheniramine and test group received Quercetin. All drugs were given once daily for 5 days. Preconvulsive dyspnoea was calculated on day 0 and day 5 for all guinea pigs after administration of Histamine aerosol. In clonidine induced catalepsy model, 18 albino mice were divided into 3 groups. Control group, standard control group and test group received normal saline, Chlorpheniramine and Quercetin respectively. One hour after administration of drugs the mice were given clonidine and catalepsy was measured at 30, 60, 90, 120 and 150 min.Results: In histamine induced bronchospasm model, both chlorpheniramine and quercetin produced significant protection as compared to control group. In clonidine induced catalepsy model the effect of quercetin was comparable to chlorpheniramine.Conclusions: Quercetin has significant antihistaminic activity. It appears to be due to H1 receptor blockade, contrary to the belief that it inhibits release of histamine from mast cells.
Background: The objective of the study was to evaluate the knowledge and attitude towards pharmacovigilance and adverse drug reaction (ADR) reporting among the undergraduates, interns and postgraduate students. Methods: This was a cross sectional study done among the undergraduates, interns and post graduate medical students at Karnataka Institute of Medical Sciences, Hubballi using a pre-validated questionnaire that included 20 questions to evaluate the participants knowledge and perception of ADR and pharmacovigilance. The questionnaire was distributed to the participants (n=606) after taking their informed consent. The data was compiled and evaluated as percentages. Results: About 52% of the participants were aware of pharmacovigilance and 38.7% knew about the purpose of pharmacovigilance programme of India. 51% of the participants have experienced ADRs during their professional practice out of which 23% have reported to the pharmacovigilance centre. The most common barrier for under-reporting was lack of time to report ADR among 34% of the participants. 31% of the participants felt that managing patient was more important than reporting ADRs. 29% of the participants gave the reason as lack of access to ADR reporting forms. 25% of the participants had difficulty to decide whether ADR has occurred or not. Conclusions: Our study strongly suggests a greater need to create an awareness among undergraduate medical students, interns and postgraduate students to improve the reporting of ADRs.
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