In vivo antitussive activity of Coccinia grandis against irritant aerosol and sulfur dioxide-induced cough model in rodents

Cocciniagrandis (Cucurbitaceae) has extensively used to get relief from asthma and cough by the indigenous people of India. The antitussive effect of aerosols of two different concentrations (2.5%, 5%w/v) of methanol extract of C. grandis fruits were tested by counting the numbers of coughs produced due to aerosols of citric acid, 10 min after exposing the male guinea pigs to aerosols of test solutions for 7 min. In another set of experiment methanol extract was investigated for its therapeutic efficacy on a cough model induced by sulfur dioxide gas in mice. The results showed significant reduction of cough number obtained in the presence of both concentrations of methanol extract as that of the prototype antitussive agent codeine phosphate. Also, methanol extract exhibited significant antitussive effect at 100, 200 and 400 mg/kg, per orally by inhibiting the cough by 20.57, 33.73 and 56.71% within 90 min of performing the experiment

In vivo antitussive activity of Coccinia grandis against irritant aerosol and sulfur dioxide-induced cough model in rodents

Coccinia grandis (Cucurbitaceae) has extensively used to get relief from asthma and cough by the indigenous people of India. The antitussive effect of aerosols of two different concentrations (2.5%, 5% w/v) of methanol extract of C. grandis fruits were tested by counting the numbers of coughs produced due to aerosols of citric acid, 10 min after exposing the male guinea pigs to aerosols of test solutions for 7 min. In another set of experiment methanol extract was investigated for its therapeutic efficacy on a cough model induced by sulfur dioxide gas in mice. The results showed significant reduction of cough number obtained in the presence of both concentrations of methanol extract as that of the prototype antitussive agent codeine phosphate. Also, methanol extract exhibited significant antitussive effect at 100, 200 and 400 mg/kg, per orally by inhibiting the cough by 20.57, 33.73 and 56.71% within 90 min of performing the experiment respectively

EVALUATION OF TAXIFOLIN AND PHLORETIN AS ANTIANGIOGENIC: AN IN VIVO, IN VITRO EXPERIMENTAL ANALYSIS

Objective: To examine the antiangiogenic effect of some flavonoids (taxifolin and phloretin) against various In vivo and In vitro experimental models such as Chick Chorio Allantoic Membrane (CAM) assay, Dorsal Skinfold Chamber (DSFC) and Tube formation assay. Methods:Three different concentrations of drug solution (40µM, 80 µM, 120 µM) and (50 µM, 100 µM, 150 µM) were applied topically during CAM and DSFC assay. These assays were performed to detect antiangiogenic effect of the selected molecules. In tube formation assay, vascular endothelial growth factor stimulated Human Umbelical Vain Endothelial Cells (HUVECs). Results:Antiangiogenic results showed that different concentration of taxifolin and phloretin inhibited new blood vessels and vessels branches per area of CAMs. Similarly, there are reduced numbers and diameter of blood vessels when the doses of the drug increased which are observed in different experimental groups in DSFC model. In vitro anti angiogenic effect of our molecules was further confirmed by inhibition of tube formation on matrigel matrix that involved HUVECs. All the test groups were compared with the control group. Conclusion: The data reported here provide evidence that flavonoids taxifolin and phloretin revealed prominent anti angiogenic activities