Introduction: The present study was undertaken to evaluate the protective activity of 95% hydroalcoholic extract of Barleria Montana leaves against anti-TB drugs induced hepatotoxicity. Methods: Hepatotoxicity was induced by anti-TB drugs once daily for 35 days and simultaneously 95% hydroalcoholic extract of Barleria Montana (250 & 500 mg/kg p.o.) was administered one hour prior administration of anti-TB drugs. Silymarin was used as standard drug (100 mg/kg p.o.). Results: Elevated levels of SGOT, SGPT, ALP, TB & total cholesterol and decreased total HDL following anti-TB drugs administration. Pretreatment of 95% hydroalcoholic extract of Barleria Montana with anti-TB drugs were significantly reduced biochemical markers and increased total HDL. In vivo antioxidant parameters such as SOD, CAT, GSH, GPx and GRx were suppressed in hepatic control animals. Pre treatment of 95% hydroalcoholic extract of Barleria Montana with anti-TB drugs significantly reduced lipid per oxidation and increased antioxidant activities. Conclusion: The result of the present study was indicated that Barleria Montana showed protective effect on liver toxicity induced by anti-TB drugs might be attributed to its antioxidant activity.
To evaluate the leaf volatile constituents of essential oil of Coleus zeylanicus and evaluate their anti-oxidant and anti-fungal activity. The Chemical composition of Coleus zeylanicus essential oil was determined using GC-MS and FT-IR analytical techniques. The antioxidant activity was evaluated using DPPH scavenging assay. The anti-fungal effect was tested against two potential pathogenic fungal strains - Candida albicans and Malassezia furfur using agar well diffusion method. The essential oil was profiled by the presence of sesquiterpene hydrocarbons 90.67% of their total composition followed by oxygenated monoterpenes and monoterpene hydrocarbons as 5.3% and 2.1% respectively. The GC-MS results showed 14 compounds from Coleus zeylanicus leaf EO representing 98.07% of the total oil composition. The major component was identified as a-Gurjunene (35.94%), a-bisabolol (10.82%) and G-selinene (4.26%). EO showed remarkable antioxidant activity values of IC50 = 59.78± 3.21µg/ml by DPPH scavenging assay. The essential oil showed interesting anti-fungal effects against two pathogenic fungal strains. The most sensible strains to Coleus zeylanicus EO was Malassezia furfur (32.00±0.50mm) compared to that of Candida albicans (15.00±1.25mm). Hence, Coleus zeylanicus EO has potential application against fungal infection and oxidative stress-related diseases. However, further investigations are necessary to isolate and investigate the action mechanism of these bioactive compounds.
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