Objective: In the present study, an attempt has been made to evaluate the in vitro antidiabetic and cytotoxic potentials of the rhizome extract of Drynaria quercifolia (L.) J. Smith. Methods: In vitro antidiabetic activity was determined by two different assays such as alpha-amylase inhibition assay and glucose uptake assay. The plant extract with three different concentrations was used for this assay. L6 rat myogenic cells were selected and subjected to glucose uptake assay. The cytotoxic activity of the different concentrations of the plant extract on HepG2 cell line was also investigated in vitro through 3-(4,5, dimethythiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Results: The findings of the study provide evidence that the rhizome extract of D. quercifolia possesses significant anti-diabetic activity. In MTT assay, the significant cytotoxic effect of plant extract was observed by measuring the percentage of cell viability on the HepG2 cell line. Conclusion: The findings indicated that rhizome extracts of D. quercifolia have potential as a medicinal drug against diabetes mellitus (DM) and liver cancer. Further, studies with in vivo and clinical trials need to be conducted to establish rhizome extract as a safe agent for DM and liver cancer therapy.

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Oxidative stress is believed to be a key factor in the pathogenesis and perpetuation of the mucosal damage in inflammatory bowel disease. The investigation was envisaged to assess the protective effect of diethyl ether extract of leaves of Aegle marmelos Corr. (DEAM) in view of reported anti-inflammatory and antioxidant properties in acetic acid-induced enterocolitis in albino Wistar rats. Enterocolitis was induced by intrarectal injection of acetic acid (5% V/V). The study comprised of five different groups consisting of six animals each and two doses [100, 200 mg / kg] were selected. The protective effect in the treatment group of animals was assessed by measuring levels of biomarkers of inflammation [MPO] and oxidative stress [CAT, SOD and GSH] in the inflamed colon and several physiological parameters. Significant and dose dependent changes in the levels of biomarkers of oxidative stress in DEAM treated animals was suggestive of the antioxidant-mechanism protective effect by Aegle marmelos.

The present investigation has been carried out the hepatoprotective activity of Indigofera linnaei Ali on carbon tetrachloride induced wistar albino rats. Carbon tetrachloride induced liver damage was well manifested by significant increase in the activities of Aspartate transaminae (AST), Alanine transaminase (ALT), Alkaline phosphatase (ALP), Gamma glutamyl transferase (GGT), Total Bilirubin, Cholesterol, Triglycerides, Lipid peroxide (LPO) also decreased the levels of Total protein, Glycogen, Superoxide dismutase (SOD) and Reduced glutathione (GSH). The oral administration of Indigofera linnaei Ali (100 mg/kg bw) along with carbon tetrachloride for 21 days reversed these altered parameters to normal level which indicating the hepatoprotective efficacy of Indigofera linnaei Ali against carbon tetrachloride induced liver injury.

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