The present study was designed to identify antidiabetic and antioxidant constituents from ethanol bark extract of a medicinally important mangrove plant Xylocarpus granatum J. Koenig, using in vitro bioactivity-guided fractionation. The repeated fractionation of X. granatum ethanol bark extract (XGEB) by silica gel column chromatography yielded a compound with strong antidiabetic and antioxidant potential. The bioactive compounds likely to be present in the XGEB fraction were identified by FT-IR, 1 H & 13 C NMR and MS analysis and determined as a limonoid derivative Xyloccensin-I, by comparing spectral data with the literature reports. The isolated compound demonstrated excellent in vitro antidiabetic potential IC 50 values of 0.25 and 0.16 mg/ml, respectively for α-amylase and α-glucosidase inhibition study. The antioxidant potential assayed by DPPH, ABTS, superoxide and hydrogen peroxide scavenging studies exhibited that the isolated compound could scavenge these free radicals with IC 50 values of 0.041, 0.039, 0.096 and 0.235 mg/ml, respectively. Further, in silico study was performed to find the antidiabetic activity of Xyloccensin-I by docking it against α-glucosidase enzyme. The study demonstrated that Xyloccensin-I have satisfactory interactions and binding energies when docked into target which further confirms the possible mode of antidiabetic action of the isolated compound. The bioactivity assays further asserts the antidiabetic and antioxidant efficacy of the isolated compound which strongly suggests that Xyloccensin-I holds promise in the pharmaceutical industry. The results from this study provide new mechanistic evidence justifying, at least in part, the traditional use of X. granatum extract for antidiabetic and antioxidants activities.
The prevalence and outbreaks of anthrax are interlinked with the animal-environment-human context, which signifies the need for collaborative, trans-disciplinary and multi-sectoral approaches for the prevention and control of anthrax. In India, there are hardly any shreds of evidence on the role of various stakeholders’ on anthrax prevention and control. Therefore, this study addressed the experiences of various stakeholders on anthrax prevention and control strategies in Odisha, India. A qualitative explorative study was carried out using 42 in-depth-interviews among the stakeholders from health, veterinary and general administrative departments from the block, district, and state level. Two major themes emerged: (1) Epidemiological investigation of anthrax in Odisha, India, and (2) Biological and social prevention strategies for anthrax in Odisha, India. The study emphasizes setting up the surveillance system as per standard guideline, and strengthening the diagnostic facility at a regional medical college laboratory to avoid delay. Moreover, it emphasizes step-up inter-sectoral co-ordination, collaboration and sensitization among health, veterinary, forestry, education, nutrition and tribal welfare departments at all levels in order to reduce the prevalence and control the outbreaks of anthrax in Odisha state. It also recommends raising community literacy, in particular on safe carcass disposal, changing behavior on dead-livestock consumption, and compliance with livestock vaccinations.
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