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In vivo hypoglycemic, antinociceptive and in vitro antioxidant activities of methanolic bark extract of crataeva nurvala

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Journal of Coastal Life Medicine 2017年第11期5卷 496-500页

作者： Uddin Jalal Karim Samira Gain Dwigbijoy Hassan Mahmudul Sultana Julie Azima Khalid Labu Zubair Phytochemical Research Laboratory Department of PharmacyWorld University of Bangladesh151/8 Green RoadDhaka-1205Bangladesh

Objective: To rationalize the folkloric use of hypoglycemic, antinociceptive and antioxidant potentials with phytochemical screening of methanolic bark extract of crataeva nurvala (C. nurvala) in vivo and in vitro. Methods: The collected bark was dried and grinded. The coarse powder was soaked in 2000 mL of 90% methanol for several days then filtrated. At 40 °C the volume of crude methanolic extract (CME) was reduced by a vacuum rotary evaporator, then the aqueous methanol extract was separated into petroleum ether, carbon tetrachloride, and aqueous soluble fractions by Kupchan protocol. Then the extracts were subjected to evaluate in vivo analgesic, hypoglycemic activities in Swiss albino mice model and antioxidant in vitro. Results: In quantitative phytochemical analysis, total phenolic content was found maximum (235.94 mg of GAE/g) in aqueous soluble fraction;in case of antioxidant potentials, DPPH free radical scavenging assay showed IC50 value of 9.25 μg/mL exhibited by aqueous soluble fraction in comparison to ascorbic acid (8.27 μg/mL) as a reference standard. The CMEs potentially (P < 0.05) reduced the acetic acid-induced writhing and increased (P < 0.05;P< 0.01) latency period in the tail immersion method at a dose dependent manner. The CME significantly reduced blood sugar level of diabetic rat induced by alloxan monohydrate. Conclusions: This study was conducted to validate the extensive use of C. nurvala bark as folk medicine with antinociceptive, hypoglycemic and antioxidant effects. It can be concluded that the bark of C. nurvala possesses good antinociceptive, moderate hypoglycemic and antioxidant activities. However, further chemical and pharmacological revise are needed to elucidate the detail mode of action behind this and identify the responsible active principles.

关键词： crataeva nurvala Antinociceptive Hypoglycemic Antioxidant

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