Screening of ethyl acetate extract of Bridelia micrantha for hepatoprotective and anti-oxidant activities on Wistar rats

被引:10
|
作者
Nwaehujor, Chinaka O. [1 ]
Udeh, Nkeiruka E. [2 ]
机构
[1] Univ Nigeria, Dept Vet Physiol & Pharmacol, Nsukka, Enugu State, Nigeria
[2] Michael Okpara Univ Agr, Dept Vet Physiol & Pharmacol, Umudike, Abia State, Nigeria
关键词
Bridelia micrantha; Ethyl acetate leaf extract; Hepatoprotective; Antioxidant; DIABETES-MELLITUS; MANAGEMENT;
D O I
10.1016/S1995-7645(11)60196-X
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Objective: To explore the hepatoprotective and anti oxidant activities of the methanolic leaf extract of Bridelia micrantha (B. micrantha) on paracetamol induced liver damage in Wistar rats. Parameters were measured including alanine aminotransaminase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), bilirubin and total protein. The anti oxidant effects were studied using the 1, 1-Diphenynl-2 Picrylhydrazyl (DPPH) and Ferric Reducing Antioxidant Power (TRAP) assay methods. B. micrantha extract decreased the level of AST in the rats given PCM from (129.47 +/- 0.92I) IU/L to (57.78 +/- 1.71) IU/L (P<0.05). This was lower than the value for Silymarin which was (59.92 +/- 1.41) IU/L. ALT concentration was reduced from (150.18 +/- 2.23) IU/L to (79.10 +/- 2.01) IU/L (p<0.05). ALP was reduced from (49.86 +/- 0.85) IU/L to (29.64 +/- 1.53) IU/L (P<0.05). Total bilirubin was reduced from (2.14 +/- 0.10 mg/dL) to (0.18 +/- 0.07) mg/dL (P<0.05) while total protein was increased from (4.26 +/- 0.30) mg/dL to (6.20 +/- 0.19) mg/dL (P<0.05). Concentrations ranging from 10 - 400 mu g/mL of B. micrantha were assayed for antioxidant activities. The DPPH assay showed 98% antioxidant activity at concentration of 400 1,1 mu g/mL. The FRAP values were 0.016. 0.39, 0.455, 0.601 and 1.382 mu M at 10, 50. 100. 200 and 400 mu g/mL respectively. Conclusion: Results suggest that B. micrantha has hepatoprotective and anti oxidant potentials. However, further work involving fractionation needs to done to isolate the active compound responsible for the hepatoprotective activity.
引用
收藏
页码:796 / 798
页数:3
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