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Combined effects of gallic acid and propolis on beryllium-induced hepatorenal toxicity

Integrative Zoology 2008年第3期3卷 194-207页

作者： Satendra K.NIRALA Peiqiang LI Monika BHADAURIA Guangqin GUO Institute of Cell Biology School of Life SciencesLanzhou UniversityLanzhouChina Institute of Genetics School of Basic Medical SciencesLanzhou UniversityLanzhouChina National Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhouChina

The combined effect of gallic acid (3,4,5-trihydroxy benzoic acid;GA;50 mg kg^(-1) i.p.) and propolis (200 mg kg^(-1)p.o.)was evaluated against beryllium-induced biochemical and morphological alterations in the liver and kidney. Femalealbino rats were exposed to beryllium nitrate (1 mg kg^(-1)i.p.) daily for 28 days followed by treatment with the abovementioned therapeutic agents either individually or in combination for five consecutive days. Exposure to berylliumincreased its concentration in the serum, liver and kidney and caused significant alterations in cytochrome P450enzymes, microsomal lipid peroxidation and protein contents. beryllium administration significantly altered theaspartate aminotransaminase, alanine aminotransaminase, lactate dehydrogenase, -glutamyl transpeptidase,bilirubin, creatinine and urea in serum, and the activity of acid phosphatase, alkaline phosphatase, adenosinetriphosphatase, glucose-6-phophatase and succinic dehydrogenase, triglycerides, cholesterol, protein contents,glycogen contents, lipid peroxidation and glutathione level in the liver and kidney. beryllium exposure inducedsevere alterations in hepatorenal morphology, revealing its toxic consequences at a cellular level. Individual administrationof GA and propolis reduced the effects on the studied parameters to a degree. Interestingly, GA in conjunctionwith propolis reversed the alterations in all of the variables examined, highlighting the beneficial effects ofcombined therapy over monotherapy in the alleviation of beryllium-induced systemic toxicity.

关键词： beryllium toxicity gallic acid 3,4,5-trihydroxy benzoic acid hepatorenal dysfunction propolis

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