Accumulation of methylglyoxal and d-lactate in Pb-induced nephrotoxicity in rats

Yu Shen Huang, Yi Chieh Li, Pei Yun Tsai, Chia En Lin, Chien Ming Chen, Shih-Ming Chen, Jen-Ai Lee

研究成果: 雜誌貢獻文章同行評審

14 引文 斯高帕斯(Scopus)


Lead (Pb) is an environmental pollutant associated with several diseases, such as nephrotoxicity. Methylglyoxal (MG) is a reactive dicarbonyl compound formed during glycolysis and reported to increase in kidney damage. Metformin is used as an MG scavenger in the clinic. In this study, we investigated the mechanism of Pb-induced renal injury and the effect of metformin on Pb-induced nephrotoxicity. Eighteen Wistar rats were randomly divided into three groups: control, Pb, and Pb+metformin groups. Pb (250ppm) was administered in drinking water, and 50mg/kg of metformin was co-administered orally. After 28days, the levels of MG and its metabolite d-lactate in urine, serum and renal tissues were examined. The elevation of renal MG (56.86±17.47 vs 36.40±5.69, p<0.01) and urinary d-lactate (0.68±0.28 vs 0.32±0.13, p<0.01) was observed in Pb-exposed rats compared with those in control rats. After co-treatment with metformin, these phenomena were attenuated. In the present study, it was demonstrated for the first time that urinary d-lactate might serve as the candidate marker for Pb-induced nephrotoxicity in the clinic, and metformin might be a new therapeutic candidate for Pb poisoning.
期刊Biomedical Chromatography
出版狀態已發佈 - 5月 2017

ASJC Scopus subject areas

  • 分析化學
  • 生物化學
  • 分子生物學
  • 藥理
  • 藥物發現
  • 臨床生物化學


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