Pharmacokinetics of p -aminohippuric acid and inulin in rabbits with aristolochic acid nephropathy

Kuang Yang Hsu, Chiao Shih Tseng, Shih Ming Chen, Shu-Chen Chien

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1 引文 斯高帕斯(Scopus)

摘要

The characteristics of aristolochic acid nephropathy (AAN) are interstitial fibrosis and atrophy of the proximal tubules, but with no change in glomeruli. To investigate the effects of AA on renal functions and the pharmacokinetics (PKs) of p-aminohippuric acid (PAH) and inulin, New Zealand white rabbits were used in this study. The plasma concentrations of PAH and inulin were determined by validated HPLC methods. After a single intravenous administration of 0.5mg/kg aristolochic acid sodium (AANa), rabbits exhibited mild to moderate nephrotoxicity on the 7th day. Significant tubulointerstitial damage to kidney specimens was found, but there were no remarkable glomerular changes. Clearance rates of PAH and inulin both significantly decreased in AANa-treated rabbits. In addition, there was a significant correlation among the degree of tubulointerstitial changes and PK parameters of PAH after AANa administration, but no correlation was noted with the PKs of inulin. With mild to moderate AAN in rabbits, the renal plasma flow significantly decreased by 55%, and the glomerular filtration rate also significantly decreased by 85%. In conclusion, major renal lesions were found on proximal tubules after AANa administration. The PKs of PAH and inulin significantly changed, and kidney functions, including the RPF and GFR, were reduced.

原文英語
文章編號204501
期刊Advances in Pharmacological Sciences
2011
DOIs
出版狀態已發佈 - 2011

ASJC Scopus subject areas

  • Molecular Medicine
  • Pharmacology (medical)
  • Pharmacology, Toxicology and Pharmaceutics(all)

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