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Tseng CS, Chen SM, Chien SC, et al. Pharmacokinetics of p-Aminohippuric Acid and Inulin in Rabbits with Aristolochic Acid Nephropathy. Adv Pharmacol Sci. 2011;2011:204501doi: 10.1155/2011/204501.
Tseng, C. S., Chen, S. M., Chien, S. C., & Hsu, K. Y. (2011). Pharmacokinetics of p-Aminohippuric Acid and Inulin in Rabbits with Aristolochic Acid Nephropathy. Advances in pharmacological sciences, 2011204501. https://doi.org/10.1155/2011/204501
Tseng, Chiao-Shih, et al. "Pharmacokinetics of p-Aminohippuric Acid and Inulin in Rabbits with Aristolochic Acid Nephropathy." Advances in pharmacological sciences vol. 2011 (2011): 204501. doi: https://doi.org/10.1155/2011/204501
Tseng CS, Chen SM, Chien SC, Hsu KY. Pharmacokinetics of p-Aminohippuric Acid and Inulin in Rabbits with Aristolochic Acid Nephropathy. Adv Pharmacol Sci. 2011;2011:204501. doi: 10.1155/2011/204501. Epub 2011 Jun 16. PMID: 21738526; PMCID: PMC3124128.
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Adv Pharmacol Sci. 2011;2011:204501. doi: 10.1155/2011/204501. Epub 2011 Jun 16.

Pharmacokinetics of p-Aminohippuric Acid and Inulin in Rabbits with Aristolochic Acid Nephropathy.

Advances in pharmacological sciences

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

Affiliations

  1. College of Pharmacy, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11014, Taiwan.

PMID: 21738526 PMCID: PMC3124128 DOI: 10.1155/2011/204501

Abstract

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 0.5 mg/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.

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