Comparison of the course of biomarker changes and kidney injury in a rat model of drug-induced acute kidney injury.

Sasaki, D., Yamada, A., Umeno, H., Kurihara, H., Nakatsuji, S., Fujihira, S., Tsubota, K., Ono, M., Moriguchi, A., Watanabe, K., Seki, J.
Journal   Biomarkers.
Species  
Analytes Measured   Clusterin , GSTYb1 , HAVCR1 KIM-1 , Osteopontin , RPA-1
Matrix Tested   Urine
Year   2011
Volume   16
Page Numbers   553-566
Application   Toxicology
Abstract
Objective: To aid in evaluating the performance of biomarkers, we measured kidney injury biomarkers in rat models of drug-induced acute kidney injury.

Methods and results: Rats were treated with site-specific nephrotoxins, puromycin, gentamicin, cisplatin, or 2-bromoethylamine. Fifteen biomarkers (β-2-microglobulin, calbindin, clusterin, cystatin-C, KIM-1, GST-α, GST-μ, NGAL, osteopontin, EGF, TIMP-1, VEGF, albumin, RPA-1, and urinary total protein) were examined in comparison with BUN, serum creatinine, and NAG. Some biomarkers, which were different depending in each nephrotoxin, showed ability to detect the prodromal stage of drug-induced kidney injury. Characteristic changing patterns of biomarkers were also found depending on the specific lesion site in the kidney.

Conclusion: These data suggested that establishment of a suitable biomarker panel would facilitate detection of site-specific kidney injury with high sensitivity.

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