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  • Protocol- RKTX2MAG-37K

    Document Type:
    Protocols
    Product Catalog Number:
    RKTX2MAG-37K
    Product Catalog Name:
    MILLIPLEX MAP Rat Kidney Toxicity Magnetic Bead Panel 2 - Toxicity Multiplex Assay

  • Use of a glyphosate-based herbicide-induced nephrotoxicity model to investigate a panel of kidney injury biomarkers. 24361898

    Accidental or intentional ingestion of glyphosate surfactant-based herbicides, like Roundup(®), leads to nephrotoxicity as well as death. In this study, a panel of kidney injury biomarkers was evaluated in terms of suitability to detect acute kidney injury and dysfunction. The Roundup(®) intoxication model involved oral administration of glyphosate to rats at dose levels of 250, 500, 1200 and 2500 mg/kg. Urinary and plasma biomarker patterns were investigated at 8, 24 and 48 h after dosing. Biomarkers were quantified by absolute concentration; by normalising to urine creatinine; and by calculating the excretion rate. The diagnostic performances of each method in predicting of acute kidney injury were compared. By Receiver Operating Characteristic (ROC) analysis of the selected biomarkers, only urinary kidney injury molecule-1 (KIM-1) best predicted histological changes at 8h (best cut-off point>0.00029 μg/ml). Plasma creatinine performed better than other biomarkers at 24 h (best cut-off point>0.21 mg/dl). Urinary KIM-1 was the best early biomarker of kidney injury in this glyphosate-induced nephrotoxicity model.
    Document Type:
    Reference
    Product Catalog Number:
    Multiple
    Product Catalog Name:
    Multiple

  • Kidney biomarkers in MCPA-induced acute kidney injury in rats: reduced clearance enhances early biomarker performance. 24480514

    For improved early detection and assessment of severe acute kidney damage following accidental or intentional ingestion of the herbicide MCPA, we compared a panel of 14 novel kidney injury biomarkers with plasma creatinine. Male Wistar rats received four different oral doses of MCPA and plasma and urine biomarker levels were measured at 8, 24 and 48 h after MCPA exposure. Diagnostic performances using absolute levels, urine levels normalized to urine creatinine or urinary excretion rate were determined by ROC analysis. Plasma creatinine remained the best early biomarker for predicting histological changes at 48 h. The performance of plasma cystatin C in mirroring kidney function was similar to that of plasma creatinine. While urine concentrations were generally less predictive, normalization by urine creatinine greatly improved the performance of several biomarkers. This may be due to an apparent amplification of the biomarker signal on normalizing to creatinine, in the presence of a declining glomerular filtration rate prior to reaching steady state. Normalized 8 h osteopontin and albumin concentrations outperformed other normalized biomarkers in predicting histological changes at later times. Normalized urinary kidney injury molecule-1 at 48 h also correlated well with the degree of kidney damage.
    Document Type:
    Reference
    Product Catalog Number:
    Multiple
    Product Catalog Name:
    Multiple
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