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Is the urinary kidney injury molecule an optimum biomarker for early detection of obstructive nephropathy? An experimental study

  • 0Urology Department, Urology and Nephrology Center, Faculty of Med/c/ne, Mansoura, Egypt.
Current Urology +

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April 21, 2025

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April 21, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Urinary kidney injury molecule-1 (KIM-1) shows a significant rise in obstructive nephropathy, aiding early diagnosis. This biomarker elevation may facilitate timely intervention for partial ureteral obstruction.

Area Of Science

  • Nephrology
  • Biomarker Discovery
  • Animal Models

Background

  • Obstructive nephropathy poses a significant threat to kidney function.
  • Early detection of acute kidney injury (AKI) is crucial for effective management.
  • Kidney injury molecule-1 (KIM-1) is a potential biomarker for kidney damage.

Purpose Of The Study

  • To assess urinary KIM-1 as an early predictor of AKI in obstructive nephropathy using an animal model.
  • To correlate urinary KIM-1 levels with histopathological findings in obstructive nephropathy.

Main Methods

  • Three distinct models of ureteral obstruction were established in male rats.
  • Biomarkers including serum creatinine, blood urea nitrogen, and urinary KIM-1 were measured at baseline and on days 7 and 14.
  • Kidney tissues were examined histopathologically on days 7 and 14.

Main Results

  • All measured biomarker levels, including urinary KIM-1, significantly increased by day 7 and further by day 14.
  • Urinary KIM-1, undetectable at baseline, showed a substantial elevation (22-85 fold) by day 7, increasing further by day 14.
  • Histopathological analysis confirmed tubular injury consistent with the observed biomarker changes.

Conclusions

  • Urinary KIM-1 is significantly elevated in cases of obstructive uropathy.
  • The rise in urinary KIM-1 suggests its utility in the early diagnosis of AKI secondary to partial ureteral obstruction.
  • Early detection via urinary KIM-1 could enable prompt therapeutic interventions.

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