Hyperoxaluria-induced oxidative stress and antioxidants for renal protection

Saeed R. Khan

Research output: Contribution to journalArticlepeer-review

145 Scopus citations


Renal cellular exposure to oxalate (Ox) and/or CaOx crystals leads to the production of reactive oxygen species (ROS), development of oxidative stress followed by injury and inflammation. Renal injury and inflammation appear to play a significant role in stone formation. ROS are produced from many sources and involve a variety of signaling pathways. Tissue culture and animal model studies show that treatments with anti-oxidants and free radical scavengers reduce Ox/CaOx crystal induced injuries. In addition, CaOx crystal deposition in kidneys is significantly reduced by treatments with antioxidants and free radical scavengers, indicating their efficacy. These results point towards a great potential for the therapeutic application of antioxidants and free radical scavengers to reduce stone recurrence particularly after shock wave lithotripsy, which is itself known to generate ROS and cause renal damage.

Original languageEnglish (US)
Pages (from-to)349-357
Number of pages9
JournalUrological Research
Issue number5
StatePublished - Nov 2005
Externally publishedYes


  • Calcium oxalate
  • Nephrolithiasis
  • Oxalate
  • Oxidative stress
  • Reactive oxygen species

ASJC Scopus subject areas

  • Urology


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