Method for the early detection of renal disease and injury

摘要

Method For The Early Detection Of Renal Disease And Injury Abstract The invention relates to a method and kit for detecting the early onset of renal disease and injury, including renal tubular injury, utilizing NGAL as an early blood serum biomarker. NGAL is a small secreted polypeptide that is protease resistant and consequently readily detected in the blood serum following renal tubule cell injury. NGAL protein expression is detected predominantly in proximal tubule cells, in a punctate cytoplasmic distribution reminiscent of a secreted protein. The appearance of NGAL in the serum is related to the dose and duration of renal ischemia and nephrotoxemia, and is diagnostic of renal tubule cell injury and renal failure. NGAL detection is also a useful marker for monitoring the nephrotoxic side effects of drugs or other therapeutic agents.