👉 Nephrotoxin is a type of toxin produced by the kidneys. They are small proteins that can cause damage to the kidney and other organs in the body, including the liver and brain. Nephrotoxins can be found in urine or are released into the bloodstream when the kidneys fail to function properly. The main types of nephrotoxins include glomerular basement membrane protein (GBM), tubule-specific nephrogenic neuropeptide (TSNPs), and