Podocalyxin ELISA is designed to measure podocalyxin in urine or tissue extract samples of rodent or human origin. Podocalyxin is a useful biomarker for the detection of podocyte injury involved with the onset and progression of glomerular diseases. Quantification of podocalyxin in urinary sediment is a marker for the severity of active glomerular injury and acute extracapillary changes.