A medicament for use in the treatment or regeneration of functionally impaired glomerular podocytes, the medicament comprising an aqueous solution, a pharmaceutical excipient and a human pancreatic ribonuclease polypeptide having a sequence identity of 100% with SEQ ID No. 1, wherein the pharmaceutical excipient comprises a bacteriostatic agent, a surfactant comprising polysorbate 20, an isotonic agent comprising mannitol, a stabilizing amino acid effective to stabilize the polypeptide against aggregation or oligomerization, or a mixture thereof, and the medicament is a pharmaceutical composition formulated for parenteral administration.