Complex sentence: The kidneys produce their own natriuretic 32-residue peptide, urodilatin renal natriuretic peptide potency equals or exceeds that of Atriopeptin (ANP-(99-126)) the prototype of cardiodilatin.
Split into simpler sentences: The kidneys produce their own natriuretic 32-residue peptide. Urodilatin renal natriuretic peptide potency equals or exceeds that of Atriopeptin (ANP-(99-126)), the prototype of cardiodilatin.