[Clinical significance of urinary free dopamine as a marker of renal function].

Urinary free dopamine (DA) is derived from DA synthesized or converted from circulating DOPA in renal proximal tubules, and plays an important role for diuresis and natriuresis. As plasma free DA is in tiny amounts near detectable range, a large amount of free DA in urine is tubular origin, but not from circulating DA. In the present study, we hypothesized… CONTINUE READING