Detection of the level of urinary FPA in chronic nephritis with renal failure and its clinical implication.

The level of urinary FPA was assayed by high performance liquid chromatography (HPLC) in 42 normal controls, 57 cases of chronic glomerulonephritis, including 24 with normal renal function, 12 with renal insufficiency and 21 with uremia. Their levels were 24.40 +/- 10.30 micrograms/L, 26.99 +/- 5.77 micrograms/L, 38.81 +/- 6.28 micrograms/L, 79.74 +/- 18.76 micrograms/L, respectively. The level of urinary FPA in renal insufficiency function group was significantly higher than those of the control group and normal renal function group (P < 0.01). The patients with uremia presented dramatically higher level of urinary FPA than those in the renal insufficiency group (P < 0.01). A positive correlation was found between the level of urinary FPA and the blood creatine (r = 0.9120, P < 0.01). It was suggested that a hypercoagulable state existed in the patients with chronic nephritis with renal failure, in which the severity was closely related with the occurrence and development of the disease. The urinary FPA could serve as a good indicator for renal function.