[Study of tartrate resistant acid phosphatase in patients with chronic renal failure on maintenance hemodialysis].

In the diagnosis of renal osteodystrophy (ROD) and the monitoring of its clinical course, several biochemical parameters have been appreciated as a useful indicators. The present investigations were designed to evaluate the clinical value of serum tartrate resistant acid phosphatase (TRACP) as an additional parameter of osteoclastic activity in ROD based upon the concept that TRACP was marker enzyme specific for osteoclast. Serum TRACP was assayed in 72 patients on long term hemodialysis and compared with conventional parameters of ROD such as ALP, Osteocalcin, Hydroxyproline. Bone change was analyzed according to Jensen's method and categorized into 4 stages. Serum TRACP was exclusively elevated and revealed a evident correlations with each parameters as follows: TRACP v. PTH-C, r = 0.501 p less than 0.01. Hydroxyproline, r = 0.429 p less than 0.05., ALP, r = 0.001., Osteocalcin, r = 0.540 p less than 0.01. In addition, TRACP value in the patients with high stage significantly higher than that in those low stage ROD. These results suggest that measurement of TRACP would be of clinical importance and useful for diagnosis of ROD in chronic maintenance hemodialized patients.