The serum levels of hepatocyte growth factor (HGF) were determined in
chronic renal failure (CRF) patients. Nondialysis patients with renal
insufficiency had significantly higher serum HGF than normal subjects
(0.34 +/- 0.10 ng/ml, n = 21 vs. 0.19 +/- 0.05 ng/ml, n = 15; p < 0.00
1), and the elevated serum HGF correlated with their serum creatinine
levels. Hemodialysis (HD) patients treated for 5-10 years showed highe
r serum HGF than those receiving HD for 1 year or less (0.45 +/- 0.14
ng/ml, n = 8 vs. 0.33 +/- 0.11 ng/ml, n = 9; p < 0.05). Continuous amb
ulatory peritoneal dialysis patients also showed elevated serum HGF le
vels comparable to those of HD patients. There was no difference in se
rum HGF levels in HD patients with or without acquired cystic disease
of kidney. Consequently, serum HGF is elevated in CRF, which may be at
tributed to the increased production of HGF in response to the chronic
renal injury, the effect of heparin, or reduced removal of serum HGF
in CRF patients.