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  • Title: Significance of guanidino compounds in non-dialyzed patients with chronic renal failure.
    Author: Ikezaki N.
    Journal: Nihon Jinzo Gakkai Shi; 1990 Mar; 32(3):283-90. PubMed ID: 2355664.
    Abstract:
    Various guanidino compounds were determined in 48 non-dialyzed patients with chronic renal failure. The patients were divided into two groups, as follows: group A, chronic glomerulonephritis and polycystic kidney; and group B, diabetes nephropathy, lupus nephritis and renal amyloidosis. Six kinds of guanidino compounds in the serum were measured by high performance liquid chromatography. Although guanidinosuccinic acid (GSA), methylguanidine (MG) and taurocyamine (G-TAU) were inversely related to deterioration of renal function, arginine and guanidinoacetic acid were not correlated with the serum creatinine and urea nitrogen (SUN) levels. GSA was increased exponentially with decrease in renal function as compared to SUN. The ratio of methylguanidine to creatinine (MG/CRN) was significantly higher in the patients of group B than those of group A (P less than 0.05) in the range of creatinine 2.0-8.0 mg/dl. MG/CRN showed a negative correlation with the progression rate of renal dysfunction (P less than 0.01). It is suggested that GSA might be a more sensitive marker for renal dysfunction than SUN at the end stage of chronic renal failure, and MG/CRN might represent another indicator reflecting the activity of the causal renal disease and progression rate of renal failure. Furthermore, G-TAU could be a potent substance indicating the disease state. From these results, it is concluded that determinations of guanidino compounds in the serum might be useful for recognizing of the state of chronic renal failure.
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