Urinary biotinidase and alanine excretion in patients with insulin-dependent diabetes mellitus

Autor: Ayako Tanae, Toshiaki Tanaka, Noriyuki Katsumata, Itsuro Hibi, Kou Hayakawa, Elena A. Terentyeva
Rok vydání: 1997
Předmět:
Zdroj: European journal of clinical chemistry and clinical biochemistry : journal of the Forum of European Clinical Chemistry Societies. 35(1)
ISSN: 0939-4974
Popis: Twenty-four-hour urine specimens from 21 juvenile insulin-dependent diabetics and 10 healthy controls were compared with respect to biotinidase activity and alanine content. Urinary biotinidase activity was analysed by a newly developed high-performance liquid chromatography (HPLC) method. It was found that the excretion of biotinidase in urine was elevated in diabetics (7.02 mU/d; p < 0.005) as compared with controls (not detectable). Alanine excretion was also found to increase (p < 0.01) in diabetics. Biotinidase excretion in diabetics was correlated with alanine excretion (rS = 0.667; p < 0.01), but not with protein, albumin or N-acetyl-beta-glucosaminidase excretion. The simultaneous elevation of urinary biotinidase and alanine excretion in juvenile diabetics suggests that changes in kidney metabolism arise in the early stages of diabetes.
Databáze: OpenAIRE