The urinary excretion of retinol-binding protein (RBP), beta 2-microglobulin (beta 2-m), and beta-N-acetyl-D-glucosaminidase was monitored in patients with renal tubular damage secondary to multiple injuries, rhabdomyolysis, antibiotic treatment, or poisoning by various chemicals such as solvents, heavy metals, or pesticides. In almost all cases, RBP proved to be a more sensitive index of renal...

1. To evaluate tubular damage in diabetic patients, we measured the 24 h urinary excretion of five enzymes (N-acetyl-beta-D-glucosaminidase, gamma-glutamyl transpeptidase, dipeptidyl aminopeptidase IV, alanine aminopeptidase and alkaline phosphatase) that originate in renal proximal tubular cells. 2. Studies were performed on 118 non-insulin-dependent diabetic patients, 59 non-diabetic patients...

Previous investigations had indicated that the epithelial cells at the medial surface of the palate differentiate prior to fusion. An increase in adhesiveness and signs of partial autolysis were reported to be part of the differentiation. It was not determined, however, whether or not the autolytic processes may result in the total lysis of the cells, even if fusion is prevented. This problem w...

Sum mary Aim: The aim of this study was to establish serum sistatine C, urine β2 microglobulin, gluthatione-S -transferase π and N-acetyle β-D glucosaminidase levels in order to evaluate the effect of total parenteral nutrition on renal function in premature infants. In addition, we aimed to compare the renal functions between premature infants receiving total parenteral nutrition and control g...

The early diagnosis of Lowe's syndrome can be difficult. Urinary excretion of retinol binding protein (RBP) and the lysosomal enzyme N-acetyl-glucosaminidase (NAG) were significantly increased in boys with Lowe's syndrome. Measurement of these urine parameters is recommended in suspected cases.

Proximal renal tubular function was studied in 522 consecutive patients entered into the Medical Research Council's fourth myelomatosis trial. Assessment was made at presentation after a 48 h period of hydration but before administration of chemotherapy. The most common abnormalities in the urine other than light chain proteinuria were raised concentrations of the low molecular weight proteins ...

lysosomal enzymes, N-acetyl-8-glucosaminidase, 8-galactosidase, acid phosphatase, myeloperoxidase and lysozyme, as well as for cytochrome oxidase, 5'-nucleotidase and neutral a-glucosidase. In addition, the distribution of activity against [ 'Hlelastin, 1 3H]acetylated casein and N-benzyloxycarbonylL-alanine 2-naphthyl ester, a synthetic substrate used for elastase determinations, was examined....

Two histological subtypes of idiopathic nephrotic syndrome are commonly recognized in children, namely minimal change nephropathy and focal segmental glomerulosclerosis. Children with minimal change nephropathy (the majority of whom are steroid-sensitive) and focal segmental glomerulosclerosis (the majority of whom are steroid-resistant) require early identification in order to ensure appropria...

Bacillus anthracis could be distinguished from the taxonomically related species B. cereus, B. mycoides, and B. thuringiensis by a comparison of glycosidase activities. All the bacilli tested possessed alpha-glucosidase activity, as evidenced by the hydrolysis of p-nitrophenyl-alpha-D-glucoside. In B. anthracis, the glucosidase activity could be enhanced by the addition of agents which damage c...