It has previously been shown that granite workers with heavy exposure to silica had glomerular and proximal tubular dysfunction evidenced by increased urinary excretions of albumin, alpha-1-microglobulin (AMG), and beta-N-acetyl-glucosaminidase (NAG). The investigation was replicated in another group of granite workers to further elucidate the exposure effect relation. The urinary excretion of ...

Two enzymes, P-galactosidase and N-acetyl-fi-glucosaminidase, have been detected in pigment epithelial cells of cattle. The optimum activity for N-acetyl-P-glucosaminidase is at pH 5; in contrast, /3-galactosidase exhibits a broad activity maximum from approximately pH 4 to 6, with a "shoulder" in the latter range. Differential centrifugation of .25M sucroseethylenediamine tetraacetic acid (EDT...

Article history: Received on: 22/08/2012 Revised on: 05/09/2012 Accepted on: 15/09/2012 Available online: 28/09/2012 The ethanolic root extract of Saccharum spontaneum of family Poaceae was used to treatthe urolithiasis induced by glycolic acid On this course, the extract also repairs the changesthat happened in the lysosomal enzymes like β-D-glucuronidase, xanthine oxidase in liver and kidney ...

Renal tubular lysosomal enzyme activities like alanine aminopeptidase (AAP) and N-acetyl-β-D-glucosaminidase (NAG) have been shown to increase in patients developing diabetic nephropathy and nephrosclerosis. This study aimed to determine the activities of N-acetyl-β-D-glucosaminidase and alanine aminopeptidase and albumin concentration in urine samples of patients with type 2 diabetes. One hund...

We measured the excretion rates of six urinary enzymes that either originate from the proximal renal tubule, like alanine aminopeptidase (EC 3.4.11.2), alkaline phosphatase (EC 3.1.3.1), gamma-glutamyltransferase (EC 2.3.2.2), and N-acetyl-beta-D-glucosaminidase (EC 3.2.1.30), or that are typical low-molecular-mass proteins, like lysozyme (EC 3.2.1.17) and pancreatic ribonuclease (EC 3.1.27.5)....

The hemagglutinin of fowl plague virus has been expressed in Spodoptera frugiperda (Sf9) cells and in Estigmene acrea cells by using a baculovirus vector. Structural analysis revealed that the endo-H-resistant N-glycans of HA from Sf9 cells were predominantly trimannosyl core oligosaccharides, whereas in E. acrea cells most of these cores were elongated by at least one terminal N-acetylglucosam...

Hypertension is an important risk factor for atherosclerosis and often occurs in association with diabetes mellitus. Specific activities of hydrolases in homogenates of aortas from rats with renal-clip hypertension, normotension following a period of hypertension, and hypertension combined with streptozotocin-induced diabetes mellitus were measured. Enzymes included: neutral alpha-glucosidase, ...

An improved assay for N-acetyl-/3-o-glucosaminidase activity in urine is described that involves (a) gel filtration to separate the enzyme from inhibitors in urine, (b) enzymic hydrolysis of p-nitrophenyl-N-acetyl-3-D-glucosaminide at pH 4.4, and (C) spectrophotometry of the liberated p-nitrophenylate. Measurements of activity of the enzyme in 58 urine specimens correlated closely (r = 0.9998) ...

An entomopathogenic fungus, Paecilomyces lilacinus, was found to grow on chitosanase-detecting plates. Besides an endo-chitosanase, an exo-β-D-glucosaminidase was purified by cation-exchange chromatography from this microorganism cultivated in M9 minimal media containing 0.5% chitosan as the sole carbon source. The molecular weight of the enzyme is 95kDa; the optimum pH and temperature for acti...