This investigation was undertaken to determine prolonged adverse effects of benzalkonium chloride (BzCl), a cationic surfactant, and sodium dodecyl sulfate (SDS), an anionic surfactant, after an initial treatment of and subsequent removal from a primary culture system of rabbit corneal epithelial cells. Metabolic integrity and cell growth were evaluated at specified periods after a 1-hr treatme...

The purpose of this investigation was to determine the antioxidant potentials and anti-glucosidase activities of six tropical medicinal plants. The levels of phenolic constituents in these medicinal plants were also quantified and compared. Antioxidation potentials were determined colorimetrically for scavenging activities against DPPH and NO radicals. Metal chelating assay was based on the mea...

The purpose of this investigation was to determine the antioxidant potentials and anti-glucosidase activities of six tropical medicinal plants. The levels of phenolic constituents in these medicinal plants were also quantified and compared. Antioxidation potentials were determined colorimetrically for scavenging activities against DPPH and NO radicals. Metal chelating assay was based on the mea...

Adults with childhood onset GH deficiency (GHD) have reduced bone mass, increased fat mass, and disorders of lipid metabolism. The aim of the present study was to evaluate bone mineral density (BMD), bone metabolism, body composition, and lipid metabolism in GHD children before and during 2-3 yr of GH treatment (GHRx). Forty children with GHD, mean age 7.9 yr, participated in the study of bone ...

The alpha- and beta-glucosidase activity in natural samples can be readily measured during short incubation times (20 min) by using the artificial substrates 4-methylumbelliferyl-alpha-d-glucoside and 4-methylumbelliferyl-beta-d-glucoside. The apparent K(m) of both alpha- and beta-glucosidase for these respective substrates is 0.01 muM. The homologous disaccharides maltose and cellobiose compet...

the purpose of this investigation was to determine the antioxidant potentials and anti-glucosidase activities of six tropical medicinal plants. the levels of phenolic constituents in these medicinal plants were also quantified and compared. antioxidation potentials were determined colorimetrically for scavenging activities against dpph and no radicals. metal chelating assay was based on the mea...

This study investigates the degradation characteristics, bacterial community structure, and mechanism of rice straw under different levels nitrogen (N) application depths return 1-mature-winter tillage in paddy fields a cold zone from perspective biodegradation by using nylon mesh bag situ culture method. Paludibacteraceae Ruminococcaceae were dominant bacteria process, their abundance decrease...

Usingdifferent conditions for incubation and fluorometry with 4-methylumbelliferylglycosides as substrates, we demonstratedthe presence ofacida-glucosidase, “renal” a-glucosidase, N-acetyl--D-glucosaminidase A, and N-acetyl-f3-o-glucosaminidase B in freshly drawn normal human serum. The acid a-glucosidase enzymatic activity was determined at pH 4.0 in 0.1 mol/L Tris reagent, whereasthe renal is...

Green tea (GT), cranberry (CR), and tart cherry extracts were evaluated for their ability to inhibit yeast α-glucosidase, relevant to glucose uptake. The total phenolic content (TPC), antioxidant activity, and in vitro inhibitory activity of yeast α-glucosidase were examined for the extracts in the present study. GT had higher TPC and antioxidant activity, but CR demonstrated a greater α-glucos...