BACKGROUND/AIMS Little is known about the anti-colitis effect of tryptophan or its metabolites. Here, the protective effect and its mechanism of tryptophan administration on dextran sulfate sodium -induced colitis in mice was studied. MATERIALS AND METHODS Twenty C57black6 female mice were equally divided into the control group, and treatment group. The control group received a standard CE-2 ...

Release of different heavy metals from various industries is a significant environmental hazard worldwide. In order to reduce the threat these chemicals, treatment methods are needed make them harmless. This study approaches problem by examining effect gypsum content for immobilization selenium oxyanions selenite and selenate, sulfate, with calcium sulfoaluminate belite (CSAB) cement-based ettr...

in an environmentally benign solventless system, aldehydes and ketones were readily converted to their corresponding azines with hydrazine sulfate, sodium hydroxide and alumina in high yield.

PURPOSE This in vitro experiment studied the effects of sodium bicarbonate and hydrogen peroxide on the cariogenic bacteria Streptococcus mutans through analysis with a spectrophotometer. METHODS The growth of S. mutans was analyzed using seven different environments. Twelve wells in each of the seven rows of a multi-well plate were used to incubate the test materials. In combinations of 10 m...

Calcium phosphate chemical conversion coatings with the additions of sodium lauryl sulfate (SLS) and dodecanesulfonic acid (DSS), respectively, were prepared on surface Mg-8Li alloy. The cross-sectional corrosion morphologies, compositions, behavior coated surfaces in 3.5 wt.% NaCl solution respectively investigated by using a scanning electron microscope (SEM), energy dispersive spectrometer (...

THE ASYMMETRIC UNIT OF THE TITLE COMPOUND [SYSTEMATIC NAME: (R,R)-2,4-bis-(4-hydroxy-phen-yl)-N,N'-dimethyl-3-oxapentane-1,5-diammonium bis-(hydrogen sulfate)], C(18)H(26)N(2)O(3) (2+)·2HSO(4) (-), contains one half-cation and one hydrogen sulfate anion. The cation has crystallographically imposed twofold symmetry with the rotation axis passing through the central ether O atom. Hydrogen bonds b...

The rates of oxidation of Fe(II) by H(2)O(2) in the presence of sodium perchlorate, sodium nitrate, sodium chloride and sodium sulfate salts (0-1M) have been compared in the study. Experiments were carried out in a batch reactor, in the dark, at pH <3, 25+/-0.5 degrees C and at controlled ionic strength (< or =1M). The experimental results showed that the rates of oxidation of Fe(II) in the pre...