BACKGROUND The need for equivalent results of routine measurement procedures for the alcohol biomarker carbohydrate-deficient transferrin (CDT) has been recognized by the IFCC. This article describes a project to harmonize CDT as conducted by an IFCC working group initiated for this purpose. METHODS We used procedures for achieving harmonization as developed by the Consortium for Harmonizatio...

Bile acid sulfates, formed in human and rat livers, are desulfated by the intestinal microflora. In our study we first isolated from conventional rat feces an unnamed bacterium, termed strain S1, which desulfated the 5 beta-bile salt 3 alpha-sulfates in vitro and in vivo after association with gnotobiotic rats. Strain S1 also possessed 12 alpha-hydroxysteroid dehydrogenase and bile salt-deconju...

Spx is a global transcriptional regulator of the oxidative stress response in Bacillus subtilis. Its target is RNA polymerase, where it contacts the alpha subunit C-terminal domain. Recently, evidence was presented that Spx participates in sulfate-dependent control of organosulfur utilization operons, including the ytmI, yxeI, ssu, and yrrT operons. The yrrT operon includes the genes that funct...

Methionine is critical in amino acid nutrition for chickens, yet details of the flux of Met metabolites in the avian system are lacking. This study explored the interactions among dietary choline (CHO), betaine (BET), and sulfur amino acid levels on growth and hepatic homocysteine (HCY) remethylation. Graded levels (0, 0.07, 0.11, and 0.24%) of DL-Met were added to diets adequate in CHO and def...

Sulphur is one of the essential elements for plant growth. It an important constituent man,y enzymes and amino acids. Photosynthesis nitrogen fixation are attributed to type sulphur linkage present. has been found help synthesis acids hence increase protein content plants, boosting oil content. Today, Sulfur (S) research extended various soils, crops cropping systems different sources sulphur. ...

The biology of the macro-element sulfur (S) is attracting an ever growing attention concerning cell physiology and human health. Sulfur metabolism works at the interplay between genetics and epigenetic as well as in the maintain of cell redox homeostasis. Indeed, unbalanced levels of S compounds in the body are actually under investigation as vulnerability factors and/or indicators of impaired ...

Sedimentary pyrite records are essential for reconstructing paleoenvironmental conditions, but these may be affected by seasonal fluctuations in oxygen concentration and temperature, which can impact bioturbation, sulfide fluxes, distributions of oxidizing microbes (SOMs). To investigate how stress influences surficial (<2 cm) formation, we measured time-series concentrations sulfur isotope (δ3...

Nagai, Susumu (National Women's University, Nara, Japan). Differential reduction of tellurite by growing colonies of normal yeast and respiration-deficient mutants. J. Bacteriol. 90:220-222. 1965.-A differential reduction of sodium tellurite was observed between normal and respiration-deficient mutant colonies of several species of Saccharomyces. Normal colonies turned black in contrast to muta...