Studies on Oligosaccharide Sulfates and Monosaccharide Sulfates for Medical Purposes. II. : Antipeptic and Antiulcerogenic Properties of the Tri, Tetra-Saccharide Sulfates, Monosaccharide Sulfates and Sulfates of its Reduced Products

Bile acid sulfates. II. Formation, metabolism, and excretion of lithocholic acid sulfates in the rat.

Sulfate esterification has been shown previously to be a prominent feature of lithocholate metabolism in man. These studies were undertaken to ascertain whether this metabolic pathway is also present in rats, and to investigate the physiological significance of bile acid sulfate formation. Lithocholic acid-24-(14)C was administered to bile fistula rats, and sulfated metabolites were identified ...

Bioengineered heparins and heparan sulfates.

Heparin and heparan sulfates are closely related linear anionic polysaccharides, called glycosaminoglycans, which exhibit a number of important biological and pharmacological activities. These polysaccharides, having complex structures and polydispersity, are biosynthesized in the Golgi of animal cells. While heparan sulfate is a widely distributed membrane and extracellular glycosaminoglycan, ...

Enzymatic synthesis of steroid sulfates.

De Meio and Lewycka (1) have obtained indirect evidence that conjugation of dehydroisoandrosterone with sulfuric acid occurs in a system consisting of microsome-free supernatant fluid of rat liver, adenosine triphosphate (ATP), and magnesium and sulfate ions. They showed that, following incubation, some of the Zimmermann-positive material remains in the aqueous phase after ether extraction at p...

Sulfates on Mars, a Systematic Raman Spectroscopic Study of Hydration States of Magnesium Sulfates

Introduction: The existence of sulfates at various locations on Mars has been implied by sulfur enrichment and compositional correlations between S and Mg (or Ca in some places) from landed missions including Viking, Pathfinder, and the Mars Exploration Rovers [1-3]. Direct identifications of sulfate minerals have been made by Mössbauer experiments [4] and by OMEGA [5-7]. Abundant water-equival...

D2o Substitution Experiment on Hydrated Iron and Magnesium Sulfates & Its Application for Spectral Interpretation of Martian Sulfates