Results 281 to 290 of about 714,164 (340)

Glucocorticoid-Induced Alterations of Renal Sulfate Transport

The Journal of Pharmacology and Experimental Therapeutics, 2000
Glucocorticoid administration decreases renal sodium/phosphate cotransport in the proximal tubule due to a down-regulation of the sodium/phosphate cotransporter but has no effect on the sodium-dependent transport of glucose or proline. The objectives of the present investigation were to determine the effects of the glucocorticoid methylprednisolone ...
K, Sagawa, I M, Darling, H, Murer, M E, Morris   +3 more
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[1] Sulfate transport

1994
Publisher Summary This chapter describes sulfate transport in microorganisms. It discusses uptake experiments with whole cells of dissimilatory sulfate-reducing bacteria (SRB). The performance of an assimilatory sulfate uptake system requires effective uptake of sulfate to secure biosynthesis.
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Transport of sulfate in the rabbit's brain

Journal of Neurobiology, 1973
AbstractThe possibility that, in the rabbit, sulfate is actively transported across the choroid plexuses was investigated by ventriculo‐cisternal perfusion in the absence and presence of carrier. No evidence for this could be found.Penetration of sulfate from blood to brain and CSF was measured in the intact animal equilibration was very slow ...
J G, Hollingsworth, H, Davson
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Reconstitution of lysosomal sulfate transport in proteoliposomes

Biochimica et Biophysica Acta (BBA) - General Subjects, 1995
As part of a strategy to purify the lysosomal sulfate transporter, we developed a method for reconstitution of transport in artificial membrane vesicles. Lysosomal membranes were prepared from Percoll density gradient purified rat liver lysosomes and membrane proteins were solubilized using the non-ionic detergent, Triton X-100.
P J, Koetters, H F, Chou, A J, Jonas
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Identification of a Mammalian Brain Sulfate Transporter

Biochemical and Biophysical Research Communications, 1999
Sulfate is an essential anion involved in many biosynthetic and pharmacological reactions. Sulfate is an important constituent of myelin membranes in the brain; however, very little is known as to how sulfate enters brain cells. In this study, our aim was to determine whether the mammalian brain possesses a sulfate transporter.
Lee, Aven, Beck, Laurent, Brown, Richard J., Markovich, Daniel   +3 more
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Rapid Axonal Transport of Sulfated Mucopolysaccharide Proteins

Science, 1970
When sulfur-35-labeled sodium sulfate is injected intraocularly in the goldfish, labeled sulfated mucopolysaccharides rapidly appear in the contralateral optic tectum of the brain, demonstrating the axonal flow of sulfated mucopolysaccharides. The transport rate is the same as that observed for proteins labeled after intraocular injection of tritiated ...
J S, Elam, J M, Goldberg, N S, Radin, B W, Agranoff   +3 more
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Ibuprofen-Induced Changes in Sulfate Renal Transport

The Journal of Pharmacology and Experimental Therapeutics, 1998
Nonsteroidal anti-inflammatory drugs (NSAIDs) increase sulfate renal clearance and decrease the fractional reabsorption of sulfate by the kidneys. The mechanism of this alteration of inorganic sulfate homeostasis is unknown. The objectives of this study were 1) to investigate if sulfate renal transport is altered in isolated membrane vesicles after ...
K, Sagawa, L J, Benincosa, H, Murer, M E, Morris   +3 more
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Effects of sulfation patterns on intestinal transport of bile salt sulfate esters

American Journal of Physiology-Gastrointestinal and Liver Physiology, 1980
The absorption of 14C-labeled 3 alpha-, the 7 alpha- and the 3 alpha,7 alpha-sulfate esters of taurochenodeoxycholate by guinea pig small intestine was studied using in vivo and in vitro preparations. In vivo ileal perfusions showed that sulfation markedly decreased uptake by the ileal bile salt transport system and that the position and number of the
E H, De Witt, L, Lack
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Energization of sulfate transport in yeast

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1981
Abstract Sulfate uptake by Saccharomyces cerevisiae is stimulated about 12-fold by preincubation of cells with 1% d -glucose or 1% ethanol. The K T remains unchanged (0.34–0.38 mM), the J mar increase from 18–20 to 195–230 and 170–185 nmol/min per g dry wt., respectively, after glucose and ethanol preincubation.
J. Horák, L. Říhová, A. Kotyk
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Kinetics of sulfate transport by Penicillium notatum. Interactions of sulfate, protons, and calcium

Biochemistry, 1975
The active transport of inorganic sulfate by an ATP sulfurylase-negative strain of Penicillium notatum is promoted by H+ ions and metal ions (divalent metal ions being more effective than monovalent metal ions). Initial velocity studies suggest that H+ and SO4(2-) add to the carrier in an ordered sequence (H+ before SO4(2-)), with H+ at equilibrium ...
J, Cuppoletti, I H, Segel
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