Results 11 to 20 of about 139,449 (267)

Identification of unconjugated bile acids in human bile.

open access: yesJournal of Lipid Research, 1990
Unconjugated bile acids in the bile of healthy and diseased humans were determined qualitatively and quantitatively by means of gas-liquid chromatography and gas-liquid chromatography-mass spectrometry, after their isolation by ion-exchange ...
N Matoba, M Une, T Hoshita
doaj   +1 more source

Analysis of metabolic profiles of bile acids in urine using a lipophilic anion exchanger and computerized gas-liquid chromatorgaphy-mass spectrometry

open access: yesJournal of Lipid Research, 1977
A method is described for quantitative analysis of bile acids in urine. Urine is acidified and bile acids are extracted on an Amberlite XAD-2 column.
B Almé   +3 more
doaj   +1 more source

Cholestasis impairs gut microbiota development and bile salt hydrolase activity in preterm neonates

open access: yesGut Microbes, 2023
Cholestasis refers to impaired bile flow from the liver to the intestine. In neonates, cholestasis causes poor growth and may progress to liver failure and death.
Lauren E. Lynch   +7 more
doaj   +1 more source

Fasting levels of monoketonic bile acids in human peripheral and portal circulation

open access: yesJournal of Lipid Research, 1982
It has been suggested that large amounts of ketonic bile acids may be present in portal venous blood. We have therefore determined the approximate concentration of 3-oxo-, 7-oxo-, and 12-oxo-bile acids (monoketonic bile acids) in human peripheral and ...
I Björkhem   +3 more
doaj   +1 more source

Bile salts of vertebrates: structural variation and possible evolutionary significance[S]

open access: yesJournal of Lipid Research, 2010
Biliary bile salt composition of 677 vertebrate species (103 fish, 130 reptiles, 271 birds, 173 mammals) was determined. Bile salts were of three types: C27 bile alcohols, C27 bile acids, or C24 bile acids, with default hydroxylation at C-3 and C-7.
Alan F. Hofmann   +2 more
doaj   +1 more source

Characterization of the adsorption of conjugated and unconjugated bile acids to insoluble, amorphous calcium phosphate.

open access: yesJournal of Lipid Research, 1994
Recently we showed that supplemental dietary calcium stimulates the intestinal formation of insoluble calcium phosphate and decreases the ratio of dihydroxy to trihydroxy bile acids in human duodenal bile. Because previous in vitro studies indicated that
M J Govers   +3 more
doaj   +1 more source

Hepatic bile acid uptake: effect of conjugation, hydroxyl and keto groups, and albumin binding

open access: yesJournal of Lipid Research, 1982
Hepatic extraction of trihydroxy (free, glyco- and tauro-conjugated) dihydroxy, and monohydroxy bile acids has been evaluated in single pass liver perfusion experiments in rats.
R Aldini   +5 more
doaj   +1 more source

Bile acids. LXVII. The major bile acids of Varanus monitor

open access: yesJournal of Lipid Research, 1982
The major bile acids of gall bladder bile of Varanus monitor have been separated by thin-layer chromatography and shown to be derivatives of taurine.
S S Ali, E Stephenson, W H Elliott
doaj   +1 more source

Review: microbial transformations of human bile acids

open access: yesMicrobiome, 2021
Bile acids play key roles in gut metabolism, cell signaling, and microbiome composition. While the liver is responsible for the production of primary bile acids, microbes in the gut modify these compounds into myriad forms that greatly increase their ...
Douglas V. Guzior, Robert A. Quinn
doaj   +1 more source

Profiling of Urinary Glucuronidated Bile Acids across Age Groups

open access: yesMetabolites, 2022
We investigated the age-dependent changes in urinary excretion of glucuronidated bile acids at the C-3 position. Bile acid 3-glucuronides accounted for 0.5% of urinary bile acids in neonates, and the proportion of bile acid 3-glucuronides plateaued at 1 ...
Yamato Muto   +6 more
doaj   +1 more source

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