Results 31 to 40 of about 234,836 (306)

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

Expression, purification, crystallization and preliminary X-ray diffraction analysis of conjugated bile salt hydrolase from Bifidobacterium longum [PDF]

open access: yes, 1921
Conjugated bile salt hydrolase (BSH) catalyses the hydrolysis of the amide bond that conjugates bile acids to glycine and to taurine. The BSH enzyme from Bifidobacterium longum was overexpressed in Escherichia coli BL21(DE3), purified and crystallized ...
Kumar, R S   +5 more
core   +2 more sources

Development and Validation of a Highly Sensitive LC-MS/MS Method for the Analysis of Bile Acids in Serum, Plasma, and Liver Tissue Samples

open access: yesMetabolites, 2020
Bile acids control lipid homeostasis by regulating uptake from food and excretion. Additionally, bile acids are bioactive molecules acting through receptors and modulating various physiological processes. Impaired bile acid homeostasis is associated with
Cristina Gómez   +4 more
doaj   +1 more source

A proposed nomenclature for bile acids.

open access: yesJournal of Lipid Research, 1992
A proposal is made for a system of nomenclature of the more common unconjugated and conjugated bile acids. Acceptable trivial names for bile acids are tabulated, and guidelines are proposed for using these existing trivial names as roots to create ...
AF Hofmann   +7 more
doaj   +1 more source

Bile acids during pregnancy: Trimester variations and associations with glucose homeostasis

open access: yesHealth Science Reports, 2021
Background and aims Bile acids are known to contribute to hepatic glucose and lipid metabolism regulation. Although glucose homeostasis sustains well‐characterized modifications during uncomplicated pregnancies, changes in bile acids concentrations and ...
Marianne Gagnon   +6 more
doaj   +1 more source

Bile Acids: Major Regulator of the Gut Microbiome

open access: yesMicroorganisms, 2022
Bile acids are synthesized from cholesterol and play an important role in regulating intestinal microflora. The different degrees of hydrophobicity and acidity of individual bile acids may affect their antimicrobial properties.
Chihyeok An   +14 more
doaj   +1 more source

Novel microbially transformed bile acids: Biosynthesis, structure, and function

open access: yesPharmacological Research
The roles of gut microbiota and microbially modified bile acids in human health have become widely recognized. In the last five years, various microbially modified bile acids (e.g., proteinogenic amino-conjugated bile acids, polyamine-conjugated bile ...
Qi Zhao   +3 more
doaj   +1 more source

Regulation of bile acid synthesis in the rat: relationship between hepatic cholesterol 7 alpha-hydroxylase activity and portal bile acids.

open access: yesJournal of Lipid Research, 1995
Bile acid biosynthesis has been believed to be regulated by negative feedback control; however, recent experiments have cast considerable doubts on the concept. The aim of the study was to examine the consensus of the negative feedback regulation of bile
K Fukushima   +6 more
doaj   +1 more source

Intestinal Absorption of Bile Salts

open access: yesCanadian Journal of Gastroenterology, 1990
Bile acids are secreted from the liver into the duodenum where they aid in the digestion and absorption of dietary lipids. Absorption of bile acids occurs through both ionic and nonionic diffusion in the jejunum and colon and through an active sodium ion-
Karen Madsen
doaj   +1 more source

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