Results 1 to 10 of about 14,421 (165)

Favorable effects of Anethum graveolens on liver oxidative stress and cholesterol 7 alpha-hydroxylase levels in non-alcoholic fatty liver disease (NAFLD) rat models [PDF]

open access: goldMetabolism Open, 2021
Background: High-fat high-cholesterol diet induces a phenotype similar to non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) in humans.
Ebrahim Abbasi   +4 more
doaj   +3 more sources

Up to date on cholesterol 7 alpha-hydroxylase (CYP7A1) in bile acid synthesis [PDF]

open access: yesLiver Research, 2020
Cholesterol 7 alpha-hydroxylase (CYP7A1, EC1.14) is the first and rate-limiting enzyme in the classic bile acid synthesis pathway. Much progress has been made in understanding the transcriptional regulation of CYP7A1 gene expression and the underlying ...
John Y.L. Chiang, Jessica M. Ferrell
doaj   +4 more sources

Measurement of cholesterol 7 alpha-hydroxylase activity with selected ion monitoring.

open access: hybridJournal of Lipid Research, 1981
Formation of 7 alpha-hydroxycholesterol by rat liver microsomes was quantitated using a gas chromatograph-mass spectrometer operated in selected ion monitoring mode.
A Sanghvi   +5 more
doaj   +4 more sources

12 alpha-hydroxylase activity in human liver and its relation to cholesterol 7 alpha-hydroxylase activity.

open access: hybridJournal of Lipid Research, 1992
Interruption of the enterohepatic circulation by cholestyramine causes a several-fold increase in bile acid synthesis, reflected in a stimulation of cholesterol 7 alpha-hydroxylase activity; the synthesis of cholic acid being stimulated to a greater ...
K Einarsson   +3 more
doaj   +4 more sources

Cholesterol 7 alpha-hydroxylase: evidence for transcriptional regulation by cholesterol or metabolic products of cholesterol in the rat

open access: hybridJournal of Lipid Research, 1993
Cholesterol 7 alpha-hydroxylase, the rate-determining enzyme in the bile acid biosynthesis pathway, is regulated in a negative feedback manner by hydrophobic bile salts returning to the liver via the portal circulation.
MP Jones   +5 more
doaj   +4 more sources

Expression and purification of human cholesterol 7 alpha-hydroxylase in Escherichia coli.

open access: hybridJournal of Lipid Research, 1994
Cholesterol 7 alpha-hydroxylase (P450c7) is the first and rate-limiting enzyme in bile acid biosynthesis and is the product of a cytochrome P450 gene, CYP7.
W G Karam, J Y Chiang
doaj   +4 more sources

On the saturation of the cholesterol 7 alpha-hydroxylase in human liver microsomes.

open access: hybridJournal of Lipid Research, 1989
The relationships between cholesterol 7 alpha-hydroxylase activity, pool of free microsomal cholesterol, and degree of substrate saturation of the enzyme were studied in untreated (n = 5), cholesterol-fed (n = 4), and cholestyramine-treated (n = 6 ...
K Einarsson, E Reihnér, I Björkhem
doaj   +4 more sources

Effect of dietary cholesterol and taurocholate on cholesterol 7 alpha-hydroxylase and hepatic LDL receptors in inbred mice

open access: hybridJournal of Lipid Research, 1993
Compared to BALB/c mice, inbred C57BL/6 mice are more susceptible to developing fatty streak atherosclerotic lesions when fed a cholesterol-rich diet containing taurocholate. We examined the metabolic basis for the taurocholate requirement.
S Dueland   +5 more
doaj   +4 more sources

Thyroid hormone induction of human cholesterol 7 alpha-hydroxylase (Cyp7a1) in vitro. [PDF]

open access: yesMol Cell Endocrinol, 2014
Thyroid hormone (TH) modulates serum cholesterol by acting on TH receptor β1 (TRβ1) in liver to regulate metabolic gene sets. In rodents, one important TH regulated step involves induction of Cyp7a1, an enzyme in the cytochrome P450 family, which enhances cholesterol to bile acid conversion and plays a crucial role in regulation of serum cholesterol ...
Lammel Lindemann JA   +4 more
europepmc   +4 more sources

Repression of cholesterol 7 alpha-hydroxylase transcription by bile acids is mediated through protein kinase C in primary cultures of rat hepatocytes.

open access: hybridJournal of Lipid Research, 1995
Inhibitors of protein kinases were screened for the ability to prevent the repression of cholesterol 7 alpha-hydroxylase mRNA by taurocholate in primary cultures of adult rat hepatocytes.
R T Stravitz   +3 more
doaj   +2 more sources

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