Results 31 to 40 of about 33,787 (250)

Regulation of bile acid synthesis. IV. Interrelationship between cholesterol and bile acid biosynthesis pathways.

Journal of Lipid Research, 1990
Under most experimental conditions, the activities of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA reductase) and cholesterol 7 alpha-hydroxylase, change together in parallel directions.
WM Pandak, DM Heuman, PB Hylemon, ZR Vlahcevic   +3 more
doaj   +1 more source

Regulation of 3β-Hydroxysteroid Dehydrogenase/∆5-∆4 Isomerase: A Review [PDF]

, 2013
This review focuses on the expression and regulation of 3β-hydroxysteroi ddehydrogenase/Δ5-Δ4 isomerase (3β-HSD), with emphasis on the porcine version. 3β-HSD is often associated with steroidogenesis, but its function in the metabolism of both steroids ...
Abbaszade, Banner, Belanger, Beltowski, Benton, Berchtold, Bo Ekstrand, Brunius, Catalfo, Chapman, Chedrese, Chen, Chen, Cherradi, Clark, Coniglio, Conley, Conley, Conley, Cooke, Couet, Coulter, Cue, Davis, De Launoit, Doran, Doran, Dorgan, Dupont, Fink-Gremmels, Furster, Furster, Galarreta, Galia Zamaratskaia, Garrett, Garrett, Gingras, Gingras, Gromadzka-Ostrowska, Haider, Hassan, Havelock, Headon, Hierlihy, Hild-Petito, Hoog, Hu, Joernvall, Kallberg, Kaynard, Keeney, Keeney, Kershaw, Kiessling, Kostic, Kozlowska, Kumar, Labelle-Dumais, Labrie, LaVoie, Leers-Sucheta, Li, Liang, Lorence, Majdic, Martin, Martin Rasmussen, Mason, Mason, Matsunaga, Mcallister, Meadus, Mizrachi, Mode, Mullany, Nakajin, Nakamura, Naville, Nicolau-Solano, Papacleovoulou, Park, Payne, Payne, Payne, Pelletier, Penning, Picon, Rasmussen, Rasmussen, Rasmussen, Rasmussen, Saez, Samuels, Sasano, Sauer, Shapiro, Siiteri, Simard, Simard, Sirianni, Sordoillet, Stayrook, Sun, Suzuki, Takikawa, Takikawa, Tang, The, Tomankova, Tremblay, Val, Von Teichman, Walstra, Wang, Waxman, Waxman, Wong, Yuan, Zamaratskaia, Zamaratskaia, Zhao, Zinedine   +121 more
core   +2 more sources

Cloning and regulation of cholesterol 7 alpha-hydroxylase, the rate-limiting enzyme in bile acid biosynthesis.

Journal of Biological Chemistry, 1990
The rate-limiting step in bile acid biosynthesis is catalyzed by the microsomal cytochrome P-450 cholesterol 7 alpha-hydroxylase (7 alpha-hydroxylase).
D. Jelinek, S. Andersson, C. Slaughter, David W. Russell   +3 more
semanticscholar   +1 more source

Regulation of bile acid synthesis. Measurement of cholesterol 7 alpha-hydroxylase activity in rat liver microsomal preparations in the absence of endogenous cholesterol

Journal of Lipid Research, 1981
A rapid procedure was developed to measure hepatic cholesterol 7 alpha-hydroxylase activity in the absence of endogenous microsomal cholesterol. This method involves the preparation of an acetone powder from the microsomal fraction of rat liver that ...
S Shefer, F W Cheng, S Hauser, A K Batta, G Salen   +4 more
doaj   +1 more source

Dietary cholesterol and downregulation of cholesterol 7 alpha-hydroxylase and cholesterol absorption in African green monkeys. [PDF]

Journal of Clinical Investigation, 1994
In this study, hepatic production of bile acid was considered together with intestinal cholesterol absorption as potential regulatory sites responsive to dietary cholesterol. Sequential liver biopsies were taken from 45 feral African green monkeys studied during three different diet periods.
L, Rudel, C, Deckelman, M, Wilson, M, Scobey, R, Anderson   +4 more
openaire   +2 more sources

The pool of free cholesterol is not of major importance for regulation of the cholesterol 7 alpha-hydroxylase activity in rat liver microsomes.

Journal of Lipid Research, 1987
The relationship between the cholesterol 7 alpha-hydroxylase activity and the pool of free cholesterol in rat liver microsomes was studied under experimental conditions aimed to stimulate (biliary drainage, cholestyramine treatment, and lymphatic ...
K Einarsson, J E Akerlund, I Björkhem
doaj   +1 more source

Studies on the regulation of cholesterol 7 alpha-hydroxylase and HMG-CoA reductase in rat liver: effects of lymphatic drainage and ligation of the lymph duct.

Journal of Lipid Research, 1990
Lymphatic drainage leads to a significant stimulation of both the cholesterol 7 alpha-hydroxylase and HMG-CoA reductase activity in rats (Björkhem et al. 1978. Biochem. Biophys. Res. Commun. 85: (532-540).
JE Akerlund, I Björkhem
doaj   +1 more source

Synergistic interaction of fatty acids and oxysterols impairs mitochondrial function and limits liver adaptation during nafld progression [PDF]

, 2018
The complete mechanism accounting for the progression from simple steatosis to steatohepatitis in nonalcoholic fatty liver disease (NAFLD) has not been elucidated.
Avolio, Carlo, Bellanti, Francesco, Blonda, Maria, di Bello, Giorgia, Facciorusso, Antonio, Iannelli, Giuseppina, Iuliano, Luigi, Poli, Giuseppe, Serviddio, Gaetano, Tamborra, Rosanna, Vendemiale, Gianluigi, Villani, Rosanna   +11 more
core   +2 more sources

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

Journal 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, Z R Vlahcevic, E C Gurley, P B Hylemon   +3 more
doaj   +1 more source

Subverting sterols: rerouting an oxysterol-signaling pathway to promote tumor growth. [PDF]

, 2013
Oxysterols are oxidized derivatives of cholesterol that are generated enzymatically or through autoxidation. Initially identified as important lipid signaling molecules in the context of atherosclerosis and inflammation, accumulated evidence indicates ...
Bensinger, Steven J, York, Autumn G
core   +1 more source