Results 61 to 70 of about 10,369 (237)

Enzyme activity assay for cholesterol 27-hydroxylase in mitochondria

open access: yesJournal of Lipid Research, 2006
Mitochondrial cholesterol 27-hydroxylase (CYP27A1) plays an important role in the maintenance of intracellular cholesterol homeostasis. Cholesterol delivery to the mitochondrial inner membrane is believed to be a rate-limiting step for the “acidic ...
Xiaobo Li   +3 more
doaj   +1 more source

Expression and localization of sterol 27-hydroxylase (CYP27A1) in monkey retina [PDF]

open access: yesExperimental Eye Research, 2006
Sterol 27-hydroxylase (CYP27A1) is a mitochondrial P-450 enzyme with broad substrate specificity for C27 sterols including 7-ketocholesterol (7kCh). CYP27A1 is widely expressed in human tissues but has not been previously demonstrated in the retina.
Jung Wha, Lee   +4 more
openaire   +2 more sources

Hormonal regulation of the human sterol 27-hydroxylase gene CYP27A1 [PDF]

open access: yesBiochemical Journal, 2003
The mitochondrial sterol 27-hydroxylase (CYP27A1) is a multifunctional cytochrome P450 enzyme that catalyses important hydroxylations in the biosynthesis of bile acids and bioactivation of vitamin D3. Previous results [Babiker, Andersson, Lund, Xiu, Deeb, Reshef, Leitersdorf, Diczfalusy and Björkhem (1997) J. Biol. Chem.
Zufan, Araya   +2 more
openaire   +2 more sources

Impaired release of Vitamin D in dysfunctional adipose tissue: New cues on Vitamin D supplementation in obesity [PDF]

open access: yes, 2017
Context: Vitamin D accumulates in adipose tissue (AT) and vitamin D deficiency is frequent in obesity. Objective: We hypothesize that trafficking of vitamin D is altered in dysfunctional AT.
Azzena, Bruno   +9 more
core   +1 more source

Characterisation of the oxysterol metabolising enzyme pathway in mismatch repair proficient and deficient colorectal cancer [PDF]

open access: yes, 2016
ACKNOWLEDGMENTS The immunohistochemistry was performed with the support of the Grampian Biorepository. GRANT SUPPORT Rebecca Swan was supported by the Jean Shanks Foundation.
Alnabulsi, Abdo   +4 more
core   +1 more source

Products of Vitamin D3 or 7-Dehydrocholesterol Metabolism by Cytochrome P450scc Show Anti-Leukemia Effects, Having Low or Absent Calcemic Activity [PDF]

open access: yes, 2010
BACKGROUND. Cytochrome P450scc metabolizes vitamin D3 to 20-hydroxyvitamin D3 (20(OH)D3) and 20,23(OH)2D3, as well as 1-hydroxyvitamin D3 to 1a,20-dihydroxyvitamin D3 (1,20(OH)2D3).
Chen, Tai C.   +12 more
core   +8 more sources

Posttranslational modification by an isolevuglandin diminishes activity of the mitochondrial cytochrome P450 27A1[S]

open access: yesJournal of Lipid Research, 2013
Posttranslational modification by isolevuglandins (isoLGs), arachidonate oxidation products, is an important yet understudied process associated with altered protein properties.
Casey D. Charvet   +4 more
doaj   +1 more source

On the mechanism of accumulation of cholestanol in the brain of mice with a disruption of sterol 27-hydroxylase

open access: yesJournal of Lipid Research, 2010
The rare disease cerebrotendinous xanthomatosis (CTX) is due to a lack of sterol 27-hydroxylase (CYP27A1) and is characterized by cholestanol-containing xanthomas in brain and tendons. Mice with the same defect do not develop xanthomas. The driving force
Ann Båvner   +7 more
doaj   +1 more source

TSPO ligands promote cholesterol efflux and suppress oxidative stress and inflammation in choroidal endothelial cells [PDF]

open access: yes, 2018
Choroidal endothelial cells supply oxygen and nutrients to retinal pigment epithelial (RPE) cells and photoreceptors, recycle metabolites, and dispose of metabolic waste through the choroidal blood circulation.
Bartholomew, Christopher   +4 more
core   +1 more source

Vitamin D: Newer Concepts of Its Metabolism and Function at the Basic and Clinical Level. [PDF]

open access: yes, 2020
The interest in vitamin D continues unabated with thousands of publications contributing to a vast and growing literature each year. It is widely recognized that the vitamin D receptor (VDR) and the enzymes that metabolize vitamin D are found in many ...
Bikle, Daniel D
core   +1 more source

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