Results 51 to 60 of about 13,032 (223)

Separation and Determination of Some of the Main Cholesterol-Related Compounds in Blood by Gas Chromatography-Mass Spectrometry (Selected Ion Monitoring Mode)

open access: yesSeparations, 2018
Oxysterols are metabolites produced in the first step of cholesterol metabolism, which is related to neurodegenerative disorder. They can be detected by testing blood, plasma, serum, or cerebrospinal fluid.
Lucia Valverde-Som   +7 more
doaj   +1 more source

A quantitative LC-MS/MS method for analysis of mitochondrial -specific oxysterol metabolism

open access: yesRedox Biology, 2020
Oxysterols are critical regulators of inflammation and cholesterol metabolism in cells. They are oxidation products of cholesterol and may be differentially metabolised in subcellular compartments and in biological fluids.
Khushboo Borah   +8 more
doaj   +1 more source

24(S)-Hydroxycholesterol protects the ex vivo rat retina from injury by elevated hydrostatic pressure [PDF]

open access: yes, 2016
In the central nervous system, 24(S)-hydroxycholesterol (24(S)-HC) is an oxysterol synthesized from cholesterol by cholesterol 24-hydroxylase (CYP46A1) encoded by the cyp46a1 gene.
Ishikawa, Makoto   +3 more
core   +3 more sources

Targeting cholesterol homeostasis to fight hearing loss: a new perspective. [PDF]

open access: yes, 2015
Sensorineural hearing loss (SNHL) is a major pathology of the inner ear that affects nearly 600 million people worldwide. Despite intensive researches, this major health problem remains without satisfactory solutions.
de Medina, Philippe   +3 more
core   +5 more sources

Highly automated nano-LC/MS-based approach for thousand cell-scale quantification of side chain-hydroxylated oxysterols[S]

open access: yesJournal of Lipid Research, 2014
Iso-octyl chain-hydroxylated oxysterols were determined in attomoles per 10,000 cells concentrations in 10,000–80,000 cultured pancreatic adenocarcinoma cells, using a sensitive, highly automated nano-LC-ESI-MS-based method.
Hanne Roberg-Larsen   +9 more
doaj   +1 more source

2-Hydroxypropyl-β-cyclodextrin mitigates pathological changes in a mouse model of retinal cholesterol dyshomeostasis

open access: yesJournal of Lipid Research, 2023
CYP46A1 is a CNS-specific enzyme, which eliminates cholesterol from the brain and retina by metabolism to 24-hydroxycholesterol, thus contributing to cholesterol homeostasis in both organs.
Nicole El-Darzi   +5 more
doaj   +1 more source

The major brain cholesterol metabolite 24(s)-hydroxycholesterol is a potent allosteric modulator of N-methyl-d-aspartate receptors [PDF]

open access: yes, 2013
N-methyl-d-aspartate receptors (NMDARs) are glutamate-gated ion channels that are critical to the regulation of excitatory synaptic function in the CNS.
Belfort, Gabriel M   +11 more
core   +2 more sources

Nuclear Receptors as Therapeutic Targets for Neurodegenerative Diseases: Lost in Translation [PDF]

open access: yes, 2019
Neurodegenerative diseases are characterized by a progressive loss of neurons that leads to a broad range of disabilities, including severe cognitive decline and motor impairment, for which there are no effective therapies.
Codocedo, Juan F.   +3 more
core   +1 more source

Plasma 24S-hydroxycholesterol (cerebrosterol) is increased in Alzheimer and vascular demented patients [PDF]

open access: yesJournal of Lipid Research, 2000
Alzheimer's disease (AD) is characterized by the presence of senile plaques, neurofibrillary tangles, and neuronal cell loss associated with membrane cholesterol release. 24S-hydroxycholesterol (24S-OH-Chol) is an enzymatically oxidized product of cholesterol mainly synthesized in the brain. We tested the hypothesis that plasma levels of this oxysterol
Lütjohann, D.   +10 more
openaire   +4 more sources

Lipid peroxidation biomarkers for evaluating oxidative stress in equine neuroaxonal dystrophy. [PDF]

open access: yes, 2018
BackgroundEquine neuroaxonal dystrophy/equine degenerative myeloencephalopathy (eNAD/EDM) is a neurodegenerative disorder affecting genetically predisposed foals maintained on an α-tocopherol (α-TOH) deficient diet.
Bordbari, Matthew H   +9 more
core  

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