Results 71 to 80 of about 1,152 (159)

Serum 24S-hydroxycholesterol and hippocampal size in middle-aged normal individuals

Neurobiology of Aging, 2009
The present study assessed the association between serum 24S-hydroxycholesterol (24S-OH-Chol) and 27-hydroxycholesterol (27-OH-Chol) and hippocampal volumes in 69 middle-aged cognitively normal individuals. Results showed that subjects with high levels of oxysterols had significantly larger hippocampal volumes than subjects with low levels of ...
Koschack, Janka, Luetjohann, Dieter, Schmidt-Samoa, Carsten, Irle, Eva   +3 more
openaire   +3 more sources

Mining for Oxysterols in Cyp7b1^−/− Mouse Brain and Plasma: Relevance to Spastic Paraplegia Type 5

Biomolecules, 2019
Deficiency in cytochrome P450 (CYP) 7B1, also known as oxysterol 7α-hydroxylase, in humans leads to hereditary spastic paraplegia type 5 (SPG5) and in some cases in infants to liver disease.
Anna Meljon, Peter J. Crick, Eylan Yutuc, Joyce L. Yau, Jonathan R. Seckl, Spyridon Theofilopoulos, Ernest Arenas, Yuqin Wang, William J. Griffiths   +8 more
doaj   +1 more source

Novel approaches for drug development against chronic primary pain: A systematic review

British Journal of Pharmacology, EarlyView.
Abstract Chronic primary pain (CPP) persisting for more than 3 months, associated with significant emotional distress without any known underlying cause, is an unmet medical need. Traditional or adjuvant analgesics do not provide satisfactory pain relief for a great proportion of these patients.
Valéria Tékus, Éva Borbély, Andreas Goebel, Ralf Baron, Zsófia Hajna, Zsuzsanna Helyes   +5 more
wiley   +1 more source

Plasma 24S-hydroxycholesterol levels in elderly subjects with late onset Alzheimer's disease or vascular dementia: a case-control study

BMC Neurology, 2011
Background In central nervous system cholesterol cannot be degraded but is secreted into circulation predominantly in the form of its polar metabolite 24(S)-hydroxycholesterol (24S-OH-Chol).
Bonetti Francesco, Zurlo Amedeo, Nora Edoardo, Passaro Angelina, Bosi Cristina, Donnorso Michela, Zuliani Giovanni, Mozzi Alessia F, Cortese Claudio   +8 more
doaj   +1 more source

24S-hydroxycholesterol effects on lipid metabolism genes are modeled in traumatic brain injury. [PDF]

Brain Res, 2010
Membrane damage during traumatic brain injury (TBI) alters the brain homeostasis of cholesterol and other lipids. Cholesterol 24S-hydroxylase (Cyp46) is a cholesterol metabolic enzyme that is increased after TBI. Here, we systematically examined the effects of the enzymatic product of Cyp46, 24S-hydroxycholesterol, on the cholesterol regulatory genes ...
Cartagena CM, Burns MP, Rebeck GW.
europepmc   +4 more sources

Decoding Undesirable Inflammatory Responses of Nucleic Acid‐Delivering Lipid Nanoparticles

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Lipid nanoparticles (LNPs) enable efficient nucleic acid delivery, but their immunogenicity is a double‐edged sword. This review explores LNP‐driven innate and adaptive immunity, covering lipid components, endosomal escape, and nucleic acid sensing.
Ruimin Hu, Yin Dou, Chenwen Li, Yuying Mu, Huiying Ouyang, Wenhao Shen, Jianxiang Zhang   +6 more
wiley   +1 more source

Crossing the barrier: net flux of 27-hydroxycholesterol into the human brain

Journal of Lipid Research, 2005
Side chain oxidizedoxysterols have a unique ability to traverse lipophilic membranes. We tested thehypothesis that there is a net flux of 27-hydroxycholesterol from the circulationinto the brain using plasma samples collected from the internal jugular ...
Maura Heverin, Steve Meaney, Dieter Lütjohann, Ulf Diczfalusy, John Wahren, Ingemar Björkhem   +5 more
doaj   +1 more source

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

Redox 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, Olivia J. Rickman, Nikol Voutsina, Isaac Ampong, Dan Gao, Emma L. Baple, Irundika HK. Dias, Andrew H. Crosby, Helen R. Griffiths   +8 more
doaj   +1 more source

Metabolic Fingerprinting of Urine Reveals Metabolite Changes in Women With Breast Cancer

Cancer Medicine, Volume 15, Issue 6, June 2026.
This study uses metabolomics to compare urine, plasma and serum metabolite profiles across breast cancer, benign breast disease, symptomatic and healthy controls. Significant metabolic differences—especially in amino acids—were found between BC and other groups, with moderate correlations across biofluids, suggesting potential for non‐invasive BC ...
Nur Aimi Aliah Zainurin, Anuradha U. K. H. Bambarandhage, Michelle Moreno Escalona, Dimitra Ivanova, Tim Gate, Helen Tench, Manfred Beckman, Helen Phillips, Mandana Pennick, Luis A. J. Mur   +9 more
wiley   +1 more source

Levels of 7-oxocholesterol in cerebrospinal fluid are more than one thousand times lower than reported in multiple sclerosis

Journal of Lipid Research, 2005
In a recent publication [Diestel, A., O. Aktas, D. Hackel, I. Häke, S. Meier, C. S. Raine, R. Nitsch, F. Zipp, and O. Ullrich. 2003. Activation of microglial poly (ADP-ribose)-polymerase-1 by cholesterol breakdown products during neuroinflammation: a ...
Valerio Leoni, Dieter Lütjohann, Thomas Masterman   +2 more
doaj   +1 more source