Results 71 to 80 of about 17,936 (215)

Bile Acid Synthesis in Man: Metabolism of 7α-Hydroxycholesterol-14C and 26-Hydroxycholesterol-3H [PDF]

Journal of Clinical Investigation, 1972
The pathways of bile acid synthesis in man were evaluated by studying the metabolism of 7alpha-hydroxycholesterol-4-(14)C and 26-hydroxycholesterol-16, 22-(3)H administered parenterally to individuals requiring external biliary drainage. Techniques for the identification of metabolites were thin-layer chromatography, column chromatography, gas-liquid ...
K E, Anderson, E, Kok, N B, Javitt
openaire   +2 more sources

25-Hydroxycholesterol stimulates sphingomyelin synthesis in Chinese hamster ovary cells.

Journal of Lipid Research, 1995
In several experimental and pathological conditions the cellular concentrations of cholesterol and sphingomyelin (SM) change coordinately. In an effort to identify factors mediating co-regulation, a class of suppressors of cholesterol synthesis ...
N D Ridgway
doaj   +1 more source

Myelin Impairment and Regeneration in the Central Nervous System: Molecular Mechanisms, Diseases, and Prospective Therapeutic Targets

MedComm, Volume 7, Issue 10, October 2026.
Proper myelin formation is crucial for normal neural circuit function, while myelin deficiency can lead to neural circuit dysfunction and cognitive decline, notably in Alzheimer's disease and other central nervous system demyelinating disorders. This review summarizes central myelin's structure and function, demyelination biomarkers and pathological ...
Lihong Huang, Peng Cheng, Guangdong Liu, Yang Xiang, Zhen Hong, Weidong Le   +5 more
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, Volume 600, Issue 17, Page 2526-2546, September 2026.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

In vivo interconversion of 7beta-hydroxycholesterol and 7-ketocholesterol, potential surrogate markers for oxidative stress

, 2007
The oxysterols 7 beta-hydroxycholesterol and 7-ketocholesterol are cholesterol autoxidation products. These two oxysterols are formed as a result of low density lipoprotein oxidation and in a study on biomarkers for oxidative stress in patients with ...
Diczfalusy U., IULIANO, Luigi, Larsson H, Böttiger Y   +3 more
core   +1 more source

Functional Suppression of SCAP Triggers Endoplasmic Reticulum Stress‐Dependent Ferroptosis by Impairing Cholesterol Metabolism in Gastric Cancer

Advanced Science, Volume 13, Issue 52, 18 September 2026.
This study reveals a novel GC therapy targeting cholesterol homeostasis. Inhibiting the SCAP sterol‐sensing domain causes lethal ER stress via cholesterol accumulation, paradoxically forcing continuous synthesis that triggers ferroptosis. The findings link sterol sensing, metabolic dysregulation, and ferroptosis, establishing an anti‐cancer paradigm ...
Qianqian Xu, Guangzhao Pan, Lele Zhang, Xiangliu Chen, Kui Zhang, Yang Lu, Zibo Duan, Aiping Chen, Hailong Shen, Yuxi Zhang, Xiaowu Dong, Jinzhou Huang, Xing Huang, Kai Miao, Qian Hua, Fangfang Tao, Weidong Zhang, Jiang‐Jiang Qin   +17 more
wiley   +1 more source

Associations between serum estradiol and estrone and Alzheimer's disease biomarkers: An analysis in female participants from the European Prevention of Alzheimer's Dementia Longitudinal Cohort Study (EPAD LCS)

Alzheimer's &Dementia, Volume 22, Issue 9, September 2026.
Abstract INTRODUCTION Postmenopausal estrogen decline may contribute to Alzheimer's disease (AD), but evidence linking circulating estrogens to cerebrospinal fluid (CSF) AD biomarkers remains limited. METHODS We analyzed 854 female participants from the European Prevention of Alzheimer's Dementia Longitudinal Cohort Study with baseline serum estradiol ...
Juehyun Shin, Graciela Muniz‐Terrera, Craig W. Ritchie, Jean Manson, Susan Plachecki, Clemens Kirschbaum, Sarah Gregory   +6 more
wiley   +1 more source

Highly sensitive quantification of key regulatory oxysterols in biological samples by LC-ESI-MS/MSs⃞

Journal of Lipid Research, 2009
We describe a highly sensitive and specific method for the quantification of key regulatory oxysterols in biological samples. This method is based upon a stable isotope dilution technique by liquid chromatography-tandem mass spectrometry (LC-MS/MS ...
Akira Honda, Kouwa Yamashita, Takashi Hara, Tadashi Ikegami, Teruo Miyazaki, Mutsumi Shirai, Guorong Xu, Mitsuteru Numazawa, Yasushi Matsuzaki   +8 more
doaj   +1 more source

Serum VIP and IL‐1β Levels Are Associated With Anxiety and Depression in Patients With Parkinson's Disease: A Cross‐Sectional Study

Brain and Behavior, Volume 16, Issue 9, September 2026.
ABSTRACT Background Anxiety and depressive symptoms frequently accompany Parkinson's disease (PD), yet the biological processes underlying these affective complications and their potential peripheral indicators remain incompletely understood. This study evaluated whether circulating concentrations of vasoactive intestinal peptide (VIP), interleukin‐1β (
Liangyu Li, Xiaoyang Jia, Ying Shi, Zexin Yuan, Caoyuan Niu, Yujing Huang, Xiaoli Zhang, Honglei Li, Tiantian Han, Yanji Cui, Pengge Fei, Guihua Wang, Ailing Du   +12 more
wiley   +1 more source

Lipoprotein distribution and biological variation of 24S- and 27-hydroxycholesterol in healthy volunteers

, 2007
24S- and 27-hydroxycholesterol are obligatory intermediates of cholesterol catabolism and play an important role in the maintenance of whole-body cholesterol homeostasis.
Rentsch, K M, Waeber, G, Vollenweider, P, von Eckardstein, A, Burkard, I   +4 more
core   +1 more source