Results 81 to 90 of about 62,442 (260)

Chromatin-associated sphingomyelin: Metabolism in relation to cell function

open access: yes, 2003
After the first histochemical demonstration by Chayen and Gahan of the presence of phospholipids and especially of sphingomyelin in chromatin, this became the object of long debate and of contradictory results.
ALBI, Elisabetta, Magni, M. P. Viola
core   +1 more source

Relationship Between Plasma Acid Sphingomyelinase and Alteration in Taste and Smell as Indicator of Long COVID in Pregnant Women

open access: yesReports
Background: Persistent alterations in taste and smell affect a significant proportion of individuals following COVID-19, representing a component of post-acute COVID-19 syndrome, commonly referred to as long COVID.
Federico Fiorani   +11 more
doaj   +1 more source

Quantification of major classes of Xenopus phospholipids by high performance liquid chromatography with evaporative light scattering detection

open access: yesJournal of Lipid Research, 2000
Lipid signaling has become a major research area of cell biology and there is a need for methods that accurately and easily measure substrates and products of lipases involved in cell signaling.
Bradley J. Stith   +5 more
doaj   +1 more source

Interaction of cholesterol with sphingosine

open access: yesJournal of Lipid Research, 2005
Molecular associations between sphingomyelin and cholesterol provide a molecular basis for the colocalization of these lipids in plasma membrane microdomains (lipid rafts) and for the inhibitory effect of sphingomyelin on the intestinal absorption of ...
Nicolas Garmy   +3 more
doaj   +1 more source

Single‐Cell Transcriptomic Profiling Identifies B Cell‐Intrinsic Dysregulation of Sphingolipid Biosynthesis and Could Be Improved by Inhibiting UGCG in Primary Immune Thrombocytopenia

open access: yesAdvanced Science, EarlyView.
This study generates the single‐cell atlas of pathogenic B‐cell subset Bc‐5 in ITP. It identifies RUNX3 as a key survival regulator and uncovers sphingolipid‐driven metabolic reprogramming, validating UGCG inhibition as a therapeutic candidate and building a valuable resource for ITP mechanistic and therapeutic exploration.
Dongmei Luo   +10 more
wiley   +1 more source

Phosphatidylcholine/sphingomyelin metabolism crosstalk inside the nucleus

open access: yes, 2008
International audienceIt is known that the phospholipids represent a "minor component" of chromatin. Recently it has been highlighted that these lipids are metabolised directly inside the nucleus thanks to the presence of the enzymes related to their ...
Lazzarini, Remo   +2 more
core   +1 more source

Biosynthesis and metabolic degradation of sphingolipids not containing sialic acid

open access: yesJournal of Lipid Research, 1972
Interest in sphingolipid metabolism has increased rapidly during the past decade, and many of the steps involved in the biosynthesis and metabolic degradation of sphingolipids are now known. In this review these studies are critically exmined.
Pierre Morell, Peter Braun
doaj   +1 more source

USP4‐Dependent CHAF1B Stabilization Regulates Distinct SETDB1 Ubiquitin States Linked to AKT T308 Signaling and Lipogenic Remodeling in HCC

open access: yesAdvanced Science, EarlyView.
USP4 stabilizes CHAF1B by limiting K48‐linked ubiquitination. Stabilized CHAF1B supports UHRF1‐associated K63‐linked SETDB1 ubiquitination and cytoplasmic redistribution, whereas CHAF1B loss favors VHL‐dependent K11‐associated degradative ubiquitination and proteasomal loss of SETDB1.
Saiyan Bian   +9 more
wiley   +1 more source

Sphingolipid profiling reveals differential functions of sphingolipid biosynthesis isozymes of Caenorhabditis elegans

open access: yesJournal of Lipid Research
Multiple isozymes are encoded in the Caenorhabditis elegans genome for the various sphingolipid biosynthesis reactions, but the contributions of individual isozymes are characterized only in part. We developed a simple but effective reversed-phase liquid
Hui Luo   +6 more
doaj   +1 more source

Lipid Metabolic Dysregulation Driven by OSMR Mutations Underlies Amyloidogenesis in Primary Localized Cutaneous Amyloidosis

open access: yesAdvanced Science, EarlyView.
OSMR mutations disrupt STAT5 signaling and AKR1B10‐mediated lipid metabolism, leading to lipid accumulation and protein aggregation in keratinocytes. This metabolic reprogramming drives amyloid deposition in primary localized cutaneous amyloidosis, revealing a mechanistic link between lipid dysregulation and amyloidogenesis.
Huiting Liu   +8 more
wiley   +1 more source

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