Results 31 to 40 of about 23,449 (215)

Lipid levels in sperm, eggs, and during fertilization in Xenopus laevis

open access: yesJournal of Lipid Research, 2008
Critical developmental periods, such as fertilization, involve metabolic activation, membrane fusion events such as sperm-egg or plasma membrane-cortical granule merger, and production and hydrolysis of phospholipids.
Douglas W. Petcoff   +2 more
doaj   +1 more source

Thematic Review Series: Sphingolipids. Nuclear sphingolipids: metabolism and signaling*

open access: yesJournal of Lipid Research, 2008
Sphingolipids are most prominently expressed in the plasma membrane, but recent studies have pointed to important signaling and regulatory roles in the nucleus.
Robert W. Ledeen, Gusheng Wu
doaj   +1 more source

Re-Configuration of Sphingolipid Metabolism by Oncogenic Transformation

open access: yesBiomolecules, 2014
The sphingolipids are one of the major lipid families in eukaryotes, incorporating a diverse array of structural variants that exert a powerful influence over cell fate and physiology. Increased expression of sphingosine kinase 1 (SPHK1), which catalyses
Anthony S. Don   +2 more
doaj   +1 more source

Studies on the hydrophobic properties of sphingomyelinase [PDF]

open access: yesBiochemical Journal, 1981
Crude liver lysosomal sphingomyelinase (EC 3.1.4.12) displays a heterogeneous electrofocusing profile. The majority of the enzyme resolves into two major components with acidic pI values near pH 4.6 and 4.8. Several additional minor peaks of activity are seen at more basic pH values (up to pH 8.0). In the presence of 0.1% Triton X-100 (or Cutscum), the
J W, Callahan   +3 more
openaire   +2 more sources

Ceramide- and ERK-dependent pathway for the activation of CCAAT/enhancer binding protein by interleukin-1β in hepatocytes

open access: yesJournal of Lipid Research, 2005
Interleukin-1β (IL-1β) is a major inducer of liver acute-phase protein expression in response to infection. Several transcription factors, including CCAAT/enhancer binding protein (C/EBP), are known mediators in this process, although the mechanisms by ...
Natalia V. Giltiay   +4 more
doaj   +1 more source

Ceramide as a Target of Marine Triterpene Glycosides for Treatment of Human Myeloid Leukemia

open access: yesMarine Drugs, 2016
Acute myeloid leukemia (AML) is a heterogeneous myeloid clonal disorder exhibiting the accumulation of immature myeloid progenitors in the bone marrow and peripheral blood.
Seong-Hoon Yun   +3 more
doaj   +1 more source

Sphingomyelinase D, a novel probe for cellular sphingomyelin

open access: yesJournal of Lipid Research, 2003
Sphingomyelin (SM) and free cholesterol (FC) are concentrated in the plasma membranes of eukaryotes; however, the physiological significance of their association is unclear.
Papasani V. Subbaiah   +4 more
doaj   +1 more source

Utilizing Sphingomyelinase Sensitizing Liposomes in Imaging Intestinal Inflammation in Dextran Sulfate Sodium-Induced Murine Colitis

open access: yesBiomedicines, 2022
Inflammatory bowel disease (IBD) is characterized by chronic inflammation in the gastrointestinal tract, resulting in severe symptoms. At the moment, the goal of medical treatments is to reduce inflammation. IBD is treated with systemic anti-inflammatory
Tuula Penate Medina   +7 more
doaj   +1 more source

Increased sphingomyelin content impairs HDL biogenesis and maturation in human Niemann-Pick disease type B

open access: yesJournal of Lipid Research, 2006
We previously reported that human Niemann-Pick Disease type B (NPD-B) is associated with low HDL. In this study, we investigated the pathophysiology of this HDL deficiency by examining both HDL samples from NPD-B patients and nascent high density ...
Ching Yin Lee   +8 more
doaj   +1 more source

Secretory sphingomyelinase

open access: yesChemistry and Physics of Lipids, 1999
Several physiologic and pathophysiologic processes in which sphingomyelinases (SMases) have been implicated may involve extracellular sphingomyelin (SM) hydrolysis. A candidate enzyme for these processes is a recently discovered SMase called secretory SMase, or S-SMase.
openaire   +2 more sources

Home - About - Disclaimer - Privacy