Results 151 to 160 of about 327,382 (312)

Global Metabolic Shifts in Age and Alzheimer's Disease Mouse Brains Pivot at NAD+/NADH Redox Sites. [PDF]

open access: yes, 2019
Age and Alzheimer's disease (AD) share some common features such as cognitive impairments, memory loss, metabolic disturbances, bioenergetic deficits, and inflammation.
Brewer, Gregory J, Dong, Yue
core  

Sphingosine 1-Phosphate Receptor Modulators and Drug Discovery

open access: yesBiomolecules & Therapeutics, 2017
Initial discovery on sphingosine 1-phosphate (S1P) as an intracellular second messenger was faced unexpectedly with roles of S1P as a first messenger, which subsequently resulted in cloning of its G protein-coupled receptors, S1P1–5.
Soojin Park, D. Im
semanticscholar   +1 more source

Histiocytes: Multifaceted Regulators of Health and Disease

open access: yesVeterinary Clinical Pathology, EarlyView.
ABSTRACT The mononuclear phagocyte system encompasses macrophages, dendritic cells (DCs), and monocytes. Tissue‐resident macrophages and dendritic cells arise during embryogenesis and are replenished either through self‐renewal or by monocytes during inflammation.
Erika J. Gruber
wiley   +1 more source

Antagonizing the S1P-S1P3 Axis as a Promising Anti-Angiogenic Strategy

open access: yesMetabolites
Background: Angiogenesis, the process of new blood vessel formation, is critically regulated by a balance of pro- and anti-angiogenic factors. This process plays a central role in tumor progression and is modulated by tumor cells. Sphingosine-1-phosphate
Sofia Avnet   +7 more
doaj   +1 more source

Mechanisms of sphingosine and sphingosine 1-phosphate generation in human platelets

open access: yesJournal of Lipid Research, 2005
The bioactive molecule sphingosine 1-phosphate (S1P) is abundantly stored in platelets and can be released extracellularly. However, although they have high sphingosine (Sph) kinase activity, platelets lack the de novo sphingolipid biosynthesis necessary
Motohiro Tani   +3 more
doaj   +1 more source

Elevated Circulating Ceramides 18:0 and 24:1 as a Risk Factor for Sarcopenia: In Vitro, Animal, and Clinical Evidence

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 3, June 2026.
ABSTRACT Background Ceramides have garnered considerable attention as pro‐aging bioactive lipids implicated in both metabolic dysfunction and musculoskeletal decline. Among these, C18:0 and C24:1 ceramides may play a role in the pathophysiology of sarcopenia, a key manifestation of age‐related deterioration.
So Jeong Park   +15 more
wiley   +1 more source

Inhibiting sphingosine 1-phosphate lyase: From efficacy to mechanism

open access: yesNeurobiology of Disease
Sphingosine-1 phosphate (S1P) is a lipid metabolite regulating diverse biological processes, including proliferation, differentiation, migration, and apoptosis, highlighting its physiological and therapeutic significance.
Nelson George, Junhua Xiao
doaj   +1 more source

P652The cardioprotective effect of exogenous sphingosine-1-phosphate requires the activation of endogenous sphingosine-1-phosphate via the sphingosine kinase 1 [PDF]

open access: yes, 2017
Purpose: Exogenous administration of sphingosine-1-phosphate (S1P) alone, or as part of high density lipoprotein, protects against myocardial infarction.
Frias, MA   +3 more
core  

Sphingosine‐1‐Phosphate Promotes FOS Activation in Osteosarcoma Under Tumor Acidosis

open access: yesActa Physiologica, Volume 242, Issue 6, June 2026.
ABSTRACT Aim The tumor microenvironment in solid tumors is characterized by extracellular acidosis, which promotes cancer aggressiveness. In osteosarcoma, the most common primary bone cancer, a highly acidic tumor microenvironment is associated with metastasis and poor prognosis, partly due to metabolic rewiring, including changes in lipid pathways ...
Nicolò Bozzini   +9 more
wiley   +1 more source

Inflammatory Mediators Both Directly and Indirectly Promote Microglial Proliferation

open access: yesGlia, Volume 74, Issue 5, May 2026.
– CSF2, IL3, and TNFɑ directly promote microglial proliferation. – Neuron‐secreted factors suppress microglial proliferation. – IL1 cytokines promote CSF2 release from astrocytes, which promotes microglial proliferation. ABSTRACT Microglia—the predominant immune cell of the central nervous system (CNS)—possess an astounding capacity for proliferation ...
Brady P. Hammond   +4 more
wiley   +1 more source

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