Results 121 to 130 of about 5,154 (256)
P2Y11 Purinoceptor Mediates the ATP-Enhanced Chemotactic Response of Rat Neutrophils
ATP and hydrolysis products of ATP like adenosine regulate the chemotaxis of neutrophils by activating purinoceptors and adenosine receptors. The present study was designed to examine exogenous ATP, activation of purinoceptors, and activation of A3 ...
Feras Alkayed+5 more
doaj
Abstract Background and Purpose P2X4 receptors (P2X4R) are ligand gated cation channels that are activated by extracellular ATP released by neurons and glia. The receptors are widely expressed in the brain and have fractional calcium currents comparable with NMDA receptors.
Florian Wildner+6 more
wiley +1 more source
P2Y receptors in the mammalian nervous system: pharmacology, ligands and therapeutic potential [PDF]
P2Y receptors for extracellular nucleotides are coupled to activation of a variety of G proteins and stimulate diverse intracellular signaling pathways that regulate functions of cell types that comprise the central nervous system (CNS).
Erb, Laurie+3 more
core +1 more source
P2Y Receptor-Mediated Ca2+ Signaling Increases Human Vascular Endothelial Cell Permeability
We investigated the effects of P2-receptor agonists on cell size, intracellular calcium levels ([Ca2+]i), and permeation of FITC-labeled dextran (FD-4) as well as the relationship between these effects in human umbilical vein endothelial cells (HUVEC ...
Naoko Tanaka+8 more
doaj
Review of: "TLR2 Activation by Porphyromonas gingivalis Requires Both PPAD Activity and Fimbriae" [PDF]
Dongmei Zhang
openalex +1 more source
Sex and size shape the ontogeny of partial migration
This study shows that migratory phenotypic expression—migrant or resident—in a long‐lived, partially‐migrant raptor is associated with interactive effects of age, sex and body size, that the transition to residence is largely directional with age, and that migratory phenotype can have direct fitness consequences. Abstract The arrival‐time hypothesis of
Stephanie Witczak+4 more
wiley +1 more source
Blocking connexin43 hemichannels protects mice against tumour necrosis factor-induced inflammatory shock [PDF]
Upon intravenous injection of tumour necrosis factor (TNF) in mice, a systemic inflammatory response syndrome (SIRS) is initiated, characterized by an acute cytokine storm and induction of vascular hyperpermeability.
Czekaj, Aleksandra+11 more
core +2 more sources
Epsilon-toxin (ETX) is produced by types B and D strains of Clostridium perfringens, which cause fatal enterotoxaemia in sheep, goats and cattle. Previous studies showed that only a restricted number of cell lines are sensitive to ETX and ETX-induced ...
Jie Gao+10 more
doaj +1 more source
Abstract figure legend Schematic diagram summarizing the mechanisms of intracellular Ca2+ oscillations and how they generate the sigh rhythm. The larger blue circle represents the neuron, while the smaller interior green compartment indicates a Ca2+‐sequestering organelle such as the ER.
Daniel S. Borrus+6 more
wiley +1 more source
Cell cycle regulation of astrocytes by extracellular nucleotides and fibroblast growth factor-2 [PDF]
Extracellular ATP enhances the mitogenic activity of fibroblast growth factor-2 (FGF2) in astrocytes, but the molecular mechanism underlying this synergistic interaction is not known.
BF King+54 more
core +2 more sources