Results 41 to 50 of about 130,183 (288)

Synthesis and Structure-Activity Relationships of Pyridoxal-6-arylazo-5'-phosphate and Phosphonate Derivatives as P2 Receptor Antagonists. [PDF]

open access: yes, 1998
Novel analogs of the P2 receptor antagonist pyridoxal-5'-phosphate-6-phenylazo-2',4'-disulfonate (PPADS) were synthesized. Modifications were made through functional group substitution on the sulfophenyl ring and at the phosphate moiety through the ...
Boyer, José L.   +13 more
core   +3 more sources

Dual Role of P2 Receptors during Osteoblast Differentiation [PDF]

open access: yes, 2015
P2 receptors activated by ATP are expressed in the skeletal system. However, the role of P2 receptors in osteoblast differentiation remains unclear. Methods: Participation of P2 receptors in differentiation was investigated in the preosteoblast MC3T3-M1 ...
Alvarenga, Erika Costa   +4 more
core   +1 more source

P2 receptor mRNA expression profiles in human lymphocytes, monocytes and CD34+ stem and progenitor cells

open access: yesBMC Immunology, 2004
Background Extracellular nucleotides (ATP, ADP, UTP and UDP) exert a wide range of biological effects in blood cells mediated by multiple ionotropic P2X receptors and G protein-coupled P2Y receptors.
Bengtsson Anders   +3 more
doaj   +1 more source

Identification of atropine-and P2X1 receptor antagonist-reistant, neurogenic contractions of the urinary bladder [PDF]

open access: yes, 2007
Acetylcholine and ATP are excitatory cotransmitters in parasympathetic nerves. We used P2X1 receptor antagonists to further characterize the purinergic component of neurotransmission in isolated detrusor muscle of guinea pig urinary bladder.
Gallagher, Gemma   +3 more
core   +1 more source

Expression of P2 receptors in human B cells and Epstein-Barr virus-transformed lymphoblastoid cell lines

open access: yesBMC Immunology, 2006
Background Epstein-Barr virus (EBV) infection immortalizes primary B cells in vitro and generates lymphoblastoid cell lines (LCLs), which are used for several purposes in immunological and genetic studies. Purinergic receptors, consisting of P2X and P2Y,
Kim Jun Woo   +4 more
doaj   +1 more source

Sympathetic nerve-derived ATP regulates renal medullary vasa recta diameter via pericyte cells: a role for regulating medullary blood flow? [PDF]

open access: yes, 2013
Pericyte cells are now known to be a novel locus of blood flow control, being able to regulate capillary diameter via their unique morphology and expression of contractile proteins.
Crawford, C.   +4 more
core   +2 more sources

Purinergic Signaling in Liver Pathophysiology

open access: yesFrontiers in Endocrinology, 2021
Extracellular nucleosides and nucleotides activate a group of G protein-coupled receptors (GPCRs) known as purinergic receptors, comprising adenosine and P2Y receptors. Furthermore, purinergic P2X ion channels are activated by ATP.
Shanu Jain, Kenneth A. Jacobson
doaj   +1 more source

Extracellular ATP drives systemic inflammation, tissue damage and mortality [PDF]

open access: yes, 2014
Systemic inflammatory response syndromes (SIRS) may be caused by both infectious and sterile insults, such as trauma, ischemia-reperfusion or burns. They are characterized by early excessive inflammatory cytokine production and the endogenous release of ...
Brouckaert, Peter   +4 more
core   +1 more source

Increased ATP release and CD73-mediated adenosine A2A receptor activation mediate convulsion-associated neuronal damage and hippocampal dysfunction

open access: yesNeurobiology of Disease, 2021
Extracellular ATP is a danger signal to the brain and contributes to neurodegeneration in animal models of Alzheimer's disease through its extracellular catabolism by CD73 to generate adenosine, bolstering the activation of adenosine A2A receptors (A2AR).
Elisabete Augusto   +11 more
doaj   +1 more source

Extracellular ATP Mediates Cancer Cell Migration and Invasion Through Increased Expression of Cyclooxygenase 2

open access: yesFrontiers in Pharmacology, 2021
The tumor microenvironment plays a major role in the ability of the tumor cells to undergo metastasis. A major player of tumors gaining metastatic property is the inflammatory protein, cyclooxygenase 2 (COX-2).
Shilpa Sharma   +2 more
doaj   +1 more source

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