Results 81 to 90 of about 45,726 (286)

Polydatin alleviates mitochondrial damage and apoptosis of lung epithelial cells by inhibiting toll‐like receptor 4‐dependent macrophage activation in asthma

open access: yesAnimal Models and Experimental Medicine, EarlyView.
The alleviation of asthma by polydatin is dependent on the blockage of the toll‐like receptor 4 (TLR4)/P2X7R synergy in macrophages. The blockage of the TLR4/P2X7R synergy results in decreased release and secretion of interleukin‐1β (IL‐1β) and IL‐18. In epithelial cells, low IL‐1β and IL‐18 levels inhibit mitochondrial damage and apoptosis.
Guangxing Li   +9 more
wiley   +1 more source

Purinergic Signaling in Liver Disease [PDF]

open access: yesDigestive Diseases, 2014
Adenosine triphosphate (ATP) is essential for the myriad of metabolic processes upon which life is based and is known widely as the universal energy currency unit of intracellular biologic reactions. ATP, adenosine diphosphate, adenosine, as well as other purines and pyrimidines also serve as ubiquitous extracellular mediators which function through ...
Byron P, Vaughn   +2 more
openaire   +2 more sources

Purinergic Signalling in the Cochlea

open access: yesInternational Journal of Molecular Sciences, 2022
The mammalian cochlea is the sensory organ of hearing with a delicate, highly organised structure that supports unique operating mechanisms. ATP release from the secretory tissues of the cochlear lateral wall (stria vascularis) triggers numerous physiological responses by activating P2 receptors in sensory, supporting and neural tissues.
Srdjan M. Vlajkovic, Peter R. Thorne
openaire   +2 more sources

Long-term (trophic) purinergic signalling: purinoceptors control cell proliferation, differentiation and death [PDF]

open access: yes, 2010
The purinergic signalling system, which uses purines and pyrimidines as chemical transmitters, and purinoceptors as effectors, is deeply rooted in evolution and development and is a pivotal factor in cell communication.
A Gartland   +139 more
core   +2 more sources

Endogenous Repair in Vanishing White Matter

open access: yesAnnals of Neurology, EarlyView.
Objective Vanishing white matter is a leukodystrophy with remarkable regional variation in disease severity. The cerebral and cerebellar white matter chronically degenerates, while stress‐induced episodes of rapid neurological deterioration coincide with the appearance of acute focal lesions in the deep gray structures and brainstem.
Bonnie C. Plug   +7 more
wiley   +1 more source

Highlights in Purinergic Signalling [PDF]

open access: yesPurinergic Signalling, 2009
It has become increasingly clear that receptors and ion channels in the plasma membrane do not exist and function in isolation, but instead form complexes with other proteins and this can modify their expression and activity. In this study, the authors determined which proteins complex with the P2X2 receptor and characterised the influence of one ...
openaire   +3 more sources

Hypoxia induces purinergic receptor signaling to disrupt endothelial barrier function [PDF]

open access: gold, 2022
Somasundaram Raghavan   +3 more
openalex   +1 more source

Prothrombotic Activation of Platelet Pannexin‐1 Channels in Antiphospholipid Syndrome

open access: yesArthritis &Rheumatology, EarlyView.
Objective ATP is released from platelets through both degranulation and pannexin‐1 (PANX1) channels. ATP then activates P2X receptors to amplify platelet activation via calcium‐dependent signaling. The objective of this study was to evaluate the role of platelet PANX1 channels in the pathophysiology of antiphospholipid syndrome (APS), an acquired ...
Bruna de Moraes Mazetto Fonseca   +13 more
wiley   +1 more source

[Purinergic signals].

open access: yesMedicina, 2010
In the last decade evidence accumulated that nucleosides and nucleotides of both uridine and adenine can act as extracellular signaling factors. Their action is mediated by two main types of surface receptors commonly known as purinergic. P1 receptors are metabotropic and activated by adenosine, whereas receptors for nucleotides (ATP, ADP, UTP and UDP)
Eduardo R, Lazarowski   +1 more
openaire   +1 more source

Multifaceted Effects of Extracellular Adenosine Triphosphate and Adenosine in the Tumor–Host Interaction and Therapeutic Perspectives

open access: yesFrontiers in Immunology, 2017
Cancer is still one of the world’s most pressing health-care challenges, leading to a high number of deaths worldwide. Immunotherapy is a new developing therapy that boosts patient’s immune system to fight cancer by modifying tumor–immune cells ...
Paola de Andrade Mello   +2 more
doaj   +1 more source

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