Results 21 to 30 of about 4,839 (156)
The role of purinergic signaling in microglial responses
Microglia, the primary immune cells in the central nervous system (CNS), are key to the maintenance of homeostasis in the brain parenchyma. In the intact brain, microglia continuously survey the microenvironment with ramified processes.
Yaling Hu, Zhihua Gao
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Purinergic Receptors in Adipose Tissue As Potential Targets in Metabolic Disorders
Extracellular nucleosides and nucleotides, such as adenosine and adenosine triphosphate (ATP), are involved in many physiological and pathological processes in adipose tissue (AT).
Marco Tozzi, Ivana Novak
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Obesity has become one of the major public health problems in both the developing and developed countries. Recent studies have suggested that the purinergic signalling is involved in obesity-associated end-organ damage through purine P1 and P2 receptors.
Hangxiu Che +9 more
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Biology of Platelet Purinergic Receptors and Implications for Platelet Heterogeneity
Platelets are small anucleated cells present only in mammals. Platelets mediate intravascular hemostatic balance, prevent interstitial bleeding, and have a major role in thrombosis.
Milka Koupenova, Katya Ravid
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Uridine adenosine tetraphosphate (Up4A) has been identified as an endothelium-derived contracting factor, which acts through purinergic P2X and P2Y receptors. Since the coronary vascular actions of Up4A are unknown, we investigated the vasoactive profile of Up4A in coronary microvessels, and studied the involvement of purinergic receptor subtypes ...
Zhou, Zhichao +5 more
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Purinergic signaling: A gatekeeper of blood-brain barrier permeation
This review outlined evidence that purinergic signaling is involved in the modulation of blood-brain barrier (BBB) permeability. The functional and structural integrity of the BBB is critical for maintaining the homeostasis of the brain microenvironment.
Yuemei Wang +6 more
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To investigate potential trophic actions of extracellular ATP in human astrocytes, we have examined mitogenic signaling by purinergic receptors in cultures prepared from first trimester rostral central nervous system tissue. We found that ATP and ATPgammaS, a hydrolysis-resistant analog, stimulated DNA synthesis, thereby indicating that P2 purinergic ...
J T, Neary +3 more
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ATP is a ubiquitous intracellular molecule critical for cellular bioenergetics. ATP is released in response to mechanical stimulation through vesicular release, small tears in cellular plasma membranes, or when cells are destroyed by traumatic forces ...
Chrisanne Dsouza +3 more
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Up4A is a potent endothelium‐derived contracting factor that contains purine and pyrimidine moieties and activates purinergic P2X and P2Y receptors. Up4A has recently been found to also have vasodilator effects. Here, we evaluated Up4A in isolated coronary small arteries from normal (N) swine and swine after myocardial infarction ...
Zhichao Zhou +2 more
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Alzheimer and Purinergic Signaling: Just a Matter of Inflammation?
Alzheimer’s disease (AD) is a widespread neurodegenerative pathology responsible for about 70% of all cases of dementia. Adenosine is an endogenous nucleoside that affects neurodegeneration by activating four membrane G protein-coupled receptor subtypes,
Stefania Merighi +5 more
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