Results 31 to 40 of about 1,563 (163)
Expression of connexins and pannexins in diseased human liver
Connexin proteins can form hexameric hemichannels and gap junctions that mediate paracrine and direct intercellular communication, respectively. Gap junction activity is crucial for the maintenance of hepatic homeostasis, while connexin hemichannels ...
Kaat Leroy +8 more
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Nicotine, the most important neuroteratogen of tobacco smoke, can reproduce brain and cognitive disturbances per se when administered prenatally. However, it is still unknown if paracrine signaling among brain cells participates in prenatal nicotine ...
Juan Andrés Orellana +6 more
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Pannexin channels and ischaemia [PDF]
AbstractAn ischaemic stroke occurs during loss of blood flow in the brain from the occlusion of a blood vessel. The ischaemia itself comprises a complex array of insults, including oxygen and glucose deprivation (OGD), glutamate excitotoxicity, acidification/hypercapnia, and loss of sheer forces.
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Neuronal activity must be tightly coordinated with blood flow to keep proper brain function, which is achieved by a mechanism known as neurovascular coupling. Then, an increase in synaptic activity leads to a dilation of local parenchymal arterioles that
Manuel Francisco Muñoz +2 more
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Connexin and pannexin channels in cancer [PDF]
Communication among cells via direct cell-cell contact by connexin gap junctions, or between cell and extracellular environment via pannexin channels or connexin hemichannels, is a key factor in cell function and tissue homeostasis. Upon malignant transformation in different cancer types, the dysregulation of these connexin and pannexin channels and ...
Jiang, Jean X., Penuela, Silvia
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Restraint stress increases hemichannel activity in hippocampal glial cells and neurons
Stress affects brain areas involved in learning and emotional responses, which may contribute in the development of cognitive deficits associated with major depression.
Juan Andrés Orellana +6 more
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The Panx1a and Panx1b (pannexin) ATP release channels exhibit pro- and anti-convulsant effects, respectively, in a zebrafish model, providing further insight into the role of pannexins in seizure development.
Paige Whyte-Fagundes +6 more
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Electrical synaptic transmission is an essential form of interneuronal communication which is mediated by gap junctions that permit ion flow. Three gene families (connexins, innexins, and pannexins) have evolved to form gap junctional channels.
Qiqian Wang, Shenquan Liu
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Human stem cells express pannexins
Objective Pannexins are channel proteins important for the release of calcium and adenosine triphosphate, which are among other functions involved in early development.
Nadine Hainz +6 more
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Posttranslational Modifications in Connexins and Pannexins [PDF]
Posttranslational modification is a common cellular process that is used by cells to ensure a particular protein function. This can happen in a variety of ways, e.g., from the addition of phosphates or sugar residues to a particular amino acid, ensuring proper protein life cycle and function.
Scott R, Johnstone +4 more
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