Results 131 to 140 of about 125,963 (338)

Direct modulation of TRPC ion channels by Gα proteins

open access: yesFrontiers in Physiology
GPCR-Gi protein pathways are involved in the regulation of vagus muscarinic pathway under physiological conditions and are closely associated with the regulation of internal visceral organs.
Hana Kang   +4 more
doaj   +1 more source

Identification and localization of muscarinic acetylcholine receptor proteins in brain with subtype-specific antibodies

open access: yesJournal of Neuroscience, 1991
mRNAs encoding five genetically distinct muscarinic ACh receptors are present in the CNS. Because of their pharmacological similarities, it has not been possible to detect the individual encoded proteins; thus, their physiological functions are not well ...
A. Levey   +4 more
semanticscholar   +1 more source

Ouabain‐induced hypertension in rats: Mechanisms, variability and translational implications

open access: yesExperimental Physiology, EarlyView.
Abstract Ouabain‐induced hypertension is a multifactorial and condition‐dependent phenomenon involving coordinated actions across vascular, renal and central nervous system pathways. At the vascular level, ouabain inhibits Na⁺/K⁺‐ATPase, particularly the α2‐isoform, leading to elevated intracellular Ca2⁺, enhanced vasoconstriction and structural ...
Priscilla Rodrigues O. Feijó   +1 more
wiley   +1 more source

Muscarinic Acetylcholine Type 1 Receptor Activity Constrains Neurite Outgrowth by Inhibiting Microtubule Polymerization and Mitochondrial Trafficking in Adult Sensory Neurons

open access: yesFrontiers in Neuroscience, 2018
The muscarinic acetylcholine type 1 receptor (M1R) is a metabotropic G protein-coupled receptor. Knockout of M1R or exposure to selective or specific receptor antagonists elevates neurite outgrowth in adult sensory neurons and is therapeutic in diverse ...
Mohammad G. Sabbir   +3 more
doaj   +1 more source

Glial cells in the heart: Implications for their roles in health and disease

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of cardiac autonomic ganglia within epicardial fat pads (posterior heart surface shown), containing vagal postganglionic neuron cell bodies, associated fibres, and glia. These ganglia receive cholinergic input from vagal preganglionic neurons and adrenergic input from sympathetic postganglionic neurons ...
Svetlana Mastitskaya   +2 more
wiley   +1 more source

Fentanyl Disrupts Vagal Control of Airway Tone to Induce Transient Obstruction

open access: yesActa Physiologica, Volume 241, Issue 11, November 2025.
ABSTRACT Aim Opioid‐induced respiratory depression (OIRD) is the primary cause of death in opioid overdose, resulting from both suppressed respiratory rhythm and increased airway and thoracic rigidity that compromise ventilation and resuscitation. While the effect(s) of opioids on central rhythm‐generating circuits are well documented, the mechanisms ...
Riley R. Parks   +3 more
wiley   +1 more source

Enteric dysfunctions in experimental Parkinson's disease: alterations of excitatory cholinergic neurotransmission regulating colonic motility in rats [PDF]

open access: yes, 2016
Parkinson's disease (PD) is frequently associated with gastrointestinal symptoms, mostly represented by constipation and defecatory dysfunctions.
Al Harraq, Zainab   +14 more
core   +1 more source

Structure–activity relationship of the allosteric effects of ivermectin at human P2X4 and GABAA receptors

open access: yesBritish Journal of Pharmacology, Volume 182, Issue 21, Page 5286-5302, November 2025.
Abstract Background and purpose Positive allosteric modulation of the P2X4 receptor is a potential route to providing cardiovascular benefit through enhancing flow‐dependent arterial vasodilation and providing cardioprotection. However, ligands that selectively enhance P2X4 activity are absent.
Jessica L. Meades   +4 more
wiley   +1 more source

Regulation of Neuromodulator Receptor Efficacy - Implications for Whole-Neuron and Synaptic Plasticity [PDF]

open access: yes, 2004
Membrane receptors for neuromodulators (NM) are highly regulated in their distribution and efficacy - a phenomenon which influences the individual cell's response to central signals of NM release.
Scheler, Gabriele
core   +1 more source

Muscarinic Receptor Subtypes Mediating Positive and Negative Inotropy in the Developing Chick Ventricle

open access: yesJournal of Pharmacological Sciences, 2007
The inotropic response to muscarinic receptor stimulation of isolated chick ventricular myocardium was examined at various developmental stages, and the receptor subtype involved was pharmacologically characterized.
Hideaki Nouchi   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy