The role of inhibitory G proteins and regulators of G protein signaling in the in vivo control of heart rate and predisposition to cardiac arrhythmias [PDF]
, 2012 Inhibitory heterotrimeric G proteins and the control of heart rate. The activation of cell signaling pathways involving inhibitory heterotrimeric G proteins acts to slow the heart rate via modulation of ion channels.
Ang, R, Opel, A, Tinker, A
core +1 more source
Relationship between membrane phosphatidylinositol-4,5-bisphosphate and receptor-mediated inhibition of native neuronal M channels [PDF]
, 2005 The relationship between receptor-induced membrane phosphatidylinositol-4'5'-bisphosphate (PIP2) hydrolysis and M-current inhibition was assessed in single-dissociated rat sympathetic neurons by simultaneous or parallel recording of membrane current and ...
Abogadie, FC +6 more
core +1 more source
Journal of applied physiology, 2023 In neonatal rhythmic medullary slices, muscarinic acetylcholine receptor (mAChR) activation of hypoglossal (XII) motoneurons that innervate the tongue has a net excitatory effect on XII inspiratory motor output.
Samantha L Rudy +5 more
semanticscholar +1 more source
Discovery of ‘molecular switches’ within a GIRK activator scaffold that afford selective GIRK inhibitors [PDF]
Bioorganic & Medicinal Chemistry Letters, 2013 This letter describes a multi-dimensional SAR campaign based on a potent, efficacious and selective GIRK1/2 activator (~10-fold versus GIRK1/4 and inactive on nonGIRK 1-containing GIRKs, GIRK 2 or GIRK2/3). Further chemical optimization through an iterative parallel synthesis effort identified multiple 'molecular switches' that modulated the mode of ...
Wandong, Wen +7 more
openaire +2 more sources
Frontiers in Physiology, 2018 Diminished parasympathetic influence is central to the pathogenesis of cardiovascular diseases, including heart failure and hypertension. Stimulation of the vagus nerve has shown promise in treating cardiovascular disease, prompting renewed interest in ...
Steven W. Lee +5 more
doaj +1 more source
Alpha9 nicotinic acetylcholine receptors and the treatment of pain [PDF]
, 2009 Chronic pain is a vexing worldwide problem that causes substantial disability and consumes significant medical resources. Although there are numerous analgesic medications, these work through a small set of molecular mechanisms.
Absalom, Nathan +4 more
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Structural determinants at the M2 muscarinic receptor modulate the RGS4-GIRK response to pilocarpine by impairment of the receptor voltage sensitivity. [PDF]
, 2017 Membrane potential controls the response of the M2 muscarinic receptor to its ligands. Membrane hyperpolarization increases response to the full agonist acetylcholine (ACh) while decreasing response to the partial agonist pilocarpine.
Chen, I-Shan +2 more
core +1 more source
PLoS ONE, 2020 The G protein-gated inwardly rectifying K+ (GIRK) channels play important signaling roles in the central and peripheral nervous systems. However, the role of GIRK channel activation in pain signaling remains unknown mainly due to the lack of potent and ...
Masami Kimura +6 more
doaj +2 more sources
Expression and relevance of the G protein-gated K+ channel in the mouse ventricle
Scientific Reports, 2018 The atrial G protein-gated inwardly rectifying K+ (GIRK) channel is a critical mediator of parasympathetic influence on cardiac physiology. Here, we probed the details and relevance of the GIRK channel in mouse ventricle.
Allison Anderson +8 more
doaj +1 more source
Ras-association domain of sorting Nexin 27 is critical for regulating expression of GIRK potassium channels. [PDF]
PLoS ONE, 2013 G protein-gated inwardly rectifying potassium (GIRK) channels play an important role in regulating neuronal excitability. Sorting nexin 27b (SNX27b), which reduces surface expression of GIRK channels through a PDZ domain interaction, contains a putative ...
Bartosz Balana +7 more
doaj +1 more source