Results 121 to 130 of about 27,064 (276)

Acetylcholine Release Inhibits Distinct Excitatory Inputs Onto Hippocampal CA1 Pyramidal Neurons via Different Cellular and Network Mechanisms

Frontiers in Cellular Neuroscience, 2019
In hippocampal CA1, muscarinic acetylcholine (ACh) receptor (mAChR) activation via exogenous application of cholinergic agonists has been shown to presynaptically inhibit Schaffer collateral (SC) glutamatergic inputs in stratum radiatum (SR), and ...
Priyodarshan Goswamee, A. Rory McQuiston
doaj   +1 more source

Presynaptic M1 muscarinic cholinoceptors mediate inhibition of excitatory synaptic transmission in the hippocampus in vitro [PDF]

, 1990
The effects of the cholinoceptor agonist, carbachol (CCh), were examined in the rat hippocampal slice preparation. Intracellular recordings from CA1 pyramidal neurones revealed that CCh (1–3 μM) inhibited excitatory postsynaptic responses evoked by ...
Sheridan, Robert D., Sutor, Bernd
core   +1 more source

Fentanyl Disrupts Vagal Control of Airway Tone to Induce Transient Obstruction

Acta 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, Marissa J. Andersen, Mackenna L. Hatfield, Nicholas J. Burgraff   +3 more
wiley   +1 more source

Mechanisms of phospholipase D stimulation by m3 muscarinic acetylcholine receptors [PDF]

European Journal of Biochemistry, 1994
In human embryonic kidney cells stably expressing the human m3 muscarinic acetylcholine receptor (mAChR) subtype, agonist (carbachol) activation stimulated phospholipase C, increased cytoplasmic calcium concentration, induced tyrosine phosphorylation of various cellular proteins and activated phospholipase D. Bypassing membrane receptors, phospholipase
M, Schmidt, S M, Hüwe, B, Fasselt, D, Homann, U, Rümenapp, J, Sandmann, K H, Jakobs   +6 more
openaire   +2 more sources

Muscarinic M2 acetylcholine receptor distribution in the guinea-pig gastrointestinal tract [PDF]

, 2006
In the enteric nervous system, acetylcholine is the most common neurotransmitter to induce gastrointestinal smooth muscle contractions. Cholinergic signaling is mediated by muscarinic acetylcholine receptors on the surface of smooth muscle cells.
58998, 58999, IINO, Satoshi, NOJYO, Yoshiaki   +3 more
core   +1 more source

Polypharmacy in mice disrupts left ventricular function and structure and promotes proteome reorganisation in an age‐ and sex‐specific fashion

British Journal of Pharmacology, Volume 182, Issue 19, Page 4625-4646, October 2025.
Background and Purpose Most older people use polypharmacy (≥5 medications), particularly those with cardiovascular disease. The effects of polypharmacy on the cardiovascular system are not well described. We examined the effect of a chronic polypharmacy regimen on left ventricular (LV) function, structure and proteome in young and old mice of both ...
Trang Tran, Kevin Winardi, Scott P. Levick, Alexander Widiapradja, Gizem Gemikonakli, Susan E. Howlett, Matthew J. McKay, Mark P. Molloy, John Mach, Sarah N. Hilmer   +9 more
wiley   +1 more source

Extrinsic intestinal denervation modulates tumor development in the small intestine of ApcMin/+ mice [PDF]

, 2015
Background Innervation interacts with enteric immune responses. Chronic intestinal inflammation is associated with increased risk of colorectal cancer. We aimed to study potential extrinsic neuronal modulation of intestinal tumor development in a mouse ...
Benhaqi, Petra, Dietrich, Alexandra, Kasparek, Michael S., Kreis, Martin E., Liu, Verena, Schemann, Michael, Schneider, Marlon R., Seeliger, Hendrik   +7 more
core   +2 more sources

Enteric glial S100B controls rhythmic colonic functions by regulating excitability and specificity in gut motor neurocircuits

The Journal of Physiology, Volume 603, Issue 19, Page 5723-5749, October 1, 2025.
Abstract figure legend During colonic motor complex activity, enteric glia play a pivotal role by releasing the S100 calcium‐binding protein B (S100B). This gliotransmitter has both intra‐ and extracellular functions, including the regulation of neuronal and glial excitability within the enteric nervous system.
Beatriz Thomasi, Rafaella Lavalle, Jonathon L. McClain, Julia Jamka, Luisa Seguella, Brian D. Gulbransen   +5 more
wiley   +1 more source

Colorectal Neoplasia Pathogenesis in Normal Appearing Colonic Mucosa ‐A Perspective With Focus on Eicosanoid Signaling Pathways

Cancer Medicine, Volume 14, Issue 18, September 2025.
ABSTRACT Colorectal cancer (CRC) is a major cause of cancer‐related mortality, especially in the Western world, and its incidence is expected to increase in the years to come. Prevention and early detection are key strategies to improve CRC morbidity and mortality.
Ulrike Ries Feddersen, Sebastian Kjærgaard Hendel, Victoria Hellen Berner‐Hansen, Simon Veedfald, Mark Berner‐Hansen, Niels Bindslev   +5 more
wiley   +1 more source

Assessment of the molecular mechanisms of action of novel 4-phenylpyridine-2-one and 6-phenylpyrimidin-4-one allosteric modulators at the M1 muscarinic acetylcholine receptors [PDF]

, 2018
Positive allosteric modulators (PAMs) that target the M1 muscarinic acetylcholine (ACh) receptor (M1 mAChR) are potential treatments for cognitive deficits in conditions such as Alzheimer's disease and schizophrenia.
Andrew B. Tobin, Arthur Christopoulos, Arthur Spathis, Ben Capuano, Celine Valant, Davoren, Ehlert, Ehlert, Elham Khajehali, Emma T. van der Westhuizen, Furchgott, Manuela Jörg, Mistry, Patrick M. Sexton, Peter J. Scammells, Shailesh N. Mistry   +15 more
core   +2 more sources