Results 11 to 20 of about 16,354 (156)

Involvement of muscarinic receptors in psychomotor hyperactivity in dopamine-deficient mice

Molecular Brain, 2022
Dopamine-deficient (DD) mice exhibit psychomotor hyperactivity that might be related to a decrease in muscarinic signaling. In the present study, muscarinic acetylcholine receptor M2 (CHRM2) density decreased in the cortex in DD mice. This is significant
Masayo Fujita, Yukiko Ochiai, Yoko Hagino, Kazuto Kobayashi, Geoffrey Pavey, Brian Dean, Kazutaka Ikeda   +6 more
doaj   +1 more source

General anaesthesia-related complications of gut motility with a focus on cholinergic mechanisms, TRP channels and visceral pain

Frontiers in Physiology, 2023
General anesthesia produces multiple side effects. Notably, it temporarily impairs gastrointestinal motility following surgery and causes the so-called postoperative ileus (POI), a multifactorial and complex condition that develops secondary to ...
Alexander V. Zholos, Dariia O. Dryn, Mariia I. Melnyk, Mariia I. Melnyk   +3 more
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Vibrational spectroscopy analysis of ligand efficacy in human M2 muscarinic acetylcholine receptor (M2R)

Communications Biology, 2021
Katayama et al. report a vibrational spectroscopic study using ATR–FTIR of the human M2 muscarinic acetylcholine receptor (M2R). Their work involves an extensive comparison of agonists, antagonists, and inverse agonists, in which they show that they C ...
Kota Katayama, Kohei Suzuki, Ryoji Suno, Ryoji Kise, Hirokazu Tsujimoto, So Iwata, Asuka Inoue, Takuya Kobayashi, Hideki Kandori   +8 more
doaj   +1 more source

Characterization of the positive and negative inotropic effects of acetylcholine in the human myocardium [PDF]

, 1995
In the human isolated myocardium, acetylcholine (10−9 to 10−3 M) elicited a biphasic inotropic effect (a decrease in the lower and an increase in the higher concentration range) in atrial and a positive inotropic effect in ventricular trabeculae. However,
Bos, E. (Egbert), Du, X.Y. (Xiaoyi), Saxena, P.R. (Pramod Ranjan), Schoemaker, R.G. (Regien)   +3 more
core   +7 more sources

Carbachol Induces Ca2+-Dependent Contraction via Muscarinic M2 and M3 Receptors in Rat Intestinal Subepithelial Myofibroblasts

Journal of Pharmacological Sciences, 2009
.: Intestinal myofibroblasts (IMFs) that exist adjacent to the basement membrane of intestines have contractility and contribute to physical barriers of the intestine.
Koichi Iwanaga, Takahisa Murata, Muneyoshi Okada, Masatoshi Hori, Hiroshi Ozaki   +4 more
doaj   +1 more source

Dysfunctional Presynaptic M2 Receptors in the Presence of Chronically High Acetylcholine Levels: Data from the PRiMA Knockout Mouse. [PDF]

PLoS ONE, 2015
The muscarinic M2 receptor (M2R) acts as a negative feedback regulator in central cholinergic systems. Activation of the M2 receptor limits acetylcholine (ACh) release, especially when ACh levels are increased because acetylcholinesterase (AChE) activity
Franziska Mohr, Eric Krejci, Martina Zimmermann, Jochen Klein   +3 more
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Distinct agonist regulation of muscarinic acetylcholine M2-M3 heteromers and their corresponding homomers [PDF]

, 2015
Each subtype of the muscarinic receptor family of G protein-coupled receptors is activated by similar concentrations of the neurotransmitter acetylcholine or closely related synthetic analogs such as carbachol. However, pharmacological selectivity can be
Alvarez-Curto, Elisa, Aslanoglou, Despoina, Marsango, Sara, Milligan, Graeme   +3 more
core   +1 more source

Histamine H1 Receptor Down-Regulation Mediated by M3 Muscarinic Acetylcholine Receptor Subtype

Journal of Pharmacological Sciences, 2004
Heterologous down-regulation of histamine H1 receptor (H1R) mediated by muscarinic acetylcholine receptor subtype was investigated using five kinds of Chinese hamster ovary (CHO) cells stably co-expressing the human H1R and one of the five (M1 –M5 ...
Katsuhiro Miyoshi, Nozomi Kawakami, Yousuke Wakayama, Norimasa Izumi, Shuhei Horio, Hiroyuki Fukui   +5 more
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Non-Neuronal Functions of the M2 Muscarinic Acetylcholine Receptor [PDF]

, 2013
Acetylcholine is an important neurotransmitter whose effects are mediated by two classes of receptors. The nicotinic acetylcholine receptors are ion channels, whereas the muscarinic receptors belong to the large family of G protein coupled seven ...
Acevedo, Antje Banning, Boman, Bonner, Caulfield, Caumont, Cheng, Claing, Coso, Crespo, Dascher, Delaney, Elorza, Ferguson, Fisher, Franco, Frucht, Grando, Grando, Hawes, Hawes, He, Hein, Hulme, Jin, Jones, Jones, Lee, Lee, Leiros, Lenhard, McCole, Michal, Miyakawa, Nguyen, Pals-Rylaarsdam, Pals-Rylaarsdam, Pitcher, Prenzel, Reiner, Ritva Tikkanen, Roseberry, Rosenblum, Shah, Simone Bocksberger, Sina Kühne, Taylor, Tohgo, Tsuga, van Biesen, van Koppen, Vogler, Vogler, Wang, Wickman, Williams, Wu, Wymke Ockenga, Zhang   +58 more
core   +3 more sources

Revisiting the Endocytosis of the M2 Muscarinic Acetylcholine Receptor

Membranes, 2015
The agonist-induced endocytosis of the muscarinic acetylcholine receptor M2 is different from that of the other members of the muscarinic receptor family.
Wymke Ockenga, Ritva Tikkanen
doaj   +1 more source