Results 41 to 50 of about 2,342,133 (345)

Multiple Residues in the Second Extracellular Loop Are Critical for M3 Muscarinic Acetylcholine Receptor Activation [PDF]

, 2007
Recent studies suggest that the second extracellular loop (o2 loop) of bovine rhodopsin and other class I G protein-coupled receptors (GPCRs) targeted by biogenic amine ligands folds deeply into the transmembrane receptor core where the binding of cis ...
Kim, Soo-Kyung, Li, Bo, Scarselli, Marco, Wess, Jürgen   +3 more
core   +1 more source

Antispasmodic Effect of Valeriana pilosa Root Essential Oil and Potential Mechanisms of Action: Ex Vivo and In Silico Studies

Pharmaceutics, 2023
Infusions of Valeriana pilosa are commonly used in Peruvian folk medicine for treating gastrointestinal disorders. This study aimed to investigate the spasmolytic and antispasmodic effects of Valeriana pilosa essential oil (VPEO) on rat ileum.
Roberto O. Ybañez-Julca, Ricardo Pino-Ríos, Iván M. Quispe-Díaz, Daniel Asunción-Alvarez, Edwin E. Acuña-Tarrillo, Elena Mantilla-Rodríguez, Patricia Minchan-Herrera, Marcelo A. Catalán, Liz Zevallos-Escobar, Edison Vásquez-Corales, Osvaldo Yáñez, Wilfredo O. Gutiérrez-Alvarado, Julio Benites   +12 more
doaj   +1 more source

Cholinergic suppression: A postsynaptic mechanism of long-term associative learning [PDF]

, 1986
Food avoidance learning in the mollusc Pleurobranchaea entails reduction in the responsiveness of key brain interneurons in the feeding neural circuitry, the paracerebral feeding command interneurons (PCNs), to the neurotransmitter acetylcholine (AcCho).
Davis, W. Jackson, Kovac, Mark P., Matera, Eugene M., McCormack, Kenneth J., Morielli, Anthony D., Shrum, Richard G.   +5 more
core   +2 more sources

Algebraic study of receptor-ligand systems: a dose-response analysis [PDF]

arXiv, 2022
The study of a receptor-ligand system generally relies on the analysis of its dose-response (or concentration-effect) curve, which quantifies the relation between ligand concentration and the biological effect (or cellular response) induced when binding its specific cell surface receptor.
arxiv  

Delineating muscarinic receptor functions [PDF]

Proceedings of the National Academy of Sciences, 1999
Acetylcholine, as the first chemical molecule to be established as a neurotransmitter, has attracted enduring interest from researchers over several decades. However, deciphering all of the physiological manifestations associated with actions of this molecule has been difficult, and many mysteries of cholinergic neurotransmission still remain to be ...
Marc G. Caron, Raul R. Gainetdinov
openaire   +3 more sources

Additive interaction of intrathecal ginsenosides and neostigmine in the rat formalin test [PDF]

Korean Journal of Anesthesiology, 2013
BackgroundThe authors evaluated the effect of intrathecal mixture of ginsenosides with neostigmine on formalin-induced nociception and made further clear the role of the spinal muscarinic (M) receptors on the activity of ginsenosides.MethodsA catheter ...
Cheon-Hee Park, Park-Ne Kim, Seong-Heon Lee, Myung Ha Yoon   +3 more
doaj   +1 more source

The effects of kindling during pregnancy on long-term potentiation (LTP) induction and M1 muscarinic acetylcholine receptors in male rat offspring

Research in Pharmaceutical Sciences, 2023
Background and purpose: Neonates of pregnant women with epilepsy may compromise normal neurodevelopment and hippocampal morphology. Memory and learning disorders and a decrease in verbal IQ scores are seen in these children later in life. In the previous
Ali Pourmotabbed, Razieh Naghizadeh, Farshad Moradpour, Mozhgan Veisi, Seyed Ershad Nedaei, Fatemeh Zarei, Zahra Salimi   +6 more
doaj   +1 more source

M3 muscarinic acetylcholine receptor facilitates the endocytosis of mu opioid receptor mediated by morphine independently of the formation of heteromeric complexes [PDF]

, 2017
Morphine inefficiency to induce the internalization of mu opioid (MOP) receptors observed in numerous experimental models constitutes a paradigm of G-protein coupled receptor (GPCR) functional selectivity.
Alvarez-Curto, Elisa, Lopez-Gimenez, Juan, Milligan, Graeme   +2 more
core   +1 more source

Structures of the M1 and M2 muscarinic acetylcholine receptor/G-protein complexes

Science, 2019
Choosing a partner G protein–coupled receptors (GPCRs) bind ligands outside the cell and trigger events inside the cell by selectively binding and activating specific G proteins. The selectivity occurs even among highly related GPCRs.
S. Maeda, Q. Qu, M. J. Robertson, G. Skiniotis, B. Kobilka   +4 more
semanticscholar   +1 more source

Method for identification of condition-associated public antigen receptor sequences [PDF]

eLife 2018;7:e33050, 2017
Diverse repertoires of hypervariable immunoglobulin receptors (TCR and BCR) recognize antigens in the adaptive immune system. The development of immunoglobulin receptor repertoire sequencing methods makes it possible to perform repertoire-wide disease association studies of antigen receptor sequences.
arxiv   +1 more source