Results 71 to 80 of about 2,426,956 (334)

Nicotinic Receptor Antagonists as Treatments for Nicotine Abuse [PDF]

open access: yes, 2014
Despite the proven efficacy of current pharmacotherapies for tobacco dependence, relapse rates continue to be high, indicating that novel medications are needed. Currently, several smoking cessation agents are available, including varenicline (Chantix®), bupropion (Zyban®), and cytisine (Tabex®).
Michael T. Bardo   +2 more
openaire   +3 more sources

X-ray structure of the human α4β2 nicotinic receptor

open access: yesNature, 2016
Nicotinic acetylcholine receptors are ligand-gated ion channels that mediate fast chemical neurotransmission at the neuromuscular junction and have diverse signalling roles in the central nervous system. The nicotinic receptor has been a model system for
C. L. Morales-Pérez   +2 more
semanticscholar   +1 more source

Gut Metabolite Indole‐3‐Propionic Acid Regulates Macrophage Autophagy Through PPT1 Inhibiting Aging‐Related Myocardial Fibrosis

open access: yesAdvanced Science, EarlyView.
IPA is an intestinal tryptophan metabolite whose effects decline with decreased heart function. Supplementing IPA can alleviate the aging‐related myocardial fibrosis through PPT1. PPT1 is a key protein localized to lysosomes, and IPA can restore macrophage autophagy function by regulating PPT1 expresssions, thereby reducing aging‐related myocardial ...
Jing Lu   +16 more
wiley   +1 more source

Cloning and characterization of the hamster and guinea pig nicotinic acid receptors

open access: yesJournal of Lipid Research, 2007
In this study, we present the identification and characterization of hamster and guinea pig nicotinic acid receptors. The hamster receptor shares ∼80–90% identity with the nucleotide and amino acid sequences of human, mouse, and rat receptors. The guinea
April Smith Torhan   +3 more
doaj  

Nicotine dependence and genetic variation in the nicotinic receptors [PDF]

open access: yesDrug and Alcohol Dependence, 2009
Technological advances have led to the discovery of genetic variants that contribute to many illnesses including nicotine dependence. A multi-stage model of the development of nicotine dependence underlies these genetic studies, and it includes a progression through several stages of smoking behavior from never smoking to nicotine dependence. The final
openaire   +3 more sources

Nicotine-Induced Upregulation of Native Neuronal Nicotinic Receptors Is Caused by Multiple Mechanisms

open access: yesJournal of Neuroscience, 2012
Nicotine causes changes in brain nicotinic acetylcholine receptors (nAChRs) during smoking that initiate addiction. Nicotine-induced upregulation is the long-lasting increase in nAChR radioligand binding sites in brain resulting from exposure.
A. P. Govind, Heather Walsh, W. N. Green
semanticscholar   +1 more source

Weight Cycling Deregulates Eating Behavior in Mice via the Induction of Durable Gut Dysbiosis

open access: yesAdvanced Science, EarlyView.
Weight cycling in Humans is suspected to dysregulate eating behavior. Mice submitted to body weight cycling by alternating western‐type and regular chow diets display increased hedonic appetite when exposed to a palatable diet, reminiscent of binge‐eating episodes.
Mélanie Fouesnard   +13 more
wiley   +1 more source

Signaling of nicotinic acetylcholine receptors in mononuclear phagocytes

open access: yesPharmacological Research, 2023
Nicotinic acetylcholine receptors are not only expressed by the nervous system and at the neuro-muscular junction but also by mononuclear phagocytes, which belong to the innate immune system.
Katrin Richter, Veronika Grau
doaj  

Kynurenine pathway and cognitive impairments in schizophrenia: Pharmacogenetics of galantamine and memantine

open access: yesSchizophrenia Research: Cognition, 2016
The Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) project designed to facilitate the development of new drugs for the treatment of cognitive impairments in people with schizophrenia, identified three drug mechanisms ...
Maju Mathew Koola
doaj   +1 more source

Long-Range Coupling in an Allosteric Receptor Revealed by Mutant Cycle Analysis [PDF]

open access: yes, 2009
The functional coupling of residues that are far apart in space is the quintessential property of allosteric proteins. For example, in Cys-loop receptors, the gating of an intrinsic ion channel is allosterically regulated by the binding of small molecule
Dougherty, Dennis A.   +4 more
core   +2 more sources

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