Results 51 to 60 of about 599,334 (260)

Structurally similar allosteric modulators of α7 nicotinic acetylcholine receptors exhibit five distinct pharmacological effects. [PDF]

open access: yes, 2015
Activation of nicotinic acetylcholine receptors (nAChRs) is associated with the binding of agonists such as acetylcholine to an extracellular site that is located at the interface between two adjacent receptor subunits.
Dhankher, P   +4 more
core  

Distribution of Nicotinic Receptors in the Human Brain: Quantitative Autoradiography Using 3H-Nicotine

open access: yes, 1988
Several studies showed clearly that the mammalian central nervous system possess nicotinic receptors. Recently, using membrane receptor binding studies the regional distribution of 3H-nicotine and/or H-acetylcholine binding sites in the human brain has ...
Abdu Adem   +9 more
core   +1 more source

The Role of Nicotinic Receptors on Ca2+ Signaling in Bovine Chromaffin Cells

open access: yesCurrent Issues in Molecular Biology
Chromaffin cells have been used as a physiological model to understand neurosecretion in mammals for many years. Nicotinic receptors located in the cells’ membrane are stimulated by acetylcholine, and they participate in the exocytosis of chromaffin ...
Amparo Gil   +3 more
doaj   +1 more source

Lactiplantibacillus Plantarum GUANKE Alleviates Allergic Asthma by Restricting Monocyte‐to‐DC Differentiation Via Microbiota‐Associated IAA

open access: yesAdvanced Science, EarlyView.
Lactiplantibacillus plantarum GUANKE remodels the indigenous gut microbiota and is associated with microbiota‐dependent restoration of circulating IAA. IAA treatment attenuates JAK3‐STAT3 and Jag1‐Notch4‐Hey1 signaling and reduces CX3CR1+Ly6C− monocytic precursor generation and pulmonary CD11b+ DC accumulation, together with reduced Th2 inflammation ...
Yujia He   +10 more
wiley   +1 more source

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

Venom-Derived Neurotoxins Targeting Nicotinic Acetylcholine Receptors

open access: yesMolecules, 2021
Acetylcholine was the first neurotransmitter described. The receptors targeted by acetylcholine are found within organisms spanning different phyla and position themselves as very attractive targets for predation, as well as for defense. Venoms of snakes
Ayaulym Bekbossynova   +2 more
doaj   +1 more source

Human Foetal Neuroblasts Exhibit BK Channel‐Dependent Membrane Voltage Oscillations upon Depolarization

open access: yesAdvanced Science, EarlyView.
Primary cultures of neuroblasts isolated from the nucleus basalis of Meynert of 12‐weeks‐old human foetuses were prepared. Whole‐cell patch‐clamp recordings were performed by injecting a depolarizing stimulus current (+500 pA; 500 ms), and the membrane voltage recorded; this stimulus current evoked periodic‐like oscillations in membrane voltage ...
Elisabetta Coppi   +9 more
wiley   +1 more source

The role of neuronal nicotinic acetylcholine receptors in central cardiovascular regulation. [PDF]

open access: yes, 2007
The central effect of nicotine on cardiovascular regulation has been extensively studied. However, due to its unselective nature for nicotinic acetylcholine receptors (nAChR) the involvement of specific nAChRs at sites in the brain, in central nervous ...
Moore, C.
core  

Nicotinic acetylcholine receptors of nerve and muscle: Functional aspects

open access: yes, 1987
Cloning studies suggest that there are at least five types of nicotinic receptor with different amino acid sequences. David Colquhoun and colleagues discuss pharmacological consequences of this heterogeneity.
David Colquhoun   +2 more
core   +1 more source

AChBP-targeted alpha-conotoxin correlates distinct binding orientations with nAChR subtype selectivity [PDF]

open access: yes, 2007
Neuronal nAChRs are a diverse family of pentameric ion channels with wide distribution throughout cells of the nervous and immune systems. However, the role of specific subtypes in normal and pathological states remains poorly understood due to the lack ...
Sixma, Titia K.   +46 more
core   +1 more source

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