Results 11 to 20 of about 30,934 (191)

Phosphocholine-Modified Lipooligosaccharides of Haemophilus influenzae Inhibit ATP-Induced IL-1beta Release by Pulmonary Epithelial Cells [PDF]

open access: yes, 2018
Phosphocholine-modified bacterial cell wall components are virulence factors enabling immune evasion and permanent colonization of the mammalian host, by mechanisms that are poorly understood.
Grau, Veronika   +11 more
core   +1 more source

Towards the convergent therapeutic potential of G protein‐coupled receptors in autism spectrum disorders

open access: yesBritish Journal of Pharmacology, EarlyView., 2023
Abstract Autism spectrum disorders (ASDs) are diagnosed in 1/100 children worldwide, based on two core symptoms: deficits in social interaction and communication, and stereotyped behaviours. G protein‐coupled receptors (GPCRs) are the largest family of cell‐surface receptors that transduce extracellular signals to convergent intracellular signalling ...
Anil Annamneedi   +6 more
wiley   +1 more source

Manipulation of Chemistry and Biology with Visible Light Using Tetra‐ortho‐Substituted Azobenzenes and Azonium Ions

open access: yesAngewandte Chemie, EarlyView.
Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano   +2 more
wiley   +2 more sources

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

open access: yes, 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   +5 more
core   +2 more sources

Agonist activation of a nicotinic acetylcholine receptor [PDF]

open access: yesNeuropharmacology, 2015
How does an agonist activate a receptor? In this article I consider the activation process in muscle nicotinic acetylcholine receptors (AChRs), a prototype for understanding the energetics of binding and gating in other ligand-gated ion channels. Just as movements that generate gating currents activate voltage-gated ion channels, movements at binding ...
openaire   +3 more sources

Silent agonists for α7 nicotinic acetylcholine receptors

open access: yesPharmacological Research, 2023
We discuss models for the activation and desensitization of α7 nicotinic acetylcholine receptors (nAChRs) and the effects of efficacious type II positive allosteric modulators (PAMs) that destabilize α7 desensitized states. Type II PAMs such as PNU-120596 can be used to distinguish inactive compounds from silent agonists, compounds that produce little ...
Roger L. Papke   +2 more
openaire   +3 more sources

Functional Stoichiometry at the Nicotinic Receptor. The Photon Cross Section for Phase 1 Corresponds to Two Bis-Q Molecules per Channel [PDF]

open access: yes, 1982
These experiments examine changes in the agonist-induced conductance that occur when the agonist-receptor complex is perturbed. Voltage-clamped Electrophorus electroplaques are exposed to the photoisomerizable agonist trans-Bis-Q A 1-µs laser flash ...
Lester, Henry A., Sheridan, Robert E.
core   +1 more source

Activation of muscle nicotinic acetylcholine receptor channels by nicotinic and muscarinic agonists [PDF]

open access: yesBritish Journal of Pharmacology, 1999
The dose‐response parameters of recombinant mouse adult neuromuscular acetylcholine receptor channels (nAChR) activated by carbamylcholine, nicotine, muscarine and oxotremorine were measured. Rate constants for agonist association and dissociation, and channel opening and closing, were estimated from single‐channel kinetic analysis.
Gustav Akk, Anthony Auerbach
openaire   +3 more sources

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

The nicotinic receptor of cochlear hair cells: A possible pharmacotherapeutic target? [PDF]

open access: yes, 2009
Mechanosensory hair cells of the organ of Corti transmit information regarding sound to the central nervous system by way of peripheral afferent neurons.
Elgoyhen, Ana Belen   +2 more
core   +1 more source

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