Results 81 to 90 of about 57,977 (335)

Proteomic profiling of impaired excitation–contraction coupling and abnormal calcium handling in muscular dystrophy

open access: yesPROTEOMICS, Volume 22, Issue 23-24, December 2022., 2022
Abstract The X‐linked inherited neuromuscular disorder Duchenne muscular dystrophy is characterised by primary abnormalities in the membrane cytoskeletal component dystrophin. The almost complete absence of the Dp427‐M isoform of dystrophin in skeletal muscles renders contractile fibres more susceptible to progressive degeneration and a leaky ...
Paul Dowling   +3 more
wiley   +1 more source

Golden Anniversary of the Nicotinic Receptor [PDF]

open access: yesNeuron, 2020
The high-resolution structure of the nicotinic acetylcholine receptor from Torpedo electric tissue in association with the snake toxin α-bungarotoxin (Rahman et al., 2020) is presented 50 years after its identification as the first neurotransmitter receptor and ligand-gated ion channel.
openaire   +3 more sources

Interaction of Dorsal Hippocampal Nicotinic Receptors and Zinc Oxide Nanoparticles on Memory Consolidation [PDF]

open access: yesPharmaceutical and Biomedical Research
Background: Zinc oxide nanoparticles (ZnO NPs) are widely used in industry, medicine, and agriculture. Previous studies have shown that exposure to ZnO NPs can induce changes in learning and memory.
Niloufar Darbandi   +3 more
doaj  

Evaluation of the cholinomimetic actions of trimethylsulfonium, a compound present in the midgut gland of the sea hare Aplysia brasiliana (Gastropoda, Opisthobranchia)

open access: yesBrazilian Journal of Medical and Biological Research, 2002
Trimethylsulfonium, a compound present in the midgut gland of the sea hare Aplysia brasiliana, negatively modulates vagal response, indicating a probable ability to inhibit cholinergic responses.
C.M. Kerchove   +3 more
doaj   +1 more source

Membrane-mediated interaction of non-conventional snake three-finger toxins with nicotinic acetylcholine receptors

open access: yesCommunications Biology, 2022
The membrane plays a key role in the interaction of non-conventional neurotoxins with the nicotinic receptors.
Zakhar O. Shenkarev   +14 more
doaj   +1 more source

The Channel Capacity of Channelrhodopsin and Other Intensity-Driven Signal Transduction Receptors [PDF]

open access: yesarXiv, 2018
Biological systems transduce signals from their surroundings through a myriad of pathways. In this paper, we describe signal transduction as a communication system: the signal transduction receptor acts as the receiver in this system, and can be modeled as a finite-state Markov chain with transition rates governed by the input signal.
arxiv  

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

open access: yesarXiv, 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  

Trihexyphenidyl rescues the deficit in dopamine neurotransmission in a mouse model of DYT1 dystonia

open access: yesNeurobiology of Disease, 2019
Trihexyphenidyl, a nonselective muscarinic receptor antagonist, is the small molecule drug of choice for the treatment of DYT1 dystonia, but it is poorly tolerated due to significant side effects.
Anthony M. Downs   +4 more
doaj  

Nicotinic Receptor Activity Alters Synaptic Plasticity

open access: yesThe Scientific World Journal, 2001
Studies using specific agonists, antagonists, and lesions have shown that nicotinic cholinergic systems participate in attention, learning, and memory[1,2].
John A. Dani
doaj   +1 more source

Untangling direct and domain-mediated interactions between nicotinic acetylcholine receptors in DHA-rich membranes [PDF]

open access: yesarXiv, 2019
At the neuromuscular junction (NMJ), the nicotinic acetylcholine receptor (nAChR) self-associates to give rise to rapid muscle movement. While lipid domains have maintained nAChR aggregates in-vitro, their specific roles in nAChR clustering are currently unknown. In the present study, we carried out coarse-grained molecular dynamics simulations (CG-MD)
arxiv  

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