Results 71 to 80 of about 2,347,334 (218)
This study shows that (a) the slopes of dose-response curves of bromoacetylcholine (BrACh) and acetylcoline (ACh) were the same; (b) the dose-response curves of BrACh to contract superfused chick biventer cervicis and frog rectus abdominis muscles were shifted to the right by d-tubocurarine in a parallel fashio; and (c) the responses of BrACh were not ...
Department of Pharmacology and Therapeutics, University of Florida, College of Medicine, Gainesville, Florida 32610, U.S.A.+1 more
openaire +4 more sources
Summary: Although much progress has been made in understanding type II theta rhythm generation under urethane anesthesia, less is known about the mechanisms underlying type I theta generation during active exploration.
Zhenglin Gu+3 more
doaj
M1 Receptors Mediate Cholinergic Modulation of Excitability in Neocortical Pyramidal Neurons
ACh release into the rodent prefrontal cortex is predictive of successful performance of cue detection tasks, yet the cellular mechanisms underlying cholinergic modulation of cortical function are not fully understood.
Allan T. Gulledge+4 more
semanticscholar +1 more source
A Thermodynamic Model for Receptor Clustering [PDF]
Intracellular signaling often arises from ligand-induced oligomerization of cell surface receptors. This oligomerization or clustering process is fundamentally a cooperative behavior between near-neighbor receptor molecules; the properties of this cooperative process clearly affects the signal transduction.
arxiv +1 more source
High- and low-conductance NMDA receptors are present in layer 4 spiny stellate and layer 2/3 pyramidal neurons of mouse barrel cortex [PDF]
NMDA receptors are ion channels activated by the neurotransmitter glutamate in the mammalian brain and are important in synaptic function and plasticity, but are also found in extrasynaptic locations and influence neuronal excitability. There are different NMDA receptor subtypes which differ in their single-channel conductance.
arxiv +1 more source
Central cholinergic regulation of respiration: nicotinic receptors
Nicotinic acetylcholine receptors (nAChRs) are expressed in brainstem and spinal cord regions involved in the control of breathing. These receptors mediate central cholinergic regulation of respiration and effects of the exogenous ligand nicotine on ...
X. Shao, J. Feldman
semanticscholar +1 more source
Aim. To identify the most promising epitopes that simulate various sites β1-adrenergic and M2-cholinergic receptors, and to evaluate their possible contribution to the development and maintenance of cardiac arrhythmias, particularly idiopathic ...
M. M. Rogova+8 more
doaj +1 more source
Undifferentiated and differentiated PC12 cells protected by huprines against injury induced by hydrogen peroxide. [PDF]
Oxidative stress is implicated in the pathogenesis of neurodegenerative disorders and hydrogen peroxide (H2O2) plays a central role in the stress. Huprines, a group of potent acetylcholinesterase inhibitors (AChEIs), have shown a broad cholinergic ...
Marta Pera+5 more
doaj +1 more source
The role of spinal adrenergic receptors on the antinociception of ginsenosides in a rat postoperative pain model [PDF]
BackgroundThe effect of spinal adrenergic and cholinergic receptors on the anti-nociceptive effect of intrathecal ginsenosides was determined in a rat postoperative pain model.MethodsCatheters were placed into the intrathecal space of male Sprague-Dawley
In Ji Kim+3 more
doaj +1 more source
Detection in Molecular Communications with Ligand Receptors under Molecular Interference [PDF]
Molecular Communications (MC) is a bio-inspired communication technique that uses molecules to transfer information among bio-nano devices. In this paper, we focus on the detection problem for biological MC receivers employing ligand receptors to infer the transmitted messages encoded into the concentration of molecules, i.e., ligands.
arxiv