Results 41 to 50 of about 41,601 (289)

Brimonidine tartrate effect on retinal spreading depression depends on Müller cells

open access: yesRevista Brasileira de Oftalmologia, 2014
Objective: Demonstrate the Brimonidine effect over Retinal Spreading Depression (SD). Brimonidine is an alpha-2–adrenergic receptor agonist, used in the management of glaucoma. Alpha2-agonists have been shown to be neuroprotective in various experimental
Vinícius Vanzan Pimentel de Oliveira   +5 more
doaj   +1 more source

Blockade of alpha 2-adrenergic receptors in prelimbic cortex: impact on cocaine self-administration in adult spontaneously hypertensive rats following adolescent atomoxetine treatment [PDF]

open access: yes, 2017
RATIONALE: Research with the spontaneously hypertensive rat (SHR) model of attention deficit/hyperactivity disorder demonstrated that chronic methylphenidate treatment during adolescence increased cocaine self-administration established during adulthood ...
Baskin, Britahny M.   +3 more
core   +1 more source

Structural determinants at the M2 muscarinic receptor modulate the RGS4-GIRK response to pilocarpine by impairment of the receptor voltage sensitivity. [PDF]

open access: yes, 2017
Membrane potential controls the response of the M2 muscarinic receptor to its ligands. Membrane hyperpolarization increases response to the full agonist acetylcholine (ACh) while decreasing response to the partial agonist pilocarpine.
Chen, I-Shan   +2 more
core   +1 more source

Spinal Tolerance and Dependence: Some Observations on the Role of Spinal N-Methyl-D-Aspartate Receptors and Phosphorylation in the Loss of Opioid Analgesic Responses

open access: yesPain Research and Management, 2000
The continuous delivery of opiates can lead to a reduction in analgesic effects. In humans, as in other animals, some component of this change in sensitivity seems likely to have a strong pharmacodynamic component.
Tony L Yaksh, Xiao-Ying Hua
doaj   +1 more source

Pharmacological profiles of alpha 2 adrenergic receptor agonists identified using genetically altered mice and isobolographic analysis [PDF]

open access: yesPharmacology & Therapeutics, 2009
Endogenous, descending noradrenergic fibers impose analgesic control over spinal afferent circuitry mediating the rostrad transmission of pain signals. These fibers target alpha 2 adrenergic receptors (alpha(2)ARs) on both primary afferent terminals and secondary neurons, and their activation mediates substantial inhibitory control over this ...
Carolyn A, Fairbanks   +2 more
openaire   +2 more sources

Mirtazapine decreases stimulatory effects of reboxetine on cortisol, adrenocorticotropin and prolactin secretion in healthy male subjects [PDF]

open access: yes, 2004
Reboxetine is a selective noradrenaline reuptake inhibitor, whereas mirtazapine acts as an antagonist at noradrenergic alpha(2), serotonin (5-HT2), 5-HT3 and histamine H-1 receptors.
Baghai, Thomas C.   +2 more
core   +1 more source

Over-the-Counter Ocular Decongestants in the United States – Mechanisms of Action and Clinical Utility for Management of Ocular Redness

open access: yesClinical Optometry, 2020
Lester O Hosten,1 Christopher Snyder2 1Clinical and Medical Affairs, Bausch + Lomb, Bridgewater, NJ, USA; 2Regional Director Medical Science, Bausch + Lomb, Birmingham, AL, USACorrespondence: Lester O HostenClinical and Medical Affairs, Bausch + Lomb ...
Hosten LO, Snyder C
doaj  

Alpha- and beta-adrenergic mediation of changes in metabolism and Na/K exchange in rat brown fat [PDF]

open access: yes, 1985
Double- and triple-barreled ion-sensitive microelectrodes were used to measure changes in extracellular K+ and Na+ concentrations ([K+]o, [Na+]o) in brown fat.
Coles, Jonathan A.   +2 more
core   +2 more sources

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Ingestion of Fluids of the Ocular Surface Containing Eye Drops of Imidazole Derivatives—Alpha Adrenergic Receptor Agonists as Paragons

open access: yesPharmaceuticals
Accidental poisonings by ingesting conjunctival fluid mixed with eye drops commonly involve alpha-2 adrenergic receptor agonists and tetrahydrozoline. These substances are recognized in commonly reported ingestions. Victims of all ages, otherwise in good
Ivan Šoša
doaj   +1 more source

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