Results 21 to 30 of about 646,019 (403)

Nitric oxide and synaptic function [PDF]

open access: yes, 1994
The free radical gas nitric oxide (NO) is a recently identified neuronal messenger that carries out diverse signaling tasks in both the central and peripheral nervous systems.
Madison, Daniel V., Schuman, Erin M.
core   +1 more source

The Expression of Type-1 and Type-2 Nitric Oxide Synthase in Selected Tissues of the Gastrointestinal Tract during Mixed Mycotoxicosis

open access: yesToxins, 2013
The aim of the study was to verify the hypothesis that intoxication with low doses of mycotoxins leads to changes in the mRNA expression levels of nitric oxide synthase-1 and nitric oxide synthase-2 genes in tissues of the gastrointestinal tract and the ...
Magdalena Gajęcka   +4 more
doaj   +1 more source

The influence of nitric oxide on perigeniculate GABAergic cell activity in the anaesthetized cat [PDF]

open access: yes, 1996
[Abstract] We have tested the effect of iontophoretic application of the nitric oxide synthase inhibitor l-nitroarginine on the activity of a population of 53 perigeniculate (PGN) cells, recorded extracellularly in the anaesthetized paralysed cat. In all
Acuña, Carlos   +4 more
core   +2 more sources

Effects of Chitosan on the Secretion of Cytokines and Expression of Inducible Nitric Oxide Synthase mRNA in Peritoneal Macrophages of Broiler Chicken

open access: yesBrazilian Archives of Biology and Technology, 2014
An in vitro experiment was conducted to study the effects of chitosan on the secretion of cytokines and expression of inducible nitric oxide synthase mRNA in peritoneal macrophages of broiler chicken.
Huiying Li   +5 more
doaj   +1 more source

The key role of nitric oxide in hypoxia: hypoxic vasodilation and energy supply-demand matching [PDF]

open access: yes, 2013
Significance: a mismatch between energy supply and demand induces tissue hypoxia with the potential to cause cell death and organ failure. Whenever arterial oxygen concentration is reduced, increases in blood flow - 'hypoxic vasodilation' - occur in an ...
Alex Dyson   +23 more
core   +1 more source

Tonic and phasic nitric oxide signals in hippocampal long-term potentiation [PDF]

open access: yes, 2006
Nitric oxide ( NO) participates in long-term potentiation (LTP) and other forms of synaptic plasticity in many different brain areas but where it comes from and how it acts remain controversial.
Garthwaite, J, Hopper, RA
core   +1 more source

Nitric Oxide synthases and atrial fibrillation

open access: yesFrontiers in Physiology, 2012
Oxidative stress has been implicated in the pathogenesis of atrial fibrillation. There are multiple systems in the myocardium which contribute to redox homeostasis, and loss of homeostasis can result in oxidative stress.
Ingrid M Bonilla   +8 more
doaj   +1 more source

Study of the nitric oxide system in the rat cerebellum during aging

open access: yesBMC Neuroscience, 2010
Background The cerebellum is the neural structure with the highest levels of nitric oxide, a neurotransmitter that has been proposed to play a key role in the brain aging, although knowledge concerning its contribution to cerebellar senescence is still ...
Martinez-Lara Esther   +9 more
doaj   +1 more source

Differential sensitivity of basal and acetylcholine-induced activity of nitric oxide to blockade by asymmetric dimethylarginine (ADMA) in the rat aorta [PDF]

open access: yes, 2010
<b>Background and purpose</b>: Previous work has shown that NG-monomethyl-l-arginine (l-NMMA) paradoxically inhibits basal, but not ACh-stimulated activity of nitric oxide in rat aorta.
Archer   +29 more
core   +3 more sources

Feedback inhibition of nitric oxide synthase activity by nitric oxide [PDF]

open access: yesBritish Journal of Pharmacology, 1993
1. A murine macrophage cell line, J774, expressed nitric oxide (NO) synthase activity in response to interferon-gamma (IFN-gamma, 10 u ml-1) plus lipopolysaccharide (LPS, 10 ng ml-1). The enzyme activity was first detectable 6 h after incubation, peaked at 12 h and became undetectable after 48 h. 2.
J, Assreuy   +3 more
openaire   +2 more sources

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