Results 261 to 270 of about 219,450 (292)

Noradrenergic Neurotransmission

2004
Publisher Summary Sympathoneural norepinephrine (NE) satisfies the main criteria defining a neurotransmitter: a chemical released from nerve terminals by electrical action potentials that interacts with specific receptors on nearby structures to produce specific physiologic responses. Different stressors can elicit different patterns of sympathoneural
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Nicotine and sympathetic neurotransmission

Cardiovascular Drugs and Therapy, 1997
Nicotine increases heart rate, myocardial contractility, and blood pressure. These nicotine-induced cardiovascular effects are mainly due to stimulation of sympathetic neurotransmission, as nicotine stimulates catecholamine release by an activation of nicotine acetylcholine receptors localized on peripheral postganglionic sympathetic nerve endings and ...
Wolfgang Kübler, Markus Haass
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Cardiac Neurotransmission Imaging

2010
Cardiac neurotransmission imaging with SPECT and PET allows in vivo assessment of presynaptic reuptake and neurotransmitter storage as well as of regional distribution and activity of postsynaptic receptors. In this way, the biochemical processes that occur during neurotransmission can be investigated in vivo at a micromolar level using radiolabeled ...
Albert Flotats, Ignasi Carrió
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Basic Concepts of Neurotransmission

Pediatric Clinics of North America, 2011
An understanding of synaptic neurotransmission is fundamental to the understanding of various neuropsychiatric symptoms and disorders. It is also essential to the discovery of pharmacologic agents that modulate neurotransmission to alleviate such symptoms and conditions.
Dilip R. Patel, Cynthia Feucht
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Metabolism and Neurotransmission [PDF]

, 1983
Oxidative metabolism is essential for normal neuronal function. The brain consumes 20% of the oxygen that is used by the body even though it represents only 2% of the total body mass. Most of this oxygen is utilized for the catabolism of glucose and the production of ATP.
John P. Blass, Gary E. Gibson
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Effects of Cannabinoids on Neurotransmission [PDF]

, 2005
The CB1 cannabinoid receptor is widely distributed in the central and peripheral nervous system. Within the neuron, the CB1 receptor is often localised in axon terminals, and its activation leads to inhibition of transmitter release. The consequence is inhibition of neurotransmission via a presynaptic mechanism.
Szabo, Bela, Schlicker, Eberhard
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Chemical Neurotransmission

2008
Publisher Summary This chapter presents a discussion on chemical neurotransmission and role of chemical neurotransmitters in the prefrontal cortex. It begins with an introduction to neurotransmitters and neurotransmitter receptors. Cells produce certain chemical substances called neurotransmitters and neuromodulators that, through specific receptors ...
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Dementia and neurotransmission

International Congress Series, 2002
Abstract We investigated the influences of subcortical projections on the cerebral cortex in regard to glucose metabolism using positron emission tomography (PET) with F-18-labeled fluorodeoxyglucose (FDG). We speculate that not only cholinergic but also noradrenergic, serotonergic or dopaminergic projections onto the cerebral cortical neurons may be
H Fukuyama, H Saji
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Neurotransmission in Hepatic Encephalopathy

1990
After a careful characterization, a rat model of fulminant hepatic failure galactosamine-induced was utilized in order to evaluate the neurochemical changes and the histological alterations which occur during the developing of the encephalopathy. Following these studies, normal rats were treated with toxins claimed to be the primary agents of hepatic ...
M. Baraldi, M. L. Zeneroli
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Roles of glutamine in neurotransmission

Neuron Glia Biology, 2010
Glutamine (Gln) is found abundantly in the central nervous system (CNS) where it participates in a variety of metabolic pathways. Its major role in the brain is that of a precursor of the neurotransmitter amino acids: the excitatory amino acids, glutamate (Glu) and aspartate (Asp), and the inhibitory amino acid, γ-amino butyric acid (GABA).
Michael Aschner, Magdalena Zielińska, Jan Albrecht, Marta Sidoryk-Wegrzynowicz   +3 more
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