Results 151 to 160 of about 90,845 (196)
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Structure of Neuronal Nicotinic Receptors
2015Nicotinic acetylcholine receptors (nAChRs) are a critical component of the brain's cholinergic neurotransmission system that modulates important physiological processes and whose dysfunction has been observed in patients with neurodegenerative diseases and mental illness.
Fasoli F, Gotti C
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Nicotinic Acetylcholine Receptors
2003Publisher Summary This chapter deals with nicotinic acetylcholine receptors. Nicotinic acetylcholine receptors (nAChRs) are cholinergic receptors that form ligand-gated ion channels in the plasma membranes of certain neurons and on the postsynaptic side of the neuromuscular junction. As ionotropic receptors, nAChRs are directly linked to ion channels
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Nicotinic Receptors and Attention
2015Facilitation of different attentional functions by nicotinic acetylcholine receptor (nAChR) agonists may be of therapeutic potential in disease conditions such as Alzheimer's disease or schizophrenia. For this reason, the neuronal mechanisms underlying these effects have been the focus of research in humans and in preclinical models.
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Nicotine and Nicotinic Receptor Involvement in Neuropsychiatric Disorders
Current Topics in Medicinal Chemistry, 2004Advances in the understanding of the neurobiology of the nicotinic receptor have started to be matched by an appreciation of the potential role of these receptors in a variety of neuropsychiatric disorders. While alterations in nicotinic receptor number and/or function have been associated with such conditions as Alzheimer's disease for several years ...
Paul, Newhouse +2 more
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Nicotine and Nicotinic Receptors; Relevance to Parkinson’s Disease
NeuroToxicology, 2002The development of nicotinic agonists for therapy in neurodegenerative disorders such as Parkinson's disease is an area currently receiving considerable attention. The rationale for such work stems from findings that reveal a loss of nicotinic receptors in Parkinson's disease brains.
Maryka, Quik, Jennifer M, Kulak
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Effect of nicotine and nicotinic receptors on anxiety and depression
Neuroreport, 2002Nicotine has been shown to have effects on anxiety and depression in both human and animal studies. These studies suggest that nicotinic acetylcholine receptors (nAChRs) can modulate the function of pathways involved in stress response, anxiety and depression in the normal brain, and that smoking can result in alterations of anxiety level and mood. The
Marina R, Picciotto +2 more
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Nicotine, Brain Nicotinic Receptors, and Neuropsychiatric Disorders
Archives of Medical Research, 2000Neuronal nicotinic acetylcholine receptors (nAChRs) represent a large family of ligand-gated cation channels with diverse structures and properties. In contrast to the muscular nAChRs, the physiological functions of neuronal nAChRs are not well defined to date.
S, Mihailescu, R, Drucker-Colín
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The paradox of nicotinic acetylcholine receptor upregulation by nicotine
Trends in Pharmacological Sciences, 1990Abstract Chronic exposure to agonist (or conditions that increase the synaptic concentration of the natural transmitter, such as blockade of inactivation mechanisms) results in a downregulation of the target receptor. Conversely, chronic exposure to antagonist (or conditions that decrease the synaptic concentration of transmitter, including ...
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Receptor desensitization by lobeline and nicotine
Naunyn-Schmiedeberg's Archives of Pharmacology, 1973In frog sartorius muscles, lobeline had no effect on resting membrane potentials but prevented depolarization of the fibers by nicotine. The blockade caused by lobeline was not antagonized by elevated concentrations of nicotine. Procedures that prevented depolarization of the fibers by nicotine had no effect on the anti-nicotinic effects of nicotine ...
R L, Volle, L, Reynolds
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Nicotinic Receptors, Smoking and Schizophrenia
Restorative Neurology and Neuroscience, 1998Neuronal nicotinic acetylcholine receptor expresssion was examined in schizophrenia. The incidence of smoking in schizophrenia is remarkably high and nicotine has been found to normalize an auditory evoked potential deficit seen in most subjects who suffer from this disease. Antagonists and agonists of a specific subset of this receptor family, the a7
S, Leonard +7 more
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