Results 281 to 290 of about 2,466,892 (329)

Schizophrenia and Nicotinic Receptors

Harvard Review of Psychiatry, 1994
Patients with schizophrenia often cannot respond to important features of their environment and filter out irrelevant stimuli. This dysfunction could be related to an underlying defect in inhibition--i.e., the brain's ability to alter its sensitivity to repeated stimuli. One of the neuronal mechanisms responsible for such inhibitory gating involves the
Robert Freedman, Lawrence E. Adler, Paula Bickford, William Byerley, Hilary Coon, Munro C. Cullum, Jay M. Griffith, Josette G. Harris, Sherry Leonard, Christine Miller, Marina Myles-Worsley, Herbert T. Nagamoto, Greg Rose, Merilyne Waldo   +13 more
openaire   +2 more sources

The Nicotinic Receptor Genes

Clinical Neuropharmacology, 1991
The causative factor(s) of Alzheimer's disease (AD) are presently unknown. However, it has been shown that the number as well as the fraction of high- to low-affinity nicotine binding sites is altered in patients suffering from this disease. This finding, along with the identification of seven genes which code for nicotinic receptors expressed in the ...
S. Heinemann, J. Boulter, J. Connolly, E. Deneris, R. Duvoisin, M. Hartley, I. Hermans-Borgmeyer, M. Hollmann, A. OʼShea-Greenfield, R. Papke, S. R ogers, J. Patrick   +11 more
openaire   +2 more sources

Nicotinic receptors and schizophrenia

Current Medical Research and Opinion, 2004
The incidence of smoking is very high in non-schizophrenic subjects presenting various psychiatric disorders (35 to 54%). However, the incidence of smoking is extremely high in schizophrenic patients: 80% to 90%, versus 25% to 30% of the general population. Various studies have demonstrated that the use of tobacco transiently restores the schizophrenic
Nadège, Ripoll, Marie, Bronnec, Michel, Bourin   +2 more
openaire   +2 more sources

Nicotine and Nicotinic Receptor Involvement in Neuropsychiatric Disorders

Current Topics in Medicinal Chemistry, 2004
Advances 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, Abhay, Singh, Alexandra, Potter   +2 more
openaire   +2 more sources

Nicotine and Nicotinic Receptors; Relevance to Parkinson’s Disease

NeuroToxicology, 2002
The 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
openaire   +2 more sources

Nicotine, Brain Nicotinic Receptors, and Neuropsychiatric Disorders

Archives of Medical Research, 2000
Neuronal 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
openaire   +2 more sources

Effect of nicotine and nicotinic receptors on anxiety and depression

Neuroreport, 2002
Nicotine 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, Darlene H, Brunzell, Barbara J, Caldarone   +2 more
openaire   +2 more sources

Nicotinic Acetylcholine Receptors

2003
Publisher 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
openaire   +2 more sources

Nicotinic Receptors and Attention

2015
Facilitation 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.
openaire   +2 more sources

Structure of Neuronal Nicotinic Receptors

2015
Nicotinic 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
openaire   +3 more sources