Nicotinic receptor subtypes in human brain related to aging and dementia
Identifieur interne : 001A40 ( Main/Exploration ); précédent : 001A39; suivant : 001A41Nicotinic receptor subtypes in human brain related to aging and dementia
Auteurs : Elaine K. Perry [Royaume-Uni] ; Carmen M. Martin-Ruiz [Royaume-Uni] ; Jennifer A. Court [Royaume-Uni]Source :
- Alcohol [ 0741-8329 ] ; 2000.
English descriptors
Abstract
Neuronal nicotinic receptors are attracting increasing interest, beyond their role in relation to tobacco use, in the areas of human brain aging and disorders associated with dementia. Of the different receptor subtypes in the mammalian brain, many decline with normal aging in several different areas, including particularly cerebral cortex and hippocampus. There are further select subtype changes in the two most common forms of dementia in the elderly: Alzheimer's disease and dementia with Lewy bodies. The α4 subunit is most extensively reduced in the cortex in Alzheimer's disease, reflected in the loss of the high affinity binding site. There are also reductions in the low affinity binding site (α-bungarotoxin binding) in the thalamus in both disorders, which are likely to reflect the loss of the homomeric (most commonly α7) receptor subtype. Correlations exist between some of these receptor abnormalities and clinical and pathological features of the diseases. Targeting such receptors is a current therapeutic objective.
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DOI: 10.1016/S0741-8329(01)00130-6
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Perry</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Joint MRC–Newcastle University Centre Development in Clinical Brain Ageing, Newcastle General Hospital, Westgate Road, Newcastle upon Tyne, NE4 6BE</wicri:regionArea><wicri:noRegion>NE4 6BE</wicri:noRegion></affiliation></author><author><name sortKey="Martin Ruiz, Carmen M" sort="Martin Ruiz, Carmen M" uniqKey="Martin Ruiz C" first="Carmen M" last="Martin-Ruiz">Carmen M. 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Of the different receptor subtypes in the mammalian brain, many decline with normal aging in several different areas, including particularly cerebral cortex and hippocampus. There are further select subtype changes in the two most common forms of dementia in the elderly: Alzheimer's disease and dementia with Lewy bodies. The α4 subunit is most extensively reduced in the cortex in Alzheimer's disease, reflected in the loss of the high affinity binding site. There are also reductions in the low affinity binding site (α-bungarotoxin binding) in the thalamus in both disorders, which are likely to reflect the loss of the homomeric (most commonly α7) receptor subtype. Correlations exist between some of these receptor abnormalities and clinical and pathological features of the diseases. Targeting such receptors is a current therapeutic objective.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Perry, Elaine K" sort="Perry, Elaine K" uniqKey="Perry E" first="Elaine K" last="Perry">Elaine K. Perry</name></noRegion><name sortKey="Court, Jennifer A" sort="Court, Jennifer A" uniqKey="Court J" first="Jennifer A" last="Court">Jennifer A. Court</name><name sortKey="Martin Ruiz, Carmen M" sort="Martin Ruiz, Carmen M" uniqKey="Martin Ruiz C" first="Carmen M" last="Martin-Ruiz">Carmen M. Martin-Ruiz</name><name sortKey="Martin Ruiz, Carmen M" sort="Martin Ruiz, Carmen M" uniqKey="Martin Ruiz C" first="Carmen M" last="Martin-Ruiz">Carmen M. Martin-Ruiz</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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