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Amyloid beta protein restores hippocampal long term potentiation: a central role for cholesterol?

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dc.creator Alexei R. Koudinov
dc.creator Natalia V. Koudinova
dc.date 2003
dc.date.accessioned 2013-05-30T10:15:58Z
dc.date.available 2013-05-30T10:15:58Z
dc.date.issued 2013-05-30
dc.identifier http://neurobiologyoflipids.org/content/1/8/
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=16835506&date=2003&volume=1&issue=&spage=46
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/4049
dc.description There is no understanding of the role of amyloid beta protein (Ab or Abeta) in brain function and Alzheimer's disease. In the present study we attempted to dissect out the role for Abeta in the synaptic plasticity in adult rat ex vivo hippocampal slices. The prolonged incubation of slices in our experimental setting preserved basic synaptic physiology but abrogated tetanus induced long term potentiation (LTP). Peptide Abeta1-40 rescued LTP while cholesterol synthesis inhibition abolished the restorative action of the peptide. Our observation confirms that Abeta protein is a functional player in cholesterol neurochemical pathways and in synaptic structure-functional plasticity. The finding also supports our proposed hypothesis that the change in Abeta biochemistry in Alzheimer's disease is a functional phenomenon aiming to compensate impaired cholesterol dynamics and associated neurotransmission and synaptic plasticity failure.
dc.publisher Neurobiology of Lipids
dc.source Neurobiology of Lipids
dc.subject Alzheimer's disease
dc.subject amyloid precursor protein
dc.subject APP
dc.subject Down syndrome
dc.subject etiology
dc.subject lipids
dc.subject learning
dc.subject memory
dc.subject long-term potentiation
dc.subject LTP
dc.subject LRP
dc.subject neurodegeneration
dc.subject oxidative stress
dc.subject anti oxidation
dc.subject PHF
dc.subject NFT
dc.subject tau
dc.subject plaques
dc.subject phospholipids
dc.subject secretase
dc.subject synapse
dc.subject synaptic plasticity
dc.subject SREBP
dc.subject statins
dc.subject Liver X LXR
dc.subject sensor
dc.subject presenilin
dc.title Amyloid beta protein restores hippocampal long term potentiation: a central role for cholesterol?


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