NDLI: Neuroprotection in alzheimer’s disease — new strategies for treatment

Content Provider	Springer Nature Link
Author	Nordberg, Agneta
Copyright Year	2000
Abstract	Alzheimer’s disease is the most common dementia disorder characterized by multiple pathological changes in the brain leading to a progressive memory loss and other cognitive symptoms producing occupational and social disabilities. Although a great deal of progress has been made in recent years in further understanding the genetial aberrations and pathophysiological processes of Alzheimer’s disease there is still no cure of the disease. The transmitter replacement therapy is so far the most explored therapy. Three cholinesterase inhibitors have so far been approved and presently in clinical use in many countries. Although the cholinesterase inhibitors generally appear to produce symptomatic effects with palliative effect on existing cognitive disturbances recent data suggest that they also may have effect on progression of the disease including possible neuroprotective effects.Possible interactions between Aβ and cholinergic neurotransmission may exist. Treatment of cells with Aβ causes decreased cholinergic activity. Pretreatment of PC12 cells with cholinesterase inhibitors such as tacrine and donepezil in clinical relevant concentrations can attenuate Aβ (25-35) toxicity through mechanisms which mav be mediated via nicotinic receptors.Estrogen his been shown to Protect against Aβ toxicity in different cell lines and also to reduce the formation of AD. Its mechanism for the neuroprotective effect is however not fully clarified. A potentiation of the clinical effect of cholinesterase inhibitors in Alzheimer patients has been given together with estrogen. Experimental data suggest that the neuroprotective effect of estrogen as studied in PC12 cells was mediated at least partly via the α7 nicotinic receptor.Treatment with Aβ in nmolar concentrations for 7 days in PC12 cells significantly decreased the number of nicotinic recevtors binding" sites and mRNA levels. The effects by Aβ on nicotinic receptors are prevented by nicotine pretreatment. The finding suggests a possible link between Aβ and nicotinic receptors deficits in Alzheimer patients in the early course of the disease.
Starting Page	157
Ending Page	165
Page Count	9
File Format	PDF
ISSN	10298428
Journal	Neurotoxicity Research
Volume Number	2
Issue Number	2-3
e-ISSN	14763524
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neuroprotection Alzheimer’s disease Estrogen Acetylcholinesterase inhibitors Nicotine Anti-inflammatory drugs Anti-amyloid drugs Growth factors β-Amyloid Neurosciences Pharmaceutical Sciences/Technology Neurology Neurochemistry Pharmacology/Toxicology Neurobiology
Content Type	Text
Resource Type	Article
Subject	Neuroscience Toxicology

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