Abstract
Alzheimers disease (AD) is characterized by two major features: (1) degeneration of basal forebrain cholinergic neurons and ensuing deficient cholinergic functions in cortex and hippocampus; (2) extracellular protein aggregates containing β-amyloid peptides (Aβ) in these cholinergic target areas. So far, the most effective therapy for AD is to enhance cholinergic transmission. Neuromodulatory functions of the cholinergic system are mainly mediated by muscarinic receptors (mAChRs). It has long been recognized that mAChRs are crucial for the control of high-level cognitive processes. Drugs that activate mAChRs are helpful in ameliorating cognitive deficits of AD. On the other hand, mounting evidence have established detrimental effects of Aβ to cognitive functions. Despite intensive research on AD, it remains unclear how these two prominent features of the disease may be linked to cause cognitive impairments. In this review, we will summarize a series of recent findings on the interactions between cholinergic functions and β-amyloid in normal animals and AD models, and discuss their potential implications in the pathophysiology and treatment of Alzheimers disease.
Keywords: alzheimers disease, cholinergic, muscarinic receptors, amyloid peptides, insulin, gabaergic transmission, prefrontal cortex, protein kinase c
Current Alzheimer Research
Title: Alzheimers Disease: Interactions Between Cholinergic Functions and β- amyloid
Volume: 1 Issue: 4
Author(s): Zhen Yan and Jian Feng
Affiliation:
Keywords: alzheimers disease, cholinergic, muscarinic receptors, amyloid peptides, insulin, gabaergic transmission, prefrontal cortex, protein kinase c
Abstract: Alzheimers disease (AD) is characterized by two major features: (1) degeneration of basal forebrain cholinergic neurons and ensuing deficient cholinergic functions in cortex and hippocampus; (2) extracellular protein aggregates containing β-amyloid peptides (Aβ) in these cholinergic target areas. So far, the most effective therapy for AD is to enhance cholinergic transmission. Neuromodulatory functions of the cholinergic system are mainly mediated by muscarinic receptors (mAChRs). It has long been recognized that mAChRs are crucial for the control of high-level cognitive processes. Drugs that activate mAChRs are helpful in ameliorating cognitive deficits of AD. On the other hand, mounting evidence have established detrimental effects of Aβ to cognitive functions. Despite intensive research on AD, it remains unclear how these two prominent features of the disease may be linked to cause cognitive impairments. In this review, we will summarize a series of recent findings on the interactions between cholinergic functions and β-amyloid in normal animals and AD models, and discuss their potential implications in the pathophysiology and treatment of Alzheimers disease.
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Cite this article as:
Yan Zhen and Feng Jian, Alzheimers Disease: Interactions Between Cholinergic Functions and β- amyloid, Current Alzheimer Research 2004; 1 (4) . https://dx.doi.org/10.2174/1567205043331992
DOI https://dx.doi.org/10.2174/1567205043331992 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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