Brain cholinesterases: III. Future perspectives of AD research and clinical practice

Medical Hypotheses
Z-X Shen

Abstract

Alzheimer's disease (AD) is initially and primarily associated with the degeneration and alteration in the metabolism of cholinesterases (ChEs). The use of ChEs inhibitors to treat Alzheimer's condition, on the basis of the cholinergic hypothesis of the disease, is, therefore, without grounds. Most disturbing is the fact that the currently available anti-ChEs are designed to inhibit normal ChEs in the brain and throughout the body, but not the abnormal ones. Based on the acetylcholinesterase (AChE) deficiency theory, treatment should be designed to protect the cranial ChEs system from alteration and/or to help that system fight against degeneration through restoring its homeostatic action for brain structure and function instead. The overlap in the clinical, biochemical, molecular-cellular, and pathological alterations seen in patients with AD and individuals with many other brain disorders, which has bewildered many investigators, may now be explained by the shared underlying mismetabolism of brain ChEs. The abnormal metabolism of ChEs existing in asymptomatic subjects may indicate that the system is "at risk" and deserves serious attention. Future perspectives of ChEs research in vivo and in vitro in connection with AD and cl...Continue Reading

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