Title:Scopolamine, a Toxin-Induced Experimental Model, Used for Research in Alzheimer’s Disease
Volume: 19
Issue: 2
Author(s): Win Ning Chen and Keng Yoon Yeong*
Affiliation:
- School of Science, Monash University Malaysia, 47500 Bandar Sunway, Selangor,Malaysia
Keywords:
Muscarinic antagonist, acetylcholine, Alzheimer’s disease, cognitive dysfunction, amyloid-beta plaque, scopolamine.
Abstract: Scopolamine as a drug is often used to treat motion sickness. Derivatives of scopolamine
have also found applications as antispasmodic drugs among others. In neuroscience-related research, it
is often used to induce cognitive disorders in experimental models as it readily permeates the bloodbrain
barrier. In the context of Alzheimer’s disease, its effects include causing cholinergic dysfunction
and increasing amyloid-β deposition, both of which are hallmarks of the disease. Hence, the application
of scopolamine in Alzheimer’s disease research is proven pivotal but seldom discussed. In this review,
the relationship between scopolamine and Alzheimer’s disease will be delineated through an
overall effect of scopolamine administration and its specific mechanisms of action, discussing mainly
its influences on cholinergic function and amyloid cascade. The validity of scopolamine as a model of
cognitive impairment or neurotoxin model will also be discussed in terms of advantages and limitations
with future insights.