Title:Research Mechanism and Progress of the Natural Compound Curcumin in
Treating Alzheimer´s Disease
Volume: 24
Issue: 17
Author(s): Li Li, Fan Wang, Xirong Jia, Luyang Yao and Yu Liu*
Affiliation:
- School of Pharmaceutical Sciences, Liaoning University, Shenyang, 110000, China
- Institute of Forensic Expertise,
Liaoning University, Shenyang, 110000, China
Keywords:
Alzheimer’s disease, amyloid-β, curcumin, turmeric, tau protein, copper binding, blood-brain barrier, bioavailability, cholesterol, antioxidant.
Abstract: Alzheimer's disease (AD) is one of the most common neurodegenerative diseases. AD
patients usually present symptoms, such as cognitive dysfunction, progressive memory loss, and
other manifestations. With the increasing number of AD cases worldwide, there is an urgent need to
develop effective drug treatments. Currently, drugs targeting AD symptoms may not change or prevent
the progression of the disease. Curcumin, a polyphenol extracted from the turmeric herb, has
been used for the treatment of AD. In this review, we summarized both cellular and animal studies
and described the mechanism of action of curcumin in altering the pathological features of AD.
Curcumin attenuates the formation of amyloid-β plaques and promotes its decomposition, reduces
the phosphorylation of tau, improves its clearance rate, and binds with copper to reduce cholesterol.
It changes the activity of microglia, suppresses acetylcholinesterase, regulates insulin signal transduction,
and exhibits antioxidant properties. Studies have found that curcumin can promote nerve
repair and has a significant effect on AD. However, the low bioavailability of curcumin may hinder
its use as a therapeutic agent. If this limitation can be overcome, curcumin may emerge as a promising
drug for the treatment of AD.