Guest Open Access Plus | Free Content | About | Sign in | New Users: Sign up | Mark List  

Current Alzheimer Research

Volume 9 Issue 4
ISSN: 1567-2050
eISSN: 1875-5828

 

   All Titles

  Optimized Turmeric Extract Reduces β-Amyloid and Phosphorylated Tau Protein Burden in Alzheimer’s Transgenic Mice
  pp.500-506 (7) Authors: R. Douglas Shytle, Jun Tan, Paula C. Bickford, Kavon Rezai-zadeh, L Hou, Jin Zeng, Paul R. Sanberg, Cyndy D. Sanberg, Randall S. Alberte, Ryan C. Fink, Bill Roschek Jr
 
 
      Abstract

In a previous in vitro study, the standardized turmeric extract, HSS-888, showed strong inhibition of Aβ aggregation and secretion in vitro, indicating that HSS-888 might be therapeutically important. Therefore, in the present study, HSS-888 was evaluated in vivo using transgenic ‘Alzheimer’ mice (Tg2576) over-expressing Aβ protein. Following a six-month prevention period where mice received extract HSS-888 (5mg/mouse/day), tetrahydrocurcumin (THC) or a control through ingestion of customized animal feed pellets (0.1% w/w treatment), HSS-888 significantly reduced brain levels of soluble (∼40%) and insoluble (∼20%) Aβ as well as phosphorylated Tau protein (∼80%). In addition, primary cultures of microglia from these mice showed increased expression of the cytokines IL-4 and IL-2. In contrast, THC treatment only weakly reduced phosphorylated Tau protein and failed to significantly alter plaque burden and cytokine expression. The findings reveal that the optimized turmeric extract HSS-888 represents an important step in botanical based therapies for Alzheimer’s disease by inhibiting or improving plaque burden, Tau phosphorylation, and microglial inflammation leading to neuronal toxicity.

 
  Keywords: Alzheimer’s disease, Tau phosphorylation, turmeric, curcuminoids, Aß cascade hypothesis, chronic inflammation
  Affiliation: HerbalScience Group LLC., Naples, FL 34110, USA.
 
  Key: New Content Free Content Open Access Plus Subscribed Content

Bentham Science Publishers
www.benthamscience.com

 

  Copyright © 1994 - 2014   Bentham Science Publishers