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                                       Details for article 14 of 25 found articles
 
 
  Losartan-Induced Hypotension Leads to Tau Hyperphosphorylation and Memory Deficit
 
 
Title: Losartan-Induced Hypotension Leads to Tau Hyperphosphorylation and Memory Deficit
Author: Liu, Xinghua
Wang, Zhihong
Xia, Yiyuan
Yu, Guang
Zeng, Kuan
Luo, Hongbin
Hu, Jichang
Gong, Cheng-Xin
Wang, Jian-Zhi
Zhou, Xin-Wen
Wang, Xiao-Chuan
Appeared in: Journal of Alzheimer's disease
Paging: Volume 40 (2014) nr. 2 pages 419-427
Year: 2014-01-21
Contents: Recent studies have reported a correlation between dementia and low blood pressure. How hypotension is associated with the increased risk of Alzheimer's disease (AD) remains unclear. Here we show that one month treatment of losartan, an angiotensin II type 1 (AT1) receptor antagonist, causes chronic and sustained hypotension, along with oxidative stress in adult male Sprague-Dawley rats. Furthermore, we show that losartan treatment increases the level of inactivated protein phosphatase 2A (PP2A) and the hyperphosphorylation of tau at Ser 199 and Ser 396. Rats treated with losartan present memory deficits and decreases in spine-density. These findings suggest that losartan-induced hypotension may increase the risk of AD-like pathological alteration and behavioral impairment through oxidative stress which leads to tau hyperphosphorylation and loss of dendritic spines.
Publisher: IOS Press
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 14 of 25 found articles
 
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