Valproic acid inhibits Ab production, neuritic plaque formation, and behavioral deficits in Alzheimer's disease mouse models

2008 ◽  
Vol 183 (3) ◽  
pp. i8-i8
Author(s):  
Hong Qing ◽  
Guiqiong He ◽  
Philip T.T. Ly ◽  
Christopher J. Fox ◽  
Matthias Staufenbiel ◽  
...  
2008 ◽  
Vol 205 (12) ◽  
pp. 2781-2789 ◽  
Author(s):  
Hong Qing ◽  
Guiqiong He ◽  
Philip T. T. Ly ◽  
Christopher J. Fox ◽  
Matthias Staufenbiel ◽  
...  

Neuritic plaques in the brains are one of the pathological hallmarks of Alzheimer's disease (AD). Amyloid β-protein (Aβ), the central component of neuritic plaques, is derived from β-amyloid precursor protein (APP) after β- and γ-secretase cleavage. The molecular mechanism underlying the pathogenesis of AD is not yet well defined, and there has been no effective treatment for AD. Valproic acid (VPA) is one of the most widely used anticonvulsant and mood-stabilizing agents for treating epilepsy and bipolar disorder. We found that VPA decreased Aβ production by inhibiting GSK-3β–mediated γ-secretase cleavage of APP both in vitro and in vivo. VPA treatment significantly reduced neuritic plaque formation and improved memory deficits in transgenic AD model mice. We also found that early application of VPA was important for alleviating memory deficits of AD model mice. Our study suggests that VPA may be beneficial in the prevention and treatment of AD.


2014 ◽  
Vol 39 (6) ◽  
pp. 1171-1181 ◽  
Author(s):  
Jing Liang ◽  
A. Kerstin Lindemeyer ◽  
Yi Shen ◽  
Héctor E. López-Valdés ◽  
Hilda Martínez-Coria ◽  
...  

1996 ◽  
Vol 313 (2) ◽  
pp. 575-580 ◽  
Author(s):  
Thomas WISNIEWSKI ◽  
Maciej LALOWSKI ◽  
Marketta BOBIK ◽  
Michael RUSSELL ◽  
Joanna STROSZNAJDER ◽  
...  

In Alzheimer's disease, amyloid β (Aβ) is deposited in senile plaques and amyloid angiopathy. Longer Aβ peptides, which extend to residue 42 (Aβ42), have been suggested to be critical for the seeding of amyloid. Aged dogs develop cerebral vessel amyloid and parenchymal preamyloid lesions. Preamyloid in humans is related to senile plaques, whereas in dogs such progression is rare. We evaluated the composition of aged canine vessel amyloid and preamyloid both biochemically and immunohistochemically. The vessel amyloid extended mainly to residue 40 (Aβ40), while preamyloid contained a mixture of Aβ17-42 and Aβ42, with minimal Aβ40. Our results suggest other factors besides Aβ42 are important for neuritic plaque formation.


2014 ◽  
Vol 125 (1) ◽  
pp. 365-378 ◽  
Author(s):  
Marius Krauthausen ◽  
Markus P. Kummer ◽  
Julian Zimmermann ◽  
Elisabet Reyes-Irisarri ◽  
Dick Terwel ◽  
...  

2014 ◽  
Vol 39 (7) ◽  
pp. 1403-1403 ◽  
Author(s):  
Jing Liang ◽  
Héctor E. López-Valdés ◽  
Hilda Martínez-Coria ◽  
A. Kerstin Lindemeyer ◽  
Yi Shen ◽  
...  

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