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Coenzyme Q10 decreases amyloid pathology and improves behavior in a transgenic mouse model of alzheimer's disease

Dumont, Magali ; Kipiani, Khatuna ; Yu, Fangmin ; Wille, Elizabeth ; Katz, Maya ; Calingasan, Noel Y. ; Gouras, Gunnar K. LU ; Lin, Michael T. and Beal, M. Flint (2011) In Journal of Alzheimer's Disease 27(1). p.211-223
Abstract

Increased oxidative stress is implicated in the pathogenesis of Alzheimer's disease (AD). A large body of evidence suggests that mitochondrial dysfunction and increased reactive oxygen species occur prior to amyloid-β (Aβ) deposition. Coenzyme Q10 (CoQ10), a component of the mitochondrial electron transport chain, is well characterized as a neuroprotective antioxidant in animal models and human trials of Huntington's disease and Parkinson's disease, and reduces plaque burden in AβPP/PS1 mice. We now show that CoQ10 reduces oxidative stress and amyloid pathology and improves behavioral performance in the Tg19959 mouse model of AD. CoQ10 treatment decreased brain levels of protein carbonyls, a marker of oxidative stress. CoQ10 treatment... (More)

Increased oxidative stress is implicated in the pathogenesis of Alzheimer's disease (AD). A large body of evidence suggests that mitochondrial dysfunction and increased reactive oxygen species occur prior to amyloid-β (Aβ) deposition. Coenzyme Q10 (CoQ10), a component of the mitochondrial electron transport chain, is well characterized as a neuroprotective antioxidant in animal models and human trials of Huntington's disease and Parkinson's disease, and reduces plaque burden in AβPP/PS1 mice. We now show that CoQ10 reduces oxidative stress and amyloid pathology and improves behavioral performance in the Tg19959 mouse model of AD. CoQ10 treatment decreased brain levels of protein carbonyls, a marker of oxidative stress. CoQ10 treatment resulted in decreased plaque area and number in hippocampus and in overlying cortex immunostained with an Aβ42-specific antibody. Brain Aβ42 levels were also decreased by CoQ10 supplementation. Levels of amyloid-β protein precursor (AβPP) β-carboxyterminal fragments were decreased. Importantly, CoQ10-treated mice showed improved cognitive performance during Morris water maze testing. Our results show decreased pathology and improved behavior in transgenic AD mice treated with the naturally occurring antioxidant compound CoQ10. CoQ10 is well tolerated in humans and may be promising for therapeutic trials in AD.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Alzheimer's disease, amyloid-β protein, coenzyme Q10, cognition, oxidative stress
in
Journal of Alzheimer's Disease
volume
27
issue
1
pages
211 - 223
publisher
IOS Press
external identifiers
  • scopus:80155191237
ISSN
1387-2877
DOI
10.3233/JAD-2011-110209
language
English
LU publication?
no
id
ff3367d7-0059-4a61-870f-520c734ee741
date added to LUP
2020-02-20 14:12:55
date last changed
2020-05-24 06:30:02
@article{ff3367d7-0059-4a61-870f-520c734ee741,
  abstract     = {<p>Increased oxidative stress is implicated in the pathogenesis of Alzheimer's disease (AD). A large body of evidence suggests that mitochondrial dysfunction and increased reactive oxygen species occur prior to amyloid-β (Aβ) deposition. Coenzyme Q10 (CoQ10), a component of the mitochondrial electron transport chain, is well characterized as a neuroprotective antioxidant in animal models and human trials of Huntington's disease and Parkinson's disease, and reduces plaque burden in AβPP/PS1 mice. We now show that CoQ10 reduces oxidative stress and amyloid pathology and improves behavioral performance in the Tg19959 mouse model of AD. CoQ10 treatment decreased brain levels of protein carbonyls, a marker of oxidative stress. CoQ10 treatment resulted in decreased plaque area and number in hippocampus and in overlying cortex immunostained with an Aβ<sub>42</sub>-specific antibody. Brain Aβ<sub>42</sub> levels were also decreased by CoQ10 supplementation. Levels of amyloid-β protein precursor (AβPP) β-carboxyterminal fragments were decreased. Importantly, CoQ10-treated mice showed improved cognitive performance during Morris water maze testing. Our results show decreased pathology and improved behavior in transgenic AD mice treated with the naturally occurring antioxidant compound CoQ10. CoQ10 is well tolerated in humans and may be promising for therapeutic trials in AD.</p>},
  author       = {Dumont, Magali and Kipiani, Khatuna and Yu, Fangmin and Wille, Elizabeth and Katz, Maya and Calingasan, Noel Y. and Gouras, Gunnar K. and Lin, Michael T. and Beal, M. Flint},
  issn         = {1387-2877},
  language     = {eng},
  month        = {10},
  number       = {1},
  pages        = {211--223},
  publisher    = {IOS Press},
  series       = {Journal of Alzheimer's Disease},
  title        = {Coenzyme Q10 decreases amyloid pathology and improves behavior in a transgenic mouse model of alzheimer's disease},
  url          = {http://dx.doi.org/10.3233/JAD-2011-110209},
  doi          = {10.3233/JAD-2011-110209},
  volume       = {27},
  year         = {2011},
}