Cited by 254Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchMitochondrial Function and Pathology

The DOI matches its Crossref record; 109 of the 111 references it cites were found in a registry or an index.

Reduction in mitochondrial superoxide dismutase modulates Alzheimer’s disease-like pathology and accelerates the onset of behavioral changes in human amyloid precursor protein transgenic mice

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Abstract

Alzheimer's disease (AD) is associated with accumulations of amyloid-beta (Abeta) peptides, oxidative damage, mitochondrial dysfunction, neurodegeneration, and dementia. The mitochondrial antioxidant manganese superoxide dismutase-2 (Sod2) might protect against these alterations. To test this hypothesis, we inactivated one Sod2 allele (Sod2(+/-)) in human amyloid precursor protein (hAPP) transgenic mice, reducing Sod2 activity to approximately 50% of that in Sod2 wild-type (Sod2(+/+)) mice. A reduction in Sod2 activity did not obviously impair mice without hAPP/Abeta expression. In hAPP mice, however, it accelerated the onset of behavioral alterations and of deficits in prepulse inhibition of acoustic startle, a measure of sensorimotor gating. In these mice, it also worsened hAPP/Abeta-dependent depletion of microtubule-associated protein 2, a marker of neuronal dendrites. Sod2 reduction decreased amyloid plaques in the brain parenchyma but promoted the development of cerebrovascular amyloidosis, gliosis, and plaque-independent neuritic dystrophy. Sod2 reduction also increased the DNA binding activity of the transcription factor nuclear factor kappaB. These results suggest that Sod2 protects the aging brain against hAPP/Abeta-induced impairments. Whereas reductions in Sod2 would be expected to trigger or exacerbate neuronal and vascular pathology in AD, increasing Sod2 activity might be of therapeutic benefit.

Overview

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Crossref · 10.1523/jneurosci.0482-06.2006

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Research works printed but not linked: 10

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Metadata

Authors
Esposito, L., Raber, J., Kekonius, L., Yan, F., Yu, G.-Q., Bien-Ly, N., Puoliväli, J., Scearce-Levie, K., Masliah, E., & Mucke, L.
Affiliations
  • University of California, San Francisco (US)
  • University of California San Diego (US)
  • Gladstone Institutes (US)
Venue
The Journal of Neuroscience
Published
2006-05-10
Volume
26
Issue
19
Pages
5167-5179
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2109187744
Cited by
254
References
111
Citations by year
2026: 5 · 2025: 6 · 2024: 9 · 2023: 12 · 2022: 14 · 2021: 16 · 2020: 18 · 2019: 8 · 2018: 11 · 2017: 13 · 2016: 13 · 2015: 16 · 2014: 16 · 2013: 10 · 2012: 12
FWCI
10.60
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (AG‐022074, AG011385)
  • National Institute on Aging (AG011385, AG022074, P01AG022074)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
Alzheimer's disease, manganese superoxide dismutase, amyloid precursor protein transgenic mice, amyloid-beta, mitochondrial dysfunction, oxidative stress, prepulse inhibition, sensorimotor gating, MAP2, dendritic degeneration, gliosis, neuritic dystrophy, nuclear factor-kappaB, behavioral deficits, neuroprotection
MeSH terms
Superoxide Dismutase 2, Alzheimer Disease, Animals, Mental Disorders, Enzyme Activation, Humans, Mice, Transgenic, Mitochondria, Receptors, Cell Surface, Superoxide Dismutase, Amyloid beta-Protein Precursor, Mice, Protease Nexins

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