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Cited by 391

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Evidence that the β-Amyloid Plaques of Alzheimer's Disease Represent the Redox-silencing and Entombment of Aβ by Zinc

Open access
Cuajungco, Math P., Goldstein, Lee E., Nunomura, Akihiko, Smith, Mark A., Lim, James T., Atwood, Craig S., Huang, Xudong, Farrag, Yasser W., Perry, George, Bush, Ashley I.·2000·Journal of Biological Chemistry

Abstract

Abeta binds Zn(2+), Cu(2+), and Fe(3+) in vitro, and these metals are markedly elevated in the neocortex and especially enriched in amyloid plaque deposits of individuals with Alzheimer's disease (AD). Zn(2+) precipitates Abeta in vitro, and Cu(2+) interaction with Abeta promotes its neurotoxicity, correlating with metal reduction and the cell-free generation of H(2)O(2) (Abeta1-42 > Abeta1-40 > ratAbeta1-40). Because Zn(2+) is redox-inert, we studied the possibility that it may play an inhibitory role in H(2)O(2)-mediated Abeta toxicity. In competition to the cytotoxic potentiation caused by coincubation with Cu(2+), Zn(2+) rescued primary cortical and human embryonic kidney 293 cells that were exposed to Abeta1-42, correlating with the effect of Zn(2+) in suppressing Cu(2+)-dependent H(2)O(2) formation from Abeta1-42. Since plaques contain exceptionally high concentrations of Zn(2+), we examined the relationship between oxidation (8-OH guanosine) levels in AD-affected tissue and histological amyloid burden and found a significant negative correlation. These data suggest a protective role for Zn(2+) in AD, where plaques form as the result of a more robust Zn(2+) antioxidant response to the underlying oxidative attack.

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Crossref · 10.1074/jbc.c000165200

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Metadata

Authors
Cuajungco, M. P., Goldstein, L. E., Nunomura, A., Smith, M. A., Lim, J. T., Atwood, C. S., Huang, X., Farrag, Y. W., Perry, G., & Bush, A. I.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2000-06
Volume
275
Issue
26
Pages
19439-19442
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1978254707
Cited by
391
References
5
FWCI
14.74
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Evidence that the β-Amyloid Plaques of Alzheimer's Disease Represent the Redox-silencing and Entombment of Aβ by Zinc. https://app.cochat.ai/papers/10.1074/jbc.c000165200
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Cuajungco, M. P., Goldstein, L. E., Nunomura, A., Smith, M. A., Lim, J. T., Atwood, C. S., Huang, X., Farrag, Y. W., Perry, G., & Bush, A. I. (2000). Evidence that the β-Amyloid Plaques of Alzheimer's Disease Represent the Redox-silencing and Entombment of Aβ by Zinc. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.c000165200

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.