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Cited by 498

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Morphology and Toxicity of Aβ-(1-42) Dimer Derived from Neuritic and Vascular Amyloid Deposits of Alzheimer's Disease

Open access
Roher, Alex E., Chaney, Michael O., Kuo, Yu-Min, Webster, Scott D., Stine, W. Blaine, Haverkamp, Lanny J., Woods, Amina S., Cotter, Robert J., Tuohy, James M., Krafft, Grant A., Bonnell, Barry S., Emmerling, Mark R.·1996·Journal of Biological Chemistry

Abstract

In the course of analyzing the chemical composition of Alzheimer's disease neuritic and vascular amyloid, we have purified stable dimeric and trimeric components of Abeta peptides. These peptides (molecular mass 9.0 and 13.5 kDa) were separated by size exclusion chromatography in the presence of 80% formic acid or 5 guanidine thiocyanate, pH 7.4. The average ratio of monomers, dimers, and trimers was 55:30:15, respectively. Similar structures were produced over time upon incubation of synthetic Abeta-(1-42) at pH 7.4. The stability of these oligomeric forms was also demonstrated by Western blot and mass spectrometry. Atomic force microscopy and electron microscopy rotary shadowing revealed that the monomers polymerized into 8-10-nm filaments, whereas the dimers generated prolate ellipsoids measuring 3-4 nm in diameter. The pathogenic effects of the dimeric Abeta-(1-40/42) were tested in cultures of rat hippocampal neuron glia cells. Only in the presence of microglia did the dimer elicit neuronal killing. It is possible that these potentially pathogenic Abeta-(1-40/42) dimers and trimers from Alzheimer's disease amyloid represent the soluble oligomers of Abeta recently described in Alzheimer's disease brains (Kuo, Y.-M., Emmerling, M. R., Vigo-Pelfrey, C., Kasunic, T. C., Kirkpatrick, J. B., Murdoch, G. H., Ball, M. J., and Roher, A. E. (1996) J. Biol. Chem., 271, 4077-4081).

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Metadata

Authors
Roher, A. E., Chaney, M. O., Kuo, Y.-M., Webster, S. D., Stine, W. B., Haverkamp, L. J., Woods, A. S., Cotter, R. J., Tuohy, J. M., Krafft, G. A., Bonnell, B. S., & Emmerling, M. R.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1996-08
Volume
271
Issue
34
Pages
20631-20635
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2107406217
Cited by
498
References
34
FWCI
9.81
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Morphology and Toxicity of Aβ-(1-42) Dimer Derived from Neuritic and Vascular Amyloid Deposits of Alzheimer's Disease. https://app.cochat.ai/papers/10.1074/jbc.271.34.20631
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Roher, A. E., Chaney, M. O., Kuo, Y.-M., Webster, S. D., Stine, W. B., Haverkamp, L. J., Woods, A. S., Cotter, R. J., Tuohy, J. M., Krafft, G. A., Bonnell, B. S., & Emmerling, M. R. (1996). Morphology and Toxicity of Aβ-(1-42) Dimer Derived from Neuritic and Vascular Amyloid Deposits of Alzheimer's Disease. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.271.34.20631

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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.