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Cited by 722

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

RNA Oxidation Is a Prominent Feature of Vulnerable Neurons in Alzheimer’s Disease

Open access
Nunomura, Akihiko, Perry, George, Pappolla, Miguel A., Wade, Ramon, Hirai, Keisuke, Chiba, Shigeru, Smith, Mark A.·1999·The Journal of Neuroscience

Abstract

In this study we used an in situ approach to identify the oxidized nucleosides 8-hydroxydeoxyguanosine (8OHdG) and 8-hydroxyguanosine (8OHG), markers of oxidative damage to DNA and RNA, respectively, in cases of Alzheimer’s disease (AD). The goal was to determine whether nuclear and mitochondrial DNA as well as RNA is damaged in AD. Immunoreactivity with monoclonal antibodies 1F7 or 15A3 recognizing both 8OHdG and 8OHG was prominent in the cytoplasm and to a lesser extent in the nucleolus and nuclear envelope in neurons within the hippocampus, subiculum, and entorhinal cortex as well as frontal, temporal, and occipital neocortex in cases of AD, whereas similar structures were immunolabeled only faintly in controls. Relative density measurement showed that there was a significant increase (p< 0.0001) in 8OHdG and 8OHG immunoreactivity with 1F7 in cases of AD (n= 22) as compared with senile (n= 13), presenile (n= 10), or young controls (n= 4). Surprisingly, the oxidized nucleoside was associated predominantly with RNA because immunoreaction was diminished greatly by preincubation in RNase but only slightly by DNase. This is the first evidence of increased RNA oxidation restricted to vulnerable neurons in AD. The subcellular localization of damaged RNA showing cytoplasmic predominance is consistent with the hypothesis that mitochondria may be a major source of reactive oxygen species that cause oxidative damage in AD.

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Crossref · 10.1523/jneurosci.19-06-01959.1999

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Metadata

Authors
Nunomura, A., Perry, G., Pappolla, M. A., Wade, R., Hirai, K., Chiba, S., & Smith, M. A.
Venue
The Journal of Neuroscience
Published
1999-03-15
Volume
19
Issue
6
Pages
1959-1964
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1896970469
Cited by
722
References
7
FWCI
19.55
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: RNA Oxidation Is a Prominent Feature of Vulnerable Neurons in Alzheimer’s Disease. https://app.cochat.ai/papers/10.1523/jneurosci.19-06-01959.1999
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Nunomura, A., Perry, G., Pappolla, M. A., Wade, R., Hirai, K., Chiba, S., & Smith, M. A. (1999). RNA Oxidation Is a Prominent Feature of Vulnerable Neurons in Alzheimer’s Disease. The Journal of Neuroscience. https://doi.org/10.1523/jneurosci.19-06-01959.1999

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