Evidence map›Paper›PMID 17426120›Full record

ArticleNucleic acids research2007

Identification and characterization of OGG1 mutations in patients with Alzheimer's disease.

Guogen Mao, Xiaoyu Pan, Bei-Bei Zhu, Yanbin Zhang, Fenghua Yuan, Jian Huang, Mark A Lovell, Maxwell P Lee, William R Markesbery, Guo-Min Li and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 123 citations in OpenAlex.

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  7. Novel Techniques for Mapping DNA Damage and Repair in the Brain.International journal of molecular sciences · 2024
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1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Guogen MaoGraduate Center for Toxicology, University of Kentucky, Lexington, KY, USA.
Xiaoyu Pan
Bei-Bei Zhu
Yanbin Zhang
Fenghua Yuan
Jian Huang
Mark A Lovell
Maxwell P Lee
William R Markesbery
Guo-Min Li
Liya Gu
University of Kentucky · USThe Graduate Center, CUNY · USNational Institutes of Health · USWuhan University · CN

Funding

University of Kentucky Alzheimer's Disease Core Center - Biomarker CoreP30AG028383 · NIA · UNIVERSITY OF KENTUCKY · PI SCHMITT, FREDERICK · 2006 to 2020
$23.3M
TROPIC, CHOLINERGIC AND PATHOLOGIC CHANGES IN ALZHEIMER'S DISEASEP01AG005119 · NIA · UNIVERSITY OF KENTUCKY · PI ST CLAIR, DARET K · 1985 to 2012
$15.4M
NIA NIH HHS 1P30 AG0 28383NIA NIH HHS P01 AG005119NIA NIH HHS P01 AG05119NIA NIH HHS P30 AG028383
6 · The paper itself

Abstract

Patients with Alzheimer's disease (AD) exhibit higher levels of 8-oxo-guanine (8-oxoG) DNA lesions in their brain, suggesting a reduced or defective 8-oxoG repair. To test this hypothesis, this study investigated 14 AD patients and 10 age-matched controls for mutations of the major 8-oxoG removal gene OGG1. Whereas no alterations were detected in any control samples, four AD patients exhibited mutations in OGG1, two carried a common single base (C796) deletion that alters the carboxyl terminal sequence of OGG1, and the other two had nucleotide alterations leading to single amino acid substitutions. In vitro biochemical assays revealed that the protein encoded by the C796-deleted OGG1 completely lost its 8-oxoG glycosylase activity, and that the two single residue-substituted OGG1 proteins showed a significant reduction in the glycosylase activity. These results were consistent with the fact that nuclear extracts derived from a limited number of AD patients with OGG1 mutations exhibited greatly reduced 8-oxoG glycosylase activity compared with age-matched controls and AD patients without OGG1 alterations. Our findings suggest that defects in OGG1 may be important in the pathogenesis of AD in a significant fraction of AD patients and provide new insight into the molecular basis for the disease.

Indexed as

MutationAlzheimer DiseaseAmino Acid SequenceAmino Acid SubstitutionBase SequenceBrainDNA GlycosylasesHumansMolecular Sequence DataPoint MutationDNA Glycosylasesoxoguanine glycosylase 1, human

Identifiers

PMID17426120
PMCPMC1885677
OpenAlexW2135425662

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.