Evidence map›Paper›PMID 23657727›Full record

ArticleScientific reports2013

Aging-associated excess formaldehyde leads to spatial memory deficits.

Zhiqian Tong, Chanshuai Han, Wenhong Luo, Hui Li, Hongjun Luo, Min Qiang, Tao Su, Beibei Wu, Ying Liu, Xu Yang and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.2field-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

37 citing papers in PubMed, 111 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Formaldehyde induces and promotes Alzheimer's disease pathologies in a 3D human neural cell culture model.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2025
    Article
  5. Review
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  8. Article
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  13. Review
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  15. Article
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  17. Review
  18. Formaldehyde, Epigenetics, and Alzheimer's Disease.Chemical research in toxicology · 2019
    Review
  19. Article
  20. Article
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

13 authors at 7 institutions in 1 country.

Zhiqian TongState Key Laboratory of Brain and Cognitive Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Chanshuai Han
Wenhong Luo
Hui Li
Hongjun Luo
Min Qiang
Tao Su
Beibei Wu
Ying Liu
Xu Yang
You Wan
Dehua Cui
Rongqiao He
Chinese Academy of Sciences · CNUniversity of Chinese Academy of Sciences · CNPeking University · CNShantou University Medical College · CNCentral China Normal University · CNInstitute of Psychology, Chinese Academy of Sciences · CNShantou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies show that formaldehyde participates in DNA demethylation/methylation cycle. Emerging evidence identifies that neuronal activity induces global DNA demethylation and re-methylation; and DNA methylation is a critical step for memory formation. These data suggest that endogenous formaldehyde may intrinsically link learning-responsive DNA methylation status and memory formation. Here, we report that during spatial memory formation process, spatial training induces an initial global DNA demethylation and subsequent re-methylation associated with hippocampal formaldehyde elevation then decline to baseline level in Sprague Dawley rats. Scavenging this elevated formaldehyde by formaldehyde-degrading enzyme (FDH), or enhancing DNA demethylation by a DNA demethylating agent, both led to spatial memory deficits by blocking DNA re-methylation in rats. Furthermore, we found that the normal adult rats intrahippocampally injected with excess formaldehyde can imitate the aged-related spatial memory deficits and global DNA methylation decline. These findings indicate that aging-associated excess formaldheyde contributes to cognitive decline during aging.

Indexed as

AgingAnimalsChromatography, High Pressure LiquidDisinfectantsDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesDNA MethylationElectrophysiologyFormaldehydeGene Expression RegulationHippocampusHumansMaleMaze LearningMemory DisordersNeuronsDisinfectantsDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesFormaldehyde

Identifiers

PMID23657727
PMCPMC3648839
OpenAlexW2161529514

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.