Evidence map›Paper›PMID 23359814›Full record

ArticlePloS one2013

A novel mechanism of formaldehyde neurotoxicity: inhibition of hydrogen sulfide generation by promoting overproduction of nitric oxide.

Xiao-Qing Tang, Heng-Rong Fang, Cheng-Fang Zhou, Yuan-Yuan Zhuang, Ping Zhang, Hong-Feng Gu, Bi Hu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Hydrogen Sulfide (HCurrent neuropharmacology · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Inhibited Endogenous HFrontiers in psychology · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. NO* binds human cystathionine β-synthase quickly and tightly.The Journal of biological chemistry · 2014
    Article
  18. 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

7 authors at 2 institutions in 1 country.

Xiao-Qing TangDepartment of Physiology, Medical College, University of South China, Hengyang, Hunan, PR China. txq01001@gmail.com
Heng-Rong Fang
Cheng-Fang Zhou
Yuan-Yuan Zhuang
Ping Zhang
Hong-Feng Gu
Bi Hu
University of South China · CNHengyang Academy of Agricultural Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFormaldehyde (FA) induces neurotoxicity by overproduction of intracellular reactive oxygen species (ROS). Increasing studies have shown that hydrogen sulfide (H(2)S), an endogenous gastransmitter, protects nerve cells against oxidative stress by its antioxidant effect. It has been shown that overproduction of nitric oxide (NO) inhibits the activity of cystathionine-beta-synthase (CBS), the predominant H(2)S-generating enzyme in the central nervous system.

objectiveWe hypothesize that FA-caused neurotoxicity involves the deficiency of this endogenous protective antioxidant gas, which results from excessive generation of NO. The aim of this study is to evaluate whether FA disturbs H(2)S synthesis in PC12 cells, and whether this disturbance is associated with overproduction of NO. PRINCIPAL

findingsWe showed that exposure of PC12 cells to FA causes reduction of viability, inhibition of CBS expression, decrease of endogenous H(2)S production, and NO production. CBS silencing deteriorates FA-induced decreases in endogenous H(2)S generation, neurotoxicity, and intracellular ROS accumulation in PC12 cells; while ADMA, a specific inhibitor of NOS significantly attenuates FA-induced decreases in endogenous H(2)S generation, neurotoxicity, and intracellular ROS accumulation in PC12 cells. CONCLUSION/SIGNIFICANCE: Our data indicate that FA induces neurotoxicity by inhibiting the generation of H(2)S through excess of NO and suggest that strategies to manipulate endogenous H(2)S could open a suitable novel therapeutic avenue for FA-induced neurotoxicity.

Indexed as

AnimalsArginineBlotting, WesternCystathionine beta-SynthaseEnzyme-Linked Immunosorbent AssayFormaldehydeGene Knockdown TechniquesGene SilencingHydrogen SulfideNitric OxideNitric Oxide SynthasePC12 CellsRatsArginineCystathionine beta-SynthaseFormaldehydeHydrogen SulfideNitric OxideNitric Oxide SynthaseN,N-dimethylarginine

Identifiers

PMID23359814
PMCPMC3554621
OpenAlexW2069110711

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LicenceCC BY
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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.