Evidence map›Paper›PMID 19440498›Full record

ArticleEnvironmental health perspectives2009

Oxidative and excitatory mechanisms of developmental neurotoxicity: transcriptional profiles for chlorpyrifos, diazinon, dieldrin, and divalent nickel in PC12 cells.

Theodore A Slotkin, Frederic J Seidler

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
13.0field-weighted citation impact, top 1% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 105 citations in OpenAlex.

  1. Pooled it
  2. Chlorpyrifos and Chlorpyrifos-Oxon: A Widening Spectrum of Toxicity.International journal of molecular sciences · 2026
    Review
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  10. Use of computational toxicology tools to predictCurrent research in toxicology · 2022
    Article
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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

2 authors at 1 institution in 1 country.

Theodore A SlotkinDepartment of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710, USA. t.slotkin@duke.edu
Frederic J Seidler
Duke Medical Center · US

Funding

Zebrafish as a Detector of Organophosphate ExposureP42ES010356 · NIEHS · DUKE UNIVERSITY · PI EDWARD D LEVIN · 2000 to 2026
$56.2M
NIEHS NIH HHS ES10356NIEHS NIH HHS P42 ES010356
6 · The paper itself

Abstract

backgroundOxidative stress and excitotoxicity underlie the developmental neurotoxicity of numerous chemicals.

objectivesWe compared the effects of organophosphates (chlorpyrifos and diazinon), an organo-chlorine (dieldrin), and a metal [divalent nickel (Ni2+)] to determine how these mechanisms contribute to similar or dissimilar neurotoxic outcomes.

methodsWe used PC12 cells as a model of developing neurons and evaluated transcriptional profiles for genes for oxidative stress responses and glutamate receptors.

resultsChlorpyrifos had a greater effect on oxidative-stress-related genes in differentiating cells compared with the undifferentiated state. Chlorpyrifos and diazinon showed significant concordance in their effects on glutathione-related genes, but they were negatively correlated for effects on catalase and superoxide dismutase isoforms and had no concordance for effects on ionotropic glutamate receptors. Surprisingly, the correlations were stronger between diazinon and dieldrin than between the two organophosphates. The effects of Ni2+ were the least similar for genes related to oxidative stress but had significant concordance with dieldrin for effects on glutamate receptors.

conclusionsOur results point to underlying mechanisms by which different organophosphates produce disparate neurotoxic outcomes despite their shared property as cholinesterase inhibitors. Further, apparently unrelated neurotoxicants may produce similar outcomes because of convergence on oxidative stress and excitotoxicity. The combined use of cell cultures and microarrays points to specific end points that can distinguish similarities and disparities in the effects of diverse developmental neurotoxicants.

Indexed as

AnimalsCatalaseCations, DivalentCell DifferentiationChlorpyrifosDiazinonDieldrinGene Expression ProfilingGene Expression Regulation, DevelopmentalGlutathione TransferaseInsecticidesNeurogenesisNeuronsNickelOrganothiophosphorus CompoundsPC12 CellsCatalaseCations, DivalentChlorpyrifosDiazinonDieldrinGlutathione TransferaseInsecticidesNickelOrganothiophosphorus CompoundsReceptors, GlutamateSuperoxide Dismutasechlorpyrifosdiazinondieldrinexcitotoxicityglutamate receptorsglutathionemetal neurotoxicitymicroarraysnerve growth factorneuronal developmentneurotoxicitynickelorganochlorine insecticidesorganophosphate insecticidesoxidative stressPC12 cells

Identifiers

PMID19440498
PMCPMC2679603
OpenAlexW2054636717

What OpenQuestion holds

Textmetadata
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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.