Evidence map›Paper›PMID 17805420›Full record

ArticleEnvironmental health perspectives2007

Ameliorating the developmental neurotoxicity of chlorpyrifos: a mechanisms-based approach in PC12 cells.

Theodore A Slotkin, Emiko A MacKillop, Ian T Ryde, Frederic J Seidler

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 3% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  8. AnToxicology research · 2016
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  12. Oxidative stress, unfolded protein response, and apoptosis in developmental toxicity.International review of cell and molecular biology · 2015
    Review
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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

4 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
Emiko A MacKillop
Ian T Ryde
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

backgroundOrganophosphate developmental neurotoxicity involves multiple mechanisms converging on neural cell replication and differentiation.

objectivesWe evaluated mechanisms contributing to the adverse effects of chlorpyrifos (CPF) on DNA synthesis, cell number and size, and cell signaling mediated by adenylyl cyclase (AC) in PC12 cells, a neuronotypic cell line that recapitulates the essential features of developing mammalian neurons.

resultsIn undifferentiated cells, cholinergic receptor antagonists had little or no protective effect against the antimitotic actions of CPF; however, when nerve growth factor was used to evoke differentiation, the antagonists showed partial protection against deficits in cell loss and alteration in cell size elicited by CPF, but were ineffective in preventing the deterioration of AC signaling. Nicotine, which stimulates nicotinic acetylcholine receptors but also possesses a mixture of prooxidant/antioxidant activity, had adverse effects by itself but also protected undifferentiated cells from the actions of CPF and had mixed additive/protective effects on cell number in differentiating cells. The antioxidant vitamin E also protected both undifferentiated and differentiating cells from many of the adverse effects of CPF but worsened the impact on AC signaling. Theophylline, which prevents the breakdown of cyclic AMP, was the only agent that restored AC signaling to normal or supranormal levels but did so at further cost to cell replication.

conclusionsOur results show definitive contributions of cholinergic hyperstimulation, oxidative stress, and interference with AC signaling in the developmental neurotoxicity of CPF and point to the potential use of this information to design treatments to ameliorate these adverse effects.

Indexed as

Adenylyl CyclasesAnimalsAntidotesAntioxidantsAtropineBrainCell ProliferationChlorpyrifosCholinesterase InhibitorsDNAInsecticidesMecamylamineMuscarinic AntagonistsNeuronsNicotineNicotinic AgonistsAdenylyl CyclasesAntidotesAntioxidantsAtropineChlorpyrifosCholinesterase InhibitorsDNAInsecticidesMecamylamineMuscarinic AntagonistsNicotineNicotinic AgonistsNicotinic AntagonistsNucleic Acid Synthesis InhibitorsTheophyllineVitamin Eadenylyl cyclasebrain developmentchlorpyrifoscholinergic antagonistsneurotoxicitynicotineorganophosphate insecticidesoxidative stresstheophyllinevitamin E

Identifiers

PMID17805420
PMCPMC1964921
OpenAlexW2075310555

What OpenQuestion holds

Textmetadata
LicenceCC0
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.