Evidence map›Paper›PMID 21640820›Full record

ArticleNeurotoxicology and teratology

Low-level lead exposure triggers neuronal apoptosis in the developing mouse brain.

William H Dribben, Catherine E Creeley, Nuri Farber

Erratum issuedAbstract read
In one paragraph

Article in Neurotoxicology and teratology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. MOLECULAR MECHANISMS OF LEAD NEUROTOXICITY.Advances in neurotoxicology · 2021
    Article
  8. Developmental exposure to PbChemosphere · 2020
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

William H DribbenDivision of Emergency Medicine, Washington University School of Medicine, 660 S. Euclid Ave., Campus Box 8072, St. Louis, MO 63110, USA. dribbenw@wustl.edu
Catherine E Creeley
Nuri Farber
Washington University in St. Louis · US

Funding

BIOMEDICAL RESEARCH TRAINING IN DRUG ABUSET32DA007261 · NIDA · WASHINGTON UNIVERSITY · PI ARPANA AGRAWAL, Jose A Moron-Concepcion · 1991 to 2026
$8.8M
Washington University Intellectual and Developmental Disabilities Research CenterP30HD062171 · NICHD · WASHINGTON UNIVERSITY · PI INDER, TERRIE E · 2010 to 2014
$4.3M
Training in the Genetics and Molecular Biology of Mental DisordersT32MH014677 · NIMH · WASHINGTON UNIVERSITY · PI RICE, JOHN P. · 1985 to 2020
$3.6M
Magnesium Induced Developmental NeuroapoptosisK08NS048113 · NINDS · WASHINGTON UNIVERSITY · PI DRIBBEN, WILLIAM H · 2006 to 2011
$803k
NICHD NIH HHS P30 HD062171NICHD NIH HHS P30HD062171NIDA NIH HHS T32 DA007261NIDA NIH HHS T32DA07261NIMH NIH HHS T32 MH014677NIMH NIH HHS T32 MH14677NINDS NIH HHS 1K08NS048113-01A2NINDS NIH HHS K08 NS048113
6 · The paper itself

Abstract

While the toxic effects of lead have been recognized for millennia, it has remained a significant public health concern due to its continued use and toxicological potential. Of particular interest is the increased susceptibility of young children to the toxic effects of lead. Although the exact mechanism(s) for lead toxicity is currently not well understood, research has established that it can be a potent NMDA antagonist. Previous research has established that exposure to NMDA antagonists during the brain growth spurt period (first 2 weeks of life in mice) can produce apoptotic neurodegeneration throughout the brain. Based on this information, the ability of lead exposure (two injections of 350 mg/kg lead 4h apart) to produce apoptosis in the neonatal mouse brain was assessed histologically 8-24h after treatment using activated caspase-3 immunohistochemistry, De Olmos silver technique, Nissl staining, and electron microscopy. Lead exposure produced significant neurodegeneration in the caudate/putamen, hippocampus, subiculum, and superficial and deep cortical layers of the frontal cortical regions. Further ultrastructural examination revealed cellular profiles consistent with apoptotic cell death. Statistical results showed that lead exposure significantly increased apoptotic neurodegeneration above that seen in normal controls in animals treated at postnatal day 7, but not on day 14. The results of this study may provide a basis for further elucidation of mechanisms through which the immature nervous system may be particularly susceptible to lead exposure.

Indexed as

AnimalsAnimals, NewbornApoptosisBrainCaspase 3Cell CountDose-Response Relationship, DrugEnvironmental PollutantsImmunohistochemistryLeadMiceMice, Inbred C57BLMicroscopy, Electron, TransmissionNeuronsCaspase 3Environmental PollutantsLead

Identifiers

PMID21640820
PMCPMC3661300
OpenAlexW2061849811

What OpenQuestion holds

Textmetadata
LicenceTDM
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.