Evidence map›Paper›PMID 22613225›Full record

ArticleMechanisms of ageing and development2012

Genome-wide expression and methylation profiling in the aged rodent brain due to early-life Pb exposure and its relevance to aging.

Remi Dosunmu, Hany Alashwal, Nasser H Zawia

Open access · greenAbstract read
In one paragraph

Article in Mechanisms of ageing and development, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

45 citing papers in PubMed, 90 citations in OpenAlex.

  1. Gene-specific DNA methylation responses to PbEnvironmental epigenetics · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Epimutational effects of electronic cigarettes.Environmental science and pollution research international · 2021
    Review
  12. Review
  13. Article
  14. Neonatal Lead (Pb) Exposure and DNA Methylation Profiles in Dried Bloodspots.International journal of environmental research and public health · 2020
    Article
  15. Epigenetic Basis of Lead-Induced Neurological Disorders.International journal of environmental research and public health · 2020
    Review
  16. The Chemical Exposome of Human Aging.Frontiers in genetics · 2020
    Review
  17. Article
  18. Article
  19. Review
  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

3 authors at 1 institution in 2 countries.

Remi DosunmuDepartment of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI 02881, USA.
Hany Alashwal
Nasser H Zawia
University of Rhode Island · US

Funding

UNDERGRADUATE RESEARCH AND SEMINARSP20RR016457 · NCRR · UNIVERSITY OF RHODE ISLAND · PI SHAKARIAN, ALISON M · 2001 to 2011
$35.5M
Occupational exposure and the developmental-basis of ADR01ES015867 · NIEHS · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2009 to 2012
$1.2M
Fetal Pb-exposure and neurodegeneration in aging brainsR21ES013022 · NIEHS · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2004 to 2006
$496k
Neonatal exposure &neurodegeneration of the aged brainR03AG027246 · NIA · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2005 to 2006
$121k
Intramural NIH HHSNCRR NIH HHS P20 RR016457NCRR NIH HHS P20RR016457NIA NIH HHS AG027246NIA NIH HHS R03 AG027246NIEHS NIH HHS ES013022NIEHS NIH HHS R01 ES015867NIEHS NIH HHS R21 ES013022
6 · The paper itself

Abstract

In this study, we assessed global gene expression patterns in adolescent mice exposed to lead (Pb) as infants and their aged siblings to identify reprogrammed genes. Global expression on postnatal day 20 and 700 was analyzed and genes that were down- and up-regulated (≥2 fold) were identified, clustered and analyzed for their relationship to DNA methylation. About 150 genes were differentially expressed in old age. In normal aging, we observed an up-regulation of genes related to the immune response, metal-binding, metabolism and transcription/transduction coupling. Prior exposure to Pb revealed a repression in these genes suggesting that disturbances in developmental stages of the brain compromise the ability to defend against age-related stressors, thus promoting the neurodegenerative process. Overexpression and repression of genes corresponded with their DNA methylation profile.

Indexed as

Environmental ExposureGene Expression ProfilingAdaptive ImmunityAgingAlzheimer DiseaseAnimalsBrainDNA MethylationDown-RegulationFemaleGenomeLeadMaleMetalloproteinsMiceMice, Inbred C57BLLeadMetalloproteins

Identifiers

PMID22613225
PMCPMC3389195
OpenAlexW1998499959

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.