Evidence map›Paper›PMID 20980452›Full record

ArticleOccupational and environmental medicine2011

Urinary 8-hydroxy-2'-deoxyguanosine as a biomarker of oxidative DNA damage induced by ambient pollution in the Normative Aging Study.

Cizao Ren, Shona Fang, Robert O Wright, Helen Suh, Joel Schwartz

Abstract read
In one paragraph

Article in Occupational and environmental medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. The flavonoid isoliquiritigenin promotes lifespan extension of Caenorhabditis elegans through the transcription factor DAF-16 and aquaporin-2.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
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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

5 authors at 3 institutions in 1 country.

Cizao RenDepartment of Environmental Health, Exposure, Epidemiology and Risk Program, Harvard School of Public Health, Boston, MA 02215, USA. rencizao@yahoo.com
Shona Fang
Robert O Wright
Helen Suh
Joel Schwartz
Boston Children's Hospital · USHarvard University · USMassachusetts Department of Public Health · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
The HSPH Education and Research Center of Occupational Safety and HealthT42OH008416 · OH · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 2005 to 2025
$30.5M
Epigenetic Effects of Particles and Metals on Cardiac Health of an Aging CohortR01ES015172 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI SCHWARTZ, JOEL D · 2006 to 2015
$4.8M
Cardiovascular Effects of Particles:The Role of Oxidative Stress and Metal PathwR01ES014663 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI SCHWARTZ, JOEL D · 2008 to 2011
$1.9M
NIEHS NIH HHS ES-00002NIEHS NIH HHS ES014663NIEHS NIH HHS ES 15172NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R01 ES014663NIEHS NIH HHS R01 ES015172NIOSH CDC HHS T42 OH008416
6 · The paper itself

Abstract

backgroundStudies show that exposure to air pollution damages human health, but the mechanisms are not fully understood. One suggested pathway is via oxidative stress.

objectivesThis study examines associations between exposure to air pollution and oxidative DNA damage, as indicated by urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) concentrations in ageing participants during 2006-2008.

methodsWe fit linear regression models to examine associations between air pollutants and 8-OHdG adjusting for potential confounders.

results8-OHdG was significantly associated with ambient particulate matter ≤2.5 μm in aerodynamic diameter (PM(2.5)), nitrogen dioxide (NO(2)), maximal 1 h ozone (O(3)), sulphate (SO(4)(2-)) and organic carbon (OC), but not with black carbon (BC), carbon monoxide (CO), the number of particles (PN) or elemental carbon (EC). Effects were more apparent with multi-week averages of exposures. Per IQR increases in 21-day averages of PM(2.5), PN, BC, EC, OC, CO, SO(4)(2-), NO(2) and maximal 1 h O(3) were associated with 30.8% (95% CI 9.3% to 52.2%), -13.1% (95% CI -41.7% to 15.5%), 3.0% (95% CI -19.8% to 25.8%), 5.3% (95% CI -23.6% to 34.2%), 24.4% (95% CI 1.8% to 47.1%), -2.0% (95% CI -12.4% to 8.3%), 29.8% (95% CI 6.3% to 53.3%), 32.2% (95% CI 7.4% to 56.9%) and 47.7% (95% CI 3.6% to 91.7%) changes in 8-OHdG, respectively.

conclusionsThis study suggests that ageing participants experienced an increased risk of developing oxidative DNA injury after exposure to secondary, but not primary, ambient pollutants.

Indexed as

8-Hydroxy-2'-DeoxyguanosineAgedAged, 80 and overAgingAir PollutantsAir PollutionBiomarkersDeoxyguanosineDNA DamageEnvironmental MonitoringHumansLongitudinal StudiesMaleMiddle AgedOxidative StressParticulate Matter8-Hydroxy-2'-DeoxyguanosineAir PollutantsBiomarkersDeoxyguanosineParticulate Matter

Identifiers

PMID20980452
PMCPMC3786183
OpenAlexW2171059361

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.