Evidence map›Paper›PMID 25863186›Full record

ArticleEnvironmental research2015

Association of blood lead levels with urinary F₂-8α isoprostane and 8-hydroxy-2-deoxy-guanosine concentrations in first-grade Uruguayan children.

Aditi Roy, Elena Queirolo, Fabiana Peregalli, Nelly Mañay, Gabriela Martínez, Katarzyna Kordas

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Temperature stability of urinary FPractical laboratory medicine · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Low level arsenic exposure, B-vitamins, and achievement among Uruguayan school children.International journal of hygiene and environmental health · 2020
    Article
  17. Article
  18. Review
  19. Article
  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

6 authors at 5 institutions in 3 countries.

Aditi RoyDepartment of Nutritional Sciences, Pennsylvania State University, University Park, USA. Electronic address: axr977@psu.edu.
Elena QueiroloCentre for Research, Catholic University of Uruguay, Montevideo, Uruguay.
Fabiana PeregalliCentre for Research, Catholic University of Uruguay, Montevideo, Uruguay; Department of Gastroenterology, Hepatology and Nutrition, Hospital Pereira Rossell, Montevideo, Uruguay.
Nelly MañayFaculty of Chemistry, University of the Republic of Uruguay, Montevideo, Uruguay.
Gabriela MartínezFaculty of Chemistry, University of the Republic of Uruguay, Montevideo, Uruguay.
Katarzyna KordasDepartment of Nutritional Sciences, Pennsylvania State University, University Park, USA; School of Social and Community Medicine, University of Bristol, Bristol, UK.
Pennsylvania State University · USCentro Hospitalario Pereira Rossell · UYUniversidad Católica del Uruguay · UYUniversidad de la República · UYUniversidad de Montevideo · UY

Funding

Nutritional and Heavy Metals: Effects on Child Learning and Behavior in UruguayR21ES016523 · NIEHS · PENNSYLVANIA STATE UNIVERSITY, THE · PI KORDAS, KATARZYNA · 2008 to 2009
$262k
NIEHS NIH HHS 1R21ES16523-01NIEHS NIH HHS R21 ES016523
6 · The paper itself

Abstract

Oxidative stress (OS) is a potential molecular mechanism for lead-induced toxicities, yet, we have limited understanding of the relation between low-level lead (Pb) exposure and OS, especially in children. This cross-sectional study examines the association between blood lead level (BLL) and two OS markers-urinary F2-8α isoprostane or isoprostane (a marker of lipid peroxidation) and 8-hydroxy-2-deoxy-Guanosine or 8-OH-dG (a marker of DNA damage) in 211 children, aged 5-8 years, from Montevideo, Uruguay. The role of dietary intakes of vitamin C and zinc in modifying the relation between BLL and OS was also examined. The mean (SD) BLL of the study children was 4.7 (2.2) µg/dL, with 30.2% children having BLL ≥5 µg/dL, the current reference level set by the US Centre for Disease Control for identifying, monitoring and management of children with elevated BLL. In covariate-adjusted analysis, there was a weak positive association between BLL and urinary isoprostane (adjusted for specific gravity) [β=0.09, p<0.1]. No association was found between children's BLL and urinary 8-OH-dG. Interactions between dietary intakes of vitamin C or zinc and BLL on OS biomarkers were not consistent. However, when BLL and vitamin C or BLL and zinc were modeled together, BLL was independently associated with isoprostane concentration [β=0.10, p<0.05] but vitamin C or zinc intake was not. These findings suggest that there may be a potential adverse effect of BLL on OS in children with low-level Pb exposure. There is a need to study the effects of Pb on other OS measures, as well as the role of OS in mediating low-level Pb toxicity on functional outcomes.

Indexed as

8-Hydroxy-2'-DeoxyguanosineChildDeoxyguanosineEnvironmental ExposureF2-IsoprostanesFemaleHumansLeadMaleOxidative StressUruguay8-Hydroxy-2'-DeoxyguanosineDeoxyguanosineF2-IsoprostanesLead8-hydroxy-2-deoxy-guanosineChildDNA damageIsoprostaneLeadLipid peroxidationOxidative stressPbSchool-ageUruguay

Identifiers

PMID25863186
PMCPMC4492803
OpenAlexW2030161655

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.