Evidence map›Paper›PMID 21327641›Full record

ArticleArchives of environmental contamination and toxicology2011

δ-Aminolevulinic acid dehydratase single nucleotide polymorphism 2 and peptide transporter 2*2 haplotype may differentially mediate lead exposure in male children.

Christina Sobin, Natali Parisi, Tanner Schaub, Marisela Gutierrez, Alma X Ortega

Open access · greenAbstract read
In one paragraph

Article in Archives of environmental contamination and toxicology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.1field-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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  5. Colorimetric Determination of PbJournal of fluorescence · 2017
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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.

Christina SobinToxicology Project, Border Biomedical Research Center, University of Texas, El Paso, TX, USA. casobin@utep.edu
Natali Parisi
Tanner Schaub
Marisela Gutierrez
Alma X Ortega
New Mexico State University · USBorder Network for Human Rights · USThe University of Texas at El Paso · US

Funding

TOXICOLOGY PROJECTG12RR008124 · NCRR · UNIVERSITY OF TEXAS EL PASO · PI WALSH, ELIZABETH J · 1992 to 2011
$20.8M
Lead, Genes, and Cognition in Underserved ChildrenR21HD060120 · NICHD · UNIVERSITY OF TEXAS EL PASO · PI SOBIN, CHRISTINA · 2009 to 2010
$488k
NCRR NIH HHS 5G12RR008124NCRR NIH HHS G12 RR008124NICHD NIH HHS R21 HD060120NICHD NIH HHS R21HD060120
6 · The paper itself

Abstract

Child low-level lead (Pb) exposure is an unresolved public health problem and an unaddressed child health disparity. Particularly in cases of low-level exposure, source removal can be impossible to accomplish, and the only practical strategy for reducing risk may be primary prevention. Genetic biomarkers of increased neurotoxic risk could help to identify small subgroups of children for early intervention. Previous studies have suggested that, by way of a distinct mechanism, δ-aminolevulinic acid dehydratase single nucleotide polymorphism 2 (ALAD(2)) and/or peptide transporter 2*2 haplotype (hPEPT2*2) increase Pb blood burden in children. Studies have not yet examined whether sex mediates the effects of genotype on blood Pb burden. Also, previous studies have not included blood iron (Fe) level in their analyses. Blood and cheek cell samples were obtained from 306 minority children, ages 5.1 to 12.9 years. (208)Pb and (56)Fe levels were determined with inductively coupled plasma-mass spectrometry. General linear model analyses were used to examine differences in Pb blood burden by genotype and sex while controlling for blood Fe level. The sample geometric mean Pb level was 2.75 μg/dl. Pb blood burden was differentially higher in ALAD(2) heterozygous boys and hPEPT2*2 homozygous boys. These results suggest that the effect of ALAD(2) and hPEPT2*2 on Pb blood burden may be sexually dimorphic. ALAD(2) and hPEPT2*2 may be novel biomarkers of health and mental health risks in male children exposed to low levels of Pb.

Indexed as

HaplotypesPolymorphism, Single NucleotideBody BurdenBrainChildChild, PreschoolEnvironmental MonitoringFemaleGenetic MarkersGenetic Predisposition to DiseaseHumansIronLeadLinear ModelsMalePorphobilinogen SynthaseGenetic Markershydrogen-coupled oligopeptide transporter PepT2IronLeadPorphobilinogen SynthaseSymporters

Identifiers

PMID21327641
PMCPMC3188358
OpenAlexW2054033074

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.