Evidence map›Paper›PMID 21803321›Full record

ArticleAmerican journal of obstetrics and gynecology2011

Maternal tobacco use is associated with increased markers of oxidative stress in the placenta.

Elena Sbrana, Melissa A Suter, Adi R Abramovici, Hal K Hawkins, Joan E Moss, Lauren Patterson, Cynthia Shope, Kjersti Aagaard-Tillery

Open access · greenAbstract read
In one paragraph

Article in American journal of obstetrics and gynecology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.6field-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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
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  7. Machine learning-enhanced surface-enhanced spectroscopic detection of polycyclic aromatic hydrocarbons in the human placenta.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

8 authors at 2 institutions in 1 country.

Elena SbranaDepartment of Pathology, University of Texas Medical Branch, Galveston, TX, USA.
Melissa A Suter
Adi R Abramovici
Hal K Hawkins
Joan E Moss
Lauren Patterson
Cynthia Shope
Kjersti Aagaard-Tillery
Baylor College of Medicine · USThe University of Texas Medical Branch at Galveston · US

Funding

Research Education and Career Horizons ProgramK12GM084897 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI SIFERS, RICHARD NORMAN, SLAUGHTER, GAYLE · 2008 to 2016
$8.3M
Characterization of the Fetal Primate Epigenome and Metabolome Under In UteroDP2OD001500 · OD · BAYLOR COLLEGE OF MEDICINE · PI AAGAARD, KJERSTI MARIE · 2007 to 2011
$2.3M
Maternal Diet Modifies the Fetal Primate Epigenome and Circadian Gene ExpressionR01DK080558 · NIDDK · UNIVERSITY OF UTAH · PI LANE, ROBERT H · 2007 to 2010
$987k
NIDDK NIH HHS R01 DK080558NIDDK NIH HHS R01DK080558-01NIGMS NIH HHS K12 GM084897NIH HHS DP2120OD001500-01NIH HHS DP2 OD001500
6 · The paper itself

Abstract

objectiveWe sought to extend our prior observations and histopathologically characterize key metabolic enzymes (CYP1A1) with markers of oxidative damage in the placental sections from smokers. STUDY

designPlacental specimens were collected from term singleton deliveries from smokers (n = 10) and nonsmokers (n = 10) and subjected to a detailed histopathological examination. To quantify the extent of oxidative damage, masked score-graded (0-6) histopathology against 4-hydroxy-2-nonenal (4-HNE) and 8-hydroxydeoxyguanisine (8-OHdG) was performed. Minimal significance (P < .05) was determined with a Fisher's exact and a 2-tailed Student t test as appropriate.

resultsWe observed a significant increase in the presence of syncytial knots in placentas from smokers (70% vs 10%, P = .02). These gross observations were accompanied by a significant aberrant placental aromatic hydrocarbon metabolism (increased CYP1A1, 4.4 vs 2.1, P = .002) in addition to evidence of oxidative damage (4-HNE 3.4 vs 1.1, P = .00005; 8-OHdG 4.9 vs 3.1, P = .0038).

conclusionWe observed a strong association between maternal tobacco use and aberrant placental metabolism, syncytial knot formation, and multiple markers of oxidative damage.

Indexed as

SmokingAdultBiomarkersBody Mass IndexCohort StudiesFemaleHumansOxidative StressPlacentaPregnancyBiomarkers

Identifiers

PMID21803321
PMCPMC3246681
OpenAlexW2084050583

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.