Evidence map›Paper›PMID 23054994›Full record

ArticleEnvironmental health and preventive medicine2013

Serum levels of hydroxylated PCBs, PCBs and thyroid hormone measures of Japanese pregnant women.

Aya Hisada, Kazuhisa Shimodaira, Takashi Okai, Kiyohiko Watanabe, Hiroaki Takemori, Takumi Takasuga, Yumiko Noda, Miyako Shirakawa, Nobumasa Kato, Jun Yoshinaga

Abstract read
In one paragraph

Article in Environmental health and preventive medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Maternal Exposure to Pyrethroid Insecticides during Pregnancy and Infant Development at 18 Months of Age.International journal of environmental research and public health · 2017
    Article
  9. Article
  10. Article
  11. Metabolism and metabolites of polychlorinated biphenyls.Critical reviews in toxicology · 2015
    Review
  12. Review
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

10 authors.

Aya HisadaDepartment of Environmental Studies, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8563, Japan.
Kazuhisa Shimodaira
Takashi Okai
Kiyohiko Watanabe
Hiroaki Takemori
Takumi Takasuga
Yumiko Noda
Miyako Shirakawa
Nobumasa Kato
Jun Yoshinaga

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe purpose of this study was to investigate the associations between serum concentrations of hydroxylated PCBs (OH-PCBs) and PCBs and measures of thyroid hormone status of Japanese pregnant women.

methodsThe concentrations of free thyroxine (fT4), thyroid stimulating hormone (TSH), and thyroxine binding globulin (TBG) as well as 16 OH-PCB isomers and 29 PCB isomers were analyzed in the serum of 129 women sampled in the first trimester of gestation. Dietary and lifestyle information of the subjects was obtained by self-administered questionnaire. Multiple regression analysis was performed using measures of thyroid hormones as the dependent variable and serum levels of OH-PCBs/PCBs, urinary iodine concentration, and other potential covariates (age, BMI, smoking, etc.) as independent variables.

resultsGeometric mean (GM) concentration of the sum of 16 isomers of OH-PCBs was 120 pg/g wet wt. and that of 29 isomers of PCBs was 68 ng/g lipid wt., respectively, in the serum of the subjects. Iodine nutrition was considered adequate to high from urinary iodine level (GM, 370 μg/g creatinine). The mean concentration of TSH, fT4 and TBG was 1.34 ± 1.37 μIU/mL, 1.22 ± 0.16 ng/dL and 33.0 ± 6.4 μg/mL, respectively, with a small number of subjects who were outside the reference range. Multiple regression analysis revealed that serum concentrations of OH-PCBs/PCBs were not significantly associated with any of the measures of thyroid hormone status.

conclusionsExposure/body burden of OH-PCBs and PCBs at environmental levels does not have a measurable effect on thyroid hormones.

Indexed as

AdultChromatography, GasEnvironmental PollutantsFemaleHumansHydroxylationIodineJapanLuminescent MeasurementsMass SpectrometryMiddle AgedPolychlorinated BiphenylsPregnancyRadioimmunoassayThyroid HormonesYoung AdultEnvironmental PollutantsIodinePolychlorinated BiphenylsThyroid Hormones

Identifiers

PMID23054994
PMCPMC3650176

What OpenQuestion holds

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Registered trials

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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.