Evidence map›Paper›PMID 28111093›Full record

ArticleReproductive toxicology (Elmsford, N.Y.)2017

Effects of perfluorinated chemicals on thyroid function, markers of ovarian reserve, and natural fertility.

Natalie M Crawford, Suzanne E Fenton, Mark Strynar, Erin P Hines, David A Pritchard, Anne Z Steiner

Abstract read
In one paragraph

Article in Reproductive toxicology (Elmsford, N.Y.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 5 pooled it
–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

23 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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  15. Perfluoroalkyl Chemicals and Male Reproductive Health: Do PFOA and PFOS Increase Risk for Male Infertility?International journal of environmental research and public health · 2021
    Review
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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

6 authors.

Natalie M CrawfordDepartment of Obstetrics and Gynecology, University of North Carolina, 4001 Old Campus Building, CB 7570, Chapel Hill, NC 27599, USA. Electronic address: nmcraw@gmail.com.
Suzanne E FentonDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA.
Mark StrynarThe National Exposure Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
Erin P HinesNational Center for Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
David A PritchardDepartment of Biostatistics, University of North Carolina, 3101 McGavran-Greenberg Hall, CB 7420, Chapel Hill, NC 27599, USA.
Anne Z SteinerDepartment of Obstetrics and Gynecology, University of North Carolina, 4001 Old Campus Building, CB 7570, Chapel Hill, NC 27599, USA. Electronic address: anne_steiner@med.unc.edu.

Funding

Mammary Gland as a Sensitive End Point to Effects of Endocrine DisruptorsZIAES102785 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FENTON, SUZANNE · 2010 to 2021
$38.1M
Biomarkers of InfertilityR01HD067683 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI STEINER, ANNE ZWEIFEL · 2011 to 2015
$2.7M
Time to ConceiveR21HD060229 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI STEINER, ANNE ZWEIFEL · 2009 to 2010
$407k
NICHD NIH HHS R01 HD067683NICHD NIH HHS R21 HD060229
6 · The paper itself

Abstract

Perfluorinated chemicals (PFCs) can act as endocrine-disrupting chemicals, but there has been limited study of their effects on ovarian reserve or fecundability. 99 women, 30-44 years old, without infertility were followed until pregnancy. Initially, serum was evaluated for Antimullerian hormone (AMH), thyroid hormones: thyroid stimulating hormone (TSH), thyroxine (T4), free thyroxine (fT4), and triiodothyronine (T3), and PFCs: perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS), perfluorononanoic acid (PFNA), and perfluorohexanesulfonic acid (PFHxS). Bivariate analyses assessed the relationship between thyroid hormones, AMH, and PFCs. Fecundability ratios (FR) were determined for each PFC using a discrete time-varying Cox model and a day-specific probability model. PFC levels were positively correlated with each other (r 0.24-0.90), but there was no correlation with TSH (r 0.02-0.15) or AMH (r -0.01 to -0.15). FR point estimates for each PFC were neither strong nor statistically significant. Although increased exposure to PFCs correlates with thyroid hormone levels, there is no significant association with fecundability or ovarian reserve.

Indexed as

AdultAlkanesulfonic AcidsCaprylatesEndocrine DisruptorsEnvironmental MonitoringEnvironmental PollutantsFatty AcidsFemaleFertilityFluorocarbonsHumansOvarian ReserveSulfonic AcidsThyroid GlandThyroid HormonesAlkanesulfonic AcidsCaprylatesEndocrine DisruptorsEnvironmental PollutantsFatty AcidsFluorocarbonsperfluorohexanesulfonic acidperfluoro-n-nonanoic acidperfluorooctane sulfonic acidperfluorooctanoic acidSulfonic AcidsThyroid HormonesEndocrine disrupting chemicalsFecundabilityOvarian reservePerfluorinated chemicalsThyroid hormones

Identifiers

PMID28111093
PMCPMC5690561

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.