Evidence map›Paper›PMID 29740335›Full record

ArticleFrontiers in physiology2018

Amniotic Fluid INSL3 Measured During the Critical Time Window in Human Pregnancy Relates to Cryptorchidism, Hypospadias, and Phthalate Load: A Large Case-Control Study.

Ravinder Anand-Ivell, Arieh Cohen, Bent Nørgaard-Pedersen, Bo A G Jönsson, Jens-Peter Bonde, David M Hougaard, Christian H Lindh, Gunnar Toft, Morten S Lindhard, Richard Ivell

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Foetal Exposure to Phthalates and Endocrine Effects on the Leydig Cell.Basic & clinical pharmacology & toxicology · 2025
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Expression and Role of INSL3 in the Fetal Testis.Frontiers in endocrinology · 2022
    Review
  9. Review
  10. Review
  11. Review
  12. The Physiology of Reproduction -Frontiers in physiology · 2021
    Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Article
  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

10 authors at 5 institutions in 3 countries.

Ravinder Anand-IvellSchool of Biosciences, University of Nottingham, Nottingham, United Kingdom.
Arieh CohenSection of Neonatal Screening and Hormones, Department of Clinical Biochemistry and Immunology, Statens Serum Institut, Copenhagen, Denmark.
Bent Nørgaard-PedersenSection of Neonatal Screening and Hormones, Department of Clinical Biochemistry and Immunology, Statens Serum Institut, Copenhagen, Denmark.
Bo A G JönssonDivision of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden.
Jens-Peter BondeDepartment of Occupational and Environmental Medicine, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.
David M HougaardSection of Neonatal Screening and Hormones, Department of Clinical Biochemistry and Immunology, Statens Serum Institut, Copenhagen, Denmark.
Christian H LindhDivision of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden.
Gunnar ToftDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Morten S LindhardPerinatal Epidemiology Research Unit, Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark.
Richard IvellSchool of Biosciences, University of Nottingham, Nottingham, United Kingdom.
Statens Serum Institut · DKAarhus University Hospital · DKLund University · SEUniversity of Nottingham · GBBispebjerg Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The period of the first to second trimester transition in human pregnancy represents a sensitive window for fetal organogenesis, particularly in regard to the development of the male reproductive system. This is a time of relative analytical inaccessibility. We have used a large national biobank of amniotic fluid samples collected at routine amniocentesis to determine the impacts of exogenous endocrine disruptor load on specific fetal biomarkers at this critical time. While adrenal and testicular steroids are highly correlated, they are also mostly positively influenced by increasing phthalate load, represented by the metabolites 7cx-MMeHP and 5cx-MEPP, by perfluorooctane sulfonate (PFOS) exposure, and by smoking, suggesting an adrenal stress response. In contrast, the testis specific biomarkers insulin-like peptide 3 (INSL3) and androstenedione are negatively impacted by the phthalate endocrine disruptors. Using a case-control design, we show that cryptorchidism and hypospadias are both significantly associated with increased amniotic concentration of INSL3 during gestational weeks 13-16, and some, though not all steroid biomarkers. Cases are also linked to a specifically increased variance in the Leydig cell biomarker INSL3 compared to controls, an effect exacerbated by maternal smoking. No influence of phthalate metabolites or PFOS was evident on the distribution of cases and controls. Considering that several animal and human studies have shown a negative impact of phthalate load on fetal and cord blood INSL3, respectively, the present results suggest that such endocrine disruptors may rather be altering the relative dynamics of testicular development and consequent hormone production, leading to a desynchronization of tissue organization during fetal development. Being born small for gestational age appears not to impact on the testicular biomarker INSL3 in second trimester amniotic fluid.

Indexed as

amniotic fluidcryptorchidismfetal steroidshypospadiasINSL3PFOSphthalatetesticular dysgenesis syndrome

Identifiers

PMID29740335
PMCPMC5928321
OpenAlexW2800203169

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.