Evidence map›Paper›PMID 27870155›Full record

ArticleJournal of neuroendocrinology2016

Timing of Maternal Exposure and Foetal Sex Determine the Effects of Low-level Chemical Mixture Exposure on the Foetal Neuroendocrine System in Sheep.

M Bellingham, P A Fowler, E S MacDonald, B Mandon-Pepin, C Cotinot, S Rhind, R M Sharpe, N P Evans

Open access · hybridAbstract read
In one paragraph

Article in Journal of neuroendocrinology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.6field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Effect of environmental contamination on male and female gametes.The Journal of reproduction and development · 2026
    Review
  3. Article
  4. Article
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  12. Article
  13. Review
  14. Female Fertility and Environmental Pollution.International journal of environmental research and public health · 2020
    Review
  15. 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

8 authors at 6 institutions in 2 countries.

M BellinghamInstitute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK.
P A FowlerDivision of Applied Medicine, Centre for Reproductive Endocrinology and Medicine, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK.
E S MacDonaldInstitute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK.
B Mandon-PepinUMR BDR, Universite Paris Saclay, Paris, France.
C CotinotUMR BDR, Universite Paris Saclay, Paris, France.
S RhindJames Hutton Institute, Aberdeen, UK.
R M SharpeMRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK.
N P EvansInstitute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK.
University of Glasgow · GBJames Hutton Institute · GBLaboratoire de Biologie du Développement · FRMRC Centre for Reproductive Health · GBUniversité Paris-Saclay · FRUniversity of Aberdeen · GB

Funding

Medical Research Council G1100358Wellcome TrustWellcome Trust 080388
6 · The paper itself

Abstract

We have shown that continuous maternal exposure to the complex mixture of environmental chemicals (ECs) found in human biosolids (sewage sludge), disrupts mRNA expression of genes crucial for development and long-term regulation of hypothalamic-pituitary gonadal (HPG) function in sheep. The present study investigated whether exposure to ECs only during preconceptional period or only during pregnancy perturbed key regulatory genes within the hypothalamus and pituitary gland and whether these effects were different from chronic (life-long) exposure to biosolid ECs. The findings demonstrate that the timing and duration of maternal EC exposure influences the subsequent effects on the foetal neuroendocrine system in a sex-specific manner. Maternal exposure prior to conception, or during pregnancy only, altered the expression of key foetal neuroendocrine regulatory systems such as gonadotrophin-releasing hormone and kisspeptin to a greater extent than when maternal exposure was 'life-long'. Furthermore, hypothalamic gene expression was affected to a greater extent in males than in females and, following EC exposure, male foetuses expressed more 'female-like' mRNA levels for some key neuroendocrine genes. This is the first study to show that 'real-life' maternal exposure to low levels of a complex cocktail of chemicals prior to conception can subsequently affect the developing foetal neuroendocrine system. These findings demonstrate that the developing neuroendocrine system is sensitive to EC mixtures in a sex-dimorphic manner likely to predispose to reproductive dysfunction in later life.

Indexed as

Maternal ExposureSex CharacteristicsAnimalsArcuate Nucleus of HypothalamusEndocrine DisruptorsEstrogen Receptor alphaFemaleGonadotropin-Releasing HormoneKisspeptinsMaleNeurosecretory SystemsPituitary GlandPregnancyPrenatal Exposure Delayed EffectsPreoptic AreaReceptors, Aryl HydrocarbonEndocrine DisruptorsEstrogen Receptor alphaGonadotropin-Releasing HormoneKisspeptinsReceptors, Aryl HydrocarbonReceptors, Kisspeptin-1Receptors, LHRHRNA, Messengerendocrine disruptorsfoetalGnRHhypothalamuskisspeptinoestrogen receptor

Identifiers

PMID27870155
PMCPMC5621486
OpenAlexW2551195925

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.