Evidence map›Paper›PMID 29467407›Full record

ArticleScientific reports2018

Maternal obesity-induced decreases in plasma, hepatic and uterine polyunsaturated fatty acids during labour is reversed through improved nutrition at conception.

Ronan Muir, Ge Liu, Raheela Khan, Anatoly Shmygol, Siobhan Quenby, Robert Alan Gibson, Beverly Muhlhausler, Matthew Elmes

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 37% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Overweight, obesity and excessive weight gain in pregnancy as risk factors for adverse pregnancy outcomes: A narrative review.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2022
    Review
  4. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Ronan MuirDivision of Nutritional Science, School of Bioscience, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, England, United Kingdom.
Ge LiuHealthy Mothers, Babies and Children's Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.
Raheela KhanGraduate School of Medicine, University of Nottingham, Royal Derby Hospital, Uttoxeter Road, Derby, DE22 3DT, England, United Kingdom.
Anatoly ShmygolDepartment of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, P. O. Box 17666, UAE.
Siobhan QuenbyBiomedical Research Unit in Reproductive Health, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, CV2 2DX, Warwickshire, United Kingdom.
Robert Alan GibsonHealthy Mothers, Babies and Children's Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.
Beverly MuhlhauslerHealthy Mothers, Babies and Children's Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.
Matthew ElmesDivision of Nutritional Science, School of Bioscience, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, England, United Kingdom. matthew.elmes@nottingham.ac.uk.ORCID 0000-0002-5456-080X
University of Nottingham · GBWine Australia · AUSouth Australian Health and Medical Research Institute · AUUnited Arab Emirates University · AEUniversity Hospitals Coventry and Warwickshire NHS Trust · GB

Funding

Biotechnology and Biological Sciences Research Council BB/J014508/1
6 · The paper itself

Abstract

Maternal obesity is associated with prolonged and dysfunctional labour, potentially through decreased synthesis of prostaglandins that stimulate myometrial contractions. We assessed the impact of maternal obesity on concentrations of precursor fatty acids (FA) for prostaglandin synthesis and whether any changes could be reversed by improved nutrition post-conception. Wistar rats were fed control (CON) or High-Fat, High-cholesterol (HFHC) diets 6 weeks before mating. At conception half the dams switched diets providing 4 dietary groups: (1) CON, (2) HFHC, (3) CON-HFHC or (4) HFHC-CON. During parturition rats were euthanized and FA composition of plasma, liver and uterus determined. Visceral fat was doubled in rats exposed to the HFHC diet prior to and/or during pregnancy compared to CON. HFHC diet increased MUFAs but decreased omega-3 and omega-6 PUFAs in plasma and liver. Uterine omega-3 FA concentrations were halved in HFHC versus CON rats, but all other FAs were similar. Switching from HFHC to CON diet at conception restored all FA profiles to those seen in CON rats. The increased MUFA and decreased PUFA concentrations in obese HFHC dams may contribute to aberrant prostaglandin synthesis and dysfunctional myometrial activity and it may be possible to reverse these changes, and potentially improve labour outcomes, by improving nutrition at conception.

Indexed as

AnimalsCholesterolDiet, High-FatFatty Acids, Omega-3Fatty Acids, UnsaturatedFemaleFertilizationLabor, ObstetricLiverNutritional StatusObesityParturitionPregnancyRatsRats, WistarUterusCholesterolFatty Acids, Omega-3Fatty Acids, Unsaturated

Identifiers

PMID29467407
PMCPMC5821893
OpenAlexW2793698145

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.