Evidence map›Paper›PMID 29352147›Full record

ArticleScientific reports2018

Pre-conception maternal erythrocyte saturated to unsaturated fatty acid ratio predicts pregnancy after natural cycle frozen embryo transfer.

Christopher C Onyiaodike, Heather M Murray, Ruiqi Zhang, Barbara J Meyer, Fiona Jordan, E Ann Brown, Robert J B Nibbs, Helen Lyall, Naveed Sattar, Scott M Nelson and 1 more

Abstract 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. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

11 authors.

Christopher C OnyiaodikeSchool of Medicine, University of Glasgow, Glasgow, UK.
Heather M MurrayRobertson Centre for Biostatistics, University of Glasgow, Glasgow, UK.
Ruiqi ZhangRobertson Centre for Biostatistics, University of Glasgow, Glasgow, UK.
Barbara J MeyerSchool of Medicine, Metabolic Research Centre, University of Wollongong, Wollongong, NSW, Australia.
Fiona JordanInstitute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
E Ann BrownSchool of Medicine, University of Glasgow, Glasgow, UK.
Robert J B NibbsInstitute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
Helen LyallSchool of Medicine, University of Glasgow, Glasgow, UK.
Naveed SattarInstitute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
Scott M NelsonSchool of Medicine, University of Glasgow, Glasgow, UK.
Dilys J FreemanInstitute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK. dilys.freeman@glasgow.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The environment for embryo implantation and fetal growth and development is affected by maternal nutritional, metabolic and health status. The aim of this prospective, cohort study was to test whether plasma metabolic and inflammatory biomarkers can predict pregnancy resulting from in vitro fertilisation (IVF). Women with a natural menstrual cycle undergoing frozen embryo transfer (FET) were recruited and fasting baseline blood samples were collected a mean of 3.4 days prior to the luteinising hormone (LH) surge and a non-fasting blood sample was taken on the day of FET. Ongoing pregnancy was defined by positive fetal heartbeat on ultrasound scan at day 45 post LH surge. Thirty-six pregnancies resulted from FET in 143 women. In an overall stepwise multivariable analysis, erythrocyte saturated to unsaturated fatty acid ratio was positively associated with ongoing pregnancy. A similar model incorporating day of FET covariates found that erythrocyte saturated to unsaturated fatty acid ratio, erythrocyte fatty acid average chain length and plasma log-triglycerides predicted ongoing pregnancy. In conclusion, a higher peri-conceptional saturated to unsaturated fatty acid ratio predicted ongoing pregnancy after natural cycle frozen embryo transfer and may reflect a maternal nutritional status that facilitates pregnancy success in this assisted conception scenario.

Indexed as

Embryo TransferMenstrual CyclePregnancy RateBiomarkersEmbryo ImplantationEnergy MetabolismErythrocytesFatty AcidsFemaleFertilizationFertilization in VitroHumansInflammation MediatorsOdds RatioPregnancyPrognosisBiomarkersFatty AcidsInflammation Mediators

Identifiers

PMID29352147
PMCPMC5775249

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.