Evidence map›Paper›PMID 33569631›Full record

ReviewDiabetologia2021

Two decades since the fetal insulin hypothesis: what have we learned from genetics?

Alice E Hughes, Andrew T Hattersley, Sarah E Flanagan, Rachel M Freathy

Open access · hybridAbstract readReview
In one paragraph

Review in Diabetologia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
11.7field-weighted citation impact, top 1% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Permanent Neonatal Diabetes with High Insulin Requirements due to a New Variant in theJournal of clinical research in pediatric endocrinology · 2026
    Article
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  20. Insulin signaling in development.Development (Cambridge, England) · 2023
    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

4 authors at 1 institution in 1 country.

Alice E HughesInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.ORCID 0000-0003-1352-4447
Andrew T HattersleyInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.ORCID 0000-0001-5620-473X
Sarah E FlanaganInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.ORCID 0000-0002-8670-6340
Rachel M FreathyInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK. r.freathy@exeter.ac.uk.ORCID 0000-0003-4152-2238
University of Exeter · GB

Funding

Department of HealthWellcome TrustWellcome Trust 104150/Z/14/ZWellcome Trust 105636/Z/14/ZWellcome Trust WT098395/Z/12/Z
6 · The paper itself

Abstract

In 1998 the fetal insulin hypothesis proposed that lower birthweight and adult-onset type 2 diabetes are two phenotypes of the same genotype. Since then, advances in research investigating the role of genetics affecting insulin secretion and action have furthered knowledge of fetal insulin-mediated growth and the biology of type 2 diabetes. In this review, we discuss the historical research context from which the fetal insulin hypothesis originated and consider the position of the hypothesis in light of recent evidence. In summary, there is now ample evidence to support the idea that variants of certain genes which result in impaired pancreatic beta cell function and reduced insulin secretion contribute to both lower birthweight and higher type 2 diabetes risk in later life when inherited by the fetus. There is also evidence to support genetic links between type 2 diabetes secondary to reduced insulin action and lower birthweight but this applies only to loci implicated in body fat distribution and not those influencing insulin resistance via obesity or lipid metabolism by the liver. Finally, we also consider how advances in genetics are being used to explore alternative hypotheses, namely the role of the maternal intrauterine environment, in the relationship between lower birthweight and adult cardiometabolic disease.

Indexed as

Infant, Low Birth WeightMutationAnimalsBirth WeightDiabetes Mellitus, Type 2Fetal Growth RetardationGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansInfant, NewbornInsulinInsulin ResistanceInsulin-Secreting CellsMendelian Randomization AnalysisPhenotypeRisk AssessmentInsulinBirthweightFetal growth restrictionFetal insulinGenome-wide association studiesMendelian randomisationNeonatal diabetesPregnancyReviewType 2 diabetes

Identifiers

PMID33569631
PMCPMC7940336
OpenAlexW3127701689

What OpenQuestion holds

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LicenceCC BY
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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.