Evidence map›Paper›PMID 21398525›Full record

SynthesisDiabetes2011

FTO, type 2 diabetes, and weight gain throughout adult life: a meta-analysis of 41,504 subjects from the Scandinavian HUNT, MDC, and MPP studies.

Jens K Hertel, Stefan Johansson, Emily Sonestedt, Anna Jonsson, Rolv T Lie, Carl G P Platou, Peter M Nilsson, Gull Rukh, Kristian Midthjell, Kristian Hveem and 6 more

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in Diabetes, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 11 pooled it
10.2field-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

85 citing papers in PubMed, 11 syntheses or guidelines pooled it, 130 citations in OpenAlex.

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  6. Is the adiposity-associated FTO gene variant related to all-cause mortality independent of adiposity? Meta-analysis of data from 169,551 Caucasian adults.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2015
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  15. The CommonNutrients · 2026
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  16. Review
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  18. Comprehensive SNP-based evaluation of fat mass and obesity-associated geneJournal of diabetes and metabolic disorders · 2025
    Article
  19. Exploring the Association ofBiomolecules · 2025
    Article
  20. Article

25 more citing papers are in PubMed but not listed here.

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

16 authors at 7 institutions in 3 countries.

Jens K HertelDepartment of Clinical Medicine, University of Bergen, Bergen, Norway.
Stefan Johansson
Emily Sonestedt
Anna Jonsson
Rolv T Lie
Carl G P Platou
Peter M Nilsson
Gull Rukh
Kristian Midthjell
Kristian Hveem
Olle Melander
Leif Groop
Valeriya Lyssenko
Anders Molven
Marju Orho-Melander
Pål R Njølstad
Lund University · SEUniversity of Bergen · NONorwegian University of Science and Technology · NOHaukeland University Hospital · NOLevanger Hospital · NOMalmö University · SEUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFTO is the most important polygene identified for obesity. We aimed to investigate whether a variant in FTO affects type 2 diabetes risk entirely through its effect on BMI and how FTO influences BMI across adult life span. RESEARCH DESIGN AND

methodsThrough regression models, we assessed the relationship between the FTO single nucleotide polymorphisms rs9939609, type 2 diabetes, and BMI across life span in subjects from the Norwegian population-based HUNT study using cross-sectional and longitudinal perspectives. For replication and meta-analysis, we used data from the Malmö Diet and Cancer (MDC) and Malmö Preventive Project (MPP) cohorts, comprising a total sample of 41,504 Scandinavians.

resultsThe meta-analysis revealed a highly significant association for rs9939609 with both type 2 diabetes (OR 1.13; P = 4.5 × 10(-8)) and the risk to develop incident type 2 diabetes (OR 1.16; P = 3.2 × 10(-8)). The associations remained also after correction for BMI and other anthropometric measures. Furthermore, we confirmed the strong effect on BMI (0.28 kg/m(2) per risk allele; P = 2.0 × 10(-26)), with no heterogeneity between different age-groups. We found no differences in change of BMI over time according to rs9939609 risk alleles, neither overall (ΔBMI = 0.0 [-0.05, 0.05]) nor in any individual age stratum, indicating no further weight gain attributable to FTO genotype in adults.

conclusionsWe have identified that a variant in FTO alters type 2 diabetes risk partly independent of its observed effect on BMI. The additional weight gain as a result of the FTO risk variant seems to occur before adulthood, and the BMI difference remains stable thereafter.

Indexed as

Alpha-Ketoglutarate-Dependent Dioxygenase FTODiabetes Mellitus, Type 2FemaleGenetic Predisposition to DiseaseGenotypeHumansMalePolymorphism, Single NucleotideProteinsWeight GainWhite PeopleAlpha-Ketoglutarate-Dependent Dioxygenase FTOFTO protein, humanProteins

Identifiers

PMID21398525
PMCPMC3292341
OpenAlexW2158546156

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.