Evidence map›Paper›PMID 37494602›Full record

ArticleDiabetes care2023

Bidirectional Mendelian Randomization and Multiphenotype GWAS Show Causality and Shared Pathophysiology Between Depression and Type 2 Diabetes.

Jared G Maina, Zhanna Balkhiyarova, Arie Nouwen, Igor Pupko, Anna Ulrich, Mathilde Boissel, Amélie Bonnefond, Philippe Froguel, Amna Khamis, Inga Prokopenko and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes care, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
49.2field-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

65 citing papers in PubMed, 1 synthesis or guideline pooled it, 155 citations in OpenAlex.

  1. Identification ofDepression and anxiety · 2025
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5 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

11 authors at 4 institutions in 2 countries.

Jared G MainaINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.
Zhanna BalkhiyarovaDepartment of Clinical and Experimental Medicine, University of Surrey, Guildford, U.K.
Arie NouwenDepartment of Psychology, Middlesex University, London, U.K.ORCID 0000-0002-0609-4082
Igor PupkoDepartment of Clinical and Experimental Medicine, University of Surrey, Guildford, U.K.
Anna UlrichDepartment of Metabolism, Digestion and Reproduction, Imperial College London, London, U.K.
Mathilde BoisselINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.
Amélie BonnefondINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.
Philippe FroguelINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.ORCID 0000-0003-2972-0784
Amna KhamisINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.ORCID 0000-0003-1709-304X
Inga ProkopenkoINSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.ORCID 0000-0003-1624-7457
Marika KaakinenDepartment of Clinical and Experimental Medicine, University of Surrey, Guildford, U.K.ORCID 0000-0002-9228-0462
Centre National de la Recherche Scientifique · FRUniversity of Surrey · GBImperial College London · GBMiddlesex University · GB

Funding

Diabetes UK 20/0006307
6 · The paper itself

Abstract

objectiveDepression is a common comorbidity of type 2 diabetes. We assessed the causal relationships and shared genetics between them. RESEARCH DESIGN AND

methodsWe applied two-sample, bidirectional Mendelian randomization (MR) to assess causality between type 2 diabetes and depression. We investigated potential mediation using two-step MR. To identify shared genetics, we performed 1) genome-wide association studies (GWAS) separately and 2) multiphenotype GWAS (MP-GWAS) of type 2 diabetes (19,344 case subjects, 463,641 control subjects) and depression using major depressive disorder (MDD) (5,262 case subjects, 86,275 control subjects) and self-reported depressive symptoms (n = 153,079) in the UK Biobank. We analyzed expression quantitative trait locus (eQTL) data from public databases to identify target genes in relevant tissues.

resultsMR demonstrated a significant causal effect of depression on type 2 diabetes (odds ratio 1.26 [95% CI 1.11-1.44], P = 5.46 × 10-4) but not in the reverse direction. Mediation analysis indicated that 36.5% (12.4-57.6%, P = 0.0499) of the effect from depression on type 2 diabetes was mediated by BMI. GWAS of type 2 diabetes and depressive symptoms did not identify shared loci. MP-GWAS identified seven shared loci mapped to TCF7L2, CDKAL1, IGF2BP2, SPRY2, CCND2-AS1, IRS1, CDKN2B-AS1. MDD has not brought any significant association in either GWAS or MP-GWAS. Most MP-GWAS loci had an eQTL, including single nucleotide polymorphisms implicating the cell cycle gene CCND2 in pancreatic islets and brain and the insulin signaling gene IRS1 in adipose tissue, suggesting a multitissue and pleiotropic underlying mechanism.

conclusionsOur results highlight the importance to prevent type 2 diabetes at the onset of depressive symptoms and the need to maintain a healthy weight in the context of its effect on depression and type 2 diabetes comorbidity.

Indexed as

Diabetes Mellitus, Type 2Major Depressive DisorderDepressionGenome-Wide Association StudyHumansIntracellular Signaling Peptides and ProteinsMembrane ProteinsMendelian Randomization AnalysisPolymorphism, Single NucleotideRNA-Binding ProteinsIGF2BP2 protein, humanIntracellular Signaling Peptides and ProteinsMembrane ProteinsRNA-Binding ProteinsSPRY2 protein, human

Identifiers

PMID37494602
PMCPMC10465984
OpenAlexW4385284623

What OpenQuestion holds

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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.