Evidence map›Paper›PMID 17356525›Full record

SynthesisInternational journal of obesity (2005)2007

The V103I polymorphism of the MC4R gene and obesity: population based studies and meta-analysis of 29 563 individuals.

E H Young, N J Wareham, S Farooqi, A Hinney, J Hebebrand, A Scherag, S O'rahilly, I Barroso, M S Sandhu

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in International journal of obesity (2005), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 2 pooled it
7.4field-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, 2 syntheses or guidelines pooled it, 147 citations in OpenAlex.

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  3. Dietary Protein Modifies the Effect of theThe Journal of nutrition · 2017
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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

9 authors at 6 institutions in 2 countries.

E H YoungMRC Epidemiology Unit, Strangeways Research Laboratory, Cambridge, UK. elizabeth.young@mrc-epid.cam.ac.uk
N J Wareham
S Farooqi
A Hinney
J Hebebrand
A Scherag
S O'rahilly
I Barroso
M S Sandhu
MRC Epidemiology Unit · GBNational Institute for Health Research · GBUniversity of Duisburg-Essen · DEPhilipps University of Marburg · DEUniversity of Cambridge · GBWellcome Sanger Institute · GB

Funding

Medical Research Council G0100103Medical Research Council G9824984Medical Research Council MC_U106179471Medical Research Council MC_U106188470Wellcome Trust 068086Wellcome Trust 077016
6 · The paper itself

Abstract

backgroundPrevious studies have suggested that a variant in the melanocortin-4 receptor (MC4R) gene is important in protecting against common obesity. Larger studies are needed, however, to confirm this relation.

methodsWe assessed the association between the V103I polymorphism in the MC4R gene and obesity in three UK population based cohort studies, totalling 8304 individuals. We also did a meta-analysis of relevant studies, involving 10 975 cases and 18 588 controls, to place our findings in context. FINDING: In an analysis of all studies, individuals carrying the isoleucine allele had an 18% (95% confidence interval 4-30%, P=0.015) lower risk of obesity compared with non-carriers. There was no heterogeneity among studies and no apparent publication bias.

interpretationThis study confirms that the V103I polymorphism protects against human obesity at a population level. As such it provides proof of principle that specific gene variants may, at least in part, explain susceptibility and resistance to common forms of human obesity. A better understanding of the mechanisms underlying this association will help determine whether changes in MC4R activity have therapeutic potential.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticAllelesBody Mass IndexCohort StudiesGenetics, PopulationHeterozygoteHumansMaleMiddle AgedObesityPhenotypeReceptor, Melanocortin, Type 4Receptor, Melanocortin, Type 4

Identifiers

PMID17356525
PMCPMC2683751
OpenAlexW1992149371

What OpenQuestion holds

Textmetadata
LicenceTDM
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.