Evidence map›Paper›PMID 20092643›Full record

ArticleBMC medical genetics2010

Large effects on body mass index and insulin resistance of fat mass and obesity associated gene (FTO) variants in patients with polycystic ovary syndrome (PCOS).

Susanne Tan, André Scherag, Onno Eilard Janssen, Susanne Hahn, Harald Lahner, Tiina Dietz, Susann Scherag, Harald Grallert, Carla Ivane Ganz Vogel, Rainer Kimmig and 4 more

Abstract read
In one paragraph

Article in BMC medical genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
–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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

14 authors.

Susanne TanDepartment of Child and Adolescent Psychiatry, University of Duisburg-Essen, Essen, Germany.
André Scherag
Onno Eilard Janssen
Susanne Hahn
Harald Lahner
Tiina Dietz
Susann Scherag
Harald Grallert
Carla Ivane Ganz Vogel
Rainer Kimmig
Thomas Illig
Klaus Mann
Johannes Hebebrand
Anke Hinney

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe polycystic ovary syndrome (PCOS), a common endocrine disorder in women of child-bearing age, mainly characterised by chronic anovulation and hyperandrogenism, is often associated with insulin resistance (IR) and obesity. Its etiology and the role of IR and obesity in PCOS are not fully understood. We examined the influence of validated genetic variants conferring susceptibility to obesity and/or type 2 diabetes mellitus (T2DM) on metabolic and PCOS-specific traits in patients with PCOS.

methodsWe conducted an association study in 386 patients with PCOS (defined by the Rotterdam-criteria) using single nucleotide polymorphisms (SNPs) in or in proximity to the fat mass and obesity associated gene (FTO), insulin-induced gene-2 (INSIG2), transcription factor 7-like 2 gene (TCF7L2) and melanocortin 4 receptor gene (MC4R). To compare the effect of FTO obesity risk alleles on BMI in patients with PCOS to unselected females of the same age range we genotyped 1,971 females from the population-based KORA-S4 study (Kooperative Gesundheitsforschung im Raum Augsburg, Survey 4).

resultsThe FTO risk allele was associated with IR traits and measures of increased body weight. In addition, the TCF7L2 SNP was associated with body weight traits. For the SNPs in the vicinity of INSIG2 and MC4R and for the other examined phenotypes there was no evidence for an association. In PCOS the observed per risk allele effect of FTO intron 1 SNP rs9939609 on BMI was +1.56 kg/m2, whereas it was +0.46 kg/m2 in females of the same age range from the general population as shown previously.

conclusionThe stronger effect on body weight of the FTO SNP in PCOS might well have implications for the etiology of the disease.

Indexed as

Genetic VariationAdultAgedAlpha-Ketoglutarate-Dependent Dioxygenase FTOBase SequenceBody Mass IndexDNA PrimersFemaleGenetic Association StudiesGenotypeHumansInsulin ResistanceIntracellular Signaling Peptides and ProteinsIntronsMembrane ProteinsMiddle AgedAlpha-Ketoglutarate-Dependent Dioxygenase FTODNA PrimersFTO protein, humanINSIG2 protein, humanIntracellular Signaling Peptides and ProteinsMC4R protein, humanMembrane ProteinsProteinsReceptor, Melanocortin, Type 4TCF7L2 protein, humanTCF Transcription FactorsTranscription Factor 7-Like 2 Protein

Identifiers

PMID20092643
PMCPMC2824654

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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.