Evidence map›Paper›PMID 27681093›Full record

ArticleObesity surgery2017

Heterozygosity for the rs696217 SNP in the Preproghrelin Gene Predicts Weight Loss After Bariatric Surgery in Severely Obese Individuals.

Edoardo Vitolo, Eleonora Santini, Marta Seghieri, Livia Giannini, Fabio Coppedè, Chiara Rossi, Angela Dardano, Anna Solini

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Article in Obesity surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. Pooled it
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  7. Article
  8. Article
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  13. Precision medicine in adult and pediatric obesity: a clinical perspective.Therapeutic advances in endocrinology and metabolism · 2019
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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

8 authors.

Edoardo VitoloDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Eleonora SantiniDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Marta SeghieriDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Livia GianniniDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Fabio CoppedèDepartment of Translational Research and New Technologies in Medicine and Surgery, Section of Medical Genetics, University of Pisa, Pisa, Italy.
Chiara RossiDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Angela DardanoDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
Anna SoliniDepartment of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy. anna.solini@med.unipi.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral patients encompass a scarce weight loss after Roux-en-Y gastric bypass (RYGB). As such event is not related to surgical complications, finding markers able to identify "well responders" and to predict weight loss outcome is clinically relevant. Ghrelin regulates appetite and energy balance. Common single nucleotide polymorphisms (SNPs) in its encoding genes have been associated with body weight regulation. Other peptides involved in satiety modulation, like the CD40/CD40L complex, are less explored.

methodsOne hundred, otherwise healthy, obese subjects (aged 45 ± 11 years, 65 females, BMI 48.0 ± 0.7 kg/m

resultsSubjects carrying the rs696217 T allele encompassed a significantly greater reduction in BMI 52 weeks after surgery (GG vs GT 30.5 ± 1.1 vs 38.1 ± 2.1 %; p < 0.001). Carrying the rs1126535 C allele in the CD40L gene was associated with a significantly lower BMI reduction at week 52 (TT vs CT 33.2 ± 1.1 vs 28.1 ± 2.3 %, p = 0.049). rs490683 and rs27647 SNPs of ghrelin and rs2241766 for adiponectin gene did not show any difference between carriers and non-carriers of the mutant allele.

conclusionCarrying a G to T substitution in rs696217 (preproghrelin gene) seems to mark a successful weight loss outcome; we also report for the first time that the rs1126535 C allele (CD40L gene) may predict a worse response to bariatric surgery.

Indexed as

Gastric BypassAdiponectinAdultBiomarkersCD40 LigandFemaleGhrelinHeterozygoteHumansMaleMiddle AgedObesity, MorbidPolymorphism, Single NucleotideReceptors, GhrelinWeight LossYoung AdultAdiponectinADIPOQ protein, humanBiomarkersCD40 LigandGhrelinReceptors, GhrelinGhrelin/preproghrelinPolymorphismsPredictorssCD40LWeight loss outcome

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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.