Evidence map›Paper›PMID 28830502›Full record

ArticleEuropean journal of medical research2017

Relationship between GNAS1 T393C polymorphism and aseptic loosening after total hip arthroplasty.

Patrick Stelmach, Max D Kauther, Lena Fuest, Gina Kurscheid, Thorsten Gehrke, Stefanie Klenke, Marcus Jäger, Christian Wedemeyer, Hagen S Bachmann

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Article in European journal of medical research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
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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

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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

3 citing papers in PubMed, 1 synthesis or guideline 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

9 authors.

Patrick StelmachInstitute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.
Max D KautherDepartment of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany.
Lena FuestInstitute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.
Gina KurscheidInstitute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.
Thorsten GehrkeDepartment of Joint Surgery, Helios ENDO-Klinik, Hamburg, Germany.
Stefanie KlenkeInstitute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.
Marcus JägerDepartment of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany.
Christian WedemeyerDepartment of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany.
Hagen S BachmannInstitute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany. hagen.bachmann@uk-essen.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAseptic loosening is a main cause for revision surgery after total hip arthroplasty (THA) and there is no reliable marker for the early detection of patients at high risk. This study has been performed to validate association of the T393C polymorphism (rs7121) in the GNAS1 gene, encoding for the alpha-subunit of heterotrimeric G-protein Gs, with risk for and time to aseptic loosening after THA, which has been demonstrated in our previous study.

methods231 patients with primary THA and 234 patients suffering from aseptic loosening were genotyped for dependency on GNAS1 genotypes and analyzed.

resultsGenotyping revealed almost similar minor allele frequencies of 0.49 and 0.46, respectively. Consistently, genotype distributions of both groups were not significantly different (p = 0.572). Neither gender nor GNAS1 genotype showed a statistically significant association with time to loosening (p = 0.501 and p = 0.840). Stratification by gender, as performed in our previous study, was not able to show a significant genotype-dependent difference in time (female p = 0.313; male p = 0.584) as well as median time to aseptic loosening (female p = 0.353; male p = 0.868).

conclusionThis study was not able to confirm the results of our preliminary study. An association of the GNAS1 T393C polymorphisms with risk for and time to aseptic loosening after THA is unlikely.

Indexed as

Polymorphism, Single NucleotideProsthesis FailureAgedArthroplasty, Replacement, HipCase-Control StudiesChromograninsFemaleGTP-Binding Protein alpha Subunits, GsHumansMaleMiddle AgedMutation, MissensePostoperative ComplicationsChromograninsGNAS protein, humanGTP-Binding Protein alpha Subunits, GsAseptic looseningGNAS1 T393CPolymorphism

Identifiers

PMID28830502
PMCPMC5568317

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