Evidence map›Paper›PMID 20376628›Full record

ArticleEuropean journal of clinical pharmacology2010

Effects of CYP2C19, MDR1, and interleukin 1-B gene variants on the eradication rate of Helicobacter pylori infection by triple therapy with pantoprazole, amoxicillin, and metronidazole.

Barbara Gawrońska-Szklarz, Andrzej Siuda, Mateusz Kurzawski, Dariusz Bielicki, Wojciech Marlicz, Marek Droździk

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In one paragraph

Article in European journal of clinical pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
4.2field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 40 citations in OpenAlex.

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  11. Proton pump inhibitors: from CYP2C19 pharmacogenetics to precision medicine.Expert opinion on drug metabolism & toxicology · 2018
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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

6 authors at 2 institutions in 2 countries.

Barbara Gawrońska-SzklarzDepartment of Pharmacology, Pomeranian Medical University, Powstancow Wlkp. 72, 70-111, Szczecin, Poland.
Andrzej Siuda
Mateusz Kurzawski
Dariusz Bielicki
Wojciech Marlicz
Marek Droździk
Pomeranian Medical University · PLWestern Regional Hospital · NP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEradication of H. pylori is an important treatment strategy in peptic ulcer patients. Current regimens of eradication consist of proton pump inhibitor (PPI) and two antibiotics. Effects of PPI may depend on their metabolism, and other factors important for the pathophysiology of peptic ulcer disease. Aim of the present study was to evaluate an association of CYP2C19, MDR1, and IL-1B polymorphisms with the eradication rate of H. pylori in Polish Caucasian patients treated with a triple therapy of pantoprazole, amoxicillin, and metronidazole.

methodsA total of 139 peptic ulcer patients, positive for H. pylori infection, were treated with triple therapy (pantoprazole + amoxicillin + metronidazole). Subsequently, the patients were divided into two groups (group 1, success, and group 2, failure of eradication after therapy) and genotyped by the PCR-RFLP method for the presence of CYP2C19 variant alleles (*2, *3, and *17), and MDR1 3435C>T and IL-1B +3954C>T polymorphisms. Pantoprazole serum concentrations were measured using the HPLC method.

resultsNo significant differences in frequency or distribution of CYP2C19 genotypes were found between the two groups of patients (i.e., with successful H. pylori eradication and treatment failure). However, any carrier of defective CYP2C19*2/*2 genotype was found among patients with treatment failure. Similarly, MDR1 and IL-1B genotypes were found to be significantly associated with the success or failure of H. pylori eradication. Univariate and multivariate analysis of the genotypes did not reveal any significant association between the genotypes and H. pylori eradication. Pantoprazole concentrations differed significantly, and were the highest in patients with defective allele CYP2C19*2 carriers and lowest in hyperactive genotype homozygotes CYP2C19*17/*17.

conclusionThe results suggest that the CYP2C19 genotype contrary to MDR1 and IL-1B genotypes may have an impact on the efficacy of H. pylori eradication in peptic ulcer patients treated with pantoprazole in Polish Caucasian peptic ulcer patients administered pantoprazole, amoxicillin, and metronidazole.

Indexed as

2-PyridinylmethylsulfinylbenzimidazolesAdultAgedAged, 80 and overAmoxicillinAnti-Bacterial AgentsAryl Hydrocarbon HydroxylasesATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1Cytochrome P-450 CYP2C19Drug Therapy, CombinationFemaleGenetic VariationGenotypeHelicobacter InfectionsHelicobacter pylori2-PyridinylmethylsulfinylbenzimidazolesABCB1 protein, humanAmoxicillinAnti-Bacterial AgentsAryl Hydrocarbon HydroxylasesATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1CYP2C19 protein, humanCytochrome P-450 CYP2C19IL1B protein, humanInterleukin-1betaMetronidazolePantoprazoleProton Pump Inhibitors

Identifiers

PMID20376628
OpenAlexW2119369632

What OpenQuestion holds

Textmetadata
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Registered trials

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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.