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Differential expression of miRNA-146a and miRNA-155 in gastritis induced by Helicobacter pylori infection in paediatric patients, adults, and an animal model

Overview of attention for article published in BMC Infectious Diseases, September 2018
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Title
Differential expression of miRNA-146a and miRNA-155 in gastritis induced by Helicobacter pylori infection in paediatric patients, adults, and an animal model
Published in
BMC Infectious Diseases, September 2018
DOI 10.1186/s12879-018-3368-2
Pubmed ID
Authors

Ana Caren Cortés-Márquez, Sandra Mendoza-Elizalde, Francisco Arenas-Huertero, Jimena Trillo-Tinoco, Pedro Valencia-Mayoral, Alejandra Consuelo-Sánchez, Jonathan Zarate-Franco, Ada Ruth Dionicio-Avendaño, José de Jesús Herrera-Esquivel, Elio Germán Recinos-Carrera, Christian Colín-Valverde, Sandra Rivera-Gutiérrez, Alfonso Reyes-López, Juan Carlos Vigueras-Galindo, Norma Velázquez-Guadarrama

Abstract

Helicobacter pylori is a major aetiologic agent associated with gastritis. H. pylori infections increase the expression of the Toll-like receptor (TLR), which in turn modulates the expression of microRNA (miRNA)-146a and miRNA-155. The objective of this study was to compare the expression of miRNA-146a and miRNA-155 in gastric lesions of paediatric and adult patients with different pathologies and in Mongolian gerbils (Meriones unguiculatus) infected with H. pylori 26,695. Quantification of miRNA expression was performed by quantitative real-time polymerase chain reaction (qRT-PCR) of paraffin-embedded gastric lesions of children with or without an infection (n = 25), adults with follicular gastritis and metaplasia (n = 32) and eight-week-old M. unguiculatus males (Hsd:MON) infected with H. pylori 26,695 for 0, 3, 6, 12 and 18 months (n = 25). The genes RNU48 and RNU6 were used as endogenous controls for data normalization. Statistical analyses were performed using Kruskal-Wallis, Mann-Whitney, ANOVA and Student's t-test. The expression of miRNA-146a and miRNA-155 in infected children increased by 247.6- and 79.4-fold (on average), respectively, compared to that observed in the control group. However, these results were not significant (p = 0.12 and p = 0.07 respectively). In some children a gradual increase in expression was observed, while in others, expression was very high. Additionally, the expression levels of miRNA-146a and miRNA-155 increased by an average of 21.7- and 62-fold, respectively, in adult patients with follicular gastritis when compared to those of the controls. In M. unguiculatus infected with H. pylori 26,695, the expression of both miRNAs increased as the infection progressed. This is the first report to show differences in the expression of miRNA-146a and miRNA-155 in paediatric and adult patients with gastritis who were infected with H. pylori. In addition, in M. unguiculatus infected with H. pylori, miRNA expression was associated with the progression of infection and the ability of the bacteria to adapt to the host.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 36 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 36 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 6 17%
Student > Bachelor 6 17%
Student > Master 4 11%
Student > Doctoral Student 2 6%
Student > Postgraduate 2 6%
Other 5 14%
Unknown 11 31%
Readers by discipline Count As %
Medicine and Dentistry 12 33%
Biochemistry, Genetics and Molecular Biology 5 14%
Immunology and Microbiology 2 6%
Neuroscience 2 6%
Business, Management and Accounting 1 3%
Other 4 11%
Unknown 10 28%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 17 September 2018.
All research outputs
#20,533,292
of 23,103,436 outputs
Outputs from BMC Infectious Diseases
#6,543
of 7,752 outputs
Outputs of similar age
#294,089
of 337,900 outputs
Outputs of similar age from BMC Infectious Diseases
#111
of 152 outputs
Altmetric has tracked 23,103,436 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
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