ArticleThe Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology2018
Association of a single nucleotide polymorphism in the TLR2 gene (rs3804099), but not in the TLR4 gene (rs4986790), with Helicobacter pylori infection and peptic ulcer.
Article in The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.
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Who cites it
11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.
- Pooled it
- TLR2 variants andUpsala journal of medical sciences · 2025Pooled it
- Phytochemical-driven angiogenesis and mucosal regeneration in gastric ulcer healing: molecular mechanisms, preclinical evidence, and translational perspectives.Molecular biology reports · 2026Review
- How Toll-like receptors influence Parkinson's disease in the microbiome-gut-brain axis.Frontiers in immunology · 2023Review
- Association of Single Nucleotide Polymorphisms from Angiogenesis-Related Genes,Current issues in molecular biology · 2022Article
- TLR2 and TLR4 in Parkinson's disease pathogenesis: the environment takes a toll on the gut.Translational neurodegeneration · 2021Review
- IncreasedDiagnostics (Basel, Switzerland) · 2021Article
- Association Between aFrontiers in genetics · 2021Article
- The Role of Toll-Like Receptor-2 inFrontiers in immunology · 2021Article
- Evaluation of Polymorphisms in Toll-Like Receptor Genes as Biomarkers of the Response to Treatment of Erythema Nodosum Leprosum.Frontiers in medicine · 2021Article
- Single Nucleotide Polymorphisms Associated With Gut Homeostasis Influence Risk and Age-at-Onset of Parkinson's Disease.Frontiers in aging neuroscience · 2020Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsToll-like receptors (TLRs), particularly TLR2 and TLR4, take part in elicitation of immune responses against Helicobacter pylori (H. pylori). This study aimed to investigate the relationship between single nucleotide polymorphisms (SNP) rs3804099 in the TLR2 gene and rs4986790 in the TLR4 gene with H. pylori infection and peptic ulcer (PU). MATERIALS AND
methodsBlood specimens were obtained from 350 individuals, including 100 H. pylori-infected patients with PU, 125 H. pylori-infected asymptomatic subjects (AS), and 125 non-infected healthy subjects (NHS). The DNA was extracted, and the SNPs were determined using ARMS-PCR method.
resultsThe frequency of CT genotype at TLR2 SNP rs3804099 in both the PU and AS groups was significantly higher than in the NHS group (p<0.05). In total H. pylori-infected individuals (PU+AS), the frequency of the CT genotype at rs3804099 was also significantly higher than in the NHS group (p<0.005). The frequency of the CC genotype at rs3804099 in PU+AS was markedly lower than in the NHS group (p=0.066). PU patients carried CT genotype more frequently than total healthy individuals (AS+NHS) (p<0.03). The distribution of the TT genotype was lower, whereas the frequency of the CT genotype was higher in AS individuals infected with CagA+ strains than those infected with CagA- strains (p<0.03). No significant differences were found among the PU, AS, and NHS groups regarding the genetic differences at rs4986790 in the TLR4 gene.
conclusionThese results provide evidence regarding the association of the rs3804099 in the TLR2 gene with H. pylori infection and PU. The rs3804099 may affect vulnerability to H. pylori infection, particularly to CagA+ strains of bacteria.
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