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Karcioglu Batur L, Hekim N. Correlation between interleukin gene polymorphisms and current prevalence and mortality rates due to novel coronavirus disease 2019 (COVID-2019) in 23 countries. J Med Virol 2021; 93:5853-5863. [PMID: 34081354 PMCID: PMC8242628 DOI: 10.1002/jmv.27127] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/01/2021] [Indexed: 12/26/2022]
Abstract
Background The novel coronavirus disease 2019 (COVID‐19) infection may rely on a potential genetic background for the variations in the inflammatory response. We aimed to investigate the possible correlation between polymorphisms in the IL‐6 gene at rs1800796/rs1800795, in IL‐6R at rs2228145, in IL‐10 at rs1800896 and rs1800871, in IL‐17 at rs2275913 and rs763780 loci, and COVID‐19 prevalence and mortality rates among populations of 23 countries. Methods We searched the literature for polymorphisms in China, Japan, India, Spain, Mexico, Sweden, Turkey, Brazil, Russia, Poland, Italy, South Africa, Netherlands, Greece, Germany, UK, Iran, Finland, Czechia, Tunisia, Norway, Egypt, Croatia. We recorded the prevalence and mortality rates (per million) caused by the Coronavirus infection recorded on 7th September 2020 and 6th December 2020. Results There was a significant positive correlation between the frequency of AG genotype of rs1800896 and prevalence recorded on 6th December 2020 (r: 0.53, r2: 0.28, p < .05). There was a significant negative correlation between the mortality rates recorded on 7th September, and the AG genotype of rs2275913 (r: −0.51, r2: 0.26, p < .05). There was a significant positive correlation between the prevalence recorded on 6th December, and TT genotype at rs763780 (r: 0.65, r2:0.42, p < .05) while a negative correlation between prevalence and TC genotype at rs763780 (r: −0.66, r2: 0.43, p < .05). Also, a significant negative correlation was found between mortality rates recorded on 6th December 2020 and CC genotype at rs763780 (r: −0.56, r2: 0.31, p < .05). Conclusion The variations in prevalence of COVID‐19 and its mortality rates among countries may be explained by the polymorphisms at rs1800896 in IL‐10, rs2275913 in IL‐17A, and rs763780 loci in the IL‐17F gene. The variations in prevalence of COVID‐19 and its mortality rates among 23 countries may be explained by the polymorphisms at rs1800896 in IL‐10, rs2275913 in IL‐17A, and rs763780 loci in the IL‐17F gene. AG genotype frequency of rs1800896 was positively correlated with prevalence recorded on 6th December 2020. The mortality rates recorded on 7th September was negatively correlated with AG genotype frequency of rs2275913. The prevalence recorded on 6th December was positively correlated with frequency of TT and negatively with TC genotype at rs763780. The mortality rates recorded on 6th December 2020 was negatively correlated with CC genotype frequency at rs763780.
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Affiliation(s)
- Lutfiye Karcioglu Batur
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Biruni University, Istanbul, Turkey
| | - Nezih Hekim
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Biruni University, Istanbul, Turkey
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Yan LR, Lv Z, Jing JJ, Yuan Y, Xu Q. Single nucleotide polymorphisms of whole genes and atrophic gastritis susceptibility:a systematic review and meta-analysis. Gene 2021; 782:145543. [PMID: 33667608 DOI: 10.1016/j.gene.2021.145543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/29/2021] [Accepted: 02/18/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Atrophic gastritis (AG) is one of the important precancerous lesions of gastric cancer. Single nucleotide polymorphisms (SNPs) are closely related to AG susceptibility. However, the research conclusions on the predictive potential of SNPs are inconsistent. The study aims to retrospect the association between SNPs of whole genes and AG risk by meta-analysis. MATERIALS AND METHODS Up to April 29, 2020, a systematic literature search for the relationship of SNPs with AG susceptibility was performed utilizing PubMed, Web of Science and Chinese National Knowledge Infrastructure. The overall and stratified meta-analyses on extracted data were conducted by Stata11.2. RESULTS 33 case-control studies were enrolled containing 9951 AG patients and 17,252 healthy controls, and 17 SNPs in 12 different genes were systematically reviewed. The results indicated that 12 genes could be categorized based on their functions, including immune response, cell proliferation and apoptosis, and DNA damage repair. For the SNPs in immune response-related genes, the C allele of TLR1 rs4833095 T/C increased AG risk to 1.21-fold and the recessive model of TLR4 rs11536878 in the TLR gene family decreased AG susceptibility to 0.48-fold. The variant alleles of IL-10 rs1800871 (OR = 1.21) and IL-8 rs4073 (OR = 1.22) in the IL gene family were positively associated with AG risk. PSCA rs2294008 enhanced AG risk in all genetic models. SNPs associated with AG susceptibility were mainly focused on immune response-related genes. CONCLUSION These SNPs related to immune response could influence on AG risk and have potential to be AG predictive biomarkers. It is worth noting that the number of studies for each SNPs were insufficient due to the limited published researches and updated meta-analysis needs to be performed based on extensive relevant studies for more reliable results.
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Affiliation(s)
- Li-Rong Yan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Zhi Lv
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jing-Jing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
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Sun X, Cai H, Li Z, Li S, Yin W, Dong G, Kuai J, He Y, Jia J. Association between IL-1β polymorphisms and gastritis risk: A meta-analysis. Medicine (Baltimore) 2017; 96:e6001. [PMID: 28151895 PMCID: PMC5293458 DOI: 10.1097/md.0000000000006001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection of the human stomach regularly leads to chronic gastric inflammation. The cytokine gene interleukin (IL)-1β has been implicated in influencing the pathology of inflammation induced by H. pylori infection. Currently, several studies have been carried out to investigate the association of IL-1β-511 (rs16944) and IL-1β-31 (rs1143627) polymorphisms with gastritis risk; however, the results are inconsistent and inconclusive. To assess the effect of IL-1β polymorphisms on gastritis susceptibility, we conducted a meta-analysis. METHODS Up to March 15, 2016, 2205 cases and 2289 controls were collected from 12 published case-control studies. Summarized odds ratios and corresponding 95% confidence intervals (CIs) for IL-1β-511 and IL-1β-31 polymorphisms and gastritis risk were estimated using fixed- or random-effects models when appropriate. Heterogeneity was assessed by chi-squared-based Q-statistic test, and the sources of heterogeneity were explored by subgroup analyses and logistic meta-regression analyses. Publication bias was evaluated by Begg funnel plot and Egger test. Sensitivity analyses were also performed. RESULTS The results provided evidences that the single nucleotide polymorphisms (SNPs) in IL-1β-31 might be associated with the gastritis risk, especially in the Caucasian population, while SNPs in the IL-1β-511 might not be. CONCLUSION Our studies may be helpful in supplementing the disease monitoring of gastritis in the future, and additional studies to determine the exact molecular mechanisms might inspire interventions to protect the susceptible subgroups.
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Affiliation(s)
- Xiaoming Sun
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Hongxing Cai
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Zhouru Li
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Shanshan Li
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Wenjiang Yin
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Guokai Dong
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | - Jinxia Kuai
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu
| | | | - Jing Jia
- Center for Molecular Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, P. R. China
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4
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New insights into immune mechanisms underlying autoimmune diseases of the gastrointestinal tract. Autoimmun Rev 2015; 14:1161-9. [DOI: 10.1016/j.autrev.2015.08.004] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/05/2015] [Indexed: 02/07/2023]
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An updated meta-analysis of transforming growth factor-β1 gene: three polymorphisms with gastric cancer. Tumour Biol 2013; 35:2837-44. [PMID: 24254308 DOI: 10.1007/s13277-013-1408-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/07/2013] [Indexed: 02/06/2023] Open
Abstract
To derive a more precise estimation of the relationship between TGF-β1 polymorphisms and gastric cancer (GC) risk, we conducted a meta-analysis of all available case-control studies relating the C-509 T, T869C, and G 915C polymorphisms of the TGF-β1 gene to the risk of developing GC. The effect summary odds ratio (OR) and 95% confidence intervals (CIs) were obtained. Funnel plots and Egger's test were used to estimate publication bias. Finally, 11 studies were included in the final meta-analysis. With respect to C-509 T polymorphism, it was found that significantly increased GC risk was associated with the TT genotype in the recessive genetic model in overall analysis (TT vs. CC + CT: OR = 1.23, 95% CI 1.09-1.38, P(heterogeneity) = 0.13) and in Asian population (TT vs. CC + CT: OR = 1.24, 95% CI 1.10-1.39, P(heterogeneity) = 0.18). With respect to T869C and G915C polymorphisms, no significant association with GC risk was demonstrated in overall analysis and subgroup analyses according to ethnicity for all genetic models. This meta-analysis suggested that the T allele of TGF-β1 509C/T polymorphism is probably the susceptibility factor for GC.
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Franco L, Williams FM, Trofimov S, Surdulescu G, Spector TD, Livshits G. Contribution of putative genetic factors and candidate gene variants to inter-individual variation of circulating fractalkine (CX3CL1) levels in a large UK twins’ sample. Hum Immunol 2013; 74:358-63. [DOI: 10.1016/j.humimm.2012.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/28/2012] [Accepted: 12/03/2012] [Indexed: 01/26/2023]
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Biagi F, Badulli C, Feurle GE, Müller C, Moos V, Schneider T, Marth T, Mytilineos J, Garlaschelli F, Marchese A, Trotta L, Bianchi PI, Stefano M, Cremaschi AL, Silvestri A, Salvaneschi L, Martinetti M, Corazza GR. Cytokine genetic profile in Whipple’s disease. Eur J Clin Microbiol Infect Dis 2012; 31:3145-50. [DOI: 10.1007/s10096-012-1677-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 06/11/2012] [Indexed: 02/07/2023]
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Lefebvre JF, Vello E, Ge B, Montgomery SB, Dermitzakis ET, Pastinen T, Labuda D. Genotype-based test in mapping cis-regulatory variants from allele-specific expression data. PLoS One 2012; 7:e38667. [PMID: 22685595 PMCID: PMC3369843 DOI: 10.1371/journal.pone.0038667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 05/13/2012] [Indexed: 12/20/2022] Open
Abstract
Identifying and understanding the impact of gene regulatory variation is of considerable importance in evolutionary and medical genetics; such variants are thought to be responsible for human-specific adaptation and to have an important role in genetic disease. Regulatory variation in cis is readily detected in individuals showing uneven expression of a transcript from its two allelic copies, an observation referred to as allelic imbalance (AI). Identifying individuals exhibiting AI allows mapping of regulatory DNA regions and the potential to identify the underlying causal genetic variant(s). However, existing mapping methods require knowledge of the haplotypes, which make them sensitive to phasing errors. In this study, we introduce a genotype-based mapping test that does not require haplotype-phase inference to locate regulatory regions. The test relies on partitioning genotypes of individuals exhibiting AI and those not expressing AI in a 2×3 contingency table. The performance of this test to detect linkage disequilibrium (LD) between a potential regulatory site and a SNP located in this region was examined by analyzing the simulated and the empirical AI datasets. In simulation experiments, the genotype-based test outperforms the haplotype-based tests with the increasing distance separating the regulatory region from its regulated transcript. The genotype-based test performed equally well with the experimental AI datasets, either from genome-wide cDNA hybridization arrays or from RNA sequencing. By avoiding the need of haplotype inference, the genotype-based test will suit AI analyses in population samples of unknown haplotype structure and will additionally facilitate the identification of cis-regulatory variants that are located far away from the regulated transcript.
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Affiliation(s)
- Jean Francois Lefebvre
- Centre de Recherche du CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Emilio Vello
- Centre de Recherche du CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Bing Ge
- McGill University and Genome Québec Innovation Centre, Montréal, Québec, Canada
| | - Stephen B. Montgomery
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
- Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | - Emmanouil T. Dermitzakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
- Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | - Tomi Pastinen
- McGill University and Genome Québec Innovation Centre, Montréal, Québec, Canada
- Department of Human Genetics, McGill University Health Centre, McGill University, Montréal, Québec, Canada
- Department of Medical Genetics, McGill University Health Centre, McGill University, Montréal, Québec, Canada
| | - Damian Labuda
- Centre de Recherche du CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
- Département de Pédiatrie, Université de Montréal, Montréal, Québec, Canada
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Frank B, Weck MN, Müller H, Klopp N, Illig T, Raum E, Brenner H. Polymorphisms in MUC1, MUC2, MUC5B and MUC6 genes are not associated with the risk of chronic atrophic gastritis. Eur J Cancer 2011; 48:114-20. [PMID: 21596555 DOI: 10.1016/j.ejca.2011.04.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/06/2011] [Accepted: 04/11/2011] [Indexed: 12/23/2022]
Abstract
Mucins represent major components of the mucous layer in the stomach, protecting the underlying epithelium from acid, mechanical trauma, proteases and pathogenic bacteria. Previous studies have shown an association of neoplastic transformation in the stomach with aberrant mucin levels, suggesting a potential role of genetic variation in mucin genes in the development of gastric cancer (GC). We assessed the association of genetic variation in candidate single nucleotide polymorphisms (SNPs) in mucin genes with the risk of chronic atrophic gastritis (CAG), a well-established precursor of GC in the German population-based ESTHER study. We genotyped MUC1 T31T, MUC2 L58P, MUC2 V116M, MUC5B E34G, MUC5B R51W, MUC5B rs2014486 (intronic) and MUC6 V619M for 533 serologically defined CAG cases and 1054 age- and sex-matched controls. None of the analysed SNPs was associated with CAG. However, large studies are needed to disclose or exclude potential weak associations of these SNPs with CAG risk.
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Affiliation(s)
- Bernd Frank
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany.
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10
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Lochhead P, Frank B, Hold GL, Rabkin CS, Ng MTH, Vaughan TL, Risch HA, Gammon MD, Lissowska J, Weck MN, Raum E, Müller H, Illig T, Klopp N, Dawson A, McColl KE, Brenner H, Chow WH, El-Omar EM. Genetic variation in the prostate stem cell antigen gene and upper gastrointestinal cancer in white individuals. Gastroenterology 2011; 140:435-41. [PMID: 21070776 PMCID: PMC3031760 DOI: 10.1053/j.gastro.2010.11.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 10/22/2010] [Accepted: 11/03/2010] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS An association between gastric cancer and the rs2294008 (C>T) polymorphism in the prostate stem cell antigen (PSCA) gene has been reported for several Asian populations. We set out to determine whether such an association exists in white individuals. METHODS We genotyped 166 relatives of gastric cancer patients, including 43 Helicobacter pylori-infected subjects with hypochlorhydria and gastric atrophy, 65 infected subjects without these abnormalities, 58 H pylori-negative relatives, and 100 population controls. Additionally, a population-based study of chronic atrophic gastritis provided 533 cases and 1054 controls. We then genotyped 2 population-based, case-control studies of upper gastrointestinal cancer: the first included 312 gastric cancer cases and 383 controls; the second included 309 gastric cancer cases, 159 esophageal cancer cases, and 211 controls. Odds ratios were computed from logistic models and adjusted for confounding variables. RESULTS Carriage of the risk allele (T) of rs2294008 in PSCA was associated with chronic atrophic gastritis (adjusted odds ratio [OR], 1.5; 95% confidence interval [CI]: 1.1-1.9) and noncardia gastric cancer (OR, 1.9; 95% CI: 1.3-2.8). The association was strongest for the diffuse histologic type (OR, 3.2; 95% CI: 1.2-10.7). An inverse association was observed between carriage of the risk allele and gastric cardia cancer (OR, 0.5; 95% CI: 0.3-0.9), esophageal adenocarcinoma (OR, 0.5; 95% CI: 0.3-0.9), and esophageal squamous cell carcinoma (OR, 0.4; 95% CI: 0.2-0.9). CONCLUSIONS The rs2294008 polymorphism in PSCA increases the risk of noncardia gastric cancer and its precursors in white individuals but protects against proximal cancers.
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Affiliation(s)
- Paul Lochhead
- Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Scotland
| | - Bernd Frank
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Georgina L. Hold
- Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Scotland
| | - Charles S. Rabkin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Michael T. H. Ng
- Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Scotland
| | - Thomas L. Vaughan
- Program in Epidemiology, Fred Hutchinson Cancer Research Center, Seattle, WA, and Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington
| | - Harvey A. Risch
- Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut
| | - Marilie D. Gammon
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina
| | - Jolanta Lissowska
- Division of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Melanie N. Weck
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Elke Raum
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Heiko Müller
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Thomas Illig
- Institute of Epidemiology, Research Centre for Environment and Health, Neuherberg, Germany
| | - Norman Klopp
- Institute of Epidemiology, Research Centre for Environment and Health, Neuherberg, Germany
| | - Alan Dawson
- Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Scotland
| | - Kenneth E. McColl
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Wong-Ho Chow
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Emad M. El-Omar
- Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Scotland
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Gao L, Weck MN, Nieters A, Brenner H. Grb2-associated binder 1 (Gab1) genetic polymorphism, Helicobacter pylori infection, and chronic atrophic gastritis among older adults from Germany. Mol Carcinog 2010; 49:869-73. [PMID: 20602450 DOI: 10.1002/mc.20662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Grb2-associated binder 1 (Gab1) plays an important role in the regulation of cell growth and transformation. A single nucleotide polymorphism (SNP) (rs3805246) in the Gab1 gene has been suggested to be related to the risk of Helicobacter pylori infection and chronic atrophic gastritis (CAG) in a study from Japan. We aimed to assess the associations in a population-based study from Germany. In the baseline examination of ESTHER, a population-based study conducted in Saarland, serum pepsinogen I and II and H. pylori serostatus were measured by ELISA. The Gab1 SNP (rs3805246) was genotyped in 351 serologically defined CAG cases and 351 age- and sex-matched non-CAG controls. A nonsignificant association was observed between the Gab1 SNP and CAG, with an adjusted odds ratio of 1.15 (0.85-1.55) for AA/AG carriers compared to GG carriers. The magnitude of the association did not change when the analysis was restricted to H. pylori seropositive subjects. Furthermore, no significant relation was found between the SNP and H. pylori seropositivity among non-CAG controls. We could not confirm a major association between Gab1 SNP (rs3805246) and the predisposition to H. pylori infection and CAG in this study population from Germany. Further studies with larger sample size are needed to clarify a potential modest effect of Gab1 genetic polymorphisms.
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Affiliation(s)
- Lei Gao
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
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12
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Interleukin-1B and interleukin-1 receptor antagonist gene polymorphisms are not associated with premalignant gastric conditions: a combined haplotype analysis. Eur J Gastroenterol Hepatol 2010; 22:1189-95. [PMID: 20631624 DOI: 10.1097/meg.0b013e32833cf3d5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Contradictory results have been reported about the role of interleukin-1B (IL1B) and IL1 receptor antagonist (IL1RN) alleles in gastric carcinogenesis. Here, IL1B and IL1RN polymorphisms were analyzed as genotypes and haplotypes in relation to the presence of atrophic gastritis (AG) and intestinal metaplasia in the stomach. METHODS Two hundred and seventy-eight patients (212 Caucasians and 66 Asians) aged 50 years and above, referred for upper endoscopy because of dyspeptic symptoms, were included in the study. Gastric biopsies were histologically assessed according to the updated Sydney classification. Genomic DNA was typed for polymorphisms at position -3737, -1464, -511, -31 for the IL1B gene and the allele 2 of IL1RN using restriction fragment length polymorphism of amplified PCR fragments and intron-spanning PCR analysis, respectively. RESULTS IL1B-1464-C/C genotype was associated with higher presence of AG in antrum of the stomach in Caucasians [odds ratio: 4.8 (95% confidence interval=1.7-14.3); P=0.028]. IL1B-1464-G/C genotype was associated with lower incidence of AG in corpus of the stomach in Asians [odds ratio: 0.7 (95% confidence interval=0.5-0.8); P=0.02]. IL1RN*2 allele was not linked with AG or intestinal metaplasia in all parts of the stomach both among Asians and Caucasians. Overall, data show that none of the major four IL1B polymorphisms (IL1B-3737C>T, -1464G>C, -511C>T, -31T>C) and the IL1RN*2 is individually, or in its haplotype configuration, linked to the presence of premalignant lesions in Caucasians. CONCLUSION The determination of these IL1-related loci does not have any predictive value for stratification of subgroups with respect to gastric cancer risk.
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Abstract
Several interesting studies have been published on nonmalignant Helicobacter pylori-related conditions over the past year, which are reviewed in this article. A revival of interest in the histologic classification of gastritis has led to grading of gastritis into stages correlating with risk of neoplastic progression, new data to improve this concept have been published. Unselected prescription of proton-pump inhibitors in patients with dyspepsia has been questioned by the finding that withdrawal of proton-pump inhibitors induces acid-related symptoms in healthy volunteers, probably by the mechanism of rebound gastric acid hypersecretion. Additional data on the rationale of tapering proton-pump inhibitor therapy are therefore awaited. Moreover, new data on peptic ulcer disease and its complications provide clear recommendations for daily clinical practice. Testing and eradication of H. pylori in patients with peptic ulcer bleeding is essential. However, in H. pylori-negative peptic ulcer disease, high overall patient mortality should be acknowledged, and this should guide considering continuation of nonsteroidal anti-inflammatory drugs. The role of H. pylori in the pathogenesis of gastroesophageal reflux disease is still unclear. An association has been described by several studies; however, it cannot be translated to individual risks for development of gastroesophageal reflux disease after H. pylori eradication. Possibly, additional data on subgroups, such as gastric ulcer, duodenal ulcer patients, and associated gastric mucosal changes, will solve this issue.
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Affiliation(s)
- Annemarie C de Vries
- Department of Gastroenterology and Hepatology Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
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Cheng HH, Chang CS, Wang HJ, Wang WC. Interleukin-1beta and -10 polymorphisms influence erosive reflux esophagitis and gastritis in Taiwanese patients. J Gastroenterol Hepatol 2010; 25:1443-51. [PMID: 20659236 DOI: 10.1111/j.1440-1746.2010.06310.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Helicobacter pylori (H. pylori) infection induces cytokine production and is associated with gastrointestinal diseases. This study examined the relationship of gene polymorphisms, including interleukin (IL)-1beta, -10, -8, and tumor necrosis factor-alpha (TNF-alpha), H. pylori infection, and susceptibility to gastrointestinal disorders in Taiwanese patients. METHODS IL-1beta-511/-31/+3953, -10-1082/-819/-592, -8-251, and TNF-alpha-308 polymorphisms were assessed in 628 gastrointestinal disease patients, and 176 healthy controls were analyzed using the polymerase chain reaction-restriction fragment length polymorphism method. RESULTS IL-1beta-511 T/T and -31 C/C genotypes, and IL-1beta-511 T and -31 C alleles were associated with an increased risk of reflux esophagitis (P = 0.034, odds ratio [OR] = 1.384, 95% confidence interval [CI]: 1.023-1.871; P = 0.031, OR = 1.388, 95% CI: 1.028-1.873; P = 0.044, OR = 1.342, 95% CI: 1.008-1.786; and P = 0.040, OR = 1.349, 95% CI: 1.014-1.796, respectively). No relationship was found between H. pylori infection and the risk of reflux esophagitis. IL-10-819 C/T and -10-592 A/C genotypes and IL-10-1082/-819/-592 ATA/ACC and ATA/GCC haplotypes were associated with an increased risk of gastritis (P = 0.021, OR = 1.721, 95% CI: 1.084-2.733; P = 0.016, OR = 1.766, 95% CI: 1.112-2.805; P = 0.039, OR = 1.662, 95% CI: 1.024-2.697; and P = 0.035, OR = 1.600, 95% CI: 1.024-2.499, respectively). CONCLUSION Among Taiwanese patients, IL-1beta and -10 polymorphisms were associated with an increased risk of erosive reflux esophagitis and gastritis, respectively.
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Affiliation(s)
- Hsin-Hung Cheng
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing Hua University, Hsinchu, Taiwan
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Li ZW, Wu Y, Sun Y, Liu LY, Tian MM, Feng GS, You WC, Li JY. Inflammatory cytokine gene polymorphisms increase the risk of atrophic gastritis and intestinal metaplasia. World J Gastroenterol 2010; 16:1788-94. [PMID: 20380014 PMCID: PMC2852830 DOI: 10.3748/wjg.v16.i14.1788] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of interleukin-8 (IL-8), macrophage migration inhibitory factor (MIF) gene polymorphisms, Helicobacter pylori (H. pylori) infection, on the risk of developing severe chronic atrophic gastritis (SCAG) and intestinal metaplasia (IM).
METHODS: A total of 372 cases were selected from a cohort study in Linqu County, a high risk area for gastric cancer (GC) in northern China. To obtain a sufficient group size, patients with normal or superficial gastritis were included. Based on an average follow-up period of 56 mo, the 372 cases were divided into no progression group (no histological progression from normal or superficial gastritis, n = 137), group I (progressed from normal or superficial gastritis to SCAG, n = 134) and group II (progressed from normal or superficial gastritis to IM, n = 101). IL-8, MIF gene polymorphisms were detected by polymerase chain reaction-based denaturing high-performance liquid chromatography analysis and DNA sequencing.
RESULTS: An increased risk of SCAG was found in subjects with IL-8-251 AA genotype [odds ratio (OR) = 2.62, 95% CI: 1.23-5.72] or IL-8-251 A allele carriers (AA + AT) (OR = 1.81, 95% CI: 1.06-3.09). An elevated risk of IM was found in subjects with IL-8-251 AT genotype (OR = 2.27, 95% CI: 1.25-4.14) or IL-8-251 A allele carriers (OR = 2.07, 95% CI: 1.16-3.69). An increased risk of SCAG was found in subjects with MIF-173 GC genotype (OR = 2.36, 95% CI: 1.38-4.02) or MIF-173 C allele carriers (GC + CC) (OR = 2.07, 95% CI: 1.21-3.55). An elevated risk of IM was found in subjects with MIF-173 CC genotype (OR = 2.27, 95% CI: 1.16-4.46) or MIF-173 C allele carriers (OR = 3.84, 95% CI: 1.58-9.34). The risk of SCAG and IM was more evident in subjects carrying IL-8-251 A allele (OR = 6.70, 95% CI: 1.29-9.78) or MIF-173 C allele (OR = 6.54, 95% CI: 2.97-14.20) and positive for H. pylori infection.
CONCLUSION: IL-8-251 and MIF-173 gene polymorphisms are significantly associated with the risk of SCAG and IM in a population with a high risk of GC in Linqu County, Shandong Province, China.
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Gao L, Weck MN, Nieters A, Brenner H. Inverse association between a pro-inflammatory genetic profile and Helicobacter pylori seropositivity among patients with chronic atrophic gastritis: Enhanced elimination of the infection during disease progression? Eur J Cancer 2009; 45:2860-6. [DOI: 10.1016/j.ejca.2009.04.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 04/03/2009] [Accepted: 04/07/2009] [Indexed: 01/20/2023]
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