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Tali Nguefak LD, Faujo Nintewoue GF, Stanley NN, Talla P, Ngatcha G, Tagni SM, Jude‐Marcel NNM, Paul DJ, Kouitcheu Mabeku LB. Endoscopic mucosal phenotypes and endoscopic Sydney system gastritis assessment in relation to Helicobacter pylori infection and upper digestive clinical signs: A 2-year study among patients with gastroduodenal disorders in Cameroon. JGH Open 2024; 8:e13060. [PMID: 38725943 PMCID: PMC11079542 DOI: 10.1002/jgh3.13060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/17/2024] [Accepted: 03/14/2024] [Indexed: 05/12/2024]
Abstract
Background and Aim Helicobacter pylori represents the major pathogen in the pathophysiology of diverse gastrointestinal conditions. This study sought to determine the endoscopic aspect of the gastric mucosa in relation to H. pylori infection in Cameroon. Methods This study was conducted in three reference health facilities in Cameroon from October 2020 to October 2022. The study enrolled 494 consecutive volunteer dyspeptic patients attending to the gastroenterology department of the selected health facilities. A description of the aspect of gastric mucosa of all participants was performed during endoscopy examination, and biopsies were collected for H. pylori detection using rapid urease tests. Results Gastritis, ulcerated lesions, duodenitis, esophagitis, normal mucosa aspect, bulbitis, and gastric neoplastic lesions were found in 40.1, 22.3, 10.9, 10.3, 9.7, 6.3, and 0.40% of biopsy samples, respectively. Erythematous/exudative (45.9%) and enterogastric reflux (12.2%) were the main gastritis types recorded. H. pylori was present in 58.1, 46.3, 87.1, 66.7, and 61.8% in gastritis, duodenitis, bulbitis, esophagitis, and ulcerated lesions, respectively. A positive relationship was noticed between the presence of H. pylori and gastritis (1.037 [0.720-1.493]; P = 0.845), bulbitis (4.237 [1.602-11.235]; P = 0.004), esophagitis (1.515 [0.822-2.793]; P = 0.183), ulcerated lesions (1.233 [0.798-1.904]; P = 0.345), erythematous/exudative gastritis (1.354 [0.768-2.389]; P = 0.295), and enterogastric reflux gastritis (1.159 [0.492-2.733]; P = 0.736). Conclusion Gastritis and erythematous/exudative gastritis are the most frequent gastrointestinal pathophysiology conditions in dyspeptic patient in our milieu. H. pylori infection is responsible for 94.8% of the gastrointestinal pathophysiology conditions with bulbitis as the condition is significantly associated with this bacterium infection.
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Affiliation(s)
- Lionel Danny Tali Nguefak
- Microbiology and Pharmacology Laboratory, Department of Biochemistry, Faculty of ScienceUniversity of DschangDschangCameroon
| | | | - Ngimgoh Ngemeshe Stanley
- Microbiology and Pharmacology Laboratory, Department of Biochemistry, Faculty of ScienceUniversity of DschangDschangCameroon
| | - Paul Talla
- Department of GastroenterologyGeneral Hospital YaoundéYaoundéCameroon
| | - Ghislaine Ngatcha
- Department of GastroenterologyCentre Médicale la CathédraleYaoundéCameroon
| | | | | | - Dzoyem Jean Paul
- Microbiology and Pharmacology Laboratory, Department of Biochemistry, Faculty of ScienceUniversity of DschangDschangCameroon
| | - Laure Brigitte Kouitcheu Mabeku
- Microbiology and Pharmacology Laboratory, Department of Biochemistry, Faculty of ScienceUniversity of DschangDschangCameroon
- Medical Microbiology Laboratory, Department of Microbiology, Faculty of ScienceUniversity of Yaoundé IYaoundéCameroon
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Sun J, Huang L, Li R, Wang T, Wang S, Yu C, Gong J. Comparison of Secular Trends in Peptic Ulcer Diseases Mortality in China, Brazil and India during 1990-2019: An Age-Period-Cohort Analysis. Healthcare (Basel) 2023; 11:healthcare11081085. [PMID: 37107919 PMCID: PMC10137755 DOI: 10.3390/healthcare11081085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND Peptic ulcer disease (PUD) is a common disease worldwide, especially in developing countries. China, Brazil, and India are among the world's fastest-growing emerging economies. This study aimed to assess long-term trends in PUD mortality and explore the effects of age, period, and cohort in China, Brazil, and India. METHODS We collected data from the 2019 Global Burden of Disease Study and used an age-period-cohort (APC) model to estimate the effects of age, period, and cohort. We also obtained net drift, local drift, longitudinal age curve, and period/cohort rate ratios using the APC model. RESULTS Between 1990 and 2019, the age-standardized mortality rates (ASMRs) of PUD and PUD attributable to smoking showed a downward trend in all countries and both sexes. The local drift values for both sexes of all ages were below zero, and there were obvious sex differences in net drifts between China and India. India had a more pronounced upward trend in the age effects than other countries. The period and cohort effects had a similar declining trend in all countries and both sexes. CONCLUSIONS China, Brazil, and India had an inspiring decrease in the ASMRs of PUD and PUD attributable to smoking and to period and cohort effects during 1990-2019. The decreasing rates of Helicobacter pylori infection and the implementation of tobacco-restricting policies may have contributed to this decrease.
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Affiliation(s)
- Jinyi Sun
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Lihong Huang
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Ruiqing Li
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Tong Wang
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Shuwen Wang
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Chuanhua Yu
- School of Public Health, Wuhan University, Wuhan 430071, China
- Global Health Institute, Wuhan University, Wuhan 430071, China
| | - Jie Gong
- School of Public Health, Wuhan University, Wuhan 430071, China
- Wuhan Municipal Center for Disease Control and Prevention, Wuhan 430024, China
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Aziz F, Kazmi SU. Thin Layer Immunoassay: An Economical Approach to Diagnose Helicobacter pylori Infection in Gastroduodenal Ulcer Disease Patients of Pakistan, a Comparative Analysis. Diagnostics (Basel) 2023; 13:diagnostics13030517. [PMID: 36766622 PMCID: PMC9914287 DOI: 10.3390/diagnostics13030517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 02/04/2023] Open
Abstract
Helicobacter pylori is a causative agent of gastritis, gastroduodenal ulcers and gastric adenocarcinoma. The majority of H. pylori-associated patients live in underdeveloped areas, facing the problem of lack of proper diagnostic facility. Hence, a simple and economical assay is required to handle the majority of gastric patients. Serum samples from gastroduodenal ulcers and gastritis patients were screened for H. pylori infection by thin layer immunoassay. A polystyrene plate coated with H. pylori sonicate whole cell antigen (10 µg/mL). Two-fold diluted patient's serum was allowed to react at 37 °C, incubated at 60 °C for 1 min over a water bath and the water condensation pattern for the H. pylori antibody was recorded. ELISAs were used as reference assays to evaluate the efficacy of the developed thin layer immunoassay (TLI). Gastric patients' blood samples (62% male and 6% female) tested positive for H. pylori, while age-wise, 15-25-year-old males (36%) and 65-75-year-old females (50%) showed the highest number of H. pylori infections. TLI showed sensitivity (72-67%), specificity (100%), accuracy (94-69%) and κ value (0.493-0.357) in comparison with wELISA (Surface whole cell ELISA), sELISA (sonicate whole cell ELISA) and kELISA (commercial KIT ELISA). We conclude that thin layer immunoassay is a low cost, fast, simple and clinically reliable method for H. pylori diagnosis at initial stages in patients in under-developed countries.
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Affiliation(s)
- Faisal Aziz
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
- Immunology and Infectious Diseases Research Laboratory, Department of Microbiology, University of Karachi, Karachi 75270, Pakistan
- Correspondence:
| | - Shahana Urooj Kazmi
- Immunology and Infectious Diseases Research Laboratory, Department of Microbiology, University of Karachi, Karachi 75270, Pakistan
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Liang M, Zhu C, Zhao P, Zhu X, Shi J, Yuan B. Comparison of multiple treatment regimens in children with Helicobacter pylori infection: A network meta-analysis. Front Cell Infect Microbiol 2023; 13:1068809. [PMID: 36909732 PMCID: PMC9995679 DOI: 10.3389/fcimb.2023.1068809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Background Multiple regimens have been widely used in the eradication treatment of Helicobacter pylori infection in children. However, there is a lack of comparison and evaluation of their effectiveness in different regions of the world. Methods Randomized controlled trials were retrieved. Review Manager 5.4, Stata SE 15 and R 4.0.4 statistical software were used to analyze date. The ranking probability is assessed according to the surfaces under cumulative ranking (SUCRA). Results 163 studies were eligible for this study, involving 336 arms and 18,257 children, and 10 different interventions. The results showed that the eradication rates of sequential therapy with probiotics (SP), bismuth-containing quadruple (Quadruple) therapy, concomitant therapy and PCN therapy were at least 90%. Cumulative ranking showed that SP therapy had the best eradication effect (SUCRA 92.7%) whereas Bismuth-containing triple therapy (B) had the worst (SUCRA 3.5%). Subgroup analysis suggested that SP therapy ranked first in China and other regions, and the ranking of Triple therapy with probiotics therapy (TP) was equally stable (SUCRA 72.0% vs 76.4% respectively). The security of the SP and TP therapy had great advantages. Conclusions As for the eradication treatment of Helicobacter pylori infection in children, SP therapy ranks highest. SP and TP therapies are most safe.
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Affiliation(s)
- Miaomiao Liang
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chengbi Zhu
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Peipei Zhao
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaohui Zhu
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Junwei Shi
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Bin Yuan
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Bin Yuan,
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Ansari S, Yamaoka Y. Helicobacter pylori Infection, Its Laboratory Diagnosis, and Antimicrobial Resistance: a Perspective of Clinical Relevance. Clin Microbiol Rev 2022; 35:e0025821. [PMID: 35404105 PMCID: PMC9491184 DOI: 10.1128/cmr.00258-21] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Despite the recent decrease in overall prevalence of Helicobacter pylori infection, morbidity and mortality rates associated with gastric cancer remain high. The antimicrobial resistance developments and treatment failure are fueling the global burden of H. pylori-associated gastric complications. Accurate diagnosis remains the opening move for treatment and eradication of infections caused by microorganisms. Although several reports have been published on diagnostic approaches for H. pylori infection, most lack the data regarding diagnosis from a clinical perspective. Therefore, we provide an intensive, comprehensive, and updated description of the currently available diagnostic methods that can help clinicians, infection diagnosis professionals, and H. pylori researchers working on infection epidemiology to broaden their understanding and to select appropriate diagnostic methods. We also emphasize appropriate diagnostic approaches based on clinical settings (either clinical diagnosis or mass screening), patient factors (either age or other predisposing factors), and clinical factors (either upper gastrointestinal bleeding or partial gastrectomy) and appropriate methods to be considered for evaluating eradication efficacy. Furthermore, to cope with the increasing trend of antimicrobial resistance, a better understanding of its emergence and current diagnostic approaches for resistance detection remain inevitable.
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Affiliation(s)
- Shamshul Ansari
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu City, Oita, Japan
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu City, Oita, Japan
- Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, Texas, USA
- Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
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Azami M, Baradaran HR, Dehghanbanadaki H, Kohnepoushi P, Saed L, Moradkhani A, Moradpour F, Moradi Y. Association of Helicobacter pylori infection with the risk of metabolic syndrome and insulin resistance: an updated systematic review and meta-analysis. Diabetol Metab Syndr 2021; 13:145. [PMID: 34922625 PMCID: PMC8684139 DOI: 10.1186/s13098-021-00765-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Conflicting results of recent studies on the association between Helicobacter pylori (H. pylori) infection and the risk of insulin resistance and metabolic syndrome explored the need for updated meta-analysis on this issue. Therefore, this systematic review aimed to estimate the pooled effect of H. pylori infection on the risk of insulin resistance and metabolic syndrome. METHODS To identify case-control studies and cohort studies evaluating the association of H. pylori infection with insulin resistance and metabolic syndrome, a comprehensive literature search was performed from international databases including Medline (PubMed), Web of Sciences, Scopus, EMBASE, and CINHAL from January 1990 until January 2021. We used odds ratio with its 95% confidence interval to quantify the effect of case-control studies and risk ratio with its 95% CI for the effect of cohort studies. RESULTS 22 studies with 206,911 participants were included for meta-analysis. The pooled estimate of odds ratio between H. pylori infection and metabolic syndrome in case-control studies was 1.19 (95% CI 1.05-1.35; I2 = 0%), and in cohort studies, the pooled risk ratio was 1.31 (95% CI 1.13-1.51; I2 = 0%). Besides, case-control studies showed the pooled odds ratio of 1.54 (95% CI 1.19-1.98; I2 = 6.88%) for the association between H. pylori infection and insulin resistance. CONCLUSION In this meta-analysis, the results showed that there was a possibility of metabolic syndrome and insulin resistance in case of H. pylori infection.
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Affiliation(s)
- Mobin Azami
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Hamid Reza Baradaran
- Ageing Clinical & Experimental Research Team, Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Sanandaj, Iran
| | - Hojat Dehghanbanadaki
- Students Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parisa Kohnepoushi
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Lotfolah Saed
- Department of Endocrinology, Faculty of Medicine, Kurdistan University of Medical Science, Sanandaj, Iran
| | - Asra Moradkhani
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Farhad Moradpour
- Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Science, Sanandaj, Iran
| | - Yousef Moradi
- Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Science, Sanandaj, Iran
- Department of Biostatics and Epidemiology, Faculty of Medicine, Kurdistan University of Medical Science, Sanandaj, Iran
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Qi XY, Gong Y, Jiao YW, Zhao J, Zhou Y, Cui XH, Li S, Yang HJ, Qian J, Tang LM. Influence of Helicobacter pylori Infection on Outcomes After Bariatric Surgery: A Systematic Review and Meta-Analysis. Bariatr Surg Pract Patient Care 2020. [DOI: 10.1089/bari.2019.0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Xiao-yang Qi
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yu Gong
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yu-wen Jiao
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jie Zhao
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yan Zhou
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Xiao-han Cui
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Song Li
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Hao-jun Yang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jun Qian
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Li-ming Tang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
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Kato S, Shimizu T, Toyoda S, Gold BD, Ida S, Ishige T, Fujimura S, Kamiya S, Konno M, Kuwabara K, Ushijima K, Yoshimura N, Nakayama Y. The updated JSPGHAN guidelines for the management of Helicobacter pylori infection in childhood. Pediatr Int 2020; 62:1315-1331. [PMID: 32657507 PMCID: PMC7839701 DOI: 10.1111/ped.14388] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/20/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
The Japan Pediatric Helicobacter pylori Study Group published the first guidelines on childhood H. pylori infection in 1997. They were later revised by the Japanese Society for Pediatric Gastroenterology, Hepatology and Nutrition (JSPGHAN). The H. pylori eradication rates, when employing triple therapy with amoxicillin and clarithromycin, currently recommended as the first-line therapy of H. pylori infection in Japan, have substantially decreased, creating an important clinical problem worldwide. In Japanese adults, the "test-and-treat" strategy for H. pylori infection is under consideration as an approach for gastric cancer prevention. However, the combined North American and European pediatric guidelines have rejected such a strategy for asymptomatic children. As risk for gastric cancer development is high in Japan, determining whether the "test-and-treat" strategy can be recommended in children has become an urgent matter. Accordingly, the JSPGHAN has produced a second revision of the H. pylori guidelines, which includes discussion about the issues mentioned above. They consist of 19 clinical questions and 34 statements. An H. pylori culture from gastric biopsies is recommended, not only as a diagnostic test for active infection but for antimicrobial susceptibility testing to optimize eradication therapy. Based upon antimicrobial susceptibility testing of H. pylori strains (especially involving clarithromycin), an eradication regimen including use of the antibiotics to which H. pylori is susceptible is recommended as the first-line therapy against H. pylori-associated diseases. The guidelines recommend against a "test-and-treat" strategy for H. pylori infection for asymptomatic children to protect against the development of gastric cancer because there has been no evidence supporting this strategy.
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Affiliation(s)
- Seiichi Kato
- Kato Children’s ClinicNatoriJapan
- Department of Infectious diseasesKyorin University School of MedicineTokyoJapan
| | - Toshiaki Shimizu
- Department of Pediatrics and Adolescent MedicineJuntendo University Graduate School of MedicineTokyoJapan
| | | | | | - Shinobu Ida
- Department of Pediatric Gastroenterology and EndocrinologyOsaka Women’s and Children’s HospitalOsakaJapan
| | - Takashi Ishige
- Department of PediatricsGunma University Graduate School of MedicineMaebashiJapan
| | - Shigeru Fujimura
- Division of Clinical Infectious Diseases & ChemotherapyTohoku Medical and Pharmaceutical University Graduate School of Pharmaceutical SciencesSendaiJapan
| | - Shigeru Kamiya
- Department of Infectious diseasesKyorin University School of MedicineTokyoJapan
| | - Mutsuko Konno
- Department of PediatricsSapporo Kosei General HospitalSapporoJapan
| | - Kentaro Kuwabara
- Department of PediatricsHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Kosuke Ushijima
- Department of Pediatrics and Child HealthKurume University School of MedicineKurumeJapan
| | | | - Yoshiko Nakayama
- Department of PediatricsShinshu University School of MedicineMatsumotoJapan
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Osmančević L, Osmančević E. The association of recurrent abdominal pain and Helicobacter pylori infection in correlation with esophagogastroduodenoscopy findings. SANAMED 2020. [DOI: 10.24125/sanamed.v15i2.443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract: Aim: The aim of this research was to determine the association of recurrent abdominal pain and Helicobacter pylori (H. pylori) infection in childhood, in correlation with the finding of an upper endoscopy. Introduction: Recurrent abdominal pain (RAP) was defined according to Apley and Naish's criteria from the year 1959 as at least three or more episodes of abdominal pain lasting longer than three months in children older than 3 years, and severe enough to prevent normal activities in child. The association of RAP and H. pylori has been analyzed in several different researches, and there are conflicting results about their interconnection. However, the etiological association of the presence of H. pylori with the onset and development of acute and chronic active gastritis and duodenal ulcer is known. Material and method: The research protocol included a total of 77/183 (42.07%) children divided by age into three subgroups: preschool age (3 to 6.9 years), school-age (7 to 10.9 years) and adolescent age (11 to 15 years) in whom the diagnosis of RAB was determined by meeting the criteria according to Apley and Naish (1959), and the American Academy of Pediatrics (2005). H. pylori infection was confirmed by enzyme-linked immunosorbent assay (ELISA), while esophagogastroduodenoscopy was performed by the device for upper endoscopy type Olimpus GIF Type Q156, in the endoscopic cabinet of the Clinic for Internal Medicine, University Clinical Center Tuzla. Results: Of the total number of examined children (77), the analyse of Helicobacter pylori infection presence showed the biggest number of positive findings in school age 91.3%, in adolescent age 78.0%, while the smallest number was in preschool age (25.0%). The most common findings of upper endoscopy and microscopic findings were described as: antritis acuta in 16%, gastritis chronica activa et erosiva in 32%, and duodenitis acuta (12%). Conclusion: A significant association of H. pylori infection and RAP are confirmed by positive finding of esophagogastroduodenoscopy, leading to conclusion that immunological testing for the presence of this bacteria is justified. After obtaining a positive finding with confirmed infecion, it is necessary to start with the treatment.
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Demographics and Clinical and Endoscopic Characteristics of Patients with Helicobacter pylori Infection and Gastroesophageal Reflux Disease: A Case-Control Study. Gastroenterol Res Pract 2019; 2019:3819893. [PMID: 31198421 PMCID: PMC6526568 DOI: 10.1155/2019/3819893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/17/2019] [Accepted: 03/20/2019] [Indexed: 01/10/2023] Open
Abstract
Background The correlation between Helicobacter pylori (H. pylori) and gastroesophageal reflux disease (GERD) is complex. Some studies showed a protective role of H. pylori infection against GERD. This study was aimed at assessing the role of H. pylori infection in GERD utilizing a large cohort of patients diagnosed with GERD. Methods and Materials All patients who underwent gastroscopy for an indication of GERD during the study period between 2015 and 2017 at the EMMS Nazareth Hospital were considered eligible for the study and therefore were included. H. pylori infection was determined by the rapid urease test or histology. Severity of esophagitis was assessed using the Los Angeles classification. Univariate analysis was performed to figure out differences between patients according to H. pylori infection status. Multivariate regression analysis was conducted to illustrate the predictors of positivity for H. pylori infection. Results 2,508 GERD patients were included with a median age of 49.42 ± 17.96 years. H. pylori infection was detected in 299 (11.9%) patients. GERD patients with H. pylori infection were found to be younger (48.83 ± 17.42 years versus 44.57 ± 17.69 years, p < 0.001), have the tendency to smoke more (1406 (63.6%) versus 266 (89.0%), p < 0.001), and use more proton pump inhibitors or PPIs (1314 (59.5%) versus 242 (80.9%), p < 0.001). In multivariate regression analysis, age (OR 0.987, p < 0.001), smoking status (OR 0.190, p < 0.001), use of ASA/NSAIDs (OR 1.652, p = 0.004), and use of statins (OR 0.499 (95%CI 0.295-0.846), p = 0.010) were found significant among H. pylori-positive individuals. H. pylori-positive subjects have less severe esophagitis and more hiatus hernia. Conclusion Patients with GERD and H. pylori infection were significantly younger, tended to smoke more, and used more PPIs and had significantly lower grades of esophagitis compared to noninfected ones.
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Helicobacter pylori infection in children: an overview of diagnostic methods. Eur J Clin Microbiol Infect Dis 2019; 38:1035-1045. [PMID: 30734129 DOI: 10.1007/s10096-019-03502-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 01/31/2019] [Indexed: 12/14/2022]
Abstract
Children differ from adults regarding Helicobacter pylori (H. pylori) infection in many terms. H. pylori infection represents a key factor in the pathogenesis of duodenal ulcer and chronic gastritis in children. H. pylori infection causes some extraintestinal diseases as well as gastrointestinal diseases. Although, among these illnesses in children, symptoms like recurrent abdominal pain are not specific. Moreover, the role of the pathogen in the growth faltering, iron deficiency anemia, and asthma still remains controversial. A reliable method to detect H. pylori infection is a crucial issue, sand is still a matter of active debate. The tests applied for H. pylori diagnosis are grouped as either invasive or non-invasive methods. Invasive methods consist of endoscopic evaluation, the rapid urease test (RUT), histology, and bacterial culture. Non-invasive tests include the urea breath test (UBT), stool antigen test (SAT), serology, and molecular diagnostic approaches. Use of endoscopy is a pre-requisite for all invasive methods and poses difficulties in children as it is a difficult procedure and requires patient's cooperation. For this reason, the non-invasive tests have been commonly used in children, although their accuracy is not very reliable in some cases. Invasive tests may be opted to confirm the diagnosis as and when needed. This review presents the diagnostic tests used to detect H. pylori infection in children.
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Mohammadian T, Ganji L. The Diagnostic Tests for Detection of Helicobacter pylori Infection. Monoclon Antib Immunodiagn Immunother 2019; 38:1-7. [PMID: 30648911 DOI: 10.1089/mab.2018.0032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Helicobacter pylori causes one of the most common infections in human populations. The role of this bacterium in chronic gastritis, gastric ulcer, gastric cancer, as well as extra-digestive diseases such as ischemic heart disease and chronic obstructive pulmonary diseases, is well known. Prevention and control of these diseases can occur by early diagnosis and eradication of H. pylori infection. At present, different methods have been established to detect H. pylori infection. The biopsy-based tests, which are known as invasive methods, such as rapid urease test and histology, have the highest specificity among the others. Similarly, culture of biopsy samples is used for diagnosis of H. pylori infection. It has a high specificity value, and also allows us to perform antibiotic sensitivity testing. On the contrary, polymerase chain reaction and other molecular methods have good sensitivity and specificity, and can be used for detection of H. pylori infection, its virulence factors, and eradication success after treatment. While serological tests are more appropriate for epidemiological studies, their main weakness for clinical use is low specificity. Overall, specificity and sensitivity, cost, usefulness, and limitation of tests should be considered for selection of detection methods of H. pylori in each country.
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Affiliation(s)
- Taher Mohammadian
- 1 Department of Microbiology, Shahr-e-Qods-Branch, Islamic Azad University, Tehran, Iran
| | - Leila Ganji
- 1 Department of Microbiology, Shahr-e-Qods-Branch, Islamic Azad University, Tehran, Iran.,2 Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Science, Tehran, Iran
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Moubri M, Kalach N, Larras R, Berrah H, Mouffok F, Guechi Z, Cadranel S. Adapted first-line treatment of Helicobacter pylori infection in Algerian children. Ann Gastroenterol 2019; 32:60-66. [PMID: 30598593 PMCID: PMC6302196 DOI: 10.20524/aog.2018.0317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 07/26/2018] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection is acquired in early life and continues to have a high prevalence, especially in developing countries. Growing antibiotic-resistant strains necessitate adapted treatments. This study aimed to compare the efficacy, side effects, and influence of resistance of H. pylori strains between two different treatments. METHODS This prospective, randomized blind study enrolled 112 symptomatic children infected with H. pylori (66 girls, mean age 11.1 years). Treatments, allocated randomly irrespective of the susceptibility of the strains, were either the standard omeprazole-amoxicillin-clarithromycin combination for 7 days (OAC7; group A) or omeprazole-amoxicillin with a higher dose of metronidazole (40 instead of 20 mg/kg/d) for 10 days (OAM10; group B). RESULTS Before treatment, the resistance rates of H. pylori strains to metronidazole or clarithromycin were 37% and 13%, respectively, with 7% resistant to both antibiotics and neither to amoxicillin. Eradication rates obtained with OAM10 (80% by intention-to-treat [ITT] and 88% by per protocol [PP] analysis) were higher than with OAC7 (68% in ITT and 71% PP) and the differences (12% in ITT and 17% PP) were statistically significant (P=0.03). Successful treatments with OAM10 were obtained in metronidazole resistant strains and were more effective in children aged >10 years (P=0.02 by ITT and P=0.04 by PP). Only light or moderate side effects, mainly digestive, were observed. CONCLUSION Because of its therapeutic efficacy, good tolerance and lower cost the OAM10 can be considered as an appropriate first-line therapeutic scheme in Algeria.
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Affiliation(s)
- Mostefa Moubri
- Department of Paediatrics, Hospital N. Hamoud, CHU Hussein-Dey, Algiers, Algeria (Mostefa Moubri, Hassina Berrah)
- Laboratoire Algérien de Recherche sur Helicobacter (LARH), Algiers, Algeria (Mostafa Moubri, Rezki Larras, Hassina Berrah, Fouzia Mouffok, Zhor Guechi)
| | - Nicolas Kalach
- Saint Vincent de Paul Hospital, Institut Catholique de Lille (GH-ICL), Lille, France (Nicolas Kalach)
| | - Rezki Larras
- Laboratoire Algérien de Recherche sur Helicobacter (LARH), Algiers, Algeria (Mostafa Moubri, Rezki Larras, Hassina Berrah, Fouzia Mouffok, Zhor Guechi)
| | - Hassina Berrah
- Department of Paediatrics, Hospital N. Hamoud, CHU Hussein-Dey, Algiers, Algeria (Mostefa Moubri, Hassina Berrah)
- Laboratoire Algérien de Recherche sur Helicobacter (LARH), Algiers, Algeria (Mostafa Moubri, Rezki Larras, Hassina Berrah, Fouzia Mouffok, Zhor Guechi)
| | - Fouzia Mouffok
- Laboratoire Algérien de Recherche sur Helicobacter (LARH), Algiers, Algeria (Mostafa Moubri, Rezki Larras, Hassina Berrah, Fouzia Mouffok, Zhor Guechi)
| | - Zhor Guechi
- Laboratoire Algérien de Recherche sur Helicobacter (LARH), Algiers, Algeria (Mostafa Moubri, Rezki Larras, Hassina Berrah, Fouzia Mouffok, Zhor Guechi)
| | - Samy Cadranel
- Department of Gastroenterology, Queen Fabiola Children’s Hospital, Free University of Brussels, Belgium (Zhor Guechi)
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Moradipour A, Khosravi A, Piri F. Fecal Helicobacter pylori glmM and 16S rRNA genes correlate with serum TNF-α and IL-1β cytokine fluctuations. Acta Microbiol Immunol Hung 2018; 65:489-499. [PMID: 30024269 DOI: 10.1556/030.65.2018.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The proinflammatory cytokines of TNF-α and IL-1β have been reported to be increased in gastric mucosal surfaces in people with Helicobacter pylori infection. Accordingly, this study was conducted to investigate the relationship between the presence of H. pylori genes and the serum oscillations of these cytokines. In this study, DNA was first extracted from the stool samples of infected individuals and used as DNA template to investigate the presence of glmM and 16S rRNA genes in PCR. The ELISA assay was employed to examine serum levels of TNF-α and IL-1β cytokines. According to statistical analysis, there was a significant correlation between the presence of glmM and 16S rRNA genes in the stool samples of infected persons and the serum oscillations of TNF-α and IL-1β cytokines. At the end of study and analysis of the data in case group with HPSAg+, 47.6% of the glmM gene and 23.6% of the 16S rRNA gene were positive. In addition, a significant correlation was observed between the presence of glmM and 16S rRNA genes in the stool specimens of infected individuals and the serum levels of TNF-α and IL-1β cytokines (p < 0.05). Considering the results, it can be concluded that fluctuations in the amount of HPSA, TNF-α, and IL-1β in H. pylori infection depend on the presence of glmM and 16S rRNA genes. The presence of glmM and 16S rRNA in the stool sample increases by boosting the response level to stool antigen (HPSA), IL-1β, and TNF-α, suggesting the prognosis of the disease with a bacterial virulence form using stool tests.
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Affiliation(s)
- Ayat Moradipour
- 1 Department of Molecular Genetics, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Afra Khosravi
- 2 Faculty of Medicine, Department of Immunology, Medical University of Ilam, Ilam, Iran
| | - Fatemeh Piri
- 3 Faculty of Medicine, Department of Anatomy, Lorestan University of Medical Sciences, Khorramabad, Iran
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Mantero P, Matus GS, Corti RE, Cabanne AM, Zerbetto de Palma GG, Marchesi Olid L, Piskorz MM, Zubillaga MB, Janjetic MA, Goldman CG. Helicobacter pylori and corpus gastric pathology are associated with lower serum ghrelin. World J Gastroenterol 2018; 24:397-407. [PMID: 29391762 PMCID: PMC5776401 DOI: 10.3748/wjg.v24.i3.397] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the association of Helicobacter pylori (H. pylori), cagA genotype, and type of gastric pathology with ghrelin, leptin and nutritional status.
METHODS Fasted dyspeptic adults (18-70 years) referred for an upper digestive endoscopy were enrolled in this cross-sectional study. Height and weight were assessed for body mass index (BMI) calculation. A sociodemographic survey was administered and nutrient intake was evaluated with 24 h dietary recalls. Serum total ghrelin and leptin levels were analyzed by enzyme-linked immunosorbent assay. 13C-Urea Breath Test was performed and four gastric biopsies were obtained during endoscopy for histopathology and H. pylori DNA amplification and genotyping. Data analysis was performed using χ2, Mann-Whitney U, Kruskal-Wallis tests, Spearman’s correlation and linear regression.
RESULTS One hundred and sixty-three patients (40.8 ± 14.0 years), 98/65 females/males, were included. Overall, persistent H. pylori prevalence was 53.4% (95%CI: 45.7%-65.8%). Neither nutrient intake nor BMI differed significantly between H. pylori positive and negative groups. Serum ghrelin was significantly lower in infected patients [median 311.0 pg/mL (IQR 230.0-385.5)] than in uninfected ones [median 355.0 pg/mL (IQR 253.8-547.8)] (P = 0.025), even after adjusting for BMI and gender (P = 0.03). Ghrelin levels tended to be lower in patients carrying cagA positive strains both in the antrum and the corpus; however, differences with those carrying cagA negative strains did not reach statistical significance (P = 0.50 and P = 0.49, respectively). In addition, the type and severity of gastric pathology in the corpus was associated with lower serum ghrelin (P = 0.04), independently of H. pylori status. Conversely, leptin levels did not differ significantly between infected and uninfected patients [median 1.84 ng/mL (0.80-4.85) vs 1.84 ng/mL (0.50-5.09), (P = 0.51)].
CONCLUSION H. pylori infection and severity of gastric corpus pathology are associated with lower serum ghrelin. Further studies could confirm a lower ghrelin prevalence in cagA-positive patients.
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Affiliation(s)
- Paula Mantero
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires C1113AAD, Argentina
| | - Gonzalo Sebastián Matus
- Hospital de Gastroenterología “Dr. Carlos Bonorino Udaondo”, Sección Esófago-Estómago, Buenos Aires C1264AAA, Argentina
| | - Rodolfo Ernesto Corti
- Hospital de Gastroenterología “Dr. Carlos Bonorino Udaondo”, Sección Esófago-Estómago, Buenos Aires C1264AAA, Argentina
| | - Ana María Cabanne
- Hospital de Gastroenterología "Dr. Carlos Bonorino Udaondo”, Unidad Patología, Buenos Aires C1264AAA, Argentina
| | - Gerardo Gabriel Zerbetto de Palma
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires C1113AAD, Argentina
- Universidad de Buenos Aires - CONICET, Facultad de Medicina, Instituto de Microbiología y Parasitología Médica (IMPAM), Buenos Aires C1121ABG, Argentina
| | - Liliana Marchesi Olid
- Universidad de Buenos Aires, Facultad de Medicina, Escuela de Nutrición, Buenos Aires C1121ABG, Argentina
| | - María Marta Piskorz
- Hospital de Clínicas “José de San Martín”, División Gastroenterología, Buenos Aires C1120AAR, Argentina
| | - Marcela Beatriz Zubillaga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires C1113AAD, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires C1425FQB, Argentina
| | - Mariana Andrea Janjetic
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires C1113AAD, Argentina
- Universidad de Buenos Aires, Facultad de Medicina, Escuela de Nutrición, Buenos Aires C1121ABG, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires C1425FQB, Argentina
| | - Cinthia Gabriela Goldman
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires C1113AAD, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires C1425FQB, Argentina
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Association of Helicobacter pylori infection with olfactory function using smell identification screening test. Eur Arch Otorhinolaryngol 2017; 274:3403-3405. [PMID: 28653267 DOI: 10.1007/s00405-017-4656-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 06/20/2017] [Indexed: 10/19/2022]
Abstract
The aim of the present study is to investigate the role of Helicobacter pylori in olfactory function. Thirty-six patients (mean age 38.5) aged between 18 and 55 years who were diagnosed with H. pylori by gastric biopsies and age- and sex-matched 30 healthy adults (mean age 33.6) were included in the study. All participants underwent a detailed ear-nose-throat examination including endoscopic examination of the nasal cavity and laryngeal area, and olfactory tests were performed using the Sniffin' Sticks, a 12-item screening test (Sniffin'Sticks; Burghart, Wedel, Germany) and odor scores were recorded. The mean odor score was 7.9 ± 1.7 (range 2-10) in the patient group and 10.3 ± 1.4 (range 6-12) in the control group. There were significant lower scores in the patient group compared to the control group (p < 0.05). In conclusion, it is apparent that there is an association of H. pylori infection with olfactory dysfunction. H. pylori infection should be considered as possible etiological factors in patients with olfactory dysfunction.
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Ozbey G, Hanafiah A. Epidemiology, Diagnosis, and Risk Factors of Helicobacter pylori Infection in Children. Euroasian J Hepatogastroenterol 2017; 7:34-39. [PMID: 29201769 PMCID: PMC5663771 DOI: 10.5005/jp-journals-10018-1208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/03/2016] [Indexed: 01/07/2023] Open
Abstract
H. pylori infection is a global public health problem associated with some gastrointestinal diseases in children, especially in developing countries, since prevalence of H. pylori is low in the developed world. Both noninvasive (stool antigen test, urea breath test, and blood test) and invasive (histology, rapid urease test, and microbiological culture) tests have been utilized to detect H. pylori infection. However, a single test is not reliable enough and does not provide accurate enough data to determine H. pylori infection among children. Risk factors of H. pylori infection in children were related to ethnicities, household properties, geographic location, living conditions, water sources, type of housing, presence/absence of sewage systems, and garbage collection within the living environment. These risk factors were usually associated with the socioeconomic status of the family. This review article aims to determine the gaps in the knowledge of the epidemiology, risk factors, and diagnostic tests of H. pylori infection among children. How to cite this article: Ozbey G, Hanafiah A. Epidemiology, Diagnosis, and Risk Factors of Helicobacter pylori Infection in Children. Euroasian J Hepato-Gastroenterol 2017;7(1):34-39.
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Affiliation(s)
- Gokben Ozbey
- Department of Medical Laboratory, Firat University, Elazig, Turkey
| | - Alfizah Hanafiah
- Department of Medical Microbiology and Immunology Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia
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Raj P, Thompson JF, Pan DH. Helicobacter pylori serology testing is a useful diagnostic screening tool for symptomatic inner city children. Acta Paediatr 2017; 106:470-477. [PMID: 28024098 DOI: 10.1111/apa.13724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/28/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
AIM This study assessed the Helicobacter pylori (H. pylori) serum antibody test as a diagnostic screening tool in symptomatic inner city children. METHODS This was a retrospective study of patients aged one to 18 years who were referred to our paediatric gastroenterology department from 2009 to 2013. We included all patients who had H. pylori serum antibodies and/or faecal antigens who underwent esophagogastroduodenoscopy (EGD) for histology, with or without a gastric tissue rapid urease test. RESULTS A total of 395 patients had EGDs carried out to evaluate epigastric pain, heartburn and nausea or vomiting, and their overall socio-economic Z-score was -2.62. The histology was positive for H. pylori infection in 52 of 395 patients (13%), and epigastric pain was documented in 45 of these 52 patients (87%). Compared to histology, the serum H. pylori antibody test had a sensitivity of 88.4% and a specificity of 93.4%. The tissue rapid urease test and faecal antigen test had sensitivities of 89.3% and 55.6% and specificities of 89.9% and 98.9%, respectively. CONCLUSION The serum H. pylori antibody test had high sensitivity and specificity, and it was a good diagnostic screening tool in our study. Epigastric pain was strongly associated with a current H. pylori infection in our population.
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Affiliation(s)
- Priya Raj
- Division of Gastroenterology Hepatology and Nutrition; The Children's Hospital at Montefiore; Albert Einstein College of Medicine; Bronx NY USA
| | - John F. Thompson
- Division of Gastroenterology Hepatology and Nutrition; The Children's Hospital at Montefiore; Albert Einstein College of Medicine; Bronx NY USA
| | - Debra H. Pan
- Division of Gastroenterology Hepatology and Nutrition; The Children's Hospital at Montefiore; Albert Einstein College of Medicine; Bronx NY USA
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Yalçin M, Yalçin A, Bengi G, Nak SG. Helicobacter pylori Infection among Patients with
Dyspepsia and Intrafamilial Transmission. Euroasian J Hepatogastroenterol 2016; 6:93-96. [PMID: 29201737 PMCID: PMC5578573 DOI: 10.5005/jp-journals-10018-1177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/19/2016] [Indexed: 11/24/2022] Open
Abstract
Introduction Recurrence is an important problem after Helicobacter pylori infection, and intrafamilial transmission has an important role in recurrence. In this study, we aimed to investigate the significance of intrafamilial transmission for recurrence development after treatment as well as its usefulness in prevention. Materials and methods Of the 109 patients who had dyspepsia and underwent endoscopy, 74 patients had H. pylori infection and were enrolled in this study. Infected family members were also detected. Patients were randomly divided into groups I and II, with each group containing 37 individuals. In group I, patients and their infected family members were treated together at the same time. In group II, only the patients were treated. Treatment success was evaluated at the 1st month and evaluation for recurrence was carried out at the 6th month. Results Helicobacter pylori infection was detected in 67.8% of the patients with dyspepsia. Two patients in each group did not show up at the 1st month control. Eradication was achieved in 63 of the 70 patients (90.0%) who completed their treatment. After 6 months, patients with successful treatment had no recurrence in any of the 32 patients in group I. There were recurrence in 3 of the 31 patients (9.7%) in group II; however, there was no statistically significant difference between the groups (p = 0.113). Conclusion Our study showed that eradication treatment in patients and family members with H. pylori infection resulted in a decrease in the number of recurrences even though it was not statistically significant. How to cite this article Yalçin M, Yalçin A, Bengi G, Nak SG. Helicobacter pylori Infection among Patients with Dyspepsia and Intrafamilial Transmission. Euroasian J Hepato-Gastroenterol 2016;6(2):93-96.
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Affiliation(s)
- Mustafa Yalçin
- Department of Gastroenterology, Dokuz Eylul University Medical Faculty, Ege, Turkey
| | - Ayla Yalçin
- Department of Gastroenterology, Uludağ University Medical Faculty, Bursa, Turkey
| | - Göksel Bengi
- Department of Gastroenterology, Dokuz Eylul University Medical Faculty, Ege, Turkey
| | - Selim G Nak
- Department of Gastroenterology, Uludağ University Medical Faculty, Bursa, Turkey
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Ghasemian Safaei H, Faghri J, Moghim S, Nasr Esfahani B, Fazeli H, Makvandi M, Adib M, Rashidi N. Production of IFN-γ and IL-4 Against Intact Catalase and Constructed Catalase Epitopes of Helicobacter pylori From T-Cells. Jundishapur J Microbiol 2015; 8:e24697. [PMID: 26862387 PMCID: PMC4741185 DOI: 10.5812/jjm.24697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 09/30/2015] [Accepted: 10/04/2015] [Indexed: 01/15/2023] Open
Abstract
Background: Helicobacter pylori infection is highly prevalent in the developing countries. It causes gastritis, peptic ulcer disease, and gastrocarcinoma. Treatment with drugs and antibiotics is problematic due to the following reasons: cost, resistance to antibiotics, prolonged treatment and using multiple drugs. Catalase is highly conserved among the Helicobacter species and is important to the survival of the organism. It is expressed in high amounts and is exposed to the surface of this bacterium; therefore it represents a suitable candidate vaccine antigen. Objectives: A suitable approach in H. pylori vaccinology is the administration of epitope based vaccines. Therefore the responses of T-cells (IFN-γ and IL-4 production) against the catalase of H. pylori were determined. Then the quality of the immune responses against intact catalase and three epitopes of catalase were compared. Materials and Methods: In this study, a composition of three epitopes of the H. pylori catalase was selected based on Propred software. The effect of catalase epitopes on T-cells were assayed and immune responses identified. Results: The results of IFN-γ, IL-4 production against antigens, epitopes, and recombinant catalase by T-cells were compared for better understanding of epitope efficiency. Conclusions: The current research demonstrated that epitope sequence stimulates cellular immune responses effectively. In addition, increased safety and potency as well as a reduction in time and cost were advantages of this method. Authors are going to use this sequence as a suitable vaccine candidate for further research on animal models and humans in future.
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Affiliation(s)
- Hajieh Ghasemian Safaei
- Department of Microbiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Jamshid Faghri
- Department of Microbiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Sharareh Moghim
- Department of Microbiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Bahram Nasr Esfahani
- Department of Microbiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Hossein Fazeli
- Department of Microbiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Manoochehr Makvandi
- Department of Virology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Minoo Adib
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Niloufar Rashidi
- Department of Laboratory Sciences, Paramedical School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Research Institute for Infectious Disease of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Corresponding author: Niloufar Rashidi, Department of Laboratory Sciences, Paramedical School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran. Tel: +98-9131942891, Fax: +98-6133738330, E-mail:
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Weiner N, Shaoul R. Impact of Age, Gender, and Addition of Probiotics on Treatment Success for Helicobacter pylori in Children. Glob Pediatr Health 2015; 2:2333794X15607798. [PMID: 27335981 PMCID: PMC4784617 DOI: 10.1177/2333794x15607798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The primary objective of this study was to evaluate the effect of age, gender, and the use of probiotics with standard treatment regimen on Helicobacter pylori eradication. Based on endoscopic findings and clinical presentation, selected patients were treated with standard triple therapy (omeprazole, clarithromycin, and amoxicillin). Those who failed were offered a repeat treatment with omeprazole, metronidazole, and amoxicillin. After the publications of the possible advantages of probiotic treatment on H pylori eradication, the probiotic agent “Probiotica Forte” was routinely added to the treatment. Eradication was noted for 94/130 patients (72%) and for 128/197 patients (65%) with or without probiotic agent, respectively (P = .23). For second-line treatment eradication was noted in 33/46 (72%) and in 9/20 (45%) with or without probiotic agent, respectively (P = .053). The addition of probiotics may improve eradication success especially in addition to second-line treatment.
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Affiliation(s)
- Noam Weiner
- Meyer Children's Hospital of Haifa, Haifa, Israel
| | - Ron Shaoul
- Meyer Children's Hospital of Haifa, Haifa, Israel
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Expression of Helicobacter pylori hspA Gene in Lactococcus lactis NICE System and Experimental Study on Its Immunoreactivity. Gastroenterol Res Pract 2015; 2015:750932. [PMID: 25977689 PMCID: PMC4421100 DOI: 10.1155/2015/750932] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 03/03/2015] [Indexed: 12/12/2022] Open
Abstract
Aim. The aim of this study was to develop an oral Lactococcus lactis (L. lactis) vaccine against Helicobacter pylori (H. pylori). Methods. After L. lactis NZ3900/pNZ8110-hspA was constructed, growth curves were plotted to study whether the growth of recombinant L. lactis was affected after hspA was cloned into L. lactis and whether the growth of empty bacteria, empty plasmid bacteria, and recombinant L. lactis was affected by different concentrations of Nisin; SDS-PAGE and Western blot were adopted, respectively, to detect the HspA expressed by recombinant L. lactis and its immunoreactivity. Results. There was no effect observed from the growth curve after exogenous gene hspA was cloned into L. lactis NZ3900; different concentrations of Nisin did not affect the growth of NZ3900 and NZ3900/pNZ8110, while different concentrations of Nisin inhibited the growth of NZ3900/pNZ8110-hspA except 10 ng/mL Nisin. No HspA strip was observed from SDS-PAGE. Western blot analysis showed that HspA expressed by recombinant bacteria had favorable immunoreactivity. Conclusion. The growth of recombinant L. lactis was suppressed even though a small amount of HspA had been induced to express. Therefore recombinant L. lactis only express HspA which was not suitable to be oral vaccine against Helicobacter pylori.
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Goldstein JL, Cryer B. Gastrointestinal injury associated with NSAID use: a case study and review of risk factors and preventative strategies. DRUG HEALTHCARE AND PATIENT SAFETY 2015; 7:31-41. [PMID: 25653559 PMCID: PMC4310346 DOI: 10.2147/dhps.s71976] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) are effective anti-inflammatory and analgesic agents and are among the most commonly used classes of medications worldwide. However, their use has been associated with potentially serious dose-dependent gastrointestinal (GI) complications such as upper GI bleeding. GI complications resulting from NSAID use are among the most common drug side effects in the United States, due to the widespread use of NSAIDs. The risk of upper GI complications can occur even with short-term NSAID use, and the rate of events is linear over time with continued use. Although gastroprotective therapies are available, they are underused, and patient and physician awareness and recognition of some of the factors influencing the development of NSAID-related upper GI complications are limited. Herein, we present a case report of a patient experiencing a gastric ulcer following NSAID use and examine some of the risk factors and potential strategies for prevention of upper GI mucosal injuries and associated bleeding following NSAID use. These risk factors include advanced age, previous history of GI injury, and concurrent use of medications such as anticoagulants, aspirin, corticosteroids, and selective serotonin reuptake inhibitors. Strategies for prevention of GI injuries include anti-secretory agents, gastroprotective agents, alternative NSAID formulations, and nonpharmacologic therapies. Greater awareness of the risk factors and potential therapies for GI complications resulting from NSAID use could help improve outcomes for patients requiring NSAID treatment.
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Affiliation(s)
- Jay L Goldstein
- Department of Medicine, NorthShore University HealthSystem, Evanston, IL, USA
| | - Byron Cryer
- Division of Gastroenterology, University of Texas Southwestern Medical Center and Dallas VA Medical Center, Dallas, TX, USA
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Fang SB, Ko HY, Huang ST, Huang CH, Li LT, Chen CC, Wang KC, Pai CP, Lee HC, Fang HW. Cinnamomum osmophloeum extracts inhibit growth of Helicobacter pylori and postinfectious interleukin-8 expression in human gastric epithelial cells. RSC Adv 2015. [DOI: 10.1039/c4ra11026a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Extracts from dry leaves ofCinnamomum osmophloeumconcentration-dependently inhibitHelicobacter pylorigrowth and postinfectious interleukin-8 expression in human gastric epithelium.
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Affiliation(s)
- Shiuh-Bin Fang
- Division of Pediatric Gastroenterology and Hepatology
- Department of Pediatrics
- Shuang Ho Hospital
- Taipei Medical University
- Taipei 23561
| | - Hsin-Yu Ko
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Sheng-Tung Huang
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Chih-Hung Huang
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Li-Ting Li
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Chia-Chun Chen
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Ke-Chuan Wang
- Division of Pediatric Gastroenterology and Hepatology
- Department of Pediatrics
- Shuang Ho Hospital
- Taipei Medical University
- Taipei 23561
| | - Cheng-Pin Pai
- Division of Pediatric Gastroenterology and Hepatology
- Department of Pediatrics
- Shuang Ho Hospital
- Taipei Medical University
- Taipei 23561
| | - Hung-Chang Lee
- Department of Pediatrics
- School of Medicine
- College of Medicine
- Taipei Medical University
- Taipei
| | - Hsu-Wei Fang
- Institute of Biochemical and Biomedical Engineering
- National Taipei University of Technology
- Taipei 10608
- Taiwan
- Institute of Biomedical Engineering and Nanomedicine
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Imanieh MH, Dehghani SM, Masjedi A, Rezaianzadeh A, Haghighat M. The Role of Serological Tests in Diagnosis of Helicobacter pylori Infection in Children. JOURNAL OF COMPREHENSIVE PEDIATRICS 2014. [DOI: 10.17795/compreped-17422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Concomitant Colonization of Helicobacter pylori in Dental Plaque and Gastric Biopsy. J Pathog 2014; 2014:871601. [PMID: 25120932 PMCID: PMC4120794 DOI: 10.1155/2014/871601] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 06/26/2014] [Accepted: 07/01/2014] [Indexed: 12/30/2022] Open
Abstract
Frequently reported H. pylori antimicrobial therapy failures suggest that there might be a different niche where the bacteria can stay safe. Current study aims to examine potential role of oral colonization of H. pylori to feed reinfection after primary therapy. However, patients who were admitted to the gastroscopy section were chosen and gastric biopsy and dental plaque specimens were collected. Molecular and biochemical tests were applied to confirm H. pylori identity in different colonization niches. Results showed that 88.8% of dyspeptic patients had epigastric pains with nocturnal awakening when they were hungry (P = 0.023). All patients who received therapy already were again H. pylori positive while they are still carrying H. pylori in dental plaque (P = 0.001). Moreover, H. pylori infection was sought in 100% of gastric biopsy's dyspeptic patients who had ulcerated esophagitis and erosive duodenitis and who were H. pylori positive, and 75% of dyspeptic patients with duodenum deformity had this bacterium in gastric biopsies (P = 0.004). Present study showed that only successful eradication of gastric H. pylori cannot guarantee prevention of reinfection. Conclusively, a new strategy which indicates concomitant eradication in oral and gastric colonization can result in clearance of H. pylori infection.
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Unique features and risk factors of Helicobacter pylori infection at the main children's intermediate school in Rabigh, Saudi Arabia. Indian J Gastroenterol 2014; 33:375-82. [PMID: 24777895 DOI: 10.1007/s12664-014-0463-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 04/06/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study was conducted to determine characters and risk factors of Helicobacter pylori infection and its relationship with recurrent abdominal pain and other gastrointestinal symptoms at the main children's intermediate school in Rabigh, Saudi Arabia. METHODS A cross-sectional study was conducted at a boys' intermediate school. A questionnaire for the gastrointestinal (GI) symptoms and relevant personal and socioeconomic risk factors related to H. pylori infection was distributed followed by H. pylori IgG antibody assay and 14C urea breath test to detect active infection. RESULTS H. pylori was diagnosed by positive urea breath test in 51.5 % of students. H. pylori infection was symptomatic with at least one upper GI symptom in 89.7 % of infected students which was higher than symptomatic cases reported in any other study. H. pylori-infected students had significantly more association with the presence of any upper GI symptom (p < 0.001), recurrent abdominal pain (p < 0.001), anorexia (p < 0.001), nausea (p < 0.026), family history of peptic disease (p < 0.001), drinking desalinated municipal water (p < 0.001), lower income (p = 0.02), and eating outside home (p = 0.003) than uninfected students. Logistic regression analysis showed that the most significant predictors of H. pylori infection were presence of any upper GI symptom (OR 5.3, 95 % CI 2.32-15.71), family history of peptic disease (OR 2.2, 95 % CI 1.11-3.9), and drinking desalinated municipal water (OR 2.1, 95 % CI 1.09-3.2). CONCLUSIONS This study presented unique features and risk factors of H. pylori infection in 12-15-year-old Saudi boys in Rabigh, and mainly supported the role of H. pylori in causing recurrent abdominal pain.
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Hoffmann A, Krumbiegel P, Richter T, Richter M, Röder S, Rolle-Kampczyk U, Herbarth O. Helicobacter Pylori Prevalence in Children Influenced by Non-specific Antibiotic Treatments. Cent Eur J Public Health 2014; 22:48-53. [DOI: 10.21101/cejph.a3890] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Duclaux-Loras R, Lachaux A. Anémie ferriprive de l’adolescent liée à une infection à Helicobacter pylori, à propos d’un cas. Arch Pediatr 2013; 20:395-7. [DOI: 10.1016/j.arcped.2013.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Revised: 10/30/2012] [Accepted: 01/22/2013] [Indexed: 10/26/2022]
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Trout AT, Dillman JR, Neef HC, Rabah R, Gadepalli S, Geiger JD. Case 189: Pediatric Ménétrier disease. Radiology 2013; 266:357-61. [PMID: 23264528 DOI: 10.1148/radiol.12111841] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Andrew T Trout
- Department of Radiology, Section of Pediatric Radiology, C.S. Mott Children's Hospital, University of Michigan Medical Center, Ann Arbor, Mich, USA
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Alam J, Maiti S, Ghosh P, De R, Chowdhury A, Das S, Macaden R, Devarbhavi H, Ramamurthy T, Mukhopadhyay AK. Significant association of the dupA gene of Helicobacter pylori with duodenal ulcer development in a South-east Indian population. J Med Microbiol 2012; 61:1295-1302. [PMID: 22653921 DOI: 10.1099/jmm.0.038398-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A novel virulence factor, duodenal ulcer-promoting gene A (dupA), in Helicobacter pylori has been found to be associated with disease in certain populations but not in others. This study analysed a South-east Indian population as part of the debate about the relevance of dupA for the prediction of clinical outcomes. A total of 140 H. pylori strains isolated from duodenal ulcer (DU) (n = 83) and non-ulcer dyspepsia (NUD) patients (n = 57) were screened by PCR and dot-blot hybridization to determine the presence of the ORFs jhp0917 and jhp0918. Part of jhp0917-jhp0918 was sequenced to search for the C/T insertion that characterizes dupA and the levels of dupA transcripts were also assessed. The PCR and dot-blot results indicated the presence of jhp0917 and jhp0918 in 37.3 % (31/83) and 12.2 % (7/57) of H. pylori strains isolated from DU and NUD patients, respectively. Sequencing analysis showed insertion of a C at nt 1386 in the 3' region of jhp0917, forming the dupA gene in 35 strains. RT-PCR analysis detected the dupA transcript in 28 of these 35 strains. The expression level of the dupA transcript varied from strain to strain, as shown by real-time PCR. The results demonstrated that analysis based on PCR only for dupA may produce an erroneous interpretation. The prevalence of dupA was significantly greater among strains isolated from patients with DU than from patients with NUD in this population (P = 0.001, odds ratio = 4.26, confidence interval = 1.60-11.74). Based on these findings, dupA can be considered a biomarker for DU patients in India. The reported discrepancies for this putative virulence marker in different populations may be due to the genome plasticity of H. pylori.
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Affiliation(s)
- Jawed Alam
- National Institute of Cholera and Enteric Diseases, Kolkata 700010, India
| | - Sankar Maiti
- IISER (Indian Institute of Science Education and Research), Kolkata, India
| | - Prachetash Ghosh
- National Institute of Cholera and Enteric Diseases, Kolkata 700010, India
| | - Ronita De
- National Institute of Cholera and Enteric Diseases, Kolkata 700010, India
| | - Abhijit Chowdhury
- Centre for Liver Research, School of Digestive and Liver Diseases, Institute of Post Graduate Medical Education & Research, Kolkata, India
| | | | | | | | - T Ramamurthy
- National Institute of Cholera and Enteric Diseases, Kolkata 700010, India
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Lactoferrin levels in the gastric tissue of Helicobacter pylori-positive and -negative patients and its effect on anemia. Mediators Inflamm 2012; 2012:214581. [PMID: 22529520 PMCID: PMC3316978 DOI: 10.1155/2012/214581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Accepted: 01/10/2012] [Indexed: 02/06/2023] Open
Abstract
Aim. To determine gastric tissue lactoferrin (Lf) levels of Helicobacter pylori- (Hp-) positive and -negative patients and its effect on anemia. Methods. Cases in which initial presentation was of abdominal pain and that were Hp-positive at endoscopy were included. Hp-positive cases and -negative controls were divided into two groups.
Results. The study included 64 cases (average: 10.2 ± 0.4
years, 39 male and 25 female). Lf levels were subsequently studied on 61 cases. 45 (73.8%) of these were Hp-positive, while 16 (22.2%) were Hp-negative. In Hp-positive cases, mean staining percentages and density of glands in the antral mucosa were 45.5 ± 4.7% and 1.9 ± 0.1, respectively. Hp-negative cases showed significantly different values of 17.8 ± 4.5% and 1.3 ± 0.2, respectively. Hemoglobin and serum ferritin values of Hp-positive cases were 12.7 ± 0.2 g/dL and 32.5 ± 2 ng/mL, but these were comparable with Hp-negative cases (12.6 ± 0.1 g/dL and 30.7 ± 4.4 ng/mL). Conclusions. Tissue Lf was significantly higher in Hp-positive cases compared to Hp-negative cases, but no difference was observed between the two groups with regards to hemoglobin and ferritin level. As a result, it is difficult to say that this rise in Lf plays a role in the development of iron deficiency anemia in Hp-positive patients.
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Melake NA, Shaker GH, Salama MA. Incidence of Helicobacter pylori infection and their clarithromycin-resistant strains in otitis media with effusion regarding phenotypic and genotypic studies. Saudi Pharm J 2012; 20:345-53. [PMID: 23960809 DOI: 10.1016/j.jsps.2012.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 02/19/2012] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) are pathogenic bacteria that infect a half of the human population, colonize gastric mucosa and can be found in gastric juice. Reflux of gastric juice has been suggested to be associated with glue ear in children. It has been suggested that tonsil and adenoid tissues are potential reservoirs of H. pylori infection. These observations raise the question as to whether H. pylori infection might have a role in otitis media with effusion (OME) in children. The objectives of this research were to evaluate the incidence and possible role of H. pylori in the pathogenesis of OME in children and to evaluate the clarithromycin-resistant strains. Molecular assessment was done to evaluate the culture results vs. molecular study. A total of 60 children, who were prone to ventilation tube insertion, adenoidectomy and/or tonsillectomy were included in the study. The control group consisted of 40 children who underwent adenoidectomy and/or tonsillectomy without the history of OME. Samples of the middle ear fluid and mucosa, adenoid tissue, tonsillar tissue and gastric lavage were cultured and underwent polymerase chain reaction (PCR) analysis then were assembled by using QIAxcel System as capillary electrophoresis for H. pylori detection. There was significant difference between the results of cultures and PCR (P < 0.05). Middle ear fluid culture was positive for H. pylori in 40% of the patients vs. 56.7% PCR results while middle ear mucosa culture was positive in 20% vs. 26.7% PCR results. Gastric lavage culture was positive in 46.6% of the patients and PCR was positive in 63.3% of the patients. Adenoid culture and PCR were positive in 56.3% for each, while tonsil culture was positive in 70% and PCR was positive in 90%. H. pylori presence in the gastric lavage, the tonsillar and adenoid tissues by culture and PCR was significantly more frequent in the study group compared to the control group. The minimum inhibitory concentration (MIC) values of clarithromycin-resistant isolates ranged from 1.5 to 8 μg/ml. This study showed the presence of H. pylori in around 50% of the patients with OME. PCR revealed its sensitivity than culture techniques. The incidence of clarithromycin resistance was found to be high among the isolates (39.6%).
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Affiliation(s)
- Nahla A Melake
- Department of Pharmaceutics-Microbiology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Abstract
Chronic gastritis induced by Helicobacter pylori (H. pylori) is the strongest known risk factor for adenocarcinoma of the distal stomach, yet the effects of bacterial eradication on carcinogenesis remain unclear. H. pylori isolates possess substantial genotypic diversity, which engenders differential host inflammatory responses that influence clinical outcome. H. pylori strains that possess the cag pathogenicity island and secrete a functional cytotoxin induce more severe gastric injury and further augment the risk for developing distal gastric cancer. Carcinogenesis is also influenced by host genetic diversity, particularly involving immune response genes such as interleukin-1ß and tumor necrosis factor-α. Human trials and anima studies have indicated that eradication of H. pylori prior to the development of atrophic gastritis offers the best chance for prevention of gastric cancer. However, although the timing of intervention influences the magnitude of suppression of premalignant and neoplastic lesions, bacterial eradication, even in longstanding infections, is of clear benefit to the host. It is important to gain insight into the pathogenesis of H. pylori-induced gastritis and adenocarcinoma not only to develop more effective treatments for gastric cancer, but also because it might serve as a paradigm for the role of chronic inflammation in the genesis of other malignancies that arise within the gastrointestinal tract.
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Affiliation(s)
- Richard M Peek
- Division of Gastroenterology Departments of Medicine and Cancer Biology Vanderbilt University School of Medicine Nashville, TN, USA 37232; Department of Veterans Affairs Medical Center Nashville, TN, USA 37212.
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Strickertsson JAB, Døssing KBV, Aabakke AJM, Nilsson HO, Hansen TVO, Knigge U, Kjær A, Wadström T, Friis-Hansen L. Interferon-γ inhibits ghrelin expression and secretion via a somatostatin-mediated mechanism. World J Gastroenterol 2011; 17:3117-25. [PMID: 21912454 PMCID: PMC3158411 DOI: 10.3748/wjg.v17.i26.3117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 03/05/2011] [Accepted: 03/12/2011] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate if and how the proinflammatory cytokine interferon γ (IFNγ) affects ghrelin expression in mice.
METHODS: The plasma concentration of ghrelin, and gastric ghrelin and somatostatin expression, were examined in wild-type mice and mice infected with Helicobacter pylori (H. pylori). Furthermore, ghrelin expression was examined in two achlorhydric mouse models with varying degrees of gastritis due to bacterial overgrowth. To study the effect of IFNγ alone, mice were given a subcutaneous infusion of IFNγ for 7 d. Finally, the influence of IFNγ and somatostatin on the ghrelin promoter was characterized.
RESULTS: H. pylori infection was associated with a 50% reduction in ghrelin expression and plasma concentration. Suppression of ghrelin expression was inversely correlated with gastric inflammation in achlorhdyric mouse models. Subcutaneous infusion of IFNγ suppressed fundic ghrelin mRNA expression and plasma ghrelin concentrations. Finally, we showed that the ghrelin promoter operates under the control of somatostatin but not under that of IFNγ.
CONCLUSION: Gastric infection and inflammation is associated with increased IFNγ expression and reduced ghrelin expression. IFNγ does not directly control ghrelin expression but inhibits it indirectly via somatostatin.
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Alvandi A, Farajzadeh A, Ghaforian Borojerdnia M, Jelodar A, Aryan E, Gholipour A, Masjedizadeh A, Makvandi M. Periplasmic expression and one-step purification of urease subunit B of Helicobacter pylori. World J Microbiol Biotechnol 2011. [DOI: 10.1007/s11274-010-0540-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Food-Grade Expression of Helicobacter pylori UreB Subunit in Lactococcus lactis and its Immunoreactivity. Curr Microbiol 2011; 62:1726-31. [DOI: 10.1007/s00284-011-9920-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 03/04/2011] [Indexed: 01/31/2023]
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Agudo S, Alarcón T, Urruzuno P, Martínez MJ, López-Brea M. Detection of Helicobacter pylori and clarithromycin resistance in gastric biopsies of pediatric patients by using a commercially available real-time polymerase chain reaction after NucliSens semiautomated DNA extraction. Diagn Microbiol Infect Dis 2010; 67:213-9. [PMID: 20542201 DOI: 10.1016/j.diagmicrobio.2010.02.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 02/16/2010] [Accepted: 02/26/2010] [Indexed: 02/07/2023]
Abstract
UNLABELLED The aim of this study was to evaluate a commercially available kit, MutaREAL Helicobacter pylori (Inmundiagnostik, Bensheim, Germany) real-time polymerase chain reaction (PCR), for detection of H. pylori infection and point mutations in the 23S rRNA genes responsible for clarithromycin resistance in gastric biopsies. METHODS Gastric biopsies were obtained by endoscopy from pediatric patients with gastric symptoms, cultured according to standard microbiologic procedures, and clarithromycin resistance was determined by E-test. DNA extraction was performed by NucliSens platform with the NucliSens magnetic extraction reagents (bioMérieux, Marcy-l'Etoile, France) according to the manufacturer's instructions. MutaREAL kit was used according to manufacturer recommendations in a LightCycler (Roche Diagnostics Gmbh, Mannheim, Germany) for the detection of H. pylori infection and clarithromycin susceptibility. RESULTS Amplification was positive for H. pylori in 62 and negative in 44 biopsies out of 106 biopsies. All negative biopsies were positive for human beta-globin gene. This real-time PCR assay showed sensitivity of 93.33% (negative predictive value, 90.90%) and specificity of 86.95% (positive predictive value, 90.32%) for H. pylori detection. Clarithromycin resistance was detected in 26 cases by PCR with a sensitivity and specificity of 90.62 and 95.83, respectively. CONCLUSIONS MutaREAL kit was able to detect H. pylori and its clarithromycin susceptibility with high efficacy. This method is quicker than culture and is suitable to be done in 1 h after DNA extraction. The new system of automatic extraction will lead to reduction in the total time.
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Affiliation(s)
- Sonia Agudo
- Department of Microbiology, Hospital De La Princesa, Madrid, Spain.
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Awdalla HI, Ragab MH, Hanna LN. Environmental risk factors affecting transmission of Helicobacter pylori infection in Egypt. J Public Health (Oxf) 2010. [DOI: 10.1007/s10389-009-0309-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Restriction fragment length polymorphism of urease C and urease B genes of Helicobacter pylori strains isolated from Brazilian patients with peptic ulcer and chronic gastritis. Dig Dis Sci 2009; 54:1487-93. [PMID: 19005761 DOI: 10.1007/s10620-008-0525-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Accepted: 09/01/2008] [Indexed: 01/27/2023]
Abstract
The aim of the present work is to identify the presence of Helicobacter pylori bacterium in samples of gastric mucosa fragments, obtained by gastric biopsy, from Brazilian patients with peptic ulcer and chronic gastritis and also to determine differences among the prevalent strains in these two diseases by urease C and urease B genes amplification utilizing nested polymerase chain reaction (PCR) and PCR. We encountered 17 genotyping patterns for urease C and 7 for urease B and, although no significant differences were found among the patterns encountered for both diseases, we found predominant groups for each disease. Typing methods of the products obtained by nested PCR and PCR show a functional scheme and are of great importance for epidemiologic studies and H. pylori strain characterization, in addition to allowing correlation among the several strains and their role in the diseases caused by this microorganism.
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CagA and VacA polymorphisms do not correlate with severity of histopathological lesions in Helicobacter pylori-infected Greek children. J Clin Microbiol 2009; 47:2426-34. [PMID: 19535517 DOI: 10.1128/jcm.00159-09] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The presence of various numbers of EPIYA tyrosine phosphorylation motifs in the CagA protein of Helicobacter pylori has been suggested to contribute to pathogenesis in adults. In this prospective study, we characterized H. pylori isolates from symptomatic children, with reference to the diversity of functional EPIYA motifs in the CagA protein and vacA isotypes, and assessed the potential correlation with the histopathological manifestations of the infection. We analyzed 105 H. pylori isolates from 98 children and determined the diversity of EPIYA motifs in CagA by amplification and sequencing of the 3' variable region of the cagA gene as well as vacA isotypes for the signal, middle, and intermediate regions. CagA phosphorylation and levels of secreted IL-8 were determined following in vitro infection of AGS gastric epithelial cells. Histopathological evaluation of H. pylori colonization, activity, and severity of the associated gastritis was performed according to the updated Sydney criteria. EPIYA A (GLKN[ST]EPIYAKVNKKK), EPIYA B (Q[V/A]ASPEPIY[A/T]QVAKKVNAKI), and EPIYA C (RS[V/A]SPEPIYATIDDLG) motifs were detected in the ABC (46.6%) and ABCC (17.1%) combinations. No isolates harboring more than two EPIYA C motifs in CagA were found. The presence of isogenic strains with variable numbers of CagA EPIYA C motifs within the same patient was detected in seven cases. Occurrence of increasing numbers of EPIYA C motifs correlated strongly with presence of a high-vacuolation (s1 or s2/i1/m1) phenotype and age. A weak positive correlation was observed between vacuolating vacA genotypes and presence of nodular gastritis. However, CagA- and VacA-dependent pathogenicities were not found to contribute to severity of histopathology manifestations in H. pylori-infected children.
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Zhang XJ, Duan G, Zhang R, Fan Q. Optimized Expression of Helicobacter pylori ureB Gene in the Lactococcus lactis Nisin-Controlled Gene Expression (NICE) System and Experimental Study of Its Immunoreactivity. Curr Microbiol 2009; 58:308-14. [DOI: 10.1007/s00284-008-9349-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Revised: 11/07/2008] [Accepted: 12/08/2008] [Indexed: 12/18/2022]
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Ozcan C, Polat A, Otağ F, Görür K. Does Helicobacter pylori play a role in etiology of nasal polyposis? Auris Nasus Larynx 2008; 36:427-30. [PMID: 19010623 DOI: 10.1016/j.anl.2008.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 08/20/2008] [Accepted: 09/05/2008] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Investigation of the possible relation between nasal polyposis (NP) and Helicobacter pylori (HP). PATIENTS AND METHODS Biopsy specimens of 25 patients with NP were evaluated. There were 16 men and 9 women enrolled in the study (NP) group. There were 10 men and 4 women in the control group. Campylobacter-like organism (CLO) test, immunohistochemical examination on nasal polyp tissue biopsy specimens and serological analysis were used for detecting HP. RESULTS There was only one (4%) positive NP case for CLO test. There were six cases in the study group with positive anti HP IgG test. Two control nasal mucosa were CLO positive. There were three cases in control group with positive anti HP IgG. There were no positive cases with positive anti IgM HP regarding both the study and the control groups. The immunohistochemical examination of the specimens taken from the patients with NP and control patients revealed that all patients were negative for HP. Positive CLO test and serologic test ratios were not statistically significant between NP and control groups. CONCLUSION The results of this study did not confirm other investigators. The suggested role of HP in the previous reports regarding NP may demonstrate transient occurrence of HP. It may not be treated as a possible etiological factor in NP.
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Affiliation(s)
- Cengiz Ozcan
- Department of Otorhinolaryngology, School of Medicine, Mersin University, Ihsaniye Mah. 123, Cadde, 4931 Sokak, TR-33079 Mersin, Turkey.
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Siai K, Ghozzi M, Ezzine H, Medjahed N, Azzouz M. Prevalence and risk factors of Helicobacter pylori infection in Tunisian children: 1055 children in Cap-Bon (northeastern Tunisia). ACTA ACUST UNITED AC 2008; 32:881-6. [DOI: 10.1016/j.gcb.2008.03.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2007] [Revised: 03/21/2008] [Accepted: 03/26/2008] [Indexed: 11/26/2022]
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Breath tests in pediatrics. Clin Chim Acta 2008; 397:1-12. [DOI: 10.1016/j.cca.2008.07.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 07/22/2008] [Accepted: 07/22/2008] [Indexed: 12/19/2022]
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Low prevalence of Helicobacter pylori infection in Canadian children: a cross-sectional analysis. CANADIAN JOURNAL OF GASTROENTEROLOGY = JOURNAL CANADIEN DE GASTROENTEROLOGIE 2008; 22:485-9. [PMID: 18478134 DOI: 10.1155/2008/410176] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND The incidence and prevalence rates of childhood Helicobacter pylori infection vary greatly by nation, with infection rates of 8.9% to 72.8% reported in developed and developing countries, respectively. To date, few studies have assessed the prevalence of H pylori in Canadian children, with studies limited to Aboriginal communities and single tertiary care centres from Ontario and Quebec. OBJECTIVES To determine the prevalence of H pylori in consecutive children referred to three Canadian tertiary care academic centres for upper gastrointestinal (GI) endoscopy due to upper GI symptoms, and to determine the sensitivity and specificity of the carbon-13-labelled urea breath test, the rapid urease test and the H pylori stool monoclonal antigen test. RESULTS Two hundred four patients were recruited. The prevalence of H pylori was 7.1%. Of the H pylori-positive patients, 41.7% were male, with a mean age of 10.3 years. Ethnic minorities accounted for 42% of the H pylori-positive patients. Consistent with previous observations, the sensitivity and specificity of the carbon-13-labelled urea breath test were 1.0 and 0.98, respectively. The sensitivity and specificity of the rapid urease test were 1.0 and 0.99, respectively. Stool samples were collected from 34 patients from one centre, with a sensitivity and specificity of 1.0 and 0.68, respectively. No defining symptoms of H pylori infection were evident and no peptic ulcer disease was demonstrated. CONCLUSION H pylori infection rates in Canadian children with upper GI symptoms are low, and are lower than those reported for other developed countries. Further studies are required in Canada to determine the prevalence in the general population and specifically in the populations at risk.
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Vayisoglu Y, Ozcan C, Polat A, Delialioglu N, Gorur K. Does Helicobacter pylori play a role in the development of chronic adenotonsillitis? Int J Pediatr Otorhinolaryngol 2008; 72:1497-501. [PMID: 18691771 DOI: 10.1016/j.ijporl.2008.06.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 06/25/2008] [Accepted: 06/26/2008] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Evaluation of the possible relationship between chronic adenotonsillitis and Helicobacter pylori (HP). PATIENTS AND METHODS The study was performed prospectively on 91 pediatric patients who underwent tonsillectomy, adenoidectomy or adenotonsillectomy due to chronic tonsillitis and/or adenoiditis. The adenotonsillectomy specimens were examined for HP colonization by rapid urease test (RUT) and immunohistochemical evaluation. Before surgery, anti-HP IgG and IgA antibody titers were detected by enzyme linked immunosorbent assay (ELISA) test in venous blood samples of the patients. RESULTS The RUT was positive in only two of the adenoidectomy specimens (2.2%) and in none of the tonsillectomy specimens. A positive result was not detected in any tonsillectomy specimens using immunohistochemical examination. Serum IgG antibody was positive in 21 (23%) patients, IgA antibody was detected in 7 (7.69%) patients and both tests were positive only in 3 (3.29%) patients. CONCLUSION The results of this study suggested that HP would not colonize in tonsil tissue of patients with chronic tonsillitis.
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Affiliation(s)
- Yusuf Vayisoglu
- Mersin University, School of Medicine, Department of Otorhinolaryngology, Mersin, Turkey.
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Identification of volatile organic compounds secreted from cancer tissues and bacterial cultures. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 868:88-94. [DOI: 10.1016/j.jchromb.2008.04.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 04/17/2008] [Accepted: 04/26/2008] [Indexed: 01/28/2023]
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Sabbi T, De Angelis P, Dall'Oglio L. Helicobacter pylori infection in children: management and pharmacotherapy. Expert Opin Pharmacother 2008; 9:577-85. [PMID: 18312159 DOI: 10.1517/14656566.9.4.577] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Helicobacter pylori infection is mainly acquired during childhood: it is recognised as a cause of gastritis and peptic ulcer and it has been classified as a group A carcinogen by the World Health Organisation. The exact mode of transmission is as yet unknown. The aim of this review was to analyse the literature about H. pylori infection in paediatric patients. The large diffusion of H. pylori infection in paediatric patients, the absence of a specific clinical feature, the new non-invasive methods for diagnosis and follow-up, which are still not validated and the different therapeutic schedules have led to the necessity of determining the real clinical outcome in affected children and adolescents. The scope of the review was to identify better eradication therapy and the most important factors in treatment failure. The international literature has shown the importance of culture, antibiograms, the compliance of families and patients and the use of probiotics during triple eradication therapy. The review paid attention to the management, diagnostic techniques and therapy of this infection in paediatric patients.
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Affiliation(s)
- Tamara Sabbi
- Bambino Gesù Pediatric Hospital, Endoscopic Digestive Unit, Piazza S. Onofrio, 4-00165 Rome, Italy.
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