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Liang Z, Xu C, Ji AL, Liang S, Kan HD, Chen RJ, Lei J, Li YF, Liang ZQ, Cai TJ. Effects of short-term ambient air pollution exposure on HPV infections: A five-year hospital-based study. CHEMOSPHERE 2020; 252:126615. [PMID: 32443276 DOI: 10.1016/j.chemosphere.2020.126615] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Human papillomavirus (HPV) infections are common sexually-transmitted diseases among reproductive-aged women with increasing concern. Until now, there are no prior study about the association between HPV infections and ambient air pollution. This study aimed to explore the relationship between short-term exposure to ambient pollutants and daily outpatient visits for HPV infections in China. Data of daily outpatient visits for HPV infections were obtained from January 1, 2014 to December 31, 2018 (1826 days). Over-dispersed Poisson generalized additive models were applied by adjusting weather conditions and day of the week. We identified a total of 39,746 cases for HPV infections. A 10 μg/m3 increase of PM10, PM2.5, SO2, and NO2 or a 0.1 mg/m3 rise of CO in concurrent day (lag 0) concentrations was related to an elevation of 0.822% (95% Cl: 0.282%, 1.36%), 1.05% (95% Cl: 0.280%, 1.81%), 5.72% (95% Cl: 1.79%, 9.65%), 5.02% (95% Cl: 3.45%, 6.60%), and 2.40% (95% Cl: 1.43%, 3.37%) in daily outpatient-visits for HPV infections, respectively. The association was more significant in those women aged 41 or over. As for 10 μg/m3 increase of O3, a -1.33% (95% Cl: -2.13%, -0.530%) change was observed on the lag 03 and such effects appeared to be more obvious in the aged 18-40 group. Our results provided the first evidence that short-term exposure to ambient pollutants was related to, which may be indirectly, the increased risk of HPV infections while O3 may act as a "protective" factor.
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Affiliation(s)
- Zhen Liang
- Department of Epidemiology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Department of Obstetrics and Gynecology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Chen Xu
- Department of Epidemiology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Troop 94498 of PLA, Nanyang, 474350, China
| | - Ai-Ling Ji
- Department of Preventive Medicine & Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing, 401331, China
| | - Shi Liang
- Department of Obstetrics and Gynecology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Brigham Young University Provo, UT 84602, 801-422-4636, USA
| | - Hai-Dong Kan
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Ren-Jie Chen
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Jie Lei
- Department of Internal Medicine, Hui Long-Ba Town Hospital, Chongqing, 401335, China
| | - Ya-Fei Li
- Department of Epidemiology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Zhi-Qing Liang
- Department of Obstetrics and Gynecology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Tong-Jian Cai
- Department of Epidemiology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
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Kotilea K, Bontems P, Touati E. Epidemiology, Diagnosis and Risk Factors of Helicobacter pylori Infection. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1149:17-33. [PMID: 31016621 DOI: 10.1007/5584_2019_357] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori is a human-specific pathogen, which leads to gastric pathologies including gastric cancer. It is a highly unique bacterium considered as a carcinogenic agent. H. pylori remains a major human health problem, responsible for ~90% of the gastric cancer cases. Approximately four billion individuals have been detected for H. pylori infection worldwide in 2015. At the turn of the twenty-first century, the prevalence of H. pylori has been declining in highly industrialized countries of the Western world, whereas prevalence has plateaued at a high level in developing and newly industrialized countries. However, the infection status remains high in immigrants coming from countries with high prevalence of H. pylori infection. H. pylori can be diagnosed both by invasive and non-invasive methods. Urea breath test and stool antigens detection are among the most commonly used non-invasive ones. Although the way H. pylori is transmitted remains still not fully clear, the level of contamination is strongly dependent on the familial and environmental context, with a drastic impact of living conditions with poor hygiene and sanitation. However, familial socioeconomic status is the main risk factor for H. pylori infection among children. In addition, food and water source have a high impact on the prevalence of H. pylori infection worldwide. This chapter highlights the latest knowledge in the epidemiology of H. pylori infection, its diagnosis and critical risk factors responsible for its high prevalence in some populations and geographic areas.
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Affiliation(s)
- Kallirroi Kotilea
- Paediatric Gastroenterology Unit, Université Libre de Bruxelles, Hôpital Universitaire des Enfants Reine Fabiola, Bruxelles, Belgium
| | - Patrick Bontems
- Paediatric Gastroenterology Unit, Université Libre de Bruxelles, Hôpital Universitaire des Enfants Reine Fabiola, Bruxelles, Belgium
| | - Eliette Touati
- Unit of Helicobacter Pathogenesis, Institut Pasteur, Paris, France.
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Amaral O, Fernandes I, Veiga N, Pereira C, Chaves C, Nelas P, Silva D. Living Conditions and Helicobacter pylori in Adults. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9082716. [PMID: 29159181 PMCID: PMC5660766 DOI: 10.1155/2017/9082716] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/03/2017] [Accepted: 09/12/2017] [Indexed: 01/26/2023]
Abstract
INTRODUCTION Infection by the bacterium Helicobacter pylori (H. pylori) is transmissible and is considered a public health issue which affects people of all ages. The objective of this study was to identify factors (lifestyles, dietary factors, and hygiene conditions) related to the prevalence of H. pylori infection. METHODS We carried out an observational cross-sectional study with a community sample of adults from the municipalities of Viseu and Sátão, Portugal. The final sample resulted in 166 adults. The data were collected through a self-administered questionnaire with questions regarding sociodemographic aspects and lifestyles. H. pylori infection was identified using the 13C-urea breath test. RESULTS No association was found between the prevalence of H. pylori infection and the use of tobacco, alcohol, or coffee or dietary factors. The prevalence of H. pylori infection was higher in adults who reported higher consumption of fried food and lower consumption of vegetables and fruit. H. pylori infection was significant for the variables of lower frequency of handwashing before going to the bathroom (p = 0.02) and well water consumption (p = 0.05). CONCLUSION A significant association was found for H. pylori infection with the lower frequency of handwashing before going to the bathroom and the consumption of well water.
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Affiliation(s)
- Odete Amaral
- CI&DETS, Polytechnic Institute of Viseu, Viseu, Portugal
| | | | - Nélio Veiga
- Health Sciences Institute, Universidade Católica Portuguesa, Lisbon, Portugal
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Lisbon, Portugal
| | - Carlos Pereira
- CI&DETS, Polytechnic Institute of Viseu, Viseu, Portugal
| | - Claudia Chaves
- CI&DETS, Polytechnic Institute of Viseu, Viseu, Portugal
| | - Paula Nelas
- CI&DETS, Polytechnic Institute of Viseu, Viseu, Portugal
| | - Daniel Silva
- CI&DETS, Polytechnic Institute of Viseu, Viseu, Portugal
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4
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Fernández-de-Larrea N, Michel A, Romero B, Butt J, Pawlita M, Pérez-Gómez B, Castaño-Vinyals G, Moreno V, Martín V, Amiano P, Castilla J, Fernández-Tardón G, Dierssen-Sotos T, Clofent J, Alguacil J, Huerta JM, Jiménez-Moleón JJ, Barricarte A, Molinuevo A, Fernández-Villa T, Casabonne D, Sierra Á, Kogevinas M, de Sanjosé S, Pollán M, Del Campo R, Waterboer T, Aragonés N. Antibody reactivity against Helicobacter pylori proteins in a sample of the Spanish adult population in 2008-2013. Helicobacter 2017; 22. [PMID: 28737284 DOI: 10.1111/hel.12401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Differences in Helicobacter pylori protein expression have been related to the risk of severe gastric diseases. In Spain, a marked geographic pattern in gastric cancer mortality has long been reported. OBJECTIVE To characterize antibody reactivity patterns against 16 H. pylori proteins, by age, sex, and region of birth, in a large sample of the Spanish adult population. MATERIALS AND METHODS Antibody reactivity was quantified by H. pylori multiplex serology in a sample from the control group of the multicase-control study MCC-Spain. For this analysis, 2555 population-based controls were included. Each participant was classified as seropositive or seronegative for each protein according to specific cutoffs. Overall H. pylori seroprevalence was defined as positivity against ≥4 proteins. Descriptive analyses by age, sex, and region of birth were performed for both seroprevalence and seroreactivity (continuous measure). Differences among groups were tested by logistic and linear regression models. RESULTS Overall H. pylori seroprevalence increased with age in both sexes. For ages 55-74, seroprevalence was lower in women than in men (84% vs 92%, P<.001). Region of birth explained 7% of the variability in seroprevalence. Among H. pylori seropositive subjects, proteins with the highest seroprevalence were GroEL, NapA, HP231, and Omp. Seropositivity for most of the proteins increased or remained stable with age, rising mainly for CagA, GroEL, and HyuA in women. A clear cohort effect was not observed. CONCLUSIONS This is the first study to describe the antibody patterns against 16 H. pylori proteins in the Spanish population. We found variability in the H. pylori antibody profiles according to both individual factors such as age and sex, and environmental factors such as the region of birth. The slightness of the reduction in seropositivity with decreasing age highlights the ongoing importance of this infection.
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Affiliation(s)
- Nerea Fernández-de-Larrea
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Angelika Michel
- Division of Molecular Diagnostics of Oncogenic Infections, Infection, Inflammation and Cancer Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Beatriz Romero
- Department of Microbiology, Ramón y Cajal University Hospital (IRYCIS), Madrid, Spain
| | - Julia Butt
- Division of Molecular Diagnostics of Oncogenic Infections, Infection, Inflammation and Cancer Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Michael Pawlita
- Division of Molecular Diagnostics of Oncogenic Infections, Infection, Inflammation and Cancer Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Beatriz Pérez-Gómez
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Gemma Castaño-Vinyals
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Victor Moreno
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain.,Cancer Prevention and Control Program, Catalan Institute of Oncology-IDIBELL, Hospitalet de Llobregat, Spain
| | - Vicente Martín
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,The Research Group in Gene, Environment and Health Interactions (GIGAS), University of León, León, Spain.,Faculty of Health Sciences, Area of Preventive Medicine and Public Health, Department of Biomedical Sciences, University of León, León, Spain
| | - Pilar Amiano
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastián, Spain
| | - Jesús Castilla
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Instituto de Salud Pública de Navarra - Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Guillermo Fernández-Tardón
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,IUOPA, University of Oviedo, Oviedo, Spain
| | - Trinidad Dierssen-Sotos
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,IDIVAL, University of Cantabria, Santander, Spain
| | - Juan Clofent
- Gastroenterology Department, Sagunto University Hospital, Sagunto, Spain.,Gastroenterology Department, La Fe University and Politecnic Hospital, Valencia, Spain
| | - Juan Alguacil
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Centro de Investigación en Recursos Naturales, Salud, y Medio Ambiente (RENSMA), Universidad de Huelva, Huelva, Spain
| | - José María Huerta
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
| | - José Juan Jiménez-Moleón
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada Health Research Institute (ibs.GRANADA), Granada, Spain.,Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Aurelio Barricarte
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Instituto de Salud Pública de Navarra - Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Amaia Molinuevo
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Tania Fernández-Villa
- The Research Group in Gene, Environment and Health Interactions (GIGAS), University of León, León, Spain.,Faculty of Health Sciences, Area of Preventive Medicine and Public Health, Department of Biomedical Sciences, University of León, León, Spain
| | - Delphine Casabonne
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Cancer Epidemiology Research Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Ángeles Sierra
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Manolis Kogevinas
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Silvia de Sanjosé
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Cancer Epidemiology Research Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Marina Pollán
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Rosa Del Campo
- Department of Microbiology, Ramón y Cajal University Hospital (IRYCIS), Madrid, Spain.,Spanish Network for Research in Infectious Diseases, (REIPI) Red Española de Investigación en Patología Infecciosa, Sevilla, Spain
| | - Tim Waterboer
- Division of Molecular Diagnostics of Oncogenic Infections, Infection, Inflammation and Cancer Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nuria Aragonés
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER of Epidemiology and Public Health), Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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Breckan RK, Paulssen EJ, Asfeldt AM, Kvamme JM, Straume B, Florholmen J. The All-Age Prevalence of Helicobacter pylori Infection and Potential Transmission Routes. A Population-Based Study. Helicobacter 2016; 21:586-595. [PMID: 27172105 DOI: 10.1111/hel.12316] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Previous research on H. pylori epidemiology has mostly focused on adult populations. We have aimed to study H. pylori prevalence in all age groups including children and adolescents and to identify potential routes of transmission. METHODS Subjects from all age groups (children 0-11 years, adolescents 12-17 years and adults ≥18 years of age), recruited from both an urban and a rural community in Northern Norway, were invited to provide stool samples for the diagnosis of H. pylori antigen and to fill in a questionnaire (adult and adolescents only) on gastrointestinal symptoms, lifestyle factors and biometric data. RESULTS A total of 1 624 (35.3%) of the invited subjects, including 173 (39.3%) of the children, 46 (19.2%) of the adolescents, and 1 416 (36.1%) of the adults, responded to the invitation. H. pylori infection was nearly undetectable (0.6%) among the children, whereas the prevalence increased from 20% in adolescents toward a peak of 45% in the highest age group. Univariate analyses of possible risk factors of H. pylori infection showed significant associations to private well water, the use of outhouse toilet, and having farm animals in childhood, but the associations waned in multivariate analyses. CONCLUSIONS In our populations, with apparent high hygienic standards, the transmission of H. pylori infection may start not only in childhood, but also in adolescence, where potential transmission routes may be outdoor toilet use, private well water, and farm animals.
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Affiliation(s)
- Ragnar K Breckan
- Department of Gastroenterology, Division of Medicine, Nordland Hospital, Bodø, Norway.,Research group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Eyvind J Paulssen
- Research group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Gastroenterology, University Hospital of North Norway, Tromsø, Norway
| | - Anne Mette Asfeldt
- Department of Microbiology, University Hospital of North Norway, Tromsø, Norway
| | - Jan-Magnus Kvamme
- Research group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Gastroenterology, University Hospital of North Norway, Tromsø, Norway
| | - Bjørn Straume
- Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Jon Florholmen
- Research group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Gastroenterology, University Hospital of North Norway, Tromsø, Norway
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Environmental risk factors associated with Helicobacter pylori seroprevalence in the United States: a cross-sectional analysis of NHANES data. Epidemiol Infect 2015; 143:2520-31. [DOI: 10.1017/s0950268814003938] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
SUMMARYHelicobacter pylori imparts a considerable burden to public health. Infections are mainly acquired in childhood and can lead to chronic diseases, including gastric ulcers and cancer. The bacterium subsists in water, but the environment's role in transmission remains poorly understood. The nationally representative National Health and Nutrition Examination Survey (NHANES) was examined for environmental risk factors associated with H. pylori seroprevalence. Data from 1999–2000 were examined and weighted to represent the US population. Multivariable logistic regression estimated adjusted odds ratios (aOR) and 95% confidence intervals (CI) for associations with seropositivity. Self-reported general health condition was inversely associated with seropositivity. Of participants aged <20 years, seropositivity was significantly associated with having a well as the source of home tap water (aOR 1·7, 95% CI 1·1–2·6) and living in a more crowded home (aOR 2·3, 95% CI 1·5–3·7). Of adults aged ⩾20 years, seropositivity was not associated with well water or crowded living conditions, but adults in soil-related occupations had significantly higher odds of seropositivity compared to those in non-soil-related occupations (aOR 1·9, 95% CI 1·2–2·9). Exposures to both well water and occupationally related soil increased the effect size of adults' odds of seropositivity compared to non-exposed adults (aOR 2·7, 95% CI 1·3-5·6). Environmental exposures (well-water usage and occupational contact with soil) play a role in H. pylori transmission. A disproportionate burden of infection is associated with poor health and crowded living conditions, but risks vary by age and race/ethnicity. These findings could help inform interventions to reduce the burden of infections in the United States.
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Shiota S, Cruz M, Abreu JAJ, Mitsui T, Terao H, Disla M, Iwatani S, Nagashima H, Matsuda M, Uchida T, Tronilo L, Rodríguez E, Yamaoka Y. Virulence genes of Helicobacter pylori in the Dominican Republic. J Med Microbiol 2014; 63:1189-1196. [PMID: 24965801 DOI: 10.1099/jmm.0.075275-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Although the incidence of gastric cancer in the Dominican Republic is not high, the disease remains a significant health problem. We first conducted a detailed analysis of Helicobacter pylori status in the Dominican Republic. In total, 158 patients (103 females and 55 males; mean age 47.1±16.2 years) were recruited. The status of H. pylori infection was determined based on four tests: rapid urease test, culture test, histological test and immunohistochemistry. The status of cagA and vacA genotypes in H. pylori was examined using PCR and gene sequencing. The overall prevalence of H. pylori infection was 58.9 %. No relationship was found between the H. pylori infection rate and the age range of 17-91 years. Even in the youngest group (patients aged <29 years), the H. pylori infection rate was 62.5 %. Peptic ulcer was found in 23 patients and gastric cancer was found in one patient. The H. pylori infection rate in patients with peptic ulcer was significantly higher than that in patients with gastritis (82.6 versus 54.5 %, P<0.01). The cagA-positive/vacA s1m1 genotype was the most prevalent (43/64, 67.2 %). Compared with H. pylori-negative patients, H. pylori-positive patients showed more severe gastritis. Furthermore, the presence of cagA was related to the presence of more severe gastritis. All CagA-positive strains had Western-type CagA. In conclusion, we found that H. pylori infection is a risk factor for peptic ulcer in the Dominican Republic. Patients with cagA-positive H. pylori could be at higher risk for severe inflammation and atrophy.
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Affiliation(s)
- Seiji Shiota
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Modesto Cruz
- Department of Biomedical Research, School of Medicine, Santiago Technological University, Santo Domingo, Dominican Republic.,Institute of Microbiology and Parasitology, Department of Science, Autonomous University of Santo Domingo, Santo Domingo, Dominican Republic
| | - José A Jiménez Abreu
- Dominican-Japanese Digestive Disease Center, Dr Luis E. Aybar Health and Hygiene City, Santo Domingo, Dominican Republic
| | - Takahiro Mitsui
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Hideo Terao
- Health Science Center, Oita University, Yufu 870-1192, Japan
| | - Mildre Disla
- Dominican-Japanese Friendship Medical Education Center, Dr Luis E. Aybar Health and Hygiene City, Santo Domingo, Dominican Republic
| | - Shun Iwatani
- Department of Medicine-Gastroenterology, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX 77030, USA.,Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Hiroyuki Nagashima
- Department of Medicine-Gastroenterology, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX 77030, USA.,Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Miyuki Matsuda
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Tomohisa Uchida
- Department of Molecular Pathology, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Lourdes Tronilo
- Dominican-Japanese Digestive Disease Center, Dr Luis E. Aybar Health and Hygiene City, Santo Domingo, Dominican Republic
| | - Eduardo Rodríguez
- Dominican-Japanese Digestive Disease Center, Dr Luis E. Aybar Health and Hygiene City, Santo Domingo, Dominican Republic
| | - Yoshio Yamaoka
- Department of Medicine-Gastroenterology, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX 77030, USA.,Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu 879-5593, Japan
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Laszewicz W, Iwańczak F, Iwańczak B. Seroprevalence of Helicobacter pylori infection in Polish children and adults depending on socioeconomic status and living conditions. Adv Med Sci 2014; 59:147-50. [PMID: 24797992 DOI: 10.1016/j.advms.2014.01.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 01/21/2014] [Indexed: 12/22/2022]
Abstract
PURPOSE Helicobacter pylori (H. pylori) is one of the causes of gastritis, peptic ulcer disease, gastric cancer and MALT-lymphoma. The frequency of H. pylori infection is different in various regions of the world and dependent on age, socioeconomic and hygiene status. The objective of this study was to assess seroprevalence and the associated socioeconomic and sociodemographic characteristics influencing H. pylori infection in children and adults in Polish population. MATERIAL/METHODS In multicenter epidemiological studies, H. pylori infection occurrence was assessed in Poland in the years 2002 and 2003. The seroprevalence of H. pylori infection diagnosis was based on IgG anti-H. pylori antibodies concentration above 24 UI/ml, which was measured using ELISA test. The study included 6565 subjects: 3307 adults (50.37%) and 3258 children (49.63%). RESULTS Positive result was observed in 3827 subjects (58.29%), i.e. 1043 children (32.01%) and 2784 adults (84.19%). H. pylori infection prevalence was greater in children of poor economic status, who were born in a rural area, lived in crowded houses with no running tap water and with toilet outside the house, and who did not observe hygiene rules. In adults, the factors predisposing to higher probability of being H. pylori infected included: being born in a rural area, having low family income and elementary education, smoking tobacco, drinking high proof alcohols as well as not observing of hygiene rules. CONCLUSIONS Improvement of socioeconomic status, sanitary and hygienic conditions and the education of the society might decrease H. pylori infection prevalence in children and in adults.
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Affiliation(s)
- Wiktor Laszewicz
- Department of Gastroenterology and Internal Medicine, District Hospital in Bialystok, Bialystok, Poland
| | - Franciszek Iwańczak
- Department of Pediatrics, Gastroenterology and Nutrition, Medical University of Wroclaw, Wroclaw, Poland
| | - Barbara Iwańczak
- Department of Pediatrics, Gastroenterology and Nutrition, Medical University of Wroclaw, Wroclaw, Poland.
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Goh KL, Chan WK, Shiota S, Yamaoka Y. Epidemiology of Helicobacter pylori infection and public health implications. Helicobacter 2011; 16 Suppl 1:1-9. [PMID: 21896079 PMCID: PMC3719046 DOI: 10.1111/j.1523-5378.2011.00874.x] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review summarizes studies on the epidemiology and public health implications of Helicobacter pylori published in peer-reviewed journals from April 2010 through March 2011. Prevalence rates vary widely between different geographical regions and ethnic groups. An interesting study from the USA identified the degree of African ancestry as an independent predictor of H. pylori infection. Two studies have demonstrated early childhood as the period of transmission of infection and identified an infected sibling as an important risk factor. An oral-oral route of spread has been substantiated with several studies showing the presence of H. pylori in the oral cavity. Studies have shown the presence of H. pylori in drinking water and the role of poor living conditions and sanitation in H. pylori infection, supporting an oral-fecal route of spread. Screening for H. pylori as a gastric cancer pre-screening strategy has been described in Japan, and the importance of H. pylori eradication as a gastric cancer-prevention strategy has now been further emphasized in Japanese guidelines. Two studies have shown a decrease in the burden of dyspepsia and peptic ulcer disease with H. pylori eradication.
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Affiliation(s)
- Khean-Lee Goh
- Department of Medicine-Gastroenterology and Hepatology, University of Malaya, Kuala Lumpur, Malaysia.
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10
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Goh KL, Chan WK, Shiota S, Yamaoka Y. Epidemiology of Helicobacter pylori infection and public health implications. Helicobacter 2011. [PMID: 21896079 DOI: 10.1111/j.1523-5378.2011.00874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes studies on the epidemiology and public health implications of Helicobacter pylori published in peer-reviewed journals from April 2010 through March 2011. Prevalence rates vary widely between different geographical regions and ethnic groups. An interesting study from the USA identified the degree of African ancestry as an independent predictor of H. pylori infection. Two studies have demonstrated early childhood as the period of transmission of infection and identified an infected sibling as an important risk factor. An oral-oral route of spread has been substantiated with several studies showing the presence of H. pylori in the oral cavity. Studies have shown the presence of H. pylori in drinking water and the role of poor living conditions and sanitation in H. pylori infection, supporting an oral-fecal route of spread. Screening for H. pylori as a gastric cancer pre-screening strategy has been described in Japan, and the importance of H. pylori eradication as a gastric cancer-prevention strategy has now been further emphasized in Japanese guidelines. Two studies have shown a decrease in the burden of dyspepsia and peptic ulcer disease with H. pylori eradication.
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Affiliation(s)
- Khean-Lee Goh
- Department of Medicine-Gastroenterology and Hepatology, University of Malaya, Kuala Lumpur, Malaysia.
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Bauer S, Krumbiegel P, Richter M, Richter T, Röder S, Rolle-Kampczyk U, Herbarth O. Influence of sociodemographic factors on Helicobacter pylori prevalence variability among schoolchildren in Leipzig, Germany. A long-term follow-up study. Cent Eur J Public Health 2011; 19:42-5. [PMID: 21526656 DOI: 10.21101/cejph.a3643] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Until the beginning of this decade the assumption was that the Helicobacter pylori prevalence increases with the age of the population under consideration. More and more epidemiological studies have been suggestive of constancy in Helicobacter pylori prevalence, but to date there has been no long-term follow-up study in a large group of children confirming this hypothesis. METHODS Following up our study of H. pylori among school starters and 2nd graders in 1998 and 2000, we conducted a third phase of this study in 2006 using the [13C]-Urea Breath Test and a detailed parent-completed epidemiological questionnaire to evaluate the development of prevalence among the overall population of 8th graders in the city of Leipzig (n = 1,905), and especially of the subgroup of participants who took part in all three study phases (n = 751). RESULTS The overall H. pylori prevalence was 6.5% and had not significantly changed since 1998 and 2000 (6.1%, 5.7% respectively). However, we noticed a significant lower prevalence in the subgroup that participated in all study phases (2.7%). Moreover, we observed a dependence of prevalence on distribution of sociodemographic risk factors such as foreign nationality of at least one parent, birth outside of Germany, low parental education and unemployment, and > or = 2 older siblings. CONCLUSION The variability in prevalence is most likely a result of unequal sociodemographic family backgrounds.
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Affiliation(s)
- Sophie Bauer
- Institute of Environmental Medicine and Hygiene, Faculty of Medicine, University of Leipzig, Leipzig, Germany
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