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Li M, Gao N, Wang SL, Guo YF, Liu Z. Hotspots and trends of risk factors in gastric cancer: A visualization and bibliometric analysis. World J Gastrointest Oncol 2024; 16:2200-2218. [PMID: 38764808 PMCID: PMC11099465 DOI: 10.4251/wjgo.v16.i5.2200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/08/2024] [Accepted: 03/11/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND The lack of specific symptoms of gastric cancer (GC) causes great challenges in its early diagnosis. Thus it is essential to identify the risk factors for early diagnosis and treatment of GC and to improve the survival rates. AIM To assist physicians in identifying changes in the output of publications and research hotspots related to risk factors for GC, constructing a list of key risk factors, and providing a reference for early identification of patients at high risk for GC. METHODS Research articles on risk factors for GC were searched in the Web of Science core collection, and relevant information was extracted after screening. The literature was analyzed using Microsoft Excel 2019, CiteSpace V, and VOSviewer 1.6.18. RESULTS A total of 2514 papers from 72 countries and 2507 research institutions were retrieved. China (n = 1061), National Cancer Center (n = 138), and Shoichiro Tsugane (n = 36) were the most productive country, institution, or author, respectively. The research hotspots in the study of risk factors for GC are summarized in four areas, namely: Helicobacter pylori (H. pylori) infection, single nucleotide polymorphism, bio-diagnostic markers, and GC risk prediction models. CONCLUSION In this study, we found that H. pylori infection is the most significant risk factor for GC; single-nucleotide polymorphism (SNP) is the most dominant genetic factor for GC; bio-diagnostic markers are the most promising diagnostic modality for GC. GC risk prediction models are the latest current research hotspot. We conclude that the most important risk factors for the development of GC are H. pylori infection, SNP, smoking, diet, and alcohol.
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Affiliation(s)
- Meng Li
- Department of Gastroenterology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ning Gao
- Department of Acupuncture and Moxibustion, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Shao-Li Wang
- Department of Gastroenterology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Yu-Feng Guo
- Department of Acupuncture and Moxibustion, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Zhen Liu
- Department of Gastroenterology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
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Tallman PS, Miller AA, Brandley SR, Lee CC, Cepon-Robins TJ, Gildner TE, Collins SM. Helicobacter pylori exposure among the Awajún of the Peruvian Amazon: Prevalence and environmental, social, and biological associations. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024:e24941. [PMID: 38615180 DOI: 10.1002/ajpa.24941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/15/2024] [Accepted: 04/02/2024] [Indexed: 04/15/2024]
Abstract
OBJECTIVES Helicobacter pylori (H. pylori)-a gastric bacteria affecting almost 50% of the global population and leading to ulcers and cancer in severe cases-is a growing health concern among Indigenous populations who report a high burden of reported poor general health and gastrointestinal distress. We test hypothesized associations between H. pylori exposure patterns and environmental, social, and biological conditions among a sample of 212 Indigenous Awajún adults (112 males, 100 females, ages 18-65 years) living in the northern Peruvian Amazon. MATERIALS AND METHODS Dried blood spots were analyzed for H. pylori-specific IgG using a recently developed enzyme-linked immunosorbent assay. Resulting seropositivity rates and antibody concentrations, proxying past exposures to H. pylori were analyzed in relation to relevant environmental (toilet type, floor material, reported water quality), social (household size and education level), and biological (age, sex, BMI, blood pressure, immune and metabolic biomarkers) factors using multivariable regression analyses. RESULTS We found near ubiquitous seropositivity for H. pylori exposure in our sample (99.1% seropositive). In the regression analyses, elevations in H. pylori antibody concentrations were significantly higher among males compared to females (β = 0.36, p = 0.01). No associations were found with any other factors. DISCUSSION Anthropological research in the study communities suggests that the male bias in elevations of H. pylori antibody concentrations is related to cultural and biological factors. Future research is needed to further unravel these biocultural dynamics and determine whether elevations in H. pylori antibody concentrations have clinical relevance for gastrointestinal health outcomes in this population.
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Affiliation(s)
- Paula S Tallman
- Department of Anthropology, Loyola University Chicago, Chicago, Illinois, USA
| | - Aaron A Miller
- Department of Anthropology, Northwestern University, Evanston, Illinois, USA
| | - Sophea R Brandley
- Department of Anthropology, Loyola University Chicago, Chicago, Illinois, USA
| | - Cassie C Lee
- Department of Anthropology, Northwestern University, Evanston, Illinois, USA
| | - Tara J Cepon-Robins
- Department of Anthropology, University of Colorado Colorado Springs, Colorado Springs, Colorado, USA
| | - Theresa E Gildner
- Department of Anthropology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Shalean M Collins
- Department of International Health and Sustainable Development, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA
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3
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Zuzek R, Potter M, Talley NJ, Agréus L, Andreasson A, Veits L, Vieth M, Walker MM. Prevalence of Histological Gastritis in a Community Population and Association with Epigastric Pain. Dig Dis Sci 2024; 69:528-537. [PMID: 38091176 PMCID: PMC10861608 DOI: 10.1007/s10620-023-08170-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 10/26/2023] [Indexed: 02/15/2024]
Abstract
BACKGROUND AND AIMS Gastritis is a common histological diagnosis, although the prevalence is decreasing in developed populations, alongside decreasing prevalence of H. pylori infection. We sought to determine the prevalence of the etiology of gastritis in a Swedish population sample and to analyze any associations with symptoms, an area of clinical uncertainty. METHODS Longitudinal population-based study based in Östhammar, Sweden. A randomly sampled adult population completed a validated gastrointestinal symptom questionnaire (Abdominal Symptom Questionnaire, ASQ) in 2011 (N = 1175). Participants < 80 years of age and who were eligible were invited to undergo esophagogastroduodenoscopy (EGD) (N = 947); 402 accepted and 368 underwent EGD with antral and body biopsies (average 54.1 years, range 20-79 years; 47.8% male) with H. pylori serology. RESULTS Gastritis was found in 40.2% (148/368; 95% CI 35.2-45.2%). By rank, the most common histological subtype was reactive (68/148; 45.9%), then H. pylori (44/148; 29.7%), chronic non-H. pylori (29/148; 19.6%), and autoimmune (4/148; 2.7%). Gastritis was significantly associated with older age and H. pylori status (p < 0.01). Gastritis subjects were divided into three histological categories: chronic inactive inflammation, autoimmune gastritis, and active inflammation; there was no difference in the presence of upper gastrointestinal symptoms when categories were compared to cases with no pathological changes. Functional dyspepsia or gastroesophageal reflux were reported in 25.7% (38/148) of those with gastritis (any type or location) versus 34.1% (75/220) with no pathological changes (p = 0.32). Epigastric pain was more common in chronic H. pylori negative gastritis in the gastric body (OR = 3.22, 95% CI 1.08-9.62). CONCLUSION Gastritis is common in the population with a prevalence of 40% and is usually asymptomatic. Chronic body gastritis may be associated with epigastric pain, but independent validation is required to confirm these findings. Clinicians should not generally ascribe symptoms to histological gastritis.
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Affiliation(s)
- Rachael Zuzek
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- Department of Medicine, Wollongong Hospital, Wollongong, Australia
| | - Michael Potter
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia.
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia.
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia.
- Hunter Medical Research Institute, Lot 1, Kookaburra Cct, New Lambton Heights, NSW, 2305, Australia.
| | - L Agréus
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - A Andreasson
- Department of Psychology, Macquarie University, North Ryde, Australia
- Department of Medicine Solna, Karolinska Institutet, Solna, Sweden
- Department of Psychology, Stress Research Institute, Stockholm University, Stockholm, Sweden
| | - L Veits
- Klinikum Bayreuth, Institute of Pathology, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - M Vieth
- Klinikum Bayreuth, Institute of Pathology, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - M M Walker
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia
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Price TK, Realegeno S, Azad K, Shier KL. Validation of the PyloPlus Urea Breath Test System in pediatric patients. Microbiol Spectr 2024; 12:e0318223. [PMID: 38051054 PMCID: PMC10783039 DOI: 10.1128/spectrum.03182-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023] Open
Abstract
IMPORTANCE For the diagnosis and post-treatment monitoring of H. pylori infection, non-invasive testing methodologies improve patient comfort, particularly for children. Previously, only the BreathTek UBT had FDA approval for use in pediatric patients and required an adjustment calculation based on age, height, and weight of the patient. The purpose of this study was to evaluate the performance of the PyloPlus UBT assay in a pediatric population.
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Affiliation(s)
| | | | - Kamran Azad
- Quest Diagnostics, San Juan Capistrano, California, USA
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Lo HY, Yang YJ. Seroprevalence of Helicobacter pylori infection among schoolchildren in southern Taiwan-A 20-year longitudinal follow-up. Helicobacter 2024; 29:e13049. [PMID: 38558496 DOI: 10.1111/hel.13049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 04/04/2024]
Abstract
BACKGROUND Helicobacter pylori infection is primarily acquired in childhood and can lead to peptic ulcer diseases and gastric cancer. The prevalence of H. pylori infection varies widely in different countries. The aim of this study was to explore the change of pediatric H. pylori seroprevalence in the past two decades and to investigate the risk factors for pediatric H. pylori seropositivity in southern Taiwan. MATERIALS AND METHODS This study enrolled children aged 7-12 years in Tainan City in 2018 and compared the result with our previous data in 1998, 2005, and 2010. Parents of the participants were invited to fill out questionnaires, including information of personal history, family history of peptic ulcer diseases, annual household income, and source of drinking water. Blood samples were analyzed for anti-H. pylori IgG by enzyme-linked immunosorbent assay. RESULTS A total of 391, 629, 618, and 488 elementary school students in Tainan City were enrolled in 1998, 2005, 2010, and 2018, respectively. There was a significant decline in H. pylori seroprevalence from 9.2% in 1998, 7.8% in 2005, 6.2% in 2010 to 4.7% in 2018 (p < 0.001). Neither gender difference nor age difference was found in H. pylori seropositivity in each year of enrollment. Low household income was significantly associated with pediatric H. pylori seropositivity. CONCLUSIONS The seroprevalence of H. pylori infection among elementary schoolchildren has remarkably declined in southern Taiwan in the past two decades. Low household income was a risk factor for pediatric H. pylori seropositivity.
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Affiliation(s)
- Hsiao-Yu Lo
- Department of Pediatrics and Institutes of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yao-Jong Yang
- Department of Pediatrics and Institutes of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Shayan NA, Rahimi A, Özcebe H. Cancer prevalence, incidence, and mortality rates in Afghanistan in 2020: A review study. Cancer Rep (Hoboken) 2023; 6:e1873. [PMID: 37574721 PMCID: PMC10480416 DOI: 10.1002/cnr2.1873] [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: 04/26/2023] [Revised: 06/17/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND Afghanistan is in an epidemiological transition, as cancer is the second leading cause of mortality due to non-communicable diseases. This study is the first to provide a comprehensive perspective on the overall cancer situation in Afghanistan by discussing the top five most common cancers, their incidence variations, risk factors, and preventive measures. The limited number of cancer studies conducted in Afghanistan highlights the importance of the present review. RECENT FINDINGS This article provides an overview of cancer burden in Afghanistan in 2020. It utilizes IARC-generated GLOBOCAN 2020 data for one, three, and five-year prevalence rates, the estimated number of new cancer cases, and mortality rates by age group in Afghanistan. According to GLOBOCAN, the top five common cancers in both sexes in Afghanistan were breast (n = 3173, 14.3%), stomach (n = 2913, 7.8%), lung (n = 1470, 6.6%), cervix uteri (n = 1200, 5.4%), and colorectum (n = 1084, 4.9%). CONCLUSION This study provides a brief overview of the general cancer situation in Afghanistan, and a more in-depth analysis of the five common cancers identified. Effective therapies, awareness, and prevention initiatives targeting lifestyle, immunization, early diagnosis, and environmental risk factors are essential for addressing the impact of population growth and aging on cancer incidence in Afghanistan. Further research and extensive studies are needed to better understand cancer burden in the country.
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Affiliation(s)
- Nasar Ahmad Shayan
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and DentistryWestern UniversityLondonOntarioCanada
| | - Ali Rahimi
- Scientific Research CenterJami UniversityHeratAfghanistan
| | - Hilal Özcebe
- Department of Public Health, Faculty of MedicineHacettepe UniversityAnkaraTurkey
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Almorish MA, Al-Absi B, Elkhalifa AME, Elamin E, Elderdery AY, Alhamidi AH. ABO, Lewis blood group systems and secretory status with H.pylori infection in yemeni dyspeptic patients: a cross- sectional study. BMC Infect Dis 2023; 23:520. [PMID: 37553651 PMCID: PMC10408178 DOI: 10.1186/s12879-023-08496-2] [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: 07/01/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND The ABO and Lewis blood group antigens are potential factors in susceptibility to H. pylori infection. This research aimed to examine the prevalence of Helicobater pylori (H.pylori) infection and its association with ABO, Lewis blood group systems, and secretory status in Yemeni symptomatic patients. METHODS In a cross-sectional study, 103 patients referred for endoscopy due to dyspepsia were included. H pylori infection was assessed using stool antigen and serum antibody rapid tests. ABO and Lewis blood group systems were examined using hemagglutination assay. Saliva samples were investigated for identification of the secretory phenotype using hemagglutination inhibition test. RESULTS The prevalence of H. pylori infection was (80.6%), with a higher rate of infection in females than males. The ABO blood groups were found to be significantly different between males and females (p = 0.047). The O blood group was prevalent among H. pylori patients, especially secretors. There was a significant association between ABO blood groups and H. pylori infection (p = 0.001). The Le (a + b+) phenotype was the most common, followed by Le (a + b-), Le (a-b+), and Le (a-b-). Lewis blood group systems and secretory status of symptomatic patients were not associated with H. pylori infection. The results showed that serum Ab test for H. pylori achieved poor sensitivity (68%), specificity of 55%; positive predictive value (PPV) 86%, negative predictive value (NPV) 29% and accuracy 65.1%. CONCLUSION The prevalence of H. pylori infection was high in Yemeni patients. This infection was linked to the O and Le (a + b+) secretor phenotype. The H. pylori stool Ag test is the most reliable noninvasive diagnostic method for detecting H. pylori infection.
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Affiliation(s)
| | - Boshra Al-Absi
- Department of Hematology, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
| | - Ahmed M E Elkhalifa
- Public Heath Department, College of Health Sciences, Saudi Electronic University, Riyadh, Saudi Arabia
- Department of Hematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosti, 1158, Sudan
| | - Elham Elamin
- Department of Hematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosti, 1158, Sudan
| | - Abozer Y Elderdery
- Department of Clinical Laboratory Sciences, College of Applied Medical Science, Jouf University, Sakaka, Saudi Arabia
| | - Abdulaziz H Alhamidi
- Clinical Laboratory Sciences Department, College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia
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Roth L, Michl P, Rosendahl J. [Sex-specific differences in gastroenterological diseases]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2023; 64:736-743. [PMID: 36884055 DOI: 10.1007/s00108-023-01491-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 03/09/2023]
Abstract
Diseases of the gastrointestinal tract present with substantial sex differences that have a potential impact on patient outcome. This fact is not sufficiently addressed either in basic research or in clinical studies. For example, most animal studies utilize male animals. Despite differences in incidence, sex may affect complication rates, prognosis, or therapeutic response. The incidence of gastrointestinal cancers is frequently higher in males, but this observation cannot solely rely on a distinct risk behaviour. Here, differences in immune response and p53 signalling may be factors responsible for this finding. Nevertheless, taking sex differences into account and improving our understanding of relevant mechanisms is crucial and will most likely have a substantial impact on disease outcome. This overview aims to highlight sex differences in the context of various gastroenterological diseases, primarily to enhance awareness. Attention to sex-specific differences is essential to improve individualized treatment.
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Affiliation(s)
- Laura Roth
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA, USA.
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA.
| | - Patrick Michl
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland
- Klinik für Innere Medizin IV, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Jonas Rosendahl
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
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Soares GAS, Moraes FADS, Ramos AFPL, Santiago SB, Germano JN, Fernandes GA, Curado MP, Barbosa MS. Dietary habits and Helicobacter pylori infection: is there an association? Therap Adv Gastroenterol 2023; 16:17562848231160620. [PMID: 37324320 PMCID: PMC10262674 DOI: 10.1177/17562848231160620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 02/13/2023] [Indexed: 06/17/2023] Open
Abstract
Background Helicobacter pylori (H. pylori) is a group 1 carcinogen and the etiological agent of gastric diseases such as gastritis, ulcers, and gastric cancer. It infects approximately half of the world's population. Risk factors associated with H. pylori infection include socioeconomic status, lifestyle, and diet. Objectives This study aimed to evaluate the association between eating habits and H. pylori infection in patients from a reference hospital in Central Brazil. Design This cross-sectional study included 156 patients from 2019 to 2022. Methods Data were collected using a structured questionnaire on sociodemographic and lifestyle characteristics and a validated food frequency questionnaire. The H. pylori infection status (positive versus negative) was determined using the histopathological method. After grams/day, foods were stratified into tertiles of consumption (low, medium, and high). Simple and multiple binary logistic regression models were used in the analysis of odds ratios (ORs) and their respective 95% confidence intervals (CIs), with a 5% significance level. Results The prevalence of H. pylori infection was 44.2% (69/156 patients). Infected individuals had a mean age of 49.6 ± 14.6 years; 40.6% were men, 34.8% were aged 60 years or older, 42.0% were unmarried, 7.2% had higher education, 72.5% were non-white, and 30.4% were obese. In the H. pylori-positive group, 55.1% were alcohol drinkers and 42.0% were smokers. The results of multiple analyses showed that the chance of H. pylori infection was higher among male participants (OR = 2.25; CI = 1.09-4.68) and individuals with obesity (OR = 2.68; CI = 1.10-6.51). Participants with moderate consumption of refined grains (bread, cookies, cakes, breakfast cereal) (OR = 2.41; CI = 1.04-5.62) and fruits (OR = 2.53; CI = 1.08-5.94) were more likely to be infected. Conclusion In this study, male sex, obesity, and the consumption of refined grains and fruits were positively associated with H. pylori infection. Further research is needed to investigate this association and elucidate the underlying mechanisms.
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Affiliation(s)
- Giovana Alice Sampaio Soares
- Núcleo de Estudo da Helicobacter pylori, Department of Biosciences and Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | - Felipe Augusto de Sousa Moraes
- Núcleo de Estudo da Helicobacter pylori, Department of Biosciences and Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | - Amanda Ferreira Paes Landim Ramos
- Núcleo de Estudo da Helicobacter pylori, Department of Biosciences and Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | - Silvana Barbosa Santiago
- Núcleo de Estudo da Helicobacter pylori, Department of Biosciences and Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | | | | | | | - Mônica Santiago Barbosa
- Núcleo de Estudo da Helicobacter pylori, Department of Biosciences and Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, St. 235 Setor Leste Universitario, Goiânia, GO 74605-050, Brazil
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Allwright M, Karrasch JF, O'Brien JA, Guennewig B, Austin PJ. MACHINE LEARNING ANALYSIS OF THE UK BIOBANK REVEALS PROGNOSTIC AND DIAGNOSTIC IMMUNE BIOMARKERS FOR POLYNEUROPATHY AND NEUROPATHIC PAIN IN DIABETES. Diabetes Res Clin Pract 2023; 201:110725. [PMID: 37211253 DOI: 10.1016/j.diabres.2023.110725] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/05/2023] [Accepted: 05/16/2023] [Indexed: 05/23/2023]
Abstract
AIMS We assessed the health data of 11,047 people with diabetes in the UK Biobank to rank 329 risk factors for diabetic polyneuropathy (DPN) and DPN with chronic neuropathic pain without a priori assumption. METHODS The Integrated Disease Explanation and Risk Scoring (IDEARS) platform applies machine learning algorithms to multimodal data to determine individual disease risk, and rank risk factor importance using mean SHapley Additive exPlanations (SHAP) score. RESULTS IDEARS models showed discriminative performances with AUC > 0.64. Lower socioeconomic status, being overweight, poor overall health, cystatin C, HbA1C, and immune activation marker, C-reactive protein (CRP), predict DPN risk. Neutrophils and monocytes were higher in males and lymphocytes lower in females with diabetes that develop DPN. Neutrophil-to-Lymphocyte Ratio (NLR) was increased and IGF-1 levels decreased in people with type 2 diabetes that later develop DPN. CRP was significantly elevated in those with DPN and chronic neuropathic pain compared to DPN without pain. CONCLUSIONS Lifestyle factors and blood biomarkers predict the later development of DPN and may relate to DPN pathomechanisms. Our results are consistent with DPN as a disease involving systemic inflammation. We advocate for the use of these biomarkers clinically to predict future DPN risk and improve early diagnosis.
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Affiliation(s)
- Michael Allwright
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, 2050, Australia
| | - Jackson F Karrasch
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, 2050, Australia
| | - Jayden A O'Brien
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, 2050, Australia
| | - Boris Guennewig
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, 2050, Australia
| | - Paul J Austin
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, 2050, Australia.
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11
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Yang WJ, Zhao HP, Yu Y, Wang JH, Guo L, Liu JY, Pu J, Lv J. Updates on global epidemiology, risk and prognostic factors of gastric cancer. World J Gastroenterol 2023; 29:2452-2468. [PMID: 37179585 PMCID: PMC10167900 DOI: 10.3748/wjg.v29.i16.2452] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/19/2023] [Accepted: 04/07/2023] [Indexed: 04/24/2023] Open
Abstract
Gastric cancer (GC) is defined as the primary epithelial malignancy derived from the stomach, and it is a complicated and heterogeneous disease with multiple risk factors. Despite its overall declining trend of incidence and mortality in various countries over the past few decades, GC remains the fifth most common malignancy and the fourth leading cause of cancer-related death globally. Although the global burden of GC has shown a significant downward trend, it remains severe in certain areas, such as Asia. GC ranks third in incidence and mortality among all cancer types in China, and it accounts for nearly 44.0% and 48.6% of new GC cases and GC-related deaths in the world, respectively. The regional differences in GC incidence and mortality are obvious, and annual new cases and deaths are increasing rapidly in some developing regions. Therefore, early preventive and screening strategies for GC are urgently needed. The clinical efficacies of conventional treatments for GC are limited, and the developing understanding of GC pathogenesis has increased the demand for new therapeutic regimens, including immune checkpoint inhibitors, cell immunotherapy and cancer vaccines. The present review describes the epidemiology of GC worldwide, especially in China, summarizes its risk and prognostic factors, and focuses on novel immunotherapies to develop therapeutic strategies for the management of GC patients.
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Affiliation(s)
- Wen-Juan Yang
- Department of Clinical Laboratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
| | - He-Ping Zhao
- Department of Clinical Laboratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
| | - Yan Yu
- Department of Clinical Laboratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
| | - Ji-Han Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province, China
| | - Lei Guo
- Department of Spinal Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
| | - Jun-Ye Liu
- Department of Clinical Laboratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
| | - Jie Pu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi'an 710068, Shaanxi Province, China
| | - Jing Lv
- Department of Clinical Laboratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi Province, China
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Duquesne A, Falcón R, Galindo B, Feliciano O, Gutiérrez O, Baldoquín W, Fonseca MC, Llanes R, Sarmiento L. Diagnostic Testing Accuracy for Helicobacter pylori Infection among Adult Patients with Dyspepsia in Cuba's Primary Care Setting. Microorganisms 2023; 11:997. [PMID: 37110419 PMCID: PMC10146794 DOI: 10.3390/microorganisms11040997] [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: 02/17/2023] [Revised: 03/31/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Evidence of the effectiveness of the tests used to diagnose Helicobacter pylori (H. pylori) in primary healthcare is limited. This cross-sectional study aims to assess the accuracy of tests used for to diagnose H. pylori infection in primary care patients and its relationship with gastroduodenal pathologies. Over 12 months, 173 primary care patients with dyspeptic symptoms were referred for upper gastrointestinal endoscopy to obtain gastric biopsies, and venous blood was extracted from them. H. pylori infection was detected using a rapid urease test (RUT), real-time polymerase chain reaction (RT-PCR), H. pylori-IgG ELISA, and Western blot (WB). The culture and histological findings were used as the reference standard for H. pylori infection. H. pylori prevalence was 50%. There were no significant differences between men and women overall or by age group. The presence of H. pylori was associated with chronic moderate gastritis and its absence with chronic inactive gastritis, as well as the combination of gastritis and gastric lesions (p < 0.05). RUT and ELISA H. pylori -IgG tests showed the highest overall performance (accuracy 98.9% and 84.4%), followed by WB and RT-PCR (accuracy 79.3% and 73.9%). These findings support the notion that combined invasive and noninvasive methods, such as RUT and H. pylori-IgG ELISA, can be a primary diagnostic screening tool for detecting H. pylori among adult dyspeptic patients in Cuba's primary care setting.
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Affiliation(s)
- Amílcar Duquesne
- Teaching Orthopedical Hospital Fructuoso Rodríguez, Havana City 10400, Cuba
| | - Rosabel Falcón
- Department of Microbiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Belkys Galindo
- Department of Epidemiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Onelkis Feliciano
- Department of Microbiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Oderay Gutiérrez
- Department of Microbiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Waldemar Baldoquín
- Department of Epidemiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Magile C. Fonseca
- Department of Virology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Rafael Llanes
- Department of Microbiology, Center for Research, Diagnosis and Reference, “Pedro Kourí” Institute of Tropical Medicine, Havana City 11400, Cuba
| | - Luis Sarmiento
- Department of Clinical Sciences, Immunovirology Unit, Skåne University Hospital, Lund University, 21428 Malmö, Sweden
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13
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Dos Santos DC, de Souza Bittencout R, Arêas ID, Pena LSC, Almeida CF, de Brito Guimarães BC, Dórea RSDM, Correia TML, Júnior MNS, Morbeck LLB, Dos Santos TC, Souza CLS, de Souza SI, de Jesus Soares T, Yatsuda R, Campos GB, Marques LM. Effects of 5α-dihydrotestosterone on the modulation of monocyte/macrophage response to Staphylococcus aureus: an in vitro study. Biol Sex Differ 2023; 14:15. [PMID: 37004108 PMCID: PMC10065996 DOI: 10.1186/s13293-023-00501-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Staphylococcus aureus (S. aureus) is a pathogen responsible for a wide range of clinical manifestations and potentially fatal conditions. There is a paucity of information on the influence of androgens in the immune response to S. aureus infection. In this study, we evaluated the influence of the hormone 5α-dihydrotestosterone (DHT) on mouse peritoneal macrophages (MPMs) and human peripheral blood monocytes (HPBMs) induced by S. aureus. METHODS An in vitro model of MPMs from BALB/c sham males, orchiectomised (OQX) males, and females was used. Cells were inoculated with 10 μL of S. aureus, phage-type 80 or sterile saline (control) for 6 h. The MPMs of OQX males and females were pre-treated with 100 μL of 10-2 M DHT for 24 h before inoculation with S. aureus. The concentration of the cytokines TNF-α, IL-1α, IL-6, IL-8, and IL-10; total nitrites (NO-2); and hydrogen peroxide (H2O2) were measured in the supernatant of MPM cultures. In addition, the toll-like receptor 2 (TLR2) and nuclear factor kappa B (NF-kB) genes that are involved in immune responses were analysed. For the in vitro model of HPBMs, nine men and nine women of childbearing age were selected and HPBMs were isolated from samples of the volunteers' peripheral blood. In women, blood was collected during the periovulatory period. The HPBMs were inoculated with S. aureus for 6 h and the supernatant was collected for the analysis of cytokines TNF-α, IL-6, IL-12; and GM-CSF, NO-2, and H2O2. The HPBMs were then removed for the analysis of 84 genes involved in the host's response to bacterial infections by RT-PCR array. GraphPad was used for statistical analysis with a p value < 0.05. RESULTS Our data demonstrated that MPMs from sham males inoculated with S. aureus displayed higher concentrations of inflammatory cytokines and lower concentrations of IL-10, NO-2, and H2O2 when compared with MPMs from OQX males and females. A similar result was observed in the HPBMs of men when compared with those of women. Previous treatment with DHT in women HPBMs increased the production of pro-inflammatory cytokines and decreased the levels of IL-10, NO-2, and H2O2. The analysis of gene expression showed that DHT increased the activity of the TLR2 and NF-kB pathways in both MPMs and HPBMs. CONCLUSIONS We found that DHT acts as an inflammatory modulator in the monocyte/macrophage response induced by S. aureus and females exhibit a better immune defence response against this pathogen.
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Affiliation(s)
- Déborah Cruz Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Rafaela de Souza Bittencout
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Iago Dórea Arêas
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Larissa Silva C Pena
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Carolline Florentino Almeida
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Bruna Carolina de Brito Guimarães
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Rafael Santos Dantas Miranda Dórea
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Thiago Macêdo Lopes Correia
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | | | - Lorena Lôbo Brito Morbeck
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Talita Costa Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Clarissa Leal S Souza
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | | | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Regiane Yatsuda
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Guilherme Barreto Campos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
- University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil
| | - Lucas Miranda Marques
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil.
- University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil.
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil.
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Is Helicobacter pylori Infection Prevalent in Middle East Countries? ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2023. [DOI: 10.5812/archcid-123364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Background: Helicobacter pylori is a pathogenic bacteria found in the gastric mucosa of both children and adults. Our goal was to use an endoscopic method to look at the prevalence of H. pylori in children with gastrointestinal complaints. Methods: This cross-sectional research was conducted in 2022 on pediatric patients who received gastric or duodenal biopsies by endoscopy. We collected data from medical reports regarding patients' age, gender, location of residence, type of gastrointestinal problems, and frequency of H. pylori infection. Results: A total of 2030 pediatric patients participated in the study. Helicobacter pylori infection was found in 259 cases (12.76%). There were no significant differences between the two genders regarding the prevalence of H. pylori infection (P = 0.094). This infection was more common in patients aged > 10 years (P < 0.001) and in residents of the Isfahan suburb (P < 0.001). Conclusions: In comparison to other locations, we found a similar incidence rate of H. pylori infection in children. According to our findings, greater ages are associated with a higher detection rate of H. pylori infection.
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Epidemiological Characteristics of Helicobacter pylori Infection in Children in Northeast Romania. Diagnostics (Basel) 2023; 13:diagnostics13030408. [PMID: 36766513 PMCID: PMC9914034 DOI: 10.3390/diagnostics13030408] [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: 12/21/2022] [Revised: 01/13/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
(1) Background: Although gastritis has been associated with multiple etiologies, in pediatrics the main etiology is idiopathic. Many studies have reported mild-to-severe gastritis Helicobacter pylori (H. pylori) as an etiological factor. We evaluated the distribution of the infection with H. pylori by age, gender and place of living; (2) Methods: A retrospective study was conducted over a period of 3 years, over a cohort of 1757 patients of both sexes, aged between 1 and 18 years, admitted to a regional gastroenterology center in Iasi, Romania, with clinical signs of gastritis which underwent upper gastrointestinal endoscopy. The research was based on the analysis of data from patient observation charts and hospital discharge tickets, as well as endoscopy result registers; (3) Results: Out of the 1757 children, in 30.8% of cases the H. pylori infection was present. Out of them, 26.8% were males and 73.2% females. The average age of children with an H. pylori infection was higher (14.1 + 2.8 DS), compared with children without H. pylori (12.8 + 3.7 SD), an average difference of 1.3 years (95% confidence interval 0.96 to 1.66; p < 0.001). By place of living, children with H. pylori infection were from urban areas at 24.7% and from rural areas at 75.3%; (4) Conclusions: H. pylori infection incidence is still high in children, especially in teenagers, so extensive prevention and treatment programs are needed.
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Abstract
There is a growing awareness of the importance of sex and gender in medicine and research. Women typically have stronger immune responses to self and foreign antigens than men, resulting in sex-based differences in autoimmunity and infectious diseases. In both animals and humans, males are generally more susceptible than females to bacterial infections. At the same time, gender differences in health-seeking behavior, quality of health care, and adherence to treatment recommendations have been reported. This review explores our current understanding of differences between males and females in bacterial diseases. We describe how genetic, immunological, hormonal, and anatomical factors interact to influence sex-based differences in pathophysiology, epidemiology, clinical presentation, disease severity, and prognosis, and how gender roles affect the behavior of patients and providers in the health care system.
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Borka Balas R, Meliț LE, Mărginean CO. Worldwide Prevalence and Risk Factors of Helicobacter pylori Infection in Children. CHILDREN 2022; 9:children9091359. [PMID: 36138669 PMCID: PMC9498111 DOI: 10.3390/children9091359] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/22/2022] [Accepted: 09/03/2022] [Indexed: 01/17/2023]
Abstract
Helicobacter pylori is usually acquired during childhood. The reports from the last two decades pointed out a decrease in H. pylori prevalence across geographical areas worldwide compared to previously reported data. Most of the studies performed in America found an overall H. pylori infection prevalence of approximately 50%. The most important risk factors in America include being male, poor adherence or difficult access to treatment, and the lack of in-home water service. Despite the descending trend in prevalence worldwide, the overall prevalence in Africa remains very high (70%). Nevertheless, the prevalence of H. pylori in children without gastrointestinal who underwent screening was reported to be only 14.2%. The main risk factors in Africa are having a traditional pit or no toilet, poverty, birth order, source of drinking water, or being a farmer. Asia seems to have the widest variations in terms of H. pylori prevalence. Several risk factors were reported in Asia to be associated with this infection, such as lower income and educational level, house crowding, rural residence, ethnicity, the use of tanks as water supplies, alcohol drinking, active smoking, eating spicy food or raw uncooked vegetables, poor living conditions and sanitation. The overall prevalence of H. pylori infection in European children is almost 25%. Portugal has the highest prevalence of all European countries at 66.2% in children 13 years of age. The risk factors in European individuals consist of living in rural areas, eating unwashed fruits and vegetables, not washing hands after school, low parental education and unemployment, and short education duration. Further studies are required to identify the precise mechanisms involved in the discrepancies of H. pylori prevalence worldwide.
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A prospective cohort study on the association between waterpipe tobacco smoking and gastric cancer mortality in Northern Vietnam. BMC Cancer 2022; 22:803. [PMID: 35864477 PMCID: PMC9306202 DOI: 10.1186/s12885-022-09894-6] [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: 02/08/2022] [Accepted: 07/08/2022] [Indexed: 11/28/2022] Open
Abstract
Tobacco consumption, as a worldwide problem, is a risk factor for several types of cancer. In Vietnam, tobacco consumption in the form of waterpipe tobacco smoking is common. This prospective cohort study aimed to study the association between waterpipe tobacco smoking and gastric cancer mortality in Northern Vietnam. A total of 25,619 eligible participants were followed up between 2008 and 2019. Waterpipe tobacco and cigarette smoking data were collected; semi-quantitative food frequency and lifestyle questionnaires were also utilized. Gastric cancer mortality was determined via medical records available at the state health facilities. A Cox proportional hazards model was used to estimate hazard ratios (HR) and 95% confidence intervals (95% CI). During 314,992.8 person-years of follow-up, 55 men and 25 women deaths due to gastric cancer were identified. With never-smokers as the reference, the risk of gastric cancer mortality was significantly increased in participants who were ever-smoking (HR = 2.43, 95% CI = 1.35–4.36). The positive risk was also observed in men but was not significantly increased in women. By types of tobacco use, exclusive waterpipe smokers showed a significantly increased risk of gastric cancer mortality (HR = 3.22, 95% CI = 1.67–6.21) but that was not significantly increased in exclusive cigarette smokers (HR = 1.90, 95% CI = 0.88–4.07). There was a significant positive association between tobacco smoking and gastric cancer death for indicators of longer smoking duration, higher frequency per day, and cumulative frequency of both waterpipe and cigarette smoking. Waterpipe tobacco smoking would significantly increase the risk of gastric cancer mortality in the Vietnamese population. Further studies are required to understand the waterpipe tobacco smoking-driven gastric cancer burden and promote necessary interventions.
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Li Y, Zhong YX, Xu Q, Tian YT. Protective effects of female reproductive factors on gastric signet-ring cell carcinoma. World J Clin Cases 2022; 10:5217-5229. [PMID: 35812665 PMCID: PMC9210896 DOI: 10.12998/wjcc.v10.i16.5217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/21/2021] [Accepted: 04/09/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The overall incidence of gastric cancer is higher in men than women worldwide. However, gastric signet-ring cell carcinoma (GSRC) is more frequently observed in younger female patients.
AIM To analyze clinicopathological differences between sexes in GSRC, because of the limited evidence regarding association between sex-specific differences and survival.
METHODS We reviewed medical records for 1431 patients who received treatment for GSRC at the Cancer Hospital, Chinese Academy of Medical Sciences between January 2011 and December 2018 and surveyed reproductive factors. Clinicopathological characteristics were compared between female and male patients. Cox multivariable model was used to compare the mortality risks of GSRC among men, menstrual women, and menopausal women.
RESULTS Of 1431 patients, 935 patients were male and 496 were female (181 menstrual and 315 menopausal). The 5-year overall survival in male, menstrual female and menopausal female groups was 65.6%, 76.5% and 65%, respectively (P < 0.01). Menstruation was found to be a protective factor (hazard ratio = 0.58, 95% confidence interval: 0.42–0.82).
CONCLUSION The mortality risk of GSRC in menstrual women was lower than that in men. This study identified the protective effects of female reproductive factors in GSRC.
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Affiliation(s)
- Yang Li
- Department of Pancreatic and Gastric Surgery, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yu-Xin Zhong
- Department of Pancreatic and Gastric Surgery, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Quan Xu
- Department of Pancreatic and Gastric Surgery, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yan-Tao Tian
- Department of Pancreatic and Gastric Surgery, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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20
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Wang SE, Dashti SG, Hodge AM, Dixon-Suen SC, Castaño-Rodríguez N, Thomas RJ, Giles GG, Milne RL, Boussioutas A, Kendall BJ, English DR. Mechanisms for the sex-specific effect of H. pylori on risk of gastroesophageal reflux disease and Barrett's oesophagus. Cancer Epidemiol Biomarkers Prev 2022; 31:1630-1637. [PMID: 35654416 DOI: 10.1158/1055-9965.epi-22-0234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/22/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Mechanisms for how Helicobacter pylori infection affects risk of gastroesophageal reflux disease (GERD) and Barrett's oesophagus (BE) are incompletely understood and might differ by sex. METHODS In a case-control study nested in the Melbourne Collaborative Cohort Study with 425 GERD cases and 169 BE cases (identified at 2007-10 follow-up), we estimated sex-specific odds ratios for participants who were H. pylori seronegative versus seropositive at baseline (1990-94). To explore possible mechanisms, we 1) compared patterns of H. pylori-induced gastritis by sex using serum pepsinogen-I and gastrin-17 data and 2) quantified the effect of H. pylori seronegativity on BE mediated by GERD using causal mediation analysis. RESULTS For men, H. pylori seronegativity was associated with 1.69-fold (CI:1.03-2.75) and 2.28-fold (CI:1.27-4.12) higher odds of GERD and BE, respectively. No association was observed for women. H. pylori-induced atrophic antral gastritis was more common in men (68%) than in women (56%; p=0.015). For men, 5 of the 15 per 1,000 excess BE risk from being seronegative was mediated by GERD. CONCLUSIONS Men, but not women, who were H. pylori seronegative had increased risks of GERD and BE. A possible explanation might be sex-differences in patterns of H. pylori-induced atrophic antral gastritis, which could lead to less erosive reflux for men. Evidence of GERD mediating the effect of H. pylori on BE risk among men supports this proposed mechanism. IMPACT The findings highlight the importance of investigating sex differences in the effect of H. pylori on risk of GERD and BE in future studies.
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Affiliation(s)
| | | | | | | | | | | | | | - Roger L Milne
- Cancer Council Victoria, Melbourne, Victoria, Australia
| | | | | | - Dallas R English
- Melbourne School of Population and Global Health, Melbourne, Australia
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21
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Shah D, Bentrem D. Environmental and genetic risk factors for gastric cancer. J Surg Oncol 2022; 125:1096-1103. [PMID: 35481919 PMCID: PMC9322002 DOI: 10.1002/jso.26869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/10/2022] [Accepted: 03/12/2022] [Indexed: 12/11/2022]
Abstract
Gastric cancer is a heterogeneous and prevalent disease. The traditional environmental exposures associated with an elevated risk of gastric cancer are less prevalent in the United States today. Genetic risks and risks associated with inflammation remain. Most cases are sporadic and familial clustering is observed in about 10% of the cases. Hereditary gastric cancer accounts for a very low percentage of cases. Here we review the genetic and environmental risk factors associated with the disease.
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Affiliation(s)
- Dhavan Shah
- Department of Surgery, Surgical Outcome and Quality Improvement Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - David Bentrem
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Jesse Brown VA Medical Center, Chicago, Illinois, USA
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22
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Ismail MB, Osman M, Bou Raad E, Achkar M, Hamze M. Seroprevalence of Helicobacter pylori among dyspeptic patients in northern Lebanon: a 6-year retrospective study in two tertiary hospitals. Access Microbiol 2022; 4:000337. [PMID: 35812710 PMCID: PMC9260095 DOI: 10.1099/acmi.0.000337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 02/06/2022] [Indexed: 11/25/2022] Open
Abstract
Helicobacter pylori causes chronic gastritis and plays a significant role in duodenal/gastric ulcer disease and gastric cancer. Its prevalence varies among different populations and geographical areas. Here, in a hospital-based retrospective study, we investigated the seroprevalence of H. pylori infection in northern Lebanon. We examined the records of 4000 consecutive dyspeptic patients attending 2 tertiary care centres in the North (Tripoli) and Akkar (Halba) governorates. Seropositivity for H. pylori was determined using enzyme immunoassays investigating specific anti-H. pylori IgG antibodies. The association of infection with the available patients’ demographic characteristics was also evaluated. The mean age of our study population was 36.9±16.6 years. With 2486 female and 1514 male subjects, the overall female/male ratio was 1.64. In total, H. pylori seropositivity was detected in 1367/4000 (34.2 %) tested individuals. The multivariate logistic regression analysis showed that H. pylori infection is less prevalent in female than in male examined patients [adjusted odds ratio (OR): 0.84; 95 % confidence interval (CI): 0.73–0.96; P<0.013]. Seroprevalence gradually increased with age – from 14.6 % in patients below 18 years to 42.9 % in those above 49 years – and was significantly higher among Akkar patients compared to those from the North governorate: 49.6 versus 28.7 %, respectively (P<0.001). Overall, a third of symptomatic patients in northern Lebanon are infected with H. pylori. However, the prevalence of infection was markedly different in close geographical zones in this region. Additional screening studies using different screening methods are needed in the future to determine the accurate prevalence of this bacterium and its clinical implications to establish efficient national intervention strategies.
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Affiliation(s)
- Mohamad Bachar Ismail
- Laboratoire Microbiologie, Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli,, Lebanon
- Faculty of Sciences, Lebanese University, Tripoli, Lebanon
| | - Marwan Osman
- Laboratoire Microbiologie, Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli,, Lebanon
- Department of Public and Ecosystem Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14850, USA
- Clinical Laboratory, El Youssef Hospital Center, Halba, Lebanon
- *Correspondence: Marwan Osman,
| | - Elie Bou Raad
- Clinical Laboratory, El Youssef Hospital Center, Halba, Lebanon
| | - Marcel Achkar
- Clinical Laboratory, Nini Hospital, Tripoli, Lebanon
| | - Monzer Hamze
- Laboratoire Microbiologie, Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli,, Lebanon
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Rathod V, A. A, Ramesh NK, Shaikh MK. Heterotopic Gastric Mucosa in the Proximal Esophagus (Inlet Patch): Endoscopic Prevalence, Clinico-pathological Characteristics and Its Association with Helicobacter pylori. JOURNAL OF DIGESTIVE ENDOSCOPY 2022. [DOI: 10.1055/s-0042-1743182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Abstract
Objective To determine the prevalence of the inlet patch (IP), its clinico-pathological features, and its association with Helicobacter pylori.
Materials and Methods A prospective observational study was performed on 1,889 patients referred for esophagogastroduodenoscopy for various reasons, primarily for the evaluation of dyspepsia. All patients were enquired about the presence of symptoms and carefully examined for the presence of IP during upper gastrointestinal (GI) endoscopy. Biopsies were taken from the patients who had IP.
Statistical Analysis All statistical analyses were performed using the Statistical Package for Social Sciences (SPSS) 13.0 software for Windows XP. Categorical variables were compared using the chi-squared test or Fisher's exact test and continuous variables were compared using Student's t-test and univariate analysis. A P-value of less than 0.05 was considered to be statistically significant.
Results Inlet patches were found in 34 of 1,889 patients (1.8%). H. pylori was identified in 23.52% of patients (8/34) with IP. Gastric H. pylori infection was positive in all (08/08) patients who had IP. Colonization of H. pylori was more common in antral type mucosa (6/8). H. pylori positivity in the IP correlated with globus sensation symptom in our study, 87.5% of patients with IP and H. pylori positive had globus sensation.
Conclusion The prevalence of IP seems to be underestimated. H. pylori colonization of the IP is common and it positively correlates with globus sensation and is closely related to the H. pylori density in the stomach. Though preneoplasia within IP is rare, which does not support the recommendation to regularly obtain biopsies for histopathology, it might be beneficial in a subset of patients with persistent globus sensation.
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Affiliation(s)
- Vivek Rathod
- Department of Digestive Health and Disease, Kilpauk Medical College, Chennai, Tamil Nadu, India
| | - Anand A.
- Department of Digestive Health and Disease, Kilpauk Medical College, Chennai, Tamil Nadu, India
| | | | - Mohamed Kani Shaikh
- Department of Digestive Health and Disease, Kilpauk Medical College, Chennai, Tamil Nadu, India
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Sirkeci Ö, Sirkeci EE, Ulaş T. Does waterpipe smoking increase the risk of Helicobacter pylori infection? JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2022; 27:7. [PMID: 35342453 PMCID: PMC8943576 DOI: 10.4103/jrms.jrms_433_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 11/26/2019] [Accepted: 03/21/2021] [Indexed: 11/25/2022]
Abstract
Background: In this study, we aimed to evaluate whether waterpipe smoking can be associated with the transmission of Helicobacter pylori infection or not. Materials and Methods: Between March 2018 and April 2019, 445 patients aged over 18 years old who were admitted to outpatient clinics with dyspeptic complaints were recruited for the study. Patients are divided into two groups – Group 1 is H. pylori-positive patients and Group 2 is negative. Waterpipe smoking, smoking, age, gender, and educational status were compared among groups. Results: Two hundred and sixty-one women (58%) and 184 men (42%), totally 445 patients, tested for H. pylori infection. Seventy-nine of 261 (30%) women and 60 of 184 (32%) men had H. pylori positive. One hundred and sixty-two of 445 (36%) patients were smoking cigarette and 66 of 445 (14%) patients were using waterpipe tobacco. Waterpipe smoking individuals were found to be associated with the H. pylori positivity (P < 0.001); whereas, age, gender, educational level, and smoking were not found to be statistically significant (all P > 0.05). In binary logistic regression analysis, waterpipe tobacco smoking was found to be the only independent predictor of H. pylori infection (P < 0.001, odds ratio = 5.51, confidence interval: 3.158–9.617). Conclusion: Waterpipe smoking seems to be an important risk factor for H. pylori infection and may be one of the reasons of high prevalence of H. pylori infection.
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Affiliation(s)
- Özgür Sirkeci
- Department of Gastroenterology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Emel Erkuş Sirkeci
- Department of Emergency, Faculty of Medicine, Near East University, Nicosia, Northern Cyprus
| | - Turgay Ulaş
- Department of Hematology, Faculty of Medicine, Near East University, Nicosia, Northern Cyprus
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Tsang SH, Avilés-Santa ML, Abnet CC, Brito MO, Daviglus ML, Wassertheil-Smoller S, Castañeda SF, Minnerath S, Talavera GA, Graubard BI, Thyagarajan B, Camargo MC. Seroprevalence and Determinants of Helicobacter pylori Infection in the Hispanic Community Health Study/Study of Latinos. Clin Gastroenterol Hepatol 2022; 20:e438-e451. [PMID: 33667677 PMCID: PMC8410907 DOI: 10.1016/j.cgh.2021.02.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/22/2021] [Accepted: 02/26/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Helicobacter pylori infection is the primary known risk factor for gastric cancer. Despite the global decline in H. pylori prevalence, this infection remains a major public health concern in developing areas, including Latin America. Our study aimed to determine H. pylori seroprevalence and identified its determinants among Hispanics/Latinos living in the United States (U.S.). METHODS The Hispanic Community Health Study/Study of Latinos (HCHS/SOL) is a population-based sample of self-identified Hispanics/Latinos (n = 16,144) in four U.S. communities, aged 18 to 74 years, recruited from randomly selected households using a stratified two-stage area probability sample design based on sampling households within sampled census block groups weighted for differential response rates. Anti-H. pylori immunoglobulin G antibodies were measured by an enzyme-linked immunosorbent assay using plasma samples. We calculated adjusted seroprevalence (i.e., predicted margins) from multivariable logistic regression models. RESULTS The overall weighted H. pylori seroprevalence was 57% among HCHS/SOL participants, with 38% and 62% seropositivity among U.S.-born and non-U.S.-born individuals, respectively. Age-adjusted prevalence varied by self-reported Hispanic/Latino background, ranging from 47% in Puerto Rican to 72% in Central American backgrounds. Adjusted H. pylori seroprevalence was higher in the following groups: older age, male sex, lower education, non-U.S. born status, smoking, greater number of missing teeth, fewer doctor visits, lower ferritin level, and hepatitis A seropositivity. CONCLUSIONS H. pylori seroprevalence in Hispanics/Latinos remains high and differed significantly by Hispanic/Latino background. H. pylori seropositivity is strongly associated with poor socioeconomic conditions. These findings highlight the ongoing importance of this bacterial infection in the U.S.
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Affiliation(s)
- Sabrina H Tsang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland.
| | - M Larissa Avilés-Santa
- Division on Clinical and Health Services Research, National Institute on Health and Health Disparities, Rockville, Maryland
| | - Christian C Abnet
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Maximo O Brito
- Division of Infectious Diseases, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Martha L Daviglus
- Institute for Minority Health Research, University of Illinois at Chicago, Chicago, Illinois
| | | | - Sheila F Castañeda
- Department of Psychology, San Diego State University, San Diego, California
| | - Sharon Minnerath
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Gregory A Talavera
- Department of Psychology, San Diego State University, San Diego, California
| | - Barry I Graubard
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Bharat Thyagarajan
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - M Constanza Camargo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
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Tanni NN, Ahmed S, Anwar S, Kismat S, Halder K, Nesa M, Habib FB. Endoscopic and histopathological findings in adult dyspeptic patients, and their association with Helicobacter pylori infection in Dhaka, Bangladesh. IJID REGIONS 2022; 2:30-34. [PMID: 35757067 PMCID: PMC9216390 DOI: 10.1016/j.ijregi.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/16/2021] [Accepted: 11/16/2021] [Indexed: 02/07/2023]
Abstract
The prevalence of H. pylori in our study was 32.9%. Most of the dyspeptic patients were found to have gastritis endoscopically. The presence of H. pylori infection was found in 55.5% of duodenal ulcer cases.
Objectives Conventional upper-intestinal endoscopy is usually performed to diagnose Helicobacter pylori (H. pylori) associated diseases, using gastric mucosa from the biopsy. The objective of our study was to identify the prevalence of H. pylori and its relation with endoscopic findings and histopathological features in dyspeptic adult patients. Methods Gastroduodenal biopsy specimens were collected from 143 adult dyspeptic outpatients who attended the Department of Gastroenterology, Bangabandhu Sheikh Mujib Medical University (BSMMU) and Dhaka Medical College Hospital (DMCH), for endoscopy. H. pylori was identified by rapid urease test (RUT), ureC gene PCR, and histological staining (Giemsa). Results The study population was divided into H. pylori-positive cases (47; 32.9%) and H. pylori-negative cases (96; 67.1%), based on the case definitions used in the study. The highest rate of H. pylori infection was found in the 41–50 years age group (25.5%). Endoscopically, 101 (97.1%) dyspeptic patients had gastritis, with the majority of H. pylori infections found among histopathologically diagnosed duodenal ulcer patients. Endoscopic findings were significantly correlated with histological findings (p < 0.001). Conclusion Significant correlations between endoscopic and histopathological findings were observed. Early detection and prompt treatment of H. pylori infection are essential for the prevention of serious complications.
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Evolution of Diagnostic Methods for Helicobacter pylori Infections: From Traditional Tests to High Technology, Advanced Sensitivity and Discrimination Tools. Diagnostics (Basel) 2022; 12:diagnostics12020508. [PMID: 35204598 PMCID: PMC8871415 DOI: 10.3390/diagnostics12020508] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/06/2022] [Accepted: 02/14/2022] [Indexed: 01/10/2023] Open
Abstract
Rapid diagnosis and treatment application in the early stages of H. pylori infection plays an important part in inhibiting the transmission of this infection as this bacterium is involved in various gastric pathologies such as gastritis, gastro-duodenal ulcer, and even gastric neoplasia. This review is devoted to a quick overview of conventional and advanced detection techniques successfully applied to the detection of H. pylori in the context of a compelling need to upgrade the standards of the diagnostic methods which are currently being used. Selecting the best diagnostic method implies evaluating different features, the use of one or another test depending on accessibility, laboratories equipment, and the clinical conditions of patients. This paper aims to expose the diagnosis methods for H. pylori that are currently available, highlighting their assets and limitations. The perspectives and the advantages of nanotechnology along with the concept of nano(bio)sensors and the development of lab-on-chip devices as advanced tools for H. pylori detection, differentiation, and discrimination is also presented, by emphasizing multiple advantages: simple, fast, cost-effective, portable, miniaturized, small volume of samples required, highly sensitive, and selective. It is generally accepted that the development of intelligent sensors will completely revolutionize the acquisition procedure and medical decision in the framework of smart healthcare monitoring systems.
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Araújo GRL, Marques HS, Santos MLC, da Silva FAF, da Brito BB, Correa Santos GL, de Melo FF. Helicobacter pylori infection: How does age influence the inflammatory pattern? World J Gastroenterol 2022; 28:402-411. [PMID: 35125826 PMCID: PMC8790560 DOI: 10.3748/wjg.v28.i4.402] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/21/2021] [Accepted: 01/12/2022] [Indexed: 02/06/2023] Open
Abstract
The inflammatory pattern during Helicobacter pylori (H. pylori) infection is changeable and complex. During childhood, it is possible to observe a predominantly regulatory response, evidenced by high concentrations of key cytokines for the maintenance of Treg responses such as TGF-β1 and IL-10, in addition to high expression of the transcription factor FOXP3. On the other hand, there is a predominance of cytokines associated with the Th1 and Th17 responses among H. pylori-positive adults. In the last few years, the participation of the Th17 response in the gastric inflammation against H. pylori infection has been highlighted due to the high levels of TGF-β1 and IL-17 found in this infectious scenario, and growing evidence has supported a close relationship between this immune response profile and unfavorable outcomes related to the infection. Moreover, this cytokine profile might play a pivotal role in the effectiveness of anti-H. pylori vaccines. It is evident that age is one of the main factors influencing the gastric inflammatory pattern during the infection with H. pylori, and understanding the immune response against the bacterium can assist in the development of alternative prophylactic and therapeutic strategies against the infection as well as in the comprehension of the pathogenesis of the outcomes related to that microorganism.
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Affiliation(s)
- Glauber Rocha Lima Araújo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Brazil
| | - Hanna Santos Marques
- Campus Vitória da Conquista, Universidade Estadual do Sudoeste da Bahia, Vitória da Conquista 45083-900, Brazil
| | | | | | - Breno Bittencourt da Brito
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Brazil
| | - Gabriel Lima Correa Santos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Brazil
| | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Brazil
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Harris RB, Brown HE, Begay RL, Sanderson PR, Chief C, Monroy FP, Oren E. Helicobacter pylori Prevalence and Risk Factors in Three Rural Indigenous Communities of Northern Arizona. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020797. [PMID: 35055622 PMCID: PMC8775467 DOI: 10.3390/ijerph19020797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori (H. pylori) is one of the most common bacterial stomach infections and is implicated in a majority of non-cardia gastric cancer. While gastric cancer has decreased in the United States (US), the incidence in the Navajo Nation is nearly four times higher than surrounding Non-Hispanic White populations. Little is known about H. pylori prevalence in this population or other Indigenous communities in the lower 48 states. In this cross-sectional study, 101 adults representing 73 households from three Navajo Nation chapter communities completed surveys and a urea breath test for active H. pylori. Accounting for intrahousehold correlation, H. pylori prevalence was 56.4% (95% CI, 45.4–66.8) and 72% of households had at least one infected person. The odds of having an active infection in households using unregulated water were 8.85 (95% CI, 1.50–53.38) that of the use of regulated water, and males had 3.26 (95% CI, 1.05–10.07) higher odds than female. The prevalence of H. pylori in Navajo is similar to that seen in Alaska Natives. Further investigation into factors associated with prevention of infection is needed as well as understanding barriers to screening and treatment.
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Affiliation(s)
- Robin B. Harris
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85724, USA; (H.E.B.); (R.L.B.)
- Correspondence:
| | - Heidi E. Brown
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85724, USA; (H.E.B.); (R.L.B.)
| | - Rachelle L. Begay
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85724, USA; (H.E.B.); (R.L.B.)
| | - Priscilla R. Sanderson
- Department of Health Sciences, College of Health and Human Services, Northern Arizona University, SAS (Bldg 60), 1100 S. Beaver St., POB 15095, Flagstaff, AZ 86011, USA;
| | - Carmenlita Chief
- Center for Health Equity Research, College of Health and Human Services, Northern Arizona University, 1395 South Knoles Drive, POB 4065, Flagstaff, AZ 86011, USA;
| | - Fernando P. Monroy
- Department of Biological Sciences, College of the Environment, Forestry and Natural Sciences, Northern Arizona University, 617 S. Beaver St., Flagstaff, AZ 86011, USA;
| | - Eyal Oren
- Division of Epidemiology & Biostatistics, School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA;
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Jung YJ, Kim HJ, Park CH, Park SJ, Kim N. Effects of Reproductive Factors on Lauren Intestinal-Type Gastric Cancers in Females: A Multicenter Retrospective Study in South Korea. Gut Liver 2022; 16:706-715. [PMID: 35000933 PMCID: PMC9474480 DOI: 10.5009/gnl210293] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/05/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Gastric cancers (GCs), particularly the Lauren intestinal type, show a male predominance. The aim of this study was to investigate the effects of reproductive factors on GCs in females, according to Lauren classification. Methods Medical records of 1,849 males and 424 females who underwent radical gastrectomy or endoscopic resection for GCs between 2010 and 2018 were reviewed. The incidences of intestinal-type GCs were compared between males and groups of females stratified according to postmenopausal period. Associations between reproductive factors in females and intestinaltype GCs were analyzed using multivariate models. Results The proportions of intestinal-type GCs were significantly lower in premenopausal (19%), less than 10 years postmenopausal (30.4%), and 10 to 19 years postmenopausal females (44.1%) than in males (61.0%) (p<0.05 for all). Females ≥20 years postmenopause had a proportion of intestinal-type GCs similar to that in males (60.6% vs 61.0%; p=0.948). Multivariate analysis revealed that age (odds ratio [OR], 1.075; 95% confidence interval [CI], 1.039 to 1.113; p<0.001) and parity ≥3 (OR, 1.775; 95% CI, 1.012 to 3.114; p=0.045) were positively associated with an increased risk of intestinal-type GCs in postmenopausal females, while long fertility duration (OR, 1.147; 95% CI, 1.043 to 1.261; p=0.005) was positively associated with an increased risk of intestinal-type GCs in premenopausal females. Conclusions There were no significant differences in the proportions of intestinal-type GCs between males and females ≥20 years postmenopause, suggesting that female reproductive factors play a role in the prevention of intestinal-type GC.
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Affiliation(s)
- Yoon Ju Jung
- Division of Gastrointestinal Surgery, Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Hee Jin Kim
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Changwon, Korea
| | - Cho Hyun Park
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seun Ja Park
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Moradian F, Fararouei M, Karami M, Ghelichi-Ghojogh M, Gheibi Z, Nikeghbalian Z, Akbari A, Akbari ME. Trend of geographical distribution of stomach cancer in Iran from 2004 to 2014. BMC Gastroenterol 2022; 22:4. [PMID: 34983394 PMCID: PMC8725466 DOI: 10.1186/s12876-021-02066-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/09/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Among different common types of cancer, gastric cancer (GC) is a worldwide health priority in both developing and developed countries. The aim of this study was to map the distribution of incident cases of GC in Iran to provide a geographical presentation of the incidence of the disease. METHODS This study used the Iranian National Cancer Registry (INCR) data from 2004 to 2014. We calculated the crude and age-standardized incidence rates of GC for each province and also defined the frequency distribution of different types and locations of GC by the provinces. RESULTS According to the results of the present study, the patients were predominantly male 49,907 (70.0%) and the most prevalent type of tumour was A1 (almost 96.4%) and C3 (2.0%). Also, a significant difference was observed between males and females in the distribution of the types of tumour (P < 0.001). In addition, a comparison of the distribution of the types of GC in Iran suggested that a significant difference exists between the provinces (P < 0.001). A significant difference was observed when the distribution of the location of GC tumors was compared between males and females and provinces (P < 0.001). Accordingly, pylori and cardia are the most common location of GC cancer among the study population (28.1% and 31.3% respectively). CONCLUSIONS The results of the current study suggested a higher rate of GC incidence in Iran when compared to the global figure in both females and males. Our study also revealed significant disparities between provinces with regard to the distribution of types, and location of GC. This may suggest involving different factors in GC in different parts of Iran. Further studies are needed to better understand the epidemiology and etiology of the disease in Iran.
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Affiliation(s)
- Farid Moradian
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Fararouei
- HIV/ADIS Research Center, School of Health, Shiraz University of Medical Science, Shiraz, Iran
| | - Maryam Karami
- School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zahra Gheibi
- Department of Epidemiology, Shiraz University of Medical Science, Shiraz, Iran
| | - Zahra Nikeghbalian
- School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Akbari
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Oliveira AKS, Silva LLDL, Miguel MP, Blanco AJV, Carneiro LC, Barbosa MS. HELICOBACTER PYLORI cagA VIRULENCE GENE AND SEVERE ESOGASTRODUODENAL DISEASES: IS THERE AN ASSOCIATION? ARQUIVOS DE GASTROENTEROLOGIA 2021; 58:468-475. [PMID: 34909852 DOI: 10.1590/s0004-2803.202100000-85] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/05/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Helicobacter pylori colonizes approximately half of the world's human population. Its presence in the gastric mucosa is associated with an increased risk of gastric adenocarcinoma, gastric lymphoma, and peptic ulcer disease. In Brazil, the high prevalence of H. pylori infection is a serious health problem. H. pylori virulence factors are associated with an increased risk of serious gastrointestinal disorders. The cagA gene encodes a cytotoxin-A-associated antigen (CagA) that is involved in bacterial pathogenicity. H. pylori strains carrying the cag pathogenicity island (cag-PAI) are significantly associated with severe clinical outcomes and histopathological changes. OBJECTIVE The present study aims to investigate the prevalence of the cagA gene among H. pylori isolates from patients with different gastric pathologies. Further, the study hopes to verify its association with clinical outcomes. In addition, phylogenetic analysis was performed on cagA-positive H. pylori strains from patients with severe and non-severe diseases. METHODS Gastric specimens were collected through a biopsy from 117 patients with different esogastroduodenal diseases. DNA was extracted from these gastric specimens and the polymerase chain reaction was performed to amplify the gene fragments corresponding to the 16S ribosomal RNA and cagA genes using specific primers. The polymerase chain reaction products of selected samples positive for cagA were sequenced. The sequences were aligned with reference sequences from the National Center for Biotechnology Information (NCBI) (Bethesda/USA), and a phylogenetic tree was constructed. RESULTS H. pylori was detected in 65.9% (77/117) of Brazilian patients with different gastroduodenal disorders. Overall, 80.5% (62/77) of the strains were cagA-positive. The ages of patients with cagA-positive strains (15 males and 47 females) ranged from 18 to 74 years. The lesions were categorized as non-severe and severe according to the endoscopic and histopathological reports the most prevalent non-severe esogastroduodenal lesion was gastritis 54/77 (70.12%), followed by esophagitis 12/77 (15.58%) and duodenitis 12/77 (15.58%). In contrast, the most prevalent severe lesions were atrophy 7/77 (9.09%), followed by metaplasia 3/77 (3.86%) and gastric adenocarcinoma 2/77 (2.59%). Phylogenetic analyses performed with the partial sequences of the cagA gene obtained from local strains were grouped in the same clade. No differences in phylogenetic distribution was detected between severe and non-severe diseases. CONCLUSION The cagA gene is highly prevalent among H. pylori isolates from gastric lesions in Brazilian patients. The presence of the cagA gene was not considered a marker of the severity of esogastroduodenal lesions in the present study. This is the first study to investigate the phylogenetic population structure of H. pylori strains in a Brazilian capital, which may improve our understanding of the clinical outcome of H. pylori infection.
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Affiliation(s)
| | | | - Marina Pacheco Miguel
- Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, GO, Brasil
| | | | - Lilian Carla Carneiro
- Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, GO, Brasil
| | - Mônica Santiago Barbosa
- Universidade Federal de Goiás, Núcleo de Estudos da Helicobacter pylori, Goiânia, GO, Brasil.,Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, GO, Brasil
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Zhang W, Liang X, Chen X, Ge Z, Lu H. Time trends in the prevalence of Helicobacter pylori infection in patients with peptic ulcer disease: a single-center retrospective study in Shanghai. J Int Med Res 2021; 49:3000605211051167. [PMID: 34686094 PMCID: PMC8674481 DOI: 10.1177/03000605211051167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Objective The present study aimed to investigate the recent trends in
Helicobacter pylori infection associated with peptic
ulcer disease in a large population in Shanghai. Methods We analyzed the medical records of all patients who had undergone upper
gastrointestinal endoscopy (EGD) for uninvestigated dyspepsia at Ren Ji
Hospital between 2013 and 2019 to determine the prevalence of H.
pylori infection in patients with peptic ulcers. Results Peptic ulcers were found in 40,385 of the 383,413 patients who underwent EGD
during the study period. Over the 7-year study period, the annual prevalence
of H. pylori among patients receiving EGD declined from
32.2% to 26.5%. H. pylori was present in 60% of ulcers and
the incidence was higher (66.9%) in duodenal compared with gastric ulcers
(48.5%). The proportion of H. pylori-associated gastric
ulcers declined from 52.2% to 49.3% and that of H.
pylori-positive duodenal ulcers declined from 70.0% to 63.9%. Conclusion The prevalence of H. pylori-positive peptic ulcers, mainly
duodenal ulcers, fell from 2013 to 2019. However, the proportion of
non-H. pylori-associated peptic ulcer disease
increased, especially in elderly people, possibly due to the use of
nonsteroidal anti-inflammatory drugs. Further research is needed to confirm
this hypothesis.
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Affiliation(s)
- Wei Zhang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Xiao Liang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Xiaoyu Chen
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Zhizheng Ge
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Hong Lu
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
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Cardos IA, Zaha DC, Sindhu RK, Cavalu S. Revisiting Therapeutic Strategies for H. pylori Treatment in the Context of Antibiotic Resistance: Focus on Alternative and Complementary Therapies. Molecules 2021; 26:molecules26196078. [PMID: 34641620 PMCID: PMC8512130 DOI: 10.3390/molecules26196078] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/01/2021] [Accepted: 10/02/2021] [Indexed: 12/15/2022] Open
Abstract
The prevalence of Helicobacter pylori infection remains significant worldwide and it depends on many factors: gender, age, socio-economic status, geographic area, diet, and lifestyle. All successful infectious diseases treatments use antibiotic-susceptibility testing, but this strategy is not currently practical for H. pylori and the usual cure rates of H. pylori are lower than other bacterial infections. Actually, there is no treatment that ensures complete eradication of this pathogen. In the context of an alarming increase in resistance to antibiotics (especially to clarithromycin and metronidazole), alternative and complementary options and strategies are taken into consideration. As the success of antibacterial therapy depends not only on the susceptibility to given drugs, but also on the specific doses, formulations, use of adjuvants, treatment duration, and reinfection rates, this review discusses the current therapies for H. pylori treatment along with their advantages and limitations. As an alternative option, this work offers an extensively referenced approach on natural medicines against H. pylori, including the significance of nanotechnology in developing new strategies for treatment of H. pylori infection.
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Affiliation(s)
- Ioana Alexandra Cardos
- Faculty of Medicine and Pharmacy, Doctoral School of Biomedical Sciences, University of Oradea, 1 University Street, 410087 Oradea, Romania;
| | - Dana Carmen Zaha
- Department of Preclinical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 1 University Street, 410087 Oradea, Romania
- Correspondence: (D.C.Z.); (R.K.S.); (S.C.)
| | - Rakesh K. Sindhu
- Chitkara College of Pharmacy, Chitkara University, Chandigarh 140401, India
- Correspondence: (D.C.Z.); (R.K.S.); (S.C.)
| | - Simona Cavalu
- Department of Preclinical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 1 University Street, 410087 Oradea, Romania
- Correspondence: (D.C.Z.); (R.K.S.); (S.C.)
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Busada JT, Peterson KN, Khadka S, Xu X, Oakley RH, Cook DN, Cidlowski JA. Glucocorticoids and Androgens Protect From Gastric Metaplasia by Suppressing Group 2 Innate Lymphoid Cell Activation. Gastroenterology 2021; 161:637-652.e4. [PMID: 33971182 PMCID: PMC8328958 DOI: 10.1053/j.gastro.2021.04.075] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/13/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The immune compartment is critical for maintaining tissue homeostasis. A weak immune response increases susceptibility to infection, but immune hyperactivation causes tissue damage, and chronic inflammation may lead to cancer development. In the stomach, inflammation damages the gastric glands and drives the development of potentially preneoplastic metaplasia. Glucocorticoids are potent anti-inflammatory steroid hormones that are required to suppress gastric inflammation and metaplasia. However, these hormones function differently in males and females. Here, we investigate the impact of sex on the regulation of gastric inflammation. METHODS Endogenous glucocorticoids and male sex hormones were removed from mice using adrenalectomy and castration, respectively. Mice were treated with 5α-dihydrotestosterone (DHT) to test the effects of androgens on regulating gastric inflammation. Single-cell RNA sequencing of gastric leukocytes was used to identify the leukocyte populations that were the direct targets of androgen signaling. Type 2 innate lymphoid cells (ILC2s) were depleted by treatment with CD90.2 antibodies. RESULTS We show that adrenalectomized female mice develop spontaneous gastric inflammation and spasmolytic polypeptide-expressing metaplasia (SPEM) but that the stomachs of adrenalectomized male mice remain quantitatively normal. Simultaneous depletion of glucocorticoids and sex hormones abolished the male-protective effects and triggered spontaneous pathogenic gastric inflammation and SPEM. Treatment of female mice with DHT prevented gastric inflammation and SPEM development when administered concurrent with adrenalectomy and also reversed the pathology when administered after disease onset. Single-cell RNAseq of gastric leukocytes revealed that ILC2s expressed abundant levels of both the glucocorticoid receptor (Gr) and androgen receptor (Ar). We demonstrated that DHT treatment potently suppressed the expression of the proinflammatory cytokines Il13 and Csf2 by ILC2s. Moreover, ILC2 depletion protected the stomach from SPEM development. CONCLUSIONS Here, we report a novel mechanism by which glucocorticoids and androgens exert overlapping effects to regulate gastric inflammation. Androgen signaling within ILC2s prevents their pathogenic activation by suppressing the transcription of proinflammatory cytokines. This work revealed a critical role for sex hormones in regulating gastric inflammation and metaplasia.
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MESH Headings
- Adrenalectomy
- Androgens/pharmacology
- Animals
- Anti-Inflammatory Agents/pharmacology
- Cellular Microenvironment
- Dihydrotestosterone/pharmacology
- Disease Models, Animal
- Disease Susceptibility
- Female
- Gastric Mucosa/drug effects
- Gastric Mucosa/immunology
- Gastric Mucosa/metabolism
- Gastric Mucosa/pathology
- Gastritis, Atrophic/immunology
- Gastritis, Atrophic/metabolism
- Gastritis, Atrophic/pathology
- Gastritis, Atrophic/prevention & control
- Glucocorticoids/metabolism
- Gonadal Steroid Hormones/metabolism
- Granulocyte-Macrophage Colony-Stimulating Factor/genetics
- Granulocyte-Macrophage Colony-Stimulating Factor/metabolism
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Intercellular Signaling Peptides and Proteins/metabolism
- Interleukin-13/genetics
- Interleukin-13/metabolism
- Interleukin-33/genetics
- Interleukin-33/metabolism
- Lymphocytes/drug effects
- Lymphocytes/immunology
- Lymphocytes/metabolism
- Male
- Metaplasia
- Mice, Inbred C57BL
- Orchiectomy
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Receptors, Glucocorticoid/genetics
- Receptors, Glucocorticoid/metabolism
- Sex Factors
- Signal Transduction
- Thy-1 Antigens/genetics
- Thy-1 Antigens/metabolism
- Mice
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Affiliation(s)
- Jonathan T Busada
- Molecular Endocrinology Group, Signal Transduction Laboratory, North Carolina; Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia.
| | - Kylie N Peterson
- Molecular Endocrinology Group, Signal Transduction Laboratory, North Carolina
| | - Stuti Khadka
- Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia
| | - Xiaojiang Xu
- Integrative Bioinformatics Support Group, Epigenetics and Stem Cell Biology Laboratory, North Carolina
| | - Robert H Oakley
- Molecular Endocrinology Group, Signal Transduction Laboratory, North Carolina
| | - Donald N Cook
- Immunogenetics Group, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - John A Cidlowski
- Molecular Endocrinology Group, Signal Transduction Laboratory, North Carolina.
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Olczak-Pieńkowska A, Hryniewicz W. Impact of Social, Economic, and Healthcare Factors on the Regional Structure of Antibiotic Consumption in Primary Care in Poland (2013-2017). Front Public Health 2021; 9:680975. [PMID: 34395362 PMCID: PMC8358207 DOI: 10.3389/fpubh.2021.680975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/22/2021] [Indexed: 11/15/2022] Open
Abstract
Antibiotic resistance is one of the most important public health threats worldwide. Antimicrobial misuse and overuse are well-recognized risk factors for the resistance emergence and spread. Monitoring of antibiotic consumption (AC) is an important element in strategies to combat antibiotic resistance. As a result of AC surveillance in Poland, regional differences in AC levels were observed. This study aimed to characterize the regional AC in the period 2013–2017 in primary care in Poland and to assess the possible determinants that influence the AC at the regional level. The study analyzed relationships between AC and its factors (grouped in three different categories: demographic, economic, and related to the organization of healthcare). Data covered AC in primary care in 5 years period (2013–2017) from all 16 Polish voivodeships. The AC primary care data were sales data, expressed in defined daily doses (DDD) according to the WHO methodology. The yearly data on demographic, economic, and related healthcare factors were downloaded from the Central Statistical Office of Poland. Standard statistical parameters were used to characterize the AC. Non-standardized regression coefficients were used to estimate the quantitative dependence of variables. The strongest correlation was demonstrated with factors related to employment, female reproductive activity, mobility of the population, the number of outpatient consultations, and the number of dentists. A correlation was also found between population mobility and density. Recognized risk factors for increased AC should be a priority for interventions implementing and disseminating rational antibiotic policy.
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Affiliation(s)
- Anna Olczak-Pieńkowska
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Warsaw, Poland
| | - Waleria Hryniewicz
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Warsaw, Poland
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Martínez-Santos VI, Hernández Catalán M, Ojeda Salazar LO, Orozco Gómez OA, Lorenzo SI, Santos Gómez R, Romero-Castro NS, Reyes Ríos R, Martinez Carrillo DN, Fernández-Tilapa G. Helicobacter pylori prevalence in healthy Mexican children: comparison between two non-invasive methods. PeerJ 2021; 9:e11546. [PMID: 34249489 PMCID: PMC8247697 DOI: 10.7717/peerj.11546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/11/2021] [Indexed: 12/14/2022] Open
Abstract
Background Helicobacter pylori detection in asymptomatic children with suspected infection or with symptoms that suggest gastric pathology is problematic, since most of the methods depend on the endoscopic study, an invasive and expensive method. Non-invasive methods can be a feasible alternative but must be validated. The purpose of this study was to evaluate the concordance between H. pylori DNA detection in saliva and dental plaque by PCR, with antigen detection in stool by immunochromatography, among asymptomatic children in the state of Guerrero, Mexico. Methods Dental plaque, saliva, and stool samples were obtained from 171 children between 6 and 12 years old. H. pylori detection in saliva and dental plaque was performed by PCR using specific primers for the 16S rRNA gene, while the detection in stool samples was performed by immunochromatography using the CerTest kit. Results We found an overall H. pylori prevalence of 59.6% (102/171). Of the H. pylori positive children 18% (20/111) were positive in saliva samples, 28.1% (34/121) in dental plaque samples, and 50.4% (71/141) in stool samples. A higher prevalence was found in girls (64.7%, p = 0.002). Although some of the children declared some dyspeptic symptoms, these were no related to H. pylori. In conclusion, we found a high prevalence of H. pylori in asymptomatic children and the highest proportion was detected by stool antigen test, which was the most feasible method to detect H. pylori infection.
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Affiliation(s)
| | - Manuel Hernández Catalán
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Luis Octavio Ojeda Salazar
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Octavio Andrei Orozco Gómez
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Sandra Ines Lorenzo
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Rayver Santos Gómez
- Ih Max Gabinete de Diagnóstico, Universidad de Valle de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Norma S Romero-Castro
- Facultad de Odontología, Universidad Autónoma de Guerrero, Acapulco, Guerrero, Mexico
| | - Roxana Reyes Ríos
- Escuela Superior de Ciencias Naturales, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Dinorah Nashely Martinez Carrillo
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Gloria Fernández-Tilapa
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
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Arslan M, Balamtekin N. The Relationship between Primary Duodenogastric Reflux and Helicobacter pylori Gastritis in Children. Dig Dis 2021; 40:276-281. [PMID: 34010846 DOI: 10.1159/000517263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/14/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Most studies of the relationship between duodenogastric reflux (DGR) and Helicobacter pylori have reported that the presence of DGR decreases H. pylori colonization, while H. pylori infection increases the frequency of DGR by impairing antroduodenal motility. The present study aimed to investigate the relationship between primary DGR and the prevalence of H. pylori in children, as well as the degree of colonization and the presence and severity of gastritis. METHODS Included in the study were 410 patients between the ages of 2 and 18 years, referred to the pediatric gastroenterology clinic with complaints of dyspepsia, abdominal pain, and nausea/vomiting, who underwent upper gastrointestinal system endoscopic examination and stomach biopsy. The study group included 60 patients with DGR, while 350 non-DGR patients formed the control group. RESULTS The mean age of patients with DGR was 15.7 ± 2.1 years, while the mean age of the control group was 14.2 ± 3.8 years (p = 0.02). Of those with DGR, 50 (83.3%) were girls, while in the control group, 215 (61.4%) were girls (p = 0.001). Of patients with DGR, 16 were H. pylori (+) (26.7%), while in the control group, 168 were H. pylori (+) (48%) (p = 0.002). There was no significant difference between the 2 groups with respect to H. pylori degree of colonization (p = 0.08). Gastritis was present in 56 (93.3%) patients in the DGR group and 322 (92%) patients in the control group (p = 0.72). A significant difference was found between the 2 groups in terms of gastritis severity (p = 0.01). CONCLUSIONS The mean age of patients with DGR was significantly higher than that of patients without DGR, and DGR was found to be more common in girls. In patients with DGR, H. pylori prevalence was significantly lower than in those without DGR; however, no significant difference was found between the 2 groups with respect to the colonization degree.
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Affiliation(s)
- Melike Arslan
- Department of Child Health and Diseases, Department of Pediatric Gastroenterology, Gülhane Training and Research Hospital, Ankara, Turkey
| | - Necati Balamtekin
- Department of Child Health and Diseases, Department of Pediatric Gastroenterology, Gülhane Training and Research Hospital, Ankara, Turkey
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Doulberis M, Papaefthymiou A, Srivastava DS, Exadaktylos AK, Katsinelos P, Kountouras J, Polyzos SA. Update on the association between non-alcoholic fatty liver disease and Helicobacter pylori infection. Int J Clin Pract 2021; 75:e13737. [PMID: 32991019 DOI: 10.1111/ijcp.13737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Michael Doulberis
- Division of Gastroenterology and Hepatology, Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece
- First Laboratory of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
- Emergency Department, University Hospital Inselspital, Bern, Switzerland
| | - Apostolis Papaefthymiou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece
- First Laboratory of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
- Department of Gastroenterology, University Hospital of Larisa, Larisa, Greece
| | - David S Srivastava
- Emergency Department, University Hospital Inselspital, Bern, Switzerland
| | | | - Panagiotis Katsinelos
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece
| | - Jannis Kountouras
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece
| | - Stergios A Polyzos
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece
- First Laboratory of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
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40
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Zhu Z, Chen Y, Ren J, Dawsey SM, Yin J, Freedman ND, Fan JH, Taylor PR, Liu Y, Qiao YL, Abnet CC. Serum Levels of Androgens, Estrogens, and Sex Hormone Binding Globulin and Risk of Primary Gastric Cancer in Chinese Men: A Nested Case-Control Study. Cancer Prev Res (Phila) 2021; 14:659-666. [PMID: 33766833 DOI: 10.1158/1940-6207.capr-20-0497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/20/2021] [Accepted: 03/22/2021] [Indexed: 12/24/2022]
Abstract
Gastric cancer shows a strong male predominance, and sex steroid hormones have been hypothesized to explain this sex disparity. Previous studies examining the associations between sex hormones and sex hormone binding globulin (SHBG) and risk of gastric cancer come primarily from western populations and additional studies in diverse populations will help us better understand the association. We performed a nested case-control study in Linxian Nutrition Intervention Trials cohorts to evaluate the associations among Chinese men, where we had sufficient cases to perform a well-powered study. Using radioimmunoassays and immunoassays, we quantitated androgens, estrogens, and SHBG in baseline serum from 328 men that developed noncardia gastric cancer and matched controls. We used multivariable unconditional logistic regression to calculate ORs and 95% confidence intervals (CI) and explored interactions with body mass index (BMI), age, alcohol drinking, smoking, and follow-up time. Subjects with SHBG in the highest quartile, as compared with those in the lowest quartile, had a significantly increased risk of gastric cancer (OR = 1.87; 95% CI, 1.01-3.44). We found some evidence for associations of sex steroid hormones in men with lower BMI. Our study found a novel association suggesting that higher serum concentrations of SHBG may be associated with risk of gastric cancer in men. We found no overall associations with sex hormones themselves, but future studies should expand the scope of these studies to include women and further explore whether BMI modifies a potential association. PREVENTION RELEVANCE: It was the first study to investigate the association of gastric cancer with prediagnostic sex steroid hormones and SHBG in an Asian male population. Although there were no overall associations for sex steroid hormone concentrations, higher concentrations of SHBG was associated with increased risk of noncardia gastric cancer.
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Affiliation(s)
- Zhikai Zhu
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yingxi Chen
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jiansong Ren
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Sanford M Dawsey
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jian Yin
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Neal D Freedman
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jin-Hu Fan
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Philip R Taylor
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Yuanli Liu
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - You-Lin Qiao
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Christian C Abnet
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
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Feyisa ZT, Woldeamanuel BT. Prevalence and associated risk factors of gastritis among patients visiting Saint Paul Hospital Millennium Medical College, Addis Ababa, Ethiopia. PLoS One 2021; 16:e0246619. [PMID: 33561152 PMCID: PMC7872234 DOI: 10.1371/journal.pone.0246619] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 01/24/2021] [Indexed: 12/15/2022] Open
Abstract
Background The health of individuals is not only the absence of disease checked medically, but also encompasses social and psychological aspects. Any departure from the state of physiological, psychological, or social well-being was affected by different factors. However, all contributory factors were not equally responsible for affecting disease. This study was undertaken as a search for the relative effects of sociocultural and individual behavioral factors contributing to acute and chronic gastritis patients visiting Saint Paul Hospital Millennium Medical College (SPHMMC). Methods A cross-sectional study was carried out on 364 patients visited SPHMMC in the study. Primary data were collected through an interview schedule tool with an exit approach by validating questions pertaining to sociocultural and individual behavioral factors. The status of gastritis was measured as whether patients had Helicobacter Pylori infection, signs and symptoms indicated gastritis that occurred, and persisted for less than a month, greater than a month, or none of the signs and symptoms. Descriptive statistics, bivariate analysis, and multivariable ordinal logistic regression model were used to identify the predictors of gastritis severity. P-value ≤ 0.05 was declared as an indicator of statistically significant. Results The prevalence of gastritis in the study area was 78.8%. Specifically, 48.9% and 29.9% had acute and chronic gastritis, respectively. The study found that low income and taking medicinal drugs was slightly significantly contributed to higher gastritis status; however, being younger age was slightly significantly contributed to lower gastritis status. Furthermore, the results indicated that eating spiced foods (Adjusted Odds Ratio (AOR) = 1.508; 95% CI: 1.046, 2.174), lack of physical exercise regularly (AOR = 1.780; 95% CI: 1.001, 3.168), stress (AOR = 2.168; 95% CI: 1.379, 3.4066), and substance use (AOR = 1.478; 95% CI: 1.093, 1.999) were significantly contributed to higher gastritis status. Conclusions The findings suggested that women should take enough rest and sleep well, men refrain from involvement in any risky behaviors, young people and those who earn low income per month should equip with knowledge and understanding on how to practice good health behaviors, eating foods on time, avoiding eating spiced food frequently, doing physical exercise regularly, and taking medicinal drugs according to physician advice are recommended.
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Shepherd R, Cheung AS, Pang K, Saffery R, Novakovic B. Sexual Dimorphism in Innate Immunity: The Role of Sex Hormones and Epigenetics. Front Immunol 2021; 11:604000. [PMID: 33584674 PMCID: PMC7873844 DOI: 10.3389/fimmu.2020.604000] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
Sexual dimorphism refers to differences between biological sexes that extend beyond sexual characteristics. In humans, sexual dimorphism in the immune response has been well demonstrated, with females exhibiting lower infection rates than males for a variety of bacterial, viral, and parasitic pathogens. There is also a substantially increased incidence of autoimmune disease in females compared to males. Together, these trends indicate that females have a heightened immune reactogenicity to both self and non-self-molecular patterns. However, the molecular mechanisms driving the sexually dimorphic immune response are not fully understood. The female sex hormones estrogen and progesterone, as well as the male androgens, such as testosterone, elicit direct effects on the function and inflammatory capacity of immune cells. Several studies have identified a sex-specific transcriptome and methylome, independent of the well-described phenomenon of X-chromosome inactivation, suggesting that sexual dimorphism also occurs at the epigenetic level. Moreover, distinct alterations to the transcriptome and epigenetic landscape occur in synchrony with periods of hormonal change, such as puberty, pregnancy, menopause, and exogenous hormone therapy. These changes are also mirrored by changes in immune cell function. This review will outline the evidence for sex hormones and pregnancy-associated hormones as drivers of epigenetic change, and how this may contribute to the sexual dimorphism. Determining the effects of sex hormones on innate immune function is important for understanding sexually dimorphic autoimmune diseases, sex-specific responses to pathogens and vaccines, and how innate immunity is altered during periods of hormonal change (endogenous or exogenous).
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Affiliation(s)
- Rebecca Shepherd
- Epigenetics Group, Infection and Immunity Theme, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Ada S. Cheung
- Department of Medicine (Austin Health), The University of Melbourne, Parkville, VIC, Australia
- Department of Endocrinology, Austin Health, Heidelberg, VIC, Australia
| | - Ken Pang
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
- Brain and Mitochondrial Research, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC, Australia
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Adolescent Medicine, Royal Children’s Hospital, Parkville, VIC, Australia
| | - Richard Saffery
- Epigenetics Group, Infection and Immunity Theme, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Boris Novakovic
- Epigenetics Group, Infection and Immunity Theme, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
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Zhang F, Pu K, Wu Z, Zhang Z, Liu X, Chen Z, Ye Y, Wang Y, Zheng Y, Zhang J, An F, Zhao S, Hu X, Li Y, Li Q, Liu M, Lu H, Zhang H, Zhao Y, Yuan H, Ding X, Shu X, Ren Q, Gou X, Hu Z, Wang J, Wang Y, Guan Q, Guo Q, Ji R, Zhou Y. Prevalence and associated risk factors of Helicobacter pylori infection in the Wuwei cohort of north-western China. Trop Med Int Health 2020; 26:290-300. [PMID: 33159827 DOI: 10.1111/tmi.13517] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To evaluate the prevalence of Helicobacter pylori infection and risk factors and to serotype the strains in Wuwei, located in north-western China, which has a high incidence of gastric cancer. METHODS Helicobacter pylori infection was analysed in 21 291 adults by 14 C-urea breath test, and H. pylori antibody were detected in 9183 serum samples by latex immunoturbidimetric method. The correlation of H. pylori infection with demographic-economic, lifestyle factors and medical history among the participants was determined by questionnaire. The antibodies against H. pylori urease, VacA and CagA in serum were determined by dot immunobinding assay. RESULTS The infection rate of H. pylori was 53.0%, and 90.1% of strains were type I strains. The H. pylori infection rate was higher among farmers (OR = 1.34, 95% CI: 1.19-1.50) and individuals who had a junior high school or higher education level (OR = 1.10, 95% CI: 1.06-1.15), and was lower in older individuals (OR = 0.86, 95% CI: 0.83-0.90), individuals with high income (OR = 0.93, 95% CI: 0.90-0.95), individuals with a habit of eating quickly (OR = 0.93, 95% CI: 0.87-0.99) and individuals who consumed more fruit and vegetables (OR = 0.90, 95% CI: 0.85-0.95). Individuals with history of cholecystitis/cholecystolithiasis, hypertension and asthma were negatively correlated with H. pylori infection (P < 0.05). CONCLUSION The prevalence of H. pylori infection is high in Wuwei. The major prevalent strain is type I strain. Age, education, occupation, household income, consumption of fruit and vegetables, and habit of eating quickly are independent risk factors for H. pylori infection, which is also associated with individuals with a history of extragastric diseases.
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Affiliation(s)
- Fuhua Zhang
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Ke Pu
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Zhengqi Wu
- Department of Gastroenterology, Gansu Province Wuwei Cancer Hospital, Wuwei, China
| | - Zhiyi Zhang
- Department of Gastroenterology, Gansu Province Wuwei Cancer Hospital, Wuwei, China
| | - Xin Liu
- Department of Gastroenterology, Hospital 940, Joint Logistic Support Force of PLA, Lanzhou, China
| | - Zhaofeng Chen
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Yuwei Ye
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Yuping Wang
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Ya Zheng
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Jinhua Zhang
- Department of Gastroenterology, Affiliated Hospital of Northwest Minzu University, Lanzhou, China
| | - Feng An
- Department of Gastroenterology, Wuwei People's Hospital, Wuwei, China
| | - Shijun Zhao
- Department of Gastroenterology, Wuwei Liangzhou Hospital, Wuwei, China
| | - Xiaobin Hu
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou, China
| | - Youpeng Li
- Department of Gastroenterology, Minqin County People's Hospital, Wuwei, China
| | - Qiang Li
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Min Liu
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Hong Lu
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Hongling Zhang
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Yue Zhao
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Hao Yuan
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Xiangping Ding
- Department of Gastroenterology, Affiliated Hospital of Northwest Minzu University, Lanzhou, China
| | - Xiaochuang Shu
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Qian Ren
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Xi Gou
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Zenan Hu
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Jun Wang
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Yuling Wang
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Quanlin Guan
- Department of Oncology Surgery, the First Hospital of Lanzhou University, Lanzhou, China
| | - Qinghong Guo
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Rui Ji
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
| | - Yongning Zhou
- Department of Gastroenterology, First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory for Gastrointestinal Diseases, Gansu Province, First Hospital of Lanzhou University, Lanzhou, China
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Kharel S, Bist A, Shrestha S, Homagain S. Helicobacter pylori healthy South Asians. JGH Open 2020; 4:1037-1046. [PMID: 33319035 PMCID: PMC7731813 DOI: 10.1002/jgh3.12426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/19/2020] [Accepted: 09/26/2020] [Indexed: 11/09/2022]
Abstract
We aimed to estimate the pooled prevalence of Helicobacter pylori among asymptomatic South Asians based on available literature and highlight the importance of screening asymptomatic individuals and implementing preventive strategies for eradicating H. pylori. Electronic databases such as PubMed and Embase, a regional database of WHO South Asian Region, and gray literature sites were searched for relevant studies from 1983 to 5 May 2020. In addition, references of the included studies were thoroughly searched. The random-effect model was used to calculate the pooled prevalence with a 95% confidence interval (CI) along with subgroup analysis. Analysis of 19 studies showed a pooled prevalence of 56.5%, ranging from 10.3 to 91.7%. In subgroup analysis by country, the highest prevalence rate was reported from Bangladesh (86.3%, 95% CI: 0.806-0.921), whereas the lowest prevalence was from Sri Lanka (10.3%, 95% CI: 0.072-0.135). No differences were found between males and females. Prevalence among children and adolescents was 65.3% (95% CI: 0.529-0.777), greater than adults, 56.9% (95% CI: 0.353-0.785). The prevalence rate showed a decreasing trend upon comparison of studies conducted before and after 2000. Our analysis reveals the high prevalence of H. pylori infection among asymptomatic healthy populations in South Asia, particularly in children and adolescents. Public health awareness and sanitation interventions, pure drinking water, and respective strategies on a policy level to eradicate H. pylori and additional extensive multicentric cohort studies are necessary.
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Affiliation(s)
- Sanjeev Kharel
- Maharajgunj Medical Campus Tribhuvan University Institute of Medicine Kathmandu Nepal
| | - Anil Bist
- Maharajgunj Medical Campus Tribhuvan University Institute of Medicine Kathmandu Nepal
| | - Suraj Shrestha
- Maharajgunj Medical Campus Tribhuvan University Institute of Medicine Kathmandu Nepal
| | - Sushan Homagain
- Maharajgunj Medical Campus Tribhuvan University Institute of Medicine Kathmandu Nepal
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Kahase D, Haile K. Helicobacter pylori Infection and Predictors Among Dyspeptic Adult Patients in Southwest Ethiopia: Cross-Sectional Study. Res Rep Trop Med 2020; 11:141-147. [PMID: 33244288 PMCID: PMC7683498 DOI: 10.2147/rrtm.s282557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/05/2020] [Indexed: 11/23/2022] Open
Abstract
Background Globally, H. pylori infection affects approximately 4.4 billion people. The burden of the infection varies within and between countries, with a higher prevalence reported from developing countries including Ethiopia. Thus, this study aimed to determine the magnitude and predictors of H. pylori infection among dyspeptic patients who visited Wachemo University Nigist Eleni Mohammed Memorial Referral Hospital, Southwest Ethiopia. Methods Consecutive willing dyspeptic adult patients (n=405) were enrolled in a cross-sectional study done from September to December 18, 2019. Socio-demographic and behavioral characteristics of the study participants were gathered by a pretested structured questionnaire. Stool samples were examined for H. pylori antigens using Wondfo one step H. pylori feces test kit. SPSS version 20 was utilized to compute descriptive statistics, binary and multivariate logistic regression. A p-value of <0.05 was considered statistically significant. Results Mean age of patients was 30 (± 7.4 SD) years, and 56.8% of participants were females. About 51.4% (208/405) of adult dyspeptic patients were infected with H. pylori. Being female gender (AOR꞊ 2.56, CI 95% ꞊1.61-4.07, p꞊0.001), consumption of alcohol (AOR꞊1.95, CI 95% ꞊1.02-3.73, p꞊ 0.019) and being undernourished (underweighted) (AOR꞊ 4.59, CI 95%꞊ 1.28-16.45, p꞊0.019) were independent predictors of H. pylori infection. Conclusion In the study area, high (51.4%) magnitude of H. pylori infection was observed in dyspeptic patients and significantly associated with female gender, alcohol consumption, and undernourishment.
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Affiliation(s)
- Daniel Kahase
- Department of Medical Laboratory Science, College of Medicine and Health Science, Wolkite University, Wolkite, Ethiopia
| | - Kassahun Haile
- Department of Medical Laboratory Science, College of Medicine and Health Science, Wolkite University, Wolkite, Ethiopia
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Costa AR, Lança de Oliveira M, Cruz I, Gonçalves I, Cascalheira JF, Santos CRA. The Sex Bias of Cancer. Trends Endocrinol Metab 2020; 31:785-799. [PMID: 32900596 DOI: 10.1016/j.tem.2020.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/07/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023]
Abstract
In hormone-dependent organs, sex hormones and dysregulated hormone signaling have well-documented roles in cancers of the breast and female reproductive organs including endometrium and ovary, as well as in prostate and testicular cancers in males. Strikingly, epidemiological data highlight significant differences between the sexes in the incidence of various cancers in nonreproductive organs, where the role of sex hormones has been less well studied. In an era when personalized medicine is gaining recognition, understanding the molecular, cellular, and biological differences between men and women is timely for developing more appropriate therapeutic interventions according to gender. We review evidence that sex hormones also shape many of the dysregulated cellular and molecular pathways that lead to cell proliferation and cancer in nonreproductive organs.
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Affiliation(s)
- Ana Raquel Costa
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal
| | | | - Inês Cruz
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal
| | - Isabel Gonçalves
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal
| | - José Francisco Cascalheira
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal; Department of Chemistry, University of Beira Interior, Covilhã, Portugal
| | - Cecília R A Santos
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal.
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Yuan P, Lin L, Zheng K, Wang W, Wu S, Huang L, Wu B, Chen T, Li X, Cai L. Risk factors for gastric cancer and related serological levels in Fujian, China: hospital-based case-control study. BMJ Open 2020; 10:e042341. [PMID: 32963075 PMCID: PMC7509973 DOI: 10.1136/bmjopen-2020-042341] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To explore the relationships between gastric cancer and serum pepsinogen I (PG I), PG II, PG I/II ratio, gastrin 17 (G-17) and Helicobacter pylori infection, and to investigate dietary and lifestyle risk factors for gastric cancer in Fujian Province, China. DESIGN A hospital-based, 1:1 matched case-control study. SETTING Patients with newly diagnosed gastric cancer were recruited from the Fujian Provincial Hospital and the No. 900 Hospital of the Joint Support Force of the Chinese People's Liberation Army between July 2014 and December 2016. PARTICIPANTS A total of 180 pairs of patients with gastric cancer and control subjects were recruited in the study, including 134 (74.4%) male pairs and 46 (25.6%) female pairs. INVESTIGATION AND ANALYSIS MEASURES Serological indicators were tested with ELISA kits. Dietary, lifestyle and psychological factors were investigated through face-to-face questionnaire. Relationships between gastric cancer and these influencing factors were examined by Χ2 test and conditional logistic regression. RESULTS Serum PG II and G-17 levels and H. pylori infection rate were higher in patients with gastric cancer than in control subjects (p<0.05), while PG I/II ratio was lower in patients with gastric cancer (p<0.05). Serum G-17 levels were higher in patients with corpus gastric cancer than in patients with antral gastric cancer (p<0.05). Serum PG II levels were higher in patients with advanced gastric cancer than in patients with early-stage cancer (p<0.05), however, PG I/II ratio was lower in patients with advanced-stage gastric cancer than in patients with early-stage cancer (p<0.05). Eating hot food (OR=2.32), eating pickled vegetables (OR=4.05) and often feel troubled (OR=2.21) were found to significantly increase the risk of gastric cancer (all p<0.05), while consuming onion or garlic (OR=0.35), drinking tea (OR=0.26), eating fresh fruits (OR=0.55), and high serum PG I (OR=0.99) or PG I/II ratio (OR=0.73) were found to be protective against gastric cancer. CONCLUSION Study results showed that serum PG, G-17 and H. pylori antibodies could be useful indicators for early diagnosis of gastric cancer. Increase in serum G-17 level might indicate the location of gastric cancer. Increase in serum PG II level and decrease in PG I/II ratio might imply the clinical stage. Eating hot food, eating pickled vegetables and often feel troubled may be risk factors for gastric cancer, while eating fresh fruits, eating onion or garlic, and drinking tea may be protective factors against the disease.
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Affiliation(s)
- Ping Yuan
- Fujian Key Laboratory of Zoonoses Research, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Lan Lin
- Chronic Disease Prevention, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
- Gastrointestinal Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Kuicheng Zheng
- Fujian Key Laboratory of Zoonoses Research, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Wen Wang
- Gastroenterology, Fuzhou General Hospital of Nanjing Military Command Area, Fuzhou, Fujian, China
| | - Sihan Wu
- Chronic Disease Prevention, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
| | - Liangxiang Huang
- Gastrointestinal Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Bingshan Wu
- Fujian Key Laboratory of Zoonoses Research, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
| | - Tiehui Chen
- Chronic Disease Prevention, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
| | - Xiaoqing Li
- Chronic Disease Prevention, Fujian Center for Disease Control and Prevention, Fuzhou, Fujian, China
| | - Lin Cai
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
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Carioli G, Bertuccio P, Levi F, Boffetta P, Negri E, La Vecchia C, Malvezzi M. Cohort Analysis of Epithelial Cancer Mortality Male-to-Female Sex Ratios in the European Union, USA, and Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17155311. [PMID: 32718003 PMCID: PMC7432705 DOI: 10.3390/ijerph17155311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/18/2020] [Accepted: 07/20/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To illustrate trends in sex ratios in epithelial cancer mortality in the EU, USA, and Japan, with a focus on age-specific and cohort patterns. METHODS We obtained certified deaths and resident populations from the World Health Organisation for the period of 1970-2014 for the USA, Japan, and the EU for 12 epithelial cancer sites. From these, we calculated both the age-specific and age-standardised male-to-female mortality sex ratios. We applied an age-period-cohort model to the sex ratios in order to disentangle the effects of age, period of death, and birth cohort. RESULTS Age-standardised mortality sex ratios were found to be unfavourable to males, apart from thyroid cancer. The highest standardised rates were in laryngeal cancer: 7·7 in the 1970s in the USA, 17·4 in the 1980s in the EU, and 16·8 in the 2000s in Japan. Cohort patterns likely to be due to excess smoking (1890 cohort) and drinking (1940 cohort) in men were identified in the USA, and were present but less defined in the EU and Japan for the oral cavity, oesophagus, liver, pancreas, larynx, lung, bladder, and kidney. CONCLUSION Mortality sex ratio patterns are partly explained by the differences in exposure to known and avoidable risk factors. These are mostly tobacco, alcohol, and obesity/overweight, as well as other lifestyle-related factors.
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Affiliation(s)
- Greta Carioli
- Department of Clinical Sciences and Community Health, Universitá degli Studi di Milano, 20133 Milan, Italy; (G.C.); (C.L.V.)
| | - Paola Bertuccio
- Department of Biomedical and Clinical Sciences, Universitá degli Studi di Milano, 20157 Milan, Italy; (P.B.); (E.N.)
| | - Fabio Levi
- Institute of Social and Preventive Medicine (IUMSP), Unisanté, University of Lausanne, CH-1010 Lausanne, Switzerland;
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA;
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Eva Negri
- Department of Biomedical and Clinical Sciences, Universitá degli Studi di Milano, 20157 Milan, Italy; (P.B.); (E.N.)
| | - Carlo La Vecchia
- Department of Clinical Sciences and Community Health, Universitá degli Studi di Milano, 20133 Milan, Italy; (G.C.); (C.L.V.)
| | - Matteo Malvezzi
- Department of Clinical Sciences and Community Health, Universitá degli Studi di Milano, 20133 Milan, Italy; (G.C.); (C.L.V.)
- Correspondence: ; Tel.: +39-02-503-20-872
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Altamimi E, Alsharkhat N, AlJawarneh A, Abu Hamad MR, Assi AA, Alawneh S, Al-Ahmad M. Declining prevalence of Helicobacter pylori infection in Jordanian children, report from developing country. Heliyon 2020; 6:e04416. [PMID: 32715122 PMCID: PMC7378580 DOI: 10.1016/j.heliyon.2020.e04416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 04/20/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Helicobacter pylori (H. pylori) is a Gram-negative bacteria that is harbored in the stomach and linked to chronic gastritis, peptic ulcer disease, and gastric malignancy. Most Helicobacter infections are acquired during early infancy. This study aimed to establish the prevalence of H. pylori infection in Jordanian children using the 13C-urea breath test. MATERIALS AND METHODS We prospectively enrolled children between the ages of 4 and 17 years from April 2019 to July 2019. Enrolled children were patients with nongastrointestinal complaints at the pediatric clinics of two hospitals and at community centers caring for healthy children in Irbid, Jordan. Questionnaires obtaining data on sociodemographics, clinical symptomatology, and hygienic risk factors were completed. Recruited children underwent a urea breath test (UBT). RESULTS Of 340 children who were recruited, 328 (96.5%) were included in the final analysis. The mean age (±standard deviation) was 9.56 (±3.98) years (range, 4.0-17 years), and 168 (51.2%) were males. Only 48 children (14.6%) tested positive. There were no gender differences. Living in an urban area and a family history of previous H. pylori infection were risk factors for the acquisition of infection (P = 0.007 and 0.001, respectively). Although gastrointestinal symptoms were more common in H. pylori-infected children, only hiccups and constipation were statistically significant (P = 0.035 and 0.038, respectively). CONCLUSION H. pylori infects at least 15% of Jordanian children, suggesting a significant drop in infection rates in this group. Larger-scale studies combined with clinical evaluations will be important for further understanding the reasons for the observed decrease in H. pylori infections in Jordanian children.
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Affiliation(s)
- Eyad Altamimi
- Pediatric Department, Jordan University of Science and Technology, Irbid, Jordan
- Pediatric Department, King Abdullah University Hospital, Irbid, Jordan
| | | | | | | | - Anas Abu Assi
- King Hussein Cancer Foundation and Center, Amman, Jordan
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Helicobacter pylori seroprevalence in Spain: influence of adult and childhood sociodemographic factors. Eur J Cancer Prev 2020; 28:294-303. [PMID: 30489354 DOI: 10.1097/cej.0000000000000483] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Helicobacter pylori (H. pylori) chronic infection causes severe digestive diseases, including gastric cancer, and certain strains entail a higher risk. Risk factors for this infection are still not fully understood. The aim of this study was to describe the association of adult and childhood sociodemographic factors with the seroprevalence of H. pylori, and with CagA and VacA antigen-specific seropositivity among H. pylori-seropositive individuals in the Spanish adult population. Serum antibody reactivity to H. pylori proteins was evaluated using multiplex serology in 2555 population-based controls enrolled in the MCC-Spain study, a multicase-control study recruiting participants from 2008 to 2013 in different areas of Spain. H. pylori seroprevalence was defined as seropositivity against at least four bacterial proteins. Information on sociodemographics, lifestyles, and environmental exposures was collected through personal interviews. Prevalence ratios and 95% confidence intervals were estimated using Poisson regression models to assess the association of lifetime sociodemographic factors with H. pylori seroprevalence and with seropositivity for CagA and VacA. H. pylori seroprevalence was 87.2%. Seropositivity was statistically significantly higher in men, increased with age, BMI, and number of siblings, and decreased with education and socioeconomic family level at birth. Among H. pylori-seropositive individuals, seropositivity was 53.3% for CagA, 61.4% for VacA, and 38.8% for both CagA and VacA. Ever smokers had lower seroprevalence for CagA and VacA than never smokers. H. pylori seroprevalence among this Spanish adult population was high and one third of the population was seropositive for two well-known markers of gastric cancer risk: CagA and VacA. Sex, age, education, and BMI were associated with H. pylori seroprevalence.
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