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Qiao Z, Wang E, Bao B, Tan X, Yuan L, Wang D. Association of Helicobacter pylori CagA seropositivity with gastric precancerous lesions: a systematic review and meta-analysis. Eur J Gastroenterol Hepatol 2024; 36:687-694. [PMID: 38526941 DOI: 10.1097/meg.0000000000002765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The objective of this meta-analysis is to delineate the association between H. pylori CagA serological status and the prevalence of gastric precancerous lesions (GPL). We searched peer-reviewed articles up to October 2023. The extraction of data from the included studies was carried out as well as the quality assessment. Pooled effect sizes were calculated using a random effect model. Thirteen studies met the inclusion criteria, comprising 2728 patients with GPL and 17 612 controls. The aggregate odds ratio (OR) for the association between serum CagA and GPL was 2.74 (95% CI = 2.25-3.32; P = 0.00; I 2 = 60.4%), irrespective of H. pylori infection status. Within the H. pylori -infected cohort, the OR was 2.25 (95% CI = 1.99-2.56; P = 0.00; I 2 = 0.0%). Conversely, among the non-infected individuals, the OR was 1.63 (95% CI = 1.04-2.54; P = 0.038; I 2 = 0.0%). Heterogeneity was explored using subgroup and meta-regression analyses, indicating that the variability between studies likely stemmed from differences in disease classification. Our results demonstrated robustness and negligible publication bias. The meta-analysis underscores a more pronounced association between H. pylori CagA seropositivity and the risk of developing GPL than between seronegativity and the same risk, irrespective of H. pylori infection status at the time. Additionally, the strength of the association was heightened in the presence of an active H. pylori infection. The implications of these findings advocate for the utility of CagA serostatus as a potential biomarker for screening GPL.
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Affiliation(s)
- Zengyun Qiao
- Department of Hepatobiliary Surgery, Dalian Municipal Central Hospital, Dalian
- Dalian Municipal Central Hospital, China Medical University, Shenyang
| | - Enbo Wang
- Department of Hepatobiliary Surgery, Dalian Municipal Central Hospital, Dalian
| | - Boyang Bao
- Department of Hepatobiliary Surgery, Dalian Municipal Central Hospital, Dalian
- Dalian Municipal Central Hospital, Dalian Medical University, Dalian
| | - Xiaodong Tan
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Liu Yuan
- Department of Hepatobiliary Surgery, Dalian Municipal Central Hospital, Dalian
- Dalian Municipal Central Hospital, China Medical University, Shenyang
| | - Dong Wang
- Department of Hepatobiliary Surgery, Dalian Municipal Central Hospital, Dalian
- Dalian Municipal Central Hospital, China Medical University, Shenyang
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Liu X, Yu H, Yan G, Xu B, Sun M, Feng M. Causal relationships between coffee intake, apolipoprotein B and gastric, colorectal, and esophageal cancers: univariable and multivariable Mendelian randomization. Eur J Nutr 2024; 63:469-483. [PMID: 38040849 DOI: 10.1007/s00394-023-03281-y] [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: 05/17/2023] [Accepted: 11/08/2023] [Indexed: 12/03/2023]
Abstract
PURPOSE Coffee intake and apolipoprotein B levels have been linked to gastric, colorectal, and esophageal cancers in numerous recent studies. However, whether these associations are all causal remains unestablished. This study aimed to assess the potential causal associations of apolipoprotein B and coffee intake with the risk of gastric, colorectal, and esophageal cancers using Mendelian randomization analysis. METHODS In this study, we utilized a two-sample Mendelian randomization analysis to access the causal effects of coffee intake and apolipoprotein B on gastric, colorectal, and esophageal cancers. The summary statistics of coffee intake (n = 428,860) and apolipoprotein B (n = 439,214) were obtained from the UK Biobank. In addition, the summary statistics of gastric cancer, colorectal cancer, and esophageal cancer were obtained from the FinnGen biobank (n = 218,792). Inverse variance weighted, MR-Egger, weighted median, and weighted mode were applied to examine the causal relationship between coffee intake, apolipoprotein B and gastric, colorectal, and esophageal cancers. MR-Egger intercept test, Cochran's Q test, and leave-one-out analysis were performed to evaluate possible heterogeneity and pleiotropy. Steiger filtering and bidirectional mendelian randomization analysis were performed to evaluate the possible reverse causality. RESULTS The result of the inverse variance weighted method indicated that apolipoprotein B levels were significantly associated with a higher risk of gastric cancer (OR = 1.392, 95% CI 1.027-1.889, P = 0.0333) and colorectal cancer (OR = 1.188, 95% CI 1.001-1.411, P = 0.0491). Furthermore, multivariable Mendelian randomization analysis also revealed a positive association between apolipoprotein B levels and colorectal cancer risk, but the effect of apolipoprotein B on gastric cancer risk disappeared after adjustment of coffee intake, body mass index or lipid-related traits. However, we did not discover any conclusive evidence linking coffee intake to gastric, colorectal, or esophageal cancers. CONCLUSIONS This study suggested a causal association between genetically increased apolipoprotein B levels and higher risk of colorectal cancer. No causal relationship was observed between coffee intake and gastric, colorectal, or esophageal cancers.
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Affiliation(s)
- Xingwu Liu
- Department of Gastroenterology, The First Hospital of China Medical University, Shenyang, China
| | - Han Yu
- School of Health Management, China Medical University, Shenyang, China
| | - Guanyu Yan
- Department of Gastroenterology, The First Hospital of China Medical University, Shenyang, China
| | - Boyang Xu
- Department of Gastroenterology, The First Hospital of China Medical University, Shenyang, China
| | - Mingjun Sun
- Department of Gastroenterology, The First Hospital of China Medical University, Shenyang, China
| | - Mingliang Feng
- Department of Endoscopy, The First Hospital of China Medical University, Shenyang, China.
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Li Y, Jiang F, Wu CY, Leung WK. Prevalence and temporal trend of gastric preneoplastic lesions in Asia: A systematic review with meta-analysis. United European Gastroenterol J 2024; 12:139-151. [PMID: 38084663 PMCID: PMC10859711 DOI: 10.1002/ueg2.12507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/20/2023] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Gastric cancer is the fifth most common cancer globally, with about 75% of cases occurring in Asia. While chronic atrophic gastritis (CAG) and intestinal metaplasia (IM) are well-recognized preneoplastic gastric lesions, we determined the prevalence and temporal trend of CAG and IM in Asia over the past 50 years. METHODS In this systematic review and meta-analysis, we searched PubMed, Embase, MEDLINE, Scopus, and Web of Science for studies reporting the prevalence of CAG and IM in Asia (according to the United Nations geoscheme) published between 1970 and 2022. Heterogeneity was assessed by the I2 index and Cochran Q test. We adopted the random effects model to estimate the pooled prevalence and 95% confidence interval (CI). The slope of prevalence was estimated as a function of time in simple linear regression and weighted meta-regression models to demonstrate the temporal trend. Studies that reported the odds ratio (OR) of Helicobacter pylori infection and CAG/IM were analyzed separately to compile a pooled OR with a 95% CI. This study was registered in INPLASY2022120028. RESULTS Of the 81 studies from 19 Asian countries identified, the pooled prevalence for CAG and IM in Asia was 26.1% (95%CI: 22.7-30.0) and 22.9% (95%CI: 19.7-26.6), respectively. Over the past 5 decades, there was a significant decline in the prevalence of IM (slope in adjusted meta-regression models: -0.79 [95%CI: -1.28 to -0.26], P = 0.003), but there was no significant change in the pooled prevalence of CAG. Within Asia, the prevalence varied significantly among different regions. Southern Asia reported the highest pooled prevalence of CAG (42.9%, 95%CI: 27.5%-67.1%), while Western Asia reported the lowest level (12.7%, 95%CI: 5.0%-32.3%). For IM, Eastern Asia reported the highest prevalence (27.1%, 95%CI: 21.1-34.9), with the lowest prevalence reported in Western Asia (3.1%; 95% CI 1.2%-8.0%). H. pylori infection was linked to CAG and IM with OR of 2.16 (95%CI: 2.09-2.22) and 1.64 (95%CI: 1.57-1.72), respectively. CONCLUSION This updated meta-analysis showed that up to 26% of study individuals in Asia harbored preneoplastic gastric lesions. There was a declining temporal trend in the prevalence of IM, but not for CAG, in Asia.
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Affiliation(s)
- Yunhao Li
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Fang Jiang
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Chun Ying Wu
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Health Innovation Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Microbiota Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Translational Research, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Public Health, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Faculty of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Public Health, China Medical University, Taichung, Taiwan
| | - Wai K Leung
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
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Knaze V, Freisling H, Cook P, Heise K, Acevedo J, Cikutovic M, Wagner KH, Marculescu R, Ferreccio C, Herrero R, Park JY. Association between salt intake and gastric atrophy by Helicobacter pylori infection: first results from the Epidemiological Investigation of Gastric Malignancy (ENIGMA). Eur J Nutr 2023; 62:2129-2138. [PMID: 36964250 DOI: 10.1007/s00394-023-03132-w] [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: 08/16/2022] [Accepted: 03/02/2023] [Indexed: 03/26/2023]
Abstract
PURPOSE Gastric atrophy (GA), usually linked to chronic infection with Helicobacter pylori (H. pylori), may over time evolve into gastric malignancy. Besides H. pylori, high salt intake may play a role in GA development. This study evaluates cross sectionally the association between salt intake and GA in Chilean adults. METHODS Population-based samples were recruited from two sites, Antofagasta and Valdivia, partaking in the Epidemiological Investigation of Gastric Malignancies. At recruitment, participants answered questionnaires and provided biospecimens. Salt intake (g/day) was estimated from casual spot urine samples using the Tanaka equation. GA was determined by serum pepsinogen levels. Only participants ≥ 40 to 70 years of age were considered in this analysis, n = 565. For the association between salt intake (as sex-specific quartiles) and GA, odds ratios (ORs) and the corresponding 95% confidence intervals (CI) were estimated through multivariable logistic regression. RESULTS In women, the multivariable-adjusted OR for GA comparing quartile 4 of the estimated salt intake (12.8 g/day) to quartile 1 (6.6 g/day) was 1.18 (95% CI 0.52-2.68, P-trend = 0.87). The corresponding OR in men was 0.49 (95% CI 0.19-1.27, P-trend = 0.17) with salt intakes of 12.8 g/day and 7.1 g/day for quartiles 4 and 1, respectively. CONCLUSION There was little evidence for an association between salt intake estimated from spot urine and GA risk in our cross-sectional analysis of middle aged and older adults in Chile. Reverse causation bias cannot be ruled out and the sample size was limited to provide more precise estimates.
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Affiliation(s)
- Viktoria Knaze
- Early Detection, Prevention and Infections Branch, International Agency for Research On Cancer (IARC/WHO), Lyon, France
| | - Heinz Freisling
- Nutrition and Metabolism Branch, International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Paz Cook
- Pontificia Universidad Católica de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases, ACCDiS, Santiago, Chile
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - Katy Heise
- Hospital Cancer Registry, Hospital Base Valdivia, Valdivia, Chile
| | | | - Marcos Cikutovic
- Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile
| | - Karl-Heinz Wagner
- Department of Nutritional Sciences and Research Platform Active Ageing, University of Vienna, Vienna, Austria
| | - Rodrig Marculescu
- Division of Medical-Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Rolando Herrero
- Early Detection, Prevention and Infections Branch, International Agency for Research On Cancer (IARC/WHO), Lyon, France
- Agencia Costarricense de Investigaciones Biomédicas, Fundacion INCIENSA, San José, Costa Rica
| | - Jin Young Park
- Early Detection, Prevention and Infections Branch, International Agency for Research On Cancer (IARC/WHO), Lyon, France.
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Razuka-Ebela D, Polaka I, Daugule I, Parshutin S, Santare D, Ebela I, Rudzite D, Vangravs R, Herrero R, Young Park J, Leja M. Lifestyle and dietary factors associated with serologically detected gastric atrophy in a Caucasian population in the GISTAR study. Eur J Cancer Prev 2022; 31:442-450. [PMID: 35131967 DOI: 10.1097/cej.0000000000000723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To identify dietary and lifestyle factors associated with decreased pepsinogen levels indicative of gastric atrophy. METHODS Participants aged 40 to 64 from the "Multicentric randomized study of H. pylori eradication and pepsinogen testing for prevention of gastric cancer mortality (GISTAR study)" in Latvia tested for serum pepsinogen, as well as for Helicobacter pylori infection by 13 C-urea breath test or serology were included. Data on sex, age, education, employment, diet, smoking, alcohol and proton pump inhibitor use were obtained by survey and compared for participants with and without serologically detected gastric atrophy defined as pepsinogen I/pepsinogen II ≤ 2 and pepsinogen I ≤ 30 ng/mL. RESULTS Of 3001 participants (median age 53, interquartile range, 11.0, 36.9% male) 52.8% had H. pylori and 7.7% had serologically detected gastric atrophy. In multivariate analysis, increasing age, consumption of alcohol, coffee, and onions were positively, while H. pylori , former smoking, pickled product and proton pump inhibitor use were inversely associated with gastric atrophy. Pepsinogen values were higher in smokers and those with H. pylori . Pepsinogen ratio was lower in those with H. pylori . When stratifying by H. pylori presence, significantly higher pepsinogen levels remained for smokers without H. pylori . CONCLUSION Several dietary factors and smoking were associated with serologically detected gastric atrophy. Pepsinogen levels differed by smoking and H. pylori status, which may affect the serologic detection of gastric atrophy. There seems to be a complicated interaction between multiple factors. A prospective study including atrophy determined by both serology and histology is necessary.
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Affiliation(s)
- Danute Razuka-Ebela
- Faculty of Medicine
- Institute of Clinical and Preventive Medicine, University of Latvia
| | - Inese Polaka
- Institute of Clinical and Preventive Medicine, University of Latvia
| | - Ilva Daugule
- Faculty of Medicine
- Institute of Clinical and Preventive Medicine, University of Latvia
| | - Sergei Parshutin
- Institute of Clinical and Preventive Medicine, University of Latvia
| | - Daiga Santare
- Faculty of Medicine
- Institute of Clinical and Preventive Medicine, University of Latvia
| | | | - Dace Rudzite
- Institute of Clinical and Preventive Medicine, University of Latvia
- Riga East University Hospital, Riga, Latvia
| | - Reinis Vangravs
- Institute of Clinical and Preventive Medicine, University of Latvia
| | - Rolando Herrero
- International Agency for Research on Cancer, Lyon, France
- Agencia Costarricense de Investigaciones Biomedicas, Fundación INCIENSA, Costa Rica
| | - Jin Young Park
- International Agency for Research on Cancer, Lyon, France
| | - Marcis Leja
- Faculty of Medicine
- Institute of Clinical and Preventive Medicine, University of Latvia
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Association between the Dietary Inflammatory Index and Gastric Disease Risk: Findings from a Korean Population-Based Cohort Study. Nutrients 2022; 14:nu14132662. [PMID: 35807849 PMCID: PMC9268659 DOI: 10.3390/nu14132662] [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: 05/20/2022] [Revised: 06/23/2022] [Accepted: 06/23/2022] [Indexed: 02/05/2023] Open
Abstract
Evidence suggests that diets with high pro-inflammatory potential may play a substantial role in the origin of gastric inflammation. This study aimed to examine the association between the energy-adjusted dietary inflammatory index (E-DIITM) and gastric diseases at baseline and after a mean follow-up of 7.4 years in a Korean population. A total of 144,196 participants from the Korean Genome and Epidemiology Study_Health Examination (KoGES_HEXA) cohort were included. E-DII scores were computed using a validated semi-quantitative food frequency questionnaire. Multivariate logistic regression and Cox proportional hazards regression were used to assess the association between the E-DII and gastric disease risk. In the prospective analysis, the risk of developing gastric disease was significantly increased among individuals in the highest quartile of E-DII compared to those in the lowest quartile (HRquartile4vs1 = 1.22; 95% CI = 1.08–1.38). Prospective analysis also showed an increased risk in the incidence of gastritis (HRquartile4vs1 = 1.19; 95% CI = 1.04–1.37), gastric ulcers (HRquartile4vs1 = 1.47; 95% CI = 1.16–1.85), and gastric and duodenal ulcers (HRquartile4vs1 = 1.46; 95% CI = 1.17–1.81) in the highest E-DII quartile compared to the lowest quartile. In the cross-sectional analysis, the E-DII score was not associated with the risk of gastric disease. Our results suggest that a pro-inflammatory diet, indicated by high E-DII scores, is prospectively associated with an increased risk of gastric diseases. These results highlight the significance of an anti-inflammatory diet in lowering the risk of gastric disease risk in the general population.
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Herrero R, Heise K, Acevedo J, Cook P, Gonzalez C, Gahona J, Cortés R, Collado L, Beltrán ME, Cikutovic M, Gonzalez P, Murillo R, Leja M, Megraud F, Hernandez MDLL, Barbier S, Park JY, Ferreccio C. Regional variations in Helicobacter pylori infection, gastric atrophy and gastric cancer risk: The ENIGMA study in Chile. PLoS One 2020; 15:e0237515. [PMID: 32898138 PMCID: PMC7478833 DOI: 10.1371/journal.pone.0237515] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 07/28/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Regional variations in gastric cancer incidence are not explained by prevalence of Helicobacter pylori, the main cause of the disease, with several areas presenting high H. pylori prevalence but low gastric cancer incidence. The IARC worldwide H. pylori prevalence surveys (ENIGMA) aim at systematically describing age and sex-specific prevalence of H. pylori infection around the world and generating hypotheses to explain regional variations in gastric cancer risk. METHODS We selected age- and sex-stratified population samples in two areas with different gastric cancer incidence and mortality in Chile: Antofagasta (lower rate) and Valdivia (higher rate). Participants were 1-69 years old and provided interviews and blood for anti-H. pylori antibodies (IgG, VacA, CagA, others) and atrophy biomarkers (pepsinogens). RESULTS H. pylori seroprevalence (Age-standardized to world population) and antibodies against CagA and VacA were similar in both sites. H. pylori seroprevalence was 20% among children <10 years old, 40% among 10-19 year olds, 60% in the 20-29 year olds and close to or above 80% in those 30+ years. The comparison of the prevalence of known and potential H. pylori cofactors in gastric carcinogenesis between the high and the low risk area showed that consumption of chili products was significantly higher in Valdivia and daily non-green vegetable consumption was more common in Antofagasta. Pepsinogen levels suggestive of gastric atrophy were significantly more common and occurred at earlier ages in Valdivia, the higher risk area. In a multivariate model combining both study sites, age, chili consumption and CagA were the main risk factors for gastric atrophy. CONCLUSIONS The prevalence of H. pylori infection and its virulence factors was similar in the high and the low risk area, but atrophy was more common and occurred at younger ages in the higher risk area. Dietary factors could partly explain higher rates of atrophy and gastric cancer in Valdivia. IMPACT The ENIGMA study in Chile contributes to better understanding regional variations in gastric cancer incidence and provides essential information for public health interventions.
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Affiliation(s)
- Rolando Herrero
- International Agency for Research on Cancer, Lyon, France
- Agencia Costarricense de Investigaciones Biomédicas, Fundación INCIENSA, Costa Rica
| | - Katy Heise
- Hospital Cancer Registry, Hospital Base Valdivia, Valdivia, Chile
| | | | - Paz Cook
- Public Health Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases, ACCDis, Santiago, Chile
| | - Claudia Gonzalez
- Secretaría Regional Ministerial de Salud, Antofagasta Region, Chile
| | - Jocelyne Gahona
- Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile
| | - Raimundo Cortés
- Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile
| | - Luis Collado
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | | | - Marcos Cikutovic
- Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile
| | - Paula Gonzalez
- Agencia Costarricense de Investigaciones Biomédicas, Fundación INCIENSA, Costa Rica
| | - Raul Murillo
- International Agency for Research on Cancer, Lyon, France
| | - Marcis Leja
- Institute of Clinical and Preventive Medicine, University of Latvia, Riga, Latvia
| | - Francis Megraud
- Bordeaux University, INSERM, UMR1053, BaRITOn, Team 2 "Helicobacter Infection, Inflammation and Cancer", Bordeaux, France
- Pellegrin University Hospital, Bacteriology Laboratory, French National Reference Center for Campylobacters and Helicobacters, Bordeaux, France
| | | | | | - Jin Young Park
- International Agency for Research on Cancer, Lyon, France
| | - Catterina Ferreccio
- Public Health Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases, ACCDis, Santiago, Chile
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Scheidl E, Benz C, Loeff P, Groneck V, König A, Schulte-Fischedick A, Lück H, Fuhr U. Frequency and Types of Pathological Upper Gastrointestinal Endoscopy Findings in Clinically Healthy Individuals. Drugs R D 2020; 20:115-124. [PMID: 32335854 PMCID: PMC7221033 DOI: 10.1007/s40268-020-00303-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Beyond its application for diagnostics in patients, esophagogastroduodenoscopy (EGD) is used to assess gastrointestinal drug effects in clinical trials, where the interpretation of any pathological findings depends on the respective background variability. The objective of this analysis was to characterize the occurrence of pathological findings in the upper gastrointestinal tract in symptom-free healthy individuals. METHODS A baseline EGD was performed in clinically healthy individuals in three clinical trials aimed to assess gastrointestinal tolerability of drugs. Pathological findings were described by type (redness, erosion, ulcer or other), number, size and location, and by clinical relevance as assessed by the endoscopist. Characteristics of volunteers were tested as potential covariates. RESULTS A total of 294 EGDs were assessed. Characteristics of individuals were as follows: 257 (87.4%) males, age (mean ± SD) 32.0 ± 8.1 years, body weight 76.0 ± 10.6 kg, body mass index (BMI) 24.0 ± 2.5 kg/m2, 200 consumed alcohol, 250 (of 290 where this information was available) consumed caffeine and 39 (of 152) were smokers, 30 (of 151) tested positive for H. pylori. Any pathological finding was present in 79.6%. Clinically relevant findings occurred in 44.2%, mainly erosions (39.1%). Nine stomach ulcers were observed. Only age and BMI had a statistically significant relationship to overall pathological findings [age 3.4 years higher (p = 0.027), and BMI 1.6 kg/m2 higher (p < 0.001); for clinically relevant vs no findings]. CONCLUSION Upper gastrointestinal tract mucosal lesions, including those assessed as clinically relevant, are frequent in clinically healthy individuals, impeding the assessment of causality for both disease and drug effects on gastrointestinal health.
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Affiliation(s)
- Elisabeth Scheidl
- Clinical Pharmacology Unit, Department I of Pharmacology, Center for Pharmacology, University Hospital Cologne (AöR), Gleueler Straße 24, 50931, Köln, Germany
- ITECRA GmbH & Co. KG, Köln, Germany
| | - Claus Benz
- Department of Gastroenterology, Ev. Krankenhaus Köln-Weyertal, Köln, Germany
| | - Peter Loeff
- Department of Gastroenterology, Ev. Krankenhaus Köln-Weyertal, Köln, Germany
| | - Volker Groneck
- Department of Gastroenterology, Ev. Krankenhaus Köln-Weyertal, Köln, Germany
| | - Andreas König
- Department of Gastroenterology, Ev. Krankenhaus Köln-Weyertal, Köln, Germany
| | | | | | - Uwe Fuhr
- Clinical Pharmacology Unit, Department I of Pharmacology, Center for Pharmacology, University Hospital Cologne (AöR), Gleueler Straße 24, 50931, Köln, Germany.
- ITECRA GmbH & Co. KG, Köln, Germany.
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Abstract
Introduction: Atrophic gastritis (AG) is a complex syndrome which arises as a consequence of H. pylori infection or in the context of gastric autoimmunity. It often deserves a benign course but may lead to potentially life-threatening complications: cancer and anemia. This review aims to address traditional and innovative knowledge on this often under-diagnosed disorder.Areas covered: This review covers clinical presentation, risk factors, diagnosis, and management of AG and provides an updated resource for clinicians to get insight into this challenging disorder. Updated literature was searched in PubMed. Manual search from reference lists of publications was performed.Expert opinion: A case-finding strategy may be beneficial in individuals with anemia, dyspepsia, autoimmune thyropaties and type 1 diabetes, and family history of gastric cancer. AG is linked to gastric cancer risk and endoscopic surveillance is indicated according to topography of gastric atrophy and risk factors. The direction for future research in AG is summarized.
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Affiliation(s)
- Bruno Annibale
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Roma, Italy
| | - Gianluca Esposito
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Roma, Italy
| | - Edith Lahner
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Roma, Italy
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Lahner E, Zagari RM, Zullo A, Di Sabatino A, Meggio A, Cesaro P, Lenti MV, Annibale B, Corazza GR. Chronic atrophic gastritis: Natural history, diagnosis and therapeutic management. A position paper by the Italian Society of Hospital Gastroenterologists and Digestive Endoscopists [AIGO], the Italian Society of Digestive Endoscopy [SIED], the Italian Society of Gastroenterology [SIGE], and the Italian Society of Internal Medicine [SIMI]. Dig Liver Dis 2019; 51:1621-1632. [PMID: 31635944 DOI: 10.1016/j.dld.2019.09.016] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/03/2019] [Accepted: 09/23/2019] [Indexed: 02/08/2023]
Abstract
Chronic atrophic gastritis (CAG) is an underdiagnosed condition characterised by translational features going beyond the strict field of gastroenterology as it may manifest itself by a variable spectrum of gastric and extra-gastric symptoms and signs. It is relatively common among older adults in different parts of the world, but large variations exist. Helicobacter pylori-related CAG [multifocal] and autoimmune CAG (corpus-restricted) are apparently two different diseases, but they display overlapping features. Patients with cobalamin and/or iron deficiency anaemia or autoimmune disorders, including autoimmune thyroiditis and type 1 diabetes mellitus, should be offered screening for CAG. Pepsinogens, gastrin-17, and anti-H. pylori antibodies serum assays seem to be reliable non-invasive screening tools for the presence of CAG, helpful to identify individuals to refer to gastroscopy with five standard gastric biopsies in order to obtain histological confirmation of diagnosis. Patients with CAG are at increased risk of developing gastric cancer, and they should be estimated with histological staging systems (OLGA or OLGIM). H. pylori eradication may be beneficial by modifying the natural history of atrophy, but not that of intestinal metaplasia. Patients with advanced stages of CAG (Stage III/IV OLGA or OLGIM) should undergo endoscopic surveillance every three years, those with autoimmune CAG every three-five years. In patients with CAG, a screening for autoimmune thyroid disease and micronutrient deficiencies, including iron and vitamin B12, should be performed. The optimal treatment for dyspeptic symptoms in patients with CAG remains to be defined. Proton pump inhibitors are not indicated in hypochlorhydric CAG patients.
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Affiliation(s)
- Edith Lahner
- Department of Surgical-Medical Sciences and Translational Medicine, Digestive and Liver Disease Unit, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy.
| | | | - Angelo Zullo
- Gastroenterology and Digestive Endoscopy, 'Nuovo Regina Margherita' Hospital, Rome, Italy
| | - Antonio Di Sabatino
- First Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Alberto Meggio
- Department of Gastroenterology, Trento and Rovereto Hospital, Trento, Italy
| | - Paola Cesaro
- Digestive Endoscopy Unit and Gastroenterology, Fondazione Poliambulanza, Brescia, Italy
| | - Marco Vincenzo Lenti
- First Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Bruno Annibale
- Department of Surgical-Medical Sciences and Translational Medicine, Digestive and Liver Disease Unit, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Gino Roberto Corazza
- First Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
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Venneman K, Huybrechts I, Gunter MJ, Vandendaele L, Herrero R, Van Herck K. The epidemiology of Helicobacter pylori infection in Europe and the impact of lifestyle on its natural evolution toward stomach cancer after infection: A systematic review. Helicobacter 2018; 23:e12483. [PMID: 29635869 DOI: 10.1111/hel.12483] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Helicobacter pylori is a recognized cause of stomach cancer, but only a fraction of infected subjects develop cancer. This systematic review 1, summarizes the prevalence of infection with this bacterium in Europe; and 2, reviews the possible impact of particular lifestyles in progression from infection to stomach cancer. MATERIALS AND METHODS A systematic literature search was conducted in two databases by two independent investigators. Studies describing prevalence of infection among European healthy adult populations and worldwide studies analyzing the impact of lifestyle factors in association with H. pylori on stomach cancer risk were included. RESULTS Variable H. pylori infection prevalence was observed depending on region and study period. The lowest infection prevalences were found in Northern Europe, while the highest were in Eastern and Southern Europe, up to 84% in Portugal and Poland. Studies on smoking, salt, and meat consumption demonstrated increased risks of developing stomach cancer among H. pylori-infected individuals, while studies relating the intake of fruit, vegetables, and vitamins demonstrated decreased risks, but the levels of significance differed importantly between studies. No significant interaction could be found for alcohol consumption or physical activity. CONCLUSIONS Recent data showed remaining high H. pylori infection rates in several European regions. This systematic review suggests that a number of correctable lifestyle factors could impact the disease progression toward H. pylori-associated stomach cancer. However, additional research is required to determine the potential role of targeted interventions in reducing stomach cancer development after H. pylori infection.
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Affiliation(s)
- Kimberly Venneman
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Inge Huybrechts
- International Agency for Research on Cancer, Nutrition and Metabolism Section, Lyon, France
| | - Marc J Gunter
- International Agency for Research on Cancer, Nutrition and Metabolism Section, Lyon, France
| | - Lieve Vandendaele
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Rolando Herrero
- International Agency for Research on Cancer, Early Detection and Prevention Section, Lyon, France
| | - Koen Van Herck
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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12
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Park JY, Forman D, Waskito LA, Yamaoka Y, Crabtree JE. Epidemiology of Helicobacter pylori and CagA-Positive Infections and Global Variations in Gastric Cancer. Toxins (Basel) 2018; 10:E163. [PMID: 29671784 PMCID: PMC5923329 DOI: 10.3390/toxins10040163] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/10/2018] [Accepted: 04/10/2018] [Indexed: 12/11/2022] Open
Abstract
Gastric cancer is a major health burden and is the fifth most common malignancy and the third most common cause of death from cancer worldwide. Development of gastric cancer involves several aspects, including host genetics, environmental factors, and Helicobacter pylori infection. There is increasing evidence from epidemiological studies of the association of H. pylori infection and specific virulence factors with gastric cancer. Studies in animal models indicate H. pylori is a primary factor in the development of gastric cancer. One major virulence factor in H. pylori is the cytotoxin-associated gene A (cagA), which encodes the CagA protein in the cag pathogenicity island (cag PAI). Meta-analysis of studies investigating CagA seropositivity irrespective of H. pylori status identified that CagA seropositivity increases the risk of gastric cancer (OR = 2.87, 95% CI: 1.95⁻4.22) relative to the risk of H. pylori infection alone (OR = 2.31, 95% CI: 1.58⁻3.39). Eradicating H. pylori is a strategy for reducing gastric cancer incidence. A meta-analysis of six randomised controlled trials (RCTs) suggests that searching for and eradicating H. pylori infection reduces the subsequent incidence of gastric cancer with a pooled relative risk of 0.66 (95% CI: 0.46⁻0.95). The introduction in regions of high gastric cancer incidence of population-based H. pylori screening and treatment programmes, with a scientifically valid assessment of programme processes, feasibility, effectiveness and possible adverse consequences, would impact the incidence of H. pylori-induced gastric cancer. Given the recent molecular understanding of the oncogenic role of CagA, targeting H. pylori screening and treatment programmes in populations with a high prevalence of H. pylori CagA-positive strains, particularly the more oncogenic East Asian H. pylori CagA strains, may be worth further investigation to optimise the benefits of such strategies.
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Affiliation(s)
- Jin Young Park
- International Agency for Research on Cancer, 69372 Lyon, France.
| | - David Forman
- International Agency for Research on Cancer, 69372 Lyon, France.
| | - Langgeng Agung Waskito
- Institute of Tropical Disease, Universitas Airlangga, Surabaya 60113, Indonesia.
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Oita 879-5503, Japan.
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Oita 879-5503, Japan.
- Department of Medicine-Gastroenterology, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX 77030, USA.
| | - Jean E Crabtree
- Leeds Institute Biomedical and Clinical Sciences, Wellcome Trust Brenner Building, St. James's University Hospital, University of Leeds, Leeds LS9 7TF, UK.
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Nishizawa T, Suzuki H, Sakitani K, Yamashita H, Yoshida S, Hata K, Kanazawa T, Fujiwara N, Kanai T, Yahagi N, Toyoshima O. Family history is an independent risk factor for the progression of gastric atrophy among patients with Helicobacter pylori infection. United European Gastroenterol J 2016; 5:32-36. [PMID: 28405319 DOI: 10.1177/2050640616642341] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/08/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND AIM Risk factors for progression of gastric atrophy have not been fully elucidated. The aim of this study was to evaluate the risk factors for the development of atrophic gastritis in patients with Helicobacter pylori (H. pylori ) infection. METHODS We reviewed 206 H. pylori-infected patients retrospectively. Endoscopic gastric atrophy was classified into closed- and open-type. We conducted univariate and multivariate logistic regression analyses on the contribution of age, sex, body mass index, past history of cancer, the first-degree family history of gastric cancer, habitual smoking and alcohol drinking, and endoscopic findings of gastric ulcer or duodenal ulcer for open-type gastric atrophy. RESULTS On multivariate analysis, age (odds ratio = 1.079, 95% confidence interval = 1.048-1.11, p < 0.001), family history of gastric cancer (odds ratio = 3.967, 95% confidence interval = 1.414-10.6, p = 0.006) and duodenal ulcer (odds ratio = 0.834, 95% confidence interval = 0.711-0.977, p = 0.024) were the factors independently associated with open-type gastric atrophy. CONCLUSIONS A first-degree family history of gastric cancer, absence of duodenal ulcer, and old age were independent risk factors for the progression of gastric atrophy among H. pylori-infected patients. Careful examination with upper gastrointestinal endoscopy is necessary in patients with such risk factors.
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Affiliation(s)
- Toshihiro Nishizawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan; Division of Gastroenterology and Hepatology, Department Of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hidekazu Suzuki
- Medical Education Center, Keio University School of Medicine, Tokyo, Japan
| | - Kosuke Sakitani
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Division of Gastroenterology, The Institute for Adult Disease, Asahi Life Foundation, Tokyo, Japan
| | - Hiroharu Yamashita
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Department of Gastrointestinal Surgery, The University of Tokyo, Tokyo, Japan
| | - Shuntaro Yoshida
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keisuke Hata
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Takamitsu Kanazawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan; Department of Surgery, The Fraternity Memorial Hospital, Tokyo, Japan
| | - Naoto Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department Of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
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Barakat G, Nabiel Y, Ali O, El-Nady G, Musaad A, El-Sharkawy A. UreA and cagA genes of Helicobacter pylori in Egyptian patients with laryngeal squamous cell carcinoma and benign laryngeal polyps: a cohort study. Eur Arch Otorhinolaryngol 2016; 273:3243-8. [PMID: 27225283 DOI: 10.1007/s00405-016-4114-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 05/20/2016] [Indexed: 02/06/2023]
Abstract
This work aims to estimate the prevalence of Helicobacter pylori ureA gene and evaluate cagA gene-positive strains in both patients of laryngeal squamous cell carcinoma (LSCC) and those with benign laryngeal polyps. This study included 49 patients confirmed pathologically to have LSCC and 15 patients with benign laryngeal polyps over a period from June 2013 to March 2015. Samples of laryngeal tissue were collected during direct laryngoscope under general anesthesia to be pathologically evaluated followed by analysis for H. pylori detection. Each laryngeal tissue sample was divided into three parts; one for bacteriological examination, the second for pathological examination and the third for PCR to detect both ureA and cagA genes. Out of 49 LSCC samples, 31 (64.6 %) was positive for ureA by PCR. Out of them, 29 samples (93.5 %) were cagA positive. Only three cases (20 %) of the benign laryngeal polyp were ureA positive by PCR and one of them was cagA positive by PCR. By the bacteriological culture, only eight samples (25.8 %) gave growth. All of them were ureA positive and only seven of them were cagA positive. There was a significant association between presence of H. pylori and LSCC as compared to benign laryngeal polyp which may contribute in the pathogenesis of laryngeal carcinoma. These results should be confirmed by further studies over larger number of cases.
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Affiliation(s)
- Ghada Barakat
- Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
| | - Yasmin Nabiel
- Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Omima Ali
- Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ghada El-Nady
- Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ahmed Musaad
- Otorhinolarngology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Asser El-Sharkawy
- Otorhinolarngology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Patel SK, Pratap CB, Jain AK, Gulati AK, Nath G. Diagnosis of Helicobacter pylori: What should be the gold standard? World J Gastroenterol 2014; 20:12847-12859. [PMID: 25278682 PMCID: PMC4177467 DOI: 10.3748/wjg.v20.i36.12847] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 02/10/2014] [Accepted: 06/26/2014] [Indexed: 02/06/2023] Open
Abstract
Since the discovery of Helicobacter pylori (H. pylori) in 1983, numerous detection methods for the presence of the bacterium have been developed. Each one of them has been associated with advantages and disadvantages. Noninvasive tests such as serology, 13C urea breath test (UBT) and stool antigen tests are usually preferred by the clinicians. Serology has its own limitation especially in endemic areas while 13C UBT is technically very demanding. The stool antigen detection method, although specific, is usually associated with poor sensitivity. The 13C UBT is believed to be specific, but with present revelation of the fact that stomach is colonized by many other urease producing bacteria makes it questionable. Histology, culture, rapid urease test and polymerase chain reaction (PCR) are the tests which are carried out on antral biopsies collected by invasive means. Histology has been proposed to be very sensitive and specific but the question is how by simply looking the morphology of the bacteria in the microscope, one can claim that the curved bacterium is exclusively H. pylori. Rapid urease test (RUT), the doctor’s test, is also challenged because the presence of other urease producing bacteria in the stomach cannot be denied. Moreover, RUT has been reported with poor sensitivity specially, when density of the bacterium is low. Isolation of H. pylori is essential to investigate its growth requirements, antibiotic susceptibility testing, studying virulence factor to develop vaccine and many more explorations. It has also got several disadvantages i.e., special condition for transporting, media, incubation and few days waiting for the colonies to appear, apart from the speed essentially needed to process the specimens. Till date, majority of the microbiological laboratories in the world are not equipped and trained to isolate such fastidious bacterium. The option left is PCR methods to detect H. pylori’s DNA in gastric mucosa, gastric juice, saliva, dental plaques and environmental specimens. There are speculations for false positivity due to detection of non-pylori Helicobacters due to genetic sharing; and false negativity due to low bacterial counts and presence of PCR inhibitors. However, specimen collection, transportation and processing do not require speed and special conditions. PCR based diagnosis may be considered as gold standard by designing primers extremely specific to H. pylori and targeting at least more than one conserved genes. Similarly specificity of PCR may be improved by use of internal Primers. Further, nested PCR will take care of false negatives by countering the effect of PCR inhibitors and low bacterial counts. Therefore, nested PCR based methods if performed properly, may be proposed as gold standard test.
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16
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Gao QY, Wang ZH, Cui Y, Sheng JQ, Zhang KH, Shi RH, Xu JM, Chen WC, Zuo XL, Li SD, Chen YX, Song YY, Fang JY. Evaluation and clinical significance of the stomach age model for evaluating aging of the stomach-a multicenter study in China. BMC Clin Pathol 2014; 14:29. [PMID: 25057261 PMCID: PMC4096444 DOI: 10.1186/1472-6890-14-29] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Accepted: 06/23/2014] [Indexed: 01/26/2023] Open
Abstract
Background A higher prevalence of chronic atrophic gastritis (CAG) occurs in younger adults in Asia. We used Stomach Age to examine the different mechanisms of CAG between younger adults and elderly individuals, and established a simple model of cancer risk that can be applied to CAG surveillance. Methods Stomach Age was determined by FISH examination of telomere length in stomach biopsies. Δψm was also determined by flow cytometry. Sixty volunteers were used to confirm the linear relationship between telomere length and age while 120 subjects were used to build a mathematical model by a multivariate analysis. Overall, 146 subjects were used to evaluate the validity of the model, and 1,007 subjects were used to evaluate the relationship between prognosis and Δage (calculated from the mathematical model). ROC curves were used to evaluate the relationship between prognosis and Δage and to determine the cut-off point for Δage. Results We established that a tight linear relationship between the telomere length and the age. The telomere length was obvious different between patients with and without CAG even in the same age. Δψm decreased in individuals whose Stomach Age was greater than real age, especially in younger adults. A mathematical model of Stomach Age (real age + Δage) was successfully constructed which was easy to apply in clinical work. A higher Δage was correlated with a worse outcome. The criterion of Δage >3.11 should be considered as the cut-off to select the subgroup of patients who require endoscopic surveillance. Conclusion Variation in Stomach Age between individuals of the same biological age was confirmed. Attention should be paid to those with a greater Stomach Age, especially in younger adults. The Δage in the Simple Model can be used as a criterion to select CAG patients for gastric cancer surveillance.
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Affiliation(s)
- Qin-Yan Gao
- GI Division, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai Institution of Digestive Disease, 145 Middle Shandong Rd, Shanghai 200001, China ; Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai Jiao-Tong University, 145 Middle Shandong Rd, Shanghai 200001, China ; State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd, Shanghai 200001, China
| | - Zhen-Hua Wang
- GI Division, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai Institution of Digestive Disease, 145 Middle Shandong Rd, Shanghai 200001, China ; Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai Jiao-Tong University, 145 Middle Shandong Rd, Shanghai 200001, China ; State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd, Shanghai 200001, China
| | - Yun Cui
- GI Division, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai Institution of Digestive Disease, 145 Middle Shandong Rd, Shanghai 200001, China ; Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai Jiao-Tong University, 145 Middle Shandong Rd, Shanghai 200001, China ; State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd, Shanghai 200001, China
| | - Jian-Qiu Sheng
- The Military General Hospital of Beijing PLA, 5 East sishitiao nanmencang, Beijing 100700, China
| | - Kun-He Zhang
- The First Affiliated Hospital of NanChang University, 17 Yongwaizheng Street, Nanchang 330006, China
| | - Rui-Hua Shi
- The First Affiliated Hospital of NanJing Medical University, 300 Guangzhou Rd, Nanjing 210029, China
| | - Jian-Ming Xu
- The First Affiliated Hospital of Anhui University, 218 Jixi Rd, Hefei 230022, China
| | - Wei-Chang Chen
- The First Affiliated Hospital of SooChow University, 188 Shizi Street Suzhou 215006, China
| | - Xiu-Li Zuo
- Qilu Hospital of Shandong University, 107 West Wenhua Rd, Jinan 250012 China
| | - Shu-De Li
- Second Military Medical University Changhai Hospital, 168 Changhai Rd, Shanghai 200433, China
| | - Yue-Xiang Chen
- Second Military Medical University Changzheng Hospital, 415 Fengyang Rd, Shanghai 200003, China
| | - Yan-Yan Song
- Department of Statistics, Shanghai Jiao-Tong University School of Medicine, 227 South Chongqing Rd, Shanghai 200025, China
| | - Jing-Yuan Fang
- GI Division, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai Institution of Digestive Disease, 145 Middle Shandong Rd, Shanghai 200001, China ; Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai Jiao-Tong University, 145 Middle Shandong Rd, Shanghai 200001, China ; State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd, Shanghai 200001, China
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Ki MR, Hwang M, Kim AY, Lee EM, Lee EJ, Lee MM, Sung SE, Kim SH, Lee HS, Jeong KS. Role of vacuolating cytotoxin VacA and cytotoxin-associated antigen CagA of Helicobacter pylori in the progression of gastric cancer. Mol Cell Biochem 2014; 396:23-32. [DOI: 10.1007/s11010-014-2138-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/17/2014] [Indexed: 12/28/2022]
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Abstract
Alterations of the stomach mucosa in response to different adverse effects result in various morphological and clinical symptoms. Gastric mucosa alterations can be classified on the bases of diverse viewpoints. It makes this overview difficult, that identical toxic effects may cause different mucosal changes and different toxic agents may produce similar mucosal appearance. The more accurate understanding of the pathological processes which develop in the stomach mucosa needs reconsideration. The authors make an attempt to define gastritis and gastropathy in order to classify and present their features. Gastritis is a histological definition indicating mucosal inflammation. Acute gastritis is caused by infections. The two most important forms of chronic gastritis are metaplastic atrophic gastritis with an autoimmune origin and Helicobacter pylori inflammation. Gastropathy is the name of different structural alterations of the mucosa. Its most important feature is the paucity of inflammatory signs. Gastropathies can be divided into 4 categories based on the nature of the underlying pathological effect, on its morphological appearance and the way of the development. Differential diagnosis is an important pathological and clinical task because different treatment methods and prognosis.
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Affiliation(s)
- Emese Mihály
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
| | - Tamás Micsik
- Semmelweis Egyetem, Általános Orvostudományi Kar I. Patológiai és Kísérleti Rákkutató Intézet Budapest
| | - Márk Juhász
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
| | - László Herszényi
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
| | - Zsolt Tulassay
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088 Semmelweis Egyetem, Általános Orvostudományi Kar MTA-SE Molekuláris Medicina Kutatócsoport Budapest
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Bidel S, Tuomilehto J. The Emerging Health Benefits of Coffee with an Emphasis on Type 2 Diabetes and Cardiovascular Disease. EUROPEAN ENDOCRINOLOGY 2013; 9:99-106. [PMID: 29922362 PMCID: PMC6003581 DOI: 10.17925/ee.2013.09.02.99] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/20/2013] [Indexed: 12/19/2022]
Abstract
Debate persists whether coffee is beneficial or problematic for human health. Coffee consumption has been associated with a decrease in risk of developing type 2 diabetes, and numerous epidemiological studies have demonstrated that healthy, habitual coffee drinkers are more protected from the risk of contracting diabetes than individuals who do not drink coffee. Coffee consumption has been associated with a reduced incidence of impaired glucose tolerance, hyperglycaemia and insulin sensitivity. Data suggest that several coffee components, such as chlorogenic acids, are involved in the health benefits of coffee. Various mechanisms for this protective effect have been proposed, including effects on incretin release, liver glucose metabolism and insulin sensitivity. Epidemiological data support numerous other health benefits for coffee, including reduced cardiovascular disease (CVD), a protective effect against some neurodegenerative conditions, a favourable effect on liver function and a protective effect against certain cancers These associations are based mainly on observational studies and are currently insufficient to recommend coffee consumption as an interventional strategy for risk reduction in type 2 diabetes and other metabolic diseases While excessive consumption can have adverse effects on some conditions, particularly in terms of sleep quality, these effects vary among individuals and most people do not have any symptoms from coffee drinking. Moderate coffee consumption is associated with no or little risk of severe diseases and may offer substantial health benefits. Thus, coffee is a safe, low-energy beverage and suitable for most adult people.
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Affiliation(s)
- Siamak Bidel
- National institute for Health and Welfare and Hjelt institute, University of Helsinki, Finland
| | - Jaakko Tuomilehto
- Centre for Vascular Prevention, Danube-University Krems, Austria; Red RECAVA Grupo, Hospital Universitario La Paz, Madrid, Spain; King Abdulaziz University, Jeddah, Saudi Arabia; Department of Public Health, University of Helsinki, Finland
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Gao QY, Wang ZH, Chooi EYH, Cui Y, Hu Y, Yang CQ, Liu F, Zheng P, Wang CD, Song YY, Fang JY. A novel model might predict the risk of chronic atrophic gastritis: a multicenter prospective study in China. Scand J Gastroenterol 2012; 47:509-17. [PMID: 22404449 DOI: 10.3109/00365521.2012.658857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To find a new way to predict the risk of chronic atrophic gastritis (CAG). MATERIAL AND METHODS All the participants received endoscopy and histological examination as well as a standard questionnaire. Multivariate analysis was performed by logistic regression to build the CAG risk model. The accuracy was evaluated by 1418 subjects recruited from six medical centers. 63 subjects received another endoscopy after 1-year follow-up and divided into three groups according to the comparison of the histological results (improved, no change and worse). RESULTS The model showed relatively good discrimination, with an AUROC of 0.888 (95% CI 0.852-0.925). A final probability cut-off score of 0.73 was used to predict the presence (>0.73) or absence of CAG (≤0.73). Sensitivity, specificity, PPV and NPV were 82.8%, 74.7%, 91.8% and 56%, respectively. The predicted results of 1418 subjects compared with the histological results were quite similar. There was a significant difference of the scores between three groups who were followed-up for 1 year (F = 3.248, p = 0.046). In multiple comparisons, a significant difference existed between Group A (the histological results had improved after 1-year follow-up) and Group C (the results were worse) (p = 0.019). CONCLUSIONS This is the first demonstration of the use of a mathematical model for CAG risk screening. Endoscopy should be recommended to those who are positive according to the model, to detect CAG early and conserve medical resources. In those who have a high-risk score, closer follow-up is needed.
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Affiliation(s)
- Qin-Yan Gao
- Key Laboratory of Gastroenterology & Hepatology, Ministry of Health-Shanghai Jiao-Tong University, State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd, Shanghai, China
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Akkaya N, Akkaya S, Polat Y, Turk M, Turk T, Ergur S, Sahin F. Helicobacter Pylori Seropositivity in Patients with Postmenopausal Osteoporosis. J Phys Ther Sci 2011. [DOI: 10.1589/jpts.23.61] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Nuray Akkaya
- Department of Physical Medicine and Rehabilitation, Pamukkale University, Medical School
| | - Semih Akkaya
- Department of Orthopedics and Traumatology, Pamukkale University Medical School
| | - Yusuf Polat
- Denizli Clinical Microbiology, Government Hospital
| | - Meral Turk
- Denizli Clinical Parasitology, Government Hospital
| | - Tufan Turk
- Denizli Clinic of Rheumatology, Government Hospital
| | - Sadik Ergur
- Denizli Clinical of Nucleer Medicine, Government Hospital
| | - Fusun Sahin
- Department of Physical Medicine and Rehabilitation, Pamukkale University, Medical School
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22
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Maaroos HI, Vorobjova T. Chronic gastritis develops and progresses over the years under permanent exposure of Helicobacter pylori: is the case different in Mozambican dyspeptic patients? Helicobacter 2009; 14:304-5; author reply 306-8. [PMID: 19674136 DOI: 10.1111/j.1523-5378.2009.00680.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Gao L, Weck MN, Michel A, Pawlita M, Brenner H. Association between chronic atrophic gastritis and serum antibodies to 15 Helicobacter pylori proteins measured by multiplex serology. Cancer Res 2009; 69:2973-80. [PMID: 19318564 DOI: 10.1158/0008-5472.can-08-3477] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Infection with Helicobacter pylori is a major risk factor for chronic atrophic gastritis (CAG), a precursor lesion of intestinal gastric cancer. The pathogenicity of the bacterium is thought to play an important role in determining the extent and severity of clinical outcome. We aimed to assess the associations between CAG and the serostatus of antibodies to 15 H. pylori proteins. The analyses were based on 534 cases with serologically defined CAG and 1,068 age-matched and sex-matched controls participating in a population-based study conducted in Saarland, Germany among 9,953 men and women ages 50 to 74 years. A newly developed H. pylori multiplex serology method was used to detect antibodies specific to 15 H. pylori antigens. Significant associations were observed between seropositivity for all 15 specific antibodies and the presence of CAG. Exclusion of severe cases, who might have lost the infection in the course of CAG progression, substantially increased the observed associations. In H. pylori-seropositive subjects, cytotoxin-associated gene A (CagA), vacuolating toxin (VacA), helicobacter cysteine-rich protein C (HcpC), and the chaperonin GroEL were identified as independent virulence factors for CAG with adjusted odds ratios (95% confidence interval) of 3.52 (2.01-6.10), 3.19 (1.44-7.05), 4.03 (1.53-10.65), and 2.65 (1.06-6.62), respectively; the simultaneous presence of all four independent virulence factors was associated with an 18-fold risk of CAG. In conclusion, HcpC and GroEL were identified as new independent virulence factors, and in combination with the established virulence factors, CagA and VacA, were strongly associated with CAG.
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Affiliation(s)
- Lei Gao
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
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Lewerin C, Jacobsson S, Lindstedt G, Nilsson-Ehle H. Serum biomarkers for atrophic gastritis and antibodies against Helicobacter pylori in the elderly: Implications for vitamin B12, folic acid and iron status and response to oral vitamin therapy. Scand J Gastroenterol 2008; 43:1050-6. [PMID: 18609169 DOI: 10.1080/00365520802078341] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To investigate the prevalence of serological markers for chronic atrophic gastritis (AG) and Helicobacter pylori antibodies (HPAb) in an elderly population, and to examine the interrelationship and significance for cobalamin, folic acid and iron status and response to oral vitamin therapy. MATERIAL AND METHODS The study included community-dwelling subjects (n=209), mean age 76 years, randomized to 4 month of oral daily treatment with 0.5 mg cyanocobalamin, 0.8 mg folic acid and 3 mg vitamin B(6) or placebo (double-blind). Biochemical tests were carried out before and after treatment. RESULTS AG, as indicated by a pepsinogen I/II ratio <2.9, occurred in 14% (26/190) and HPAb in 54% (102/190) of the subjects. AG subjects had higher levels of serum methylmalonic acid (MMA) (p<0.001), plasma homocysteine (tHcy) (p<0.05), lower haemoglobin (Hb) (p<0.01) and a higher prevalence of vitamin B(12) deficiency (p<0.01). HPAb was associated with AG, whereas AG subjects without HPAb had higher tHcy and MMA levels. There was no correlation between AG and iron status. Oral vitamin treatment led to greater (albeit non-significant) improvements in MMA, tHcy and total cobalamins in AG subjects compared to non-AG subjects. CONCLUSIONS AG is a common condition and is a significant determinant of vitamin B(12) status. AG is correlated to HPAB and lower Hb. Elderly AG subjects respond at least as well as non-AG subjects to oral treatment with B-vitamins in the doses employed.
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Affiliation(s)
- Catharina Lewerin
- Departments of Medicine, Sahlgrenska Academy at the University of Gothenburg, Sweden
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Evaluation of a commercial immunoblot, Helicoblot 2.1, for diagnosis of Helicobacter pylori infection. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2008; 15:1705-10. [PMID: 18827192 DOI: 10.1128/cvi.00165-08] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The best method to diagnose Helicobacter pylori infection in different clinical situations is controversial. The aim of the study was to assess the performance of a commercial immunoblot, Helicoblot 2.1. The study comprised 215 patients, who were grouped according to the presence of H. pylori infection (assessed by two gastroscopies including histology with a median interval of 7.1 years, enzyme immunoassay [EIA]-based serology, and history of previous H. pylori infections and eradication therapies) into four categories: no H. pylori infection ever, previous infection, ongoing infection, and EIA seropositivity as the only marker of a possible previous infection. The sensitivity of Helicoblot 2.1 to show an ongoing or previous H. pylori infection was 100% and 92%, respectively. Helicoblot 2.1 was negative in only 80% of individuals with no evidence of present or previous infection but in 96% of patients 50 years of age or younger. The current infection marker of the immunoblot was positive in 49% of patients with successful H. pylori eradication therapy. After successful eradication therapy, Helicoblot 2.1 sustained positive results in 87% of patients, and CagA positivity was detected in 87% of patients with follow-up samples for more than 10 years after therapy. Helicoblot 2.1 is a sensitive and, among patients of ages 50 years or younger, a specific test in the primary diagnosis of H. pylori infection. However, it does not discriminate between past and current infections. It can be used in epidemiological studies assessing the role of H. pylori in different late sequelae.
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Comparison between serology and histology in the diagnosis of advanced gastric body atrophy: a study in a Dutch primary community. J Clin Gastroenterol 2008; 42:18-22. [PMID: 18097284 DOI: 10.1097/01.mcg.0000248008.70396.90] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
GOALS To assess serologically diagnosed gastric body atrophy (GBA) by histology in a sample of the general population. BACKGROUND GBA is a precursor lesion in gastric cancer. Data on GBA in a primary health care community in the Netherlands have not been reported. STUDY Thirty-four subjects of 997 consecutive adults from a Dutch family practice had serologic GBA, according to hypergastrinemia (>100 ng/L), hypopepsinogenemia A (<17 microg/L), and a low pepsinogen A/C ratio (<1.6). Two years later, 25 subjects of this group, agreed in serologic retesting and gastroscopy with biopsies for histologic assessment according to the Sydney system. RESULTS At serologic retesting, 20 of 25 subjects again fulfilled the serologic criteria of GBA. Histologic examination of the corpus biopsies showed advanced GBA in 18 subjects (75%) of 24 (1 subject had no corpus biopsies) and 17 of 19 (89%) subjects with repeated positive serology. After disclosure of serology results, reexamination of the biopsies revealed GBA also in the 2 patients with initially insufficient evidence of GBA, giving a concordance of 100% (19/19). One subject with normal serum gastrin at retesting had both antral and body atrophy giving a concordance between serologic and histologic GBA of 95% (19/20). No adenomatous polyps, tumors, or dysplastic alterations were found. CONCLUSIONS Identification by serology of asymptomatic patients with advanced GBA in primary care is adequately possible and useful in selecting for endoscopy.
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de Vries AC, Kuipers EJ. Epidemiology of premalignant gastric lesions: implications for the development of screening and surveillance strategies. Helicobacter 2007; 12 Suppl 2:22-31. [PMID: 17991173 DOI: 10.1111/j.1523-5378.2007.00562.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gastric cancer is one of the most common cancers worldwide; however, gastric cancer incidence varies greatly between different geographic areas. As gastric cancer is usually diagnosed at an advanced stage, the disease causes considerable morbidity and mortality. To detect gastric carcinomas at an early and curable stage, screening and surveillance seem necessary. Premalignant gastric lesions are well known risk factors for the development of intestinal type gastric adenocarcinomas. In a multistep cascade, chronic Helicobacter pylori-induced gastritis progresses through premalignant stages of atrophic gastritis, intestinal metaplasia and dysplasia, to eventually gastric cancer. Therefore, this cascade may provide a basis for early detection and treatment of gastric cancer. Epidemiology of gastric cancer and premalignant gastric lesions should guide the development of screening and surveillance strategies, as distinct approaches are required in countries with low and high gastric cancer incidences.
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Affiliation(s)
- Annemarie C de Vries
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
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28
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Weck MN, Stegmaier C, Rothenbacher D, Brenner H. Epidemiology of chronic atrophic gastritis: population-based study among 9444 older adults from Germany. Aliment Pharmacol Ther 2007; 26:879-87. [PMID: 17767472 DOI: 10.1111/j.1365-2036.2007.03430.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Epidemiological data on chronic atrophic gastritis from general population samples are sparse in Germany. AIM To assess prevalence of chronic atrophic gastritis according to potential risk factors and clinical outcomes in a large-scale population-based study. METHODS In the baseline examination of ESTHER, a population-based cohort study conducted in Germany, serological measurements of pepsinogen (PG) I and II and Helicobacter pylori antibodies were taken in 9444 women and men aged 50-74 years. Information on potential risk factors and medical history were obtained by questionnaire. RESULTS With the definition used in the EUROGAST study (PG I < 25 ng/mL), prevalence of chronic atrophic gastritis increased from 4.8% in age group 50-54 to 8.7% in age group 70-74. An alternative definition of chronic atrophic gastritis (PG I < 70 ng/mL and PG I/PG II < 3), used in multiple studies from Japan, revealed a greater increase with age (from 2.7% to 9.1%) and a strong association with H. pylori infection (adjusted odds ratio: 2.9, 95% confidence interval: 2.4-3.7). With both definitions, a strong inverse association with heartburn was observed. CONCLUSIONS Overall chronic atrophic gastritis prevalence is low among older adults in Germany, but it strongly increases with age and H. pylori infection.
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Affiliation(s)
- M N Weck
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
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29
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Mégraud F, Lehours P. Helicobacter pylori detection and antimicrobial susceptibility testing. Clin Microbiol Rev 2007; 20:280-322. [PMID: 17428887 PMCID: PMC1865594 DOI: 10.1128/cmr.00033-06] [Citation(s) in RCA: 463] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The discovery of Helicobacter pylori in 1982 was the starting point of a revolution concerning the concepts and management of gastroduodenal diseases. It is now well accepted that the most common stomach disease, peptic ulcer disease, is an infectious disease, and all consensus conferences agree that the causative agent, H. pylori, must be treated with antibiotics. Furthermore, the concept emerged that this bacterium could be the trigger of various malignant diseases of the stomach, and it is now a model for chronic bacterial infections causing cancer. Most of the many different techniques involved in diagnosis of H. pylori infection are performed in clinical microbiology laboratories. The aim of this article is to review the current status of these methods and their application, highlighting the important progress which has been made in the past decade. Both invasive and noninvasive techniques will be reviewed.
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Affiliation(s)
- Francis Mégraud
- INSERM U853, and Université Victor Segalen Bordeaux 2, and Laboratoire de Bactériologie, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux cedex, France.
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30
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Abstract
Some diffuse type gastric cancers are of hereditary origin. Their histological characteristics are poor cell differentiation and the presence of signet-ring cells. The cause is a mutation of the CDH1 gene which is responsible for abnormal E-cadherin. The transmission mode is autosomal dominant. Because of serious prognosis of symptomatic hereditary diffuse gastric cancer (HDGC), the high penetrance of the gene (67% in men and 83% in women) and the young age of onset of these tumors (before the age of 40), a prophylactic gastrectomy is recommended to the mutation carriers. The search for the genetic mutation should be recommended to families corresponding to clinical criteria such as the number of affected family members, degree of relationship and age of onset of these tumors.
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31
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Larsson SC, Giovannucci E, Wolk A. Coffee consumption and stomach cancer risk in a cohort of Swedish women. Int J Cancer 2006; 119:2186-9. [PMID: 16841331 DOI: 10.1002/ijc.22105] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Few prospective studies have examined the relationship between coffee consumption and risk of stomach cancer, and the findings have been inconsistent. We prospectively investigated the association of long-term coffee consumption with risk of stomach cancer in a population-based cohort study of 61,433 Swedish women. Information on coffee consumption was collected with a food-frequency questionnaire at baseline (1987-1990) and updated in 1997. During a mean follow-up of 15.7 years from 1987 through June 2005, 160 incident cases of stomach cancer were diagnosed. Coffee consumption was positively associated with the risk of stomach cancer. Compared to women who consumed 1 or fewer cups of coffee per day, the multivariate hazard ratios were 1.49 (95% = 0.97-2.27) for women who drank 2-3 cups per day and 1.86 (95% CI = 1.07-3.25) for those who drank 4 or more cups per day (p for trend = 0.01). An increase of 1 cup of coffee per day was associated with a statistically significant 22% increased risk of stomach cancer (hazard ratio = 1.22; 95% CI = 1.05-1.42). These prospective data suggest that coffee consumption may increase the risk of stomach cancer in a dose-response manner. This finding needs to be confirmed in other prospective studies.
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Affiliation(s)
- Susanna C Larsson
- Division of Nutritional Epidemiology, The National Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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32
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Oh JD, Kling-Bäckhed H, Giannakis M, Engstrand LG, Gordon JI. Interactions between gastric epithelial stem cells and Helicobacter pylori in the setting of chronic atrophic gastritis. Curr Opin Microbiol 2006; 9:21-7. [PMID: 16406776 DOI: 10.1016/j.mib.2005.12.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2005] [Accepted: 12/23/2005] [Indexed: 12/28/2022]
Abstract
Chronic atrophic gastritis (ChAG), a Helicobacter pylori-associated risk factor for the development of gastric cancer, involves loss of acid-producing parietal cells. Recent studies in gnotobiotic mouse models of ChAG have shown that parietal cell loss results in amplification of multi- and oligo-potential gastric stem cells that express sialylated glycan receptors recognized by H. pylori adhesins. Moreover, H. pylori resides within a subset of these stem cells. Studies of the transcriptomes of gastric stem cells, harvested directly from the stomachs of uninfected mice, using laser capture microdissection, suggest that they have the ability to complement some of the metabolic needs of H. pylori. These findings indicate that proliferating and non-proliferating gastric stem cells provide a habitat that could support H. pylori persistence in a gastric ecosystem that has lost its acid barrier to colonization by environmental, oral and intestinal microbes. One consequence to the host might be an increased risk of tumorigenesis.
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Affiliation(s)
- Jung D Oh
- Center for Genome Sciences and Department of Molecular Biology and Pharmacology, Washington University School of Medicine, St. Louis, MO 63108, USA
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Abstract
Chronic gastritis, or chronic inflammation in gastric antral and/or corpus mucosa, is a common pathological condition affecting over half the general population. Progression of chronic gastritis from Helicobacter pylori infection to severe gastric mucosal atrophy usually takes decades and varies considerably from person to person. Therefore, studies of clinically selected material cannot provide a complete picture of natural evolution of the disease or its wide variability. An overview of immunological and morphological aspects of chronic gastritis in an epidemiological context, based on data from the literature and the author's studies, reveal dynamic interaction between H. pylori infection and host response to the organism's antigens, and to gastric autoantigens including gastric H+K+ ATPase. Further population and followup studies of antral and corpus gastritis at different stages of evolution are needed, in combination with new methods, to elucidate further the roles of infection, and gastric-antrum- and corpus-mucosa-related autoimmune responses, in the pathogenesis of chronic gastritis.
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Affiliation(s)
- Raivo Uibo
- Department of Immunology, Institute of General and Molecular Pathology, University of Tartu, Tartu, Estonia.
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Figura N, Gennari L, Merlotti D, Lenzi C, Campagna S, Franci B, Lucani B, Trabalzini L, Bianciardi L, Gonnelli C, Santucci A, Nut A. Prevalence of Helicobacter pylori infection in male patients with osteoporosis and controls. Dig Dis Sci 2005; 50:847-52. [PMID: 15906756 DOI: 10.1007/s10620-005-2651-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cytokines that regulate bone turnover (tumor necrosis factor-alpha, interleukin-6, etc.) may influence the pathogenesis of skeleton disorders, such as osteoporosis. Since Helicobacter pylori infection increases the systemic levels of inflammatory cytokines, we investigated the possibility that this infection increases the risk of developing osteoporosis and affects the bone metabolism in a group of male patients with osteoporosis. We examined 80 osteoporotic male patients and 160 controls for serum antibodies to H. pylori and the CagA protein and determined, in patients alone, the most important biochemical and instrumental parameters of the disease. Fifty-one patients (63.7%) and 107 controls (66.8%) were seropositive for H. pylori infection (nonsignificant); 30 infected patients (58.8%) and 43 infected controls (40.1%) were positive for anti-CagA antibodies (P = 0.028; OR = 2.13). Levels of estradiol in infected CagA-positive patients were significantly lower than in infected CagA-negative patients (28.5 [SD = 10.18] vs. 39.5 [SD = 14.50] pg/ml; P = 0.002) and uninfected patients (35.2 [SD = 12.7] pg/ml; P = 0.028). Levels of urinary cross-laps(a marker of bone resorption) were increased in patients infected by CagA-positive strains compared to patients infected by CagA-negative strains (282.9 [SD = 103.8] vs. 210.5 [SD = 150.1]microg/mmol; P = 0.048) and uninfected patients (204.3 [SD = 130.1] microg/mmol; P = 0.016). Differences among uninfected and infected patients, independent of CagA status, were observed for other markers of bone turnover, but they did not reach statistical significance. Infection by CagA-positive H. pylori strains is more prevalent in men with osteoporosis, who show reduced systemic levels of estrogens and increased bone turnover. H. pylori infection by strains expressing CagA may therefore be considered a risk factor for osteoporisis in men.
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Affiliation(s)
- N Figura
- Department of Internal Medicine, Endocrine-Metabolic Sciences and Biochemistry, University of Siena, Siena, Italy.
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Faller G, Kirchner T. Immunological and morphogenic basis of gastric mucosa atrophy and metaplasia. Virchows Arch 2004; 446:1-9. [PMID: 15583929 DOI: 10.1007/s00428-004-1157-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2004] [Accepted: 09/30/2004] [Indexed: 12/21/2022]
Abstract
Chronic gastritis with gastric mucosa atrophy, intestinal metaplasia and endocrine cell hyperplasia are alterations with an increased risk for the development of gastric neoplasias. Immunological studies in autoimmune gastritis, in atrophic Helicobacter pylori gastritis and in studies with transgenic mice point to a central role of the parietal cell in the development of gastric mucosa atrophy. Destruction of gastric epithelial cells alone might not be sufficient for the loss of complete gastric glands. Gastric atrophy, endocrine cell hyperplasia and intestinal and pancreatic metaplasia can be regarded as the result of altered morphogenesis within the gastric mucosa. Impaired expression of the gastric morphogenic factor Sonic Hedgehog by parietal cells and increased expression of the transcriptional activators of intestinal and pancreatic differentiation, namely CDX2 and PDX1, seem to be crucial for the development of gastric atrophy and for intestinal, endocrine and pancreatic transdifferentiation processes. Altered expression of these morphogenic factors is partly caused by changes in the gastric milieu. Further studies concerning the normal and pathological morphogenesis of the gastric mucosa and related tissues might give new insight into the pathogenesis of gastric atrophy and metaplasia.
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Affiliation(s)
- Gerhard Faller
- Institute of Pathology, Krankenhausstrasse 8-10, 91054 Erlangen, Germany.
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36
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Katić V, Tasić-Dimov D, Dimitrijević J, Zivković V, Gmijović D, Stojanović M, Popović D. [The role of Helicobacter pylori infection in the development of gastric neoplasms]. VOJNOSANIT PREGL 2004; 61:405-11. [PMID: 15552537 DOI: 10.2298/vsp0404405k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Vuka Katić
- Klinicki centar Nis, Institut za patologiju, Nis, Srbija i Crna Gora
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Mégraud F, Lehours P. Helicobacter pylori and gastric cancer prevention is possible. ACTA ACUST UNITED AC 2004; 28:392-8. [PMID: 15582262 DOI: 10.1016/j.cdp.2004.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2004] [Indexed: 12/24/2022]
Abstract
Epidemiological data gathered during the past few years have shown an association between Helicobacter pylori infection and gastric carcinoma. This association is considered to be causal because of its biological plausibility and the existence of an animal model, even though the positive consequences of eradication on cancer prevention have not yet been definitely proven. The limited proportion of H. pylori infected subjects who develop a gastric cancer can be explained by host factors (certain alleles of IL-1beta) and bacterial factors (cag positive strains), and to a lesser extent by environmental factors (diet). Arguments in favor of the prevention of gastric carcinoma by eradicating H. pylori are now stronger than before, given the availability of simple and accurate diagnostic tests (serology) and treatment follow-up (urea breath test), as well as a 7-day treatment which is usually sufficient for eradication.
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Affiliation(s)
- Francis Mégraud
- Université Victor Segalen Bordeaux 2, National Reference Center for Campylobacters and Helicobacters, Laboratoire de Bactériologie, Université Victor Segalen Bordeaux 2, 33076 Bordeaux Cedex, France.
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Dimmler A, Brabletz T, Hlubek F, Häfner M, Rau T, Kirchner T, Faller G. Transcription of sonic hedgehog, a potential factor for gastric morphogenesis and gastric mucosa maintenance, is up-regulated in acidic conditions. J Transl Med 2003; 83:1829-37. [PMID: 14691301 DOI: 10.1097/01.lab.0000101729.25140.0c] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Gastric body mucosa atrophy predisposes one to gastric cancer. Disturbances in the gastric differentiation process might play a role in the evolution of gastric atrophy. Sonic hedgehog (Shh) has recently been implicated as a crucial factor in gastric organogenesis and gland differentiation. In this study we investigated the expression of key factors in the Shh pathway, namely Shh and its receptor Patched (Ptc), in normal and pathologic stomach mucosa. Furthermore, the potential role of pH for Shh dysregulation was analyzed. Ten gastric biopsy specimens each from normal gastric mucosa, chronic nonatrophic gastritis, atrophic gastritis, and gastric cancer were included. Expression of Shh and Ptc was analyzed by immunohistochemistry. In normal body mucosa and in nonatrophic body gastritis, Shh was strongly expressed in parietal cells. Ptc was also expressed in gastric chief cells. Shh expression was almost completely lost in atrophic gastritis and in gastric cancer and absent in intestinal metaplasia. Ptc was markedly reduced in atrophy and only weakly positive in intestinal metaplasia and gastric cancer. In in vitro experiments, gastric cancer cell line 23132 was found positive for Shh. In long-term culture as well as in culture conditions with low pH, transcription of Shh in 23132 was significantly increased in quantitative reverse transcription PCR analyses. We concluded that the decreased expression of the Shh pathway in atrophic gastritis and gastric cancer might reflect altered differentiation processes within the gastric unit and contributes to the development of gastric atrophy. The increase of gastric pH might play a role in the development of gastric mucosa atrophy via reduction of Shh transcription.
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Affiliation(s)
- Arno Dimmler
- Institute of Pathology, University of Erlangen-Nuremberg, Erlangen, Germany
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Affiliation(s)
- M Brian Fennerty
- Division of Gastroenterology, Oregon Health & Science University, Portland, Oregon 97239, USA.
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Broutet N, Plebani M, Sakarovitch C, Sipponen P, Mégraud F. Pepsinogen A, pepsinogen C, and gastrin as markers of atrophic chronic gastritis in European dyspeptics. Br J Cancer 2003; 88:1239-47. [PMID: 12698190 PMCID: PMC2747577 DOI: 10.1038/sj.bjc.6600877] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Serum levels of pepsinogen and gastrin are parameters that can be used as biomarkers for gastric mucosa. The aim of this study was to validate these serum biomarkers, that is pepsinogen A (PGA), pepsinogen C (PGC), PGA/PGC ratio, and gastrin, as screening tests for precancerous lesions: atrophic chronic gastritis (ACG) or Helicobacter pylori-related corpus-predominant or multifocal atrophy. The study population was comprised of a subsample of 284 patients from the 451 included in the Eurohepygast cohort, between 1995 and 1997. The concentrations of PGA, PGC, and gastrin were measured by radioimmunoassays. Histological diagnosis was the gold standard. Cut-off points were calculated using receiving operator characteristics (ROC) curves. Factors linked to variation of biomarkers were identified using multivariate linear regression. The mean of each biomarker in the sample was: PGA, 77.4 microg x l(-1); PGC, 13.2 microg x l(-1); PGA/PGC, 6.7; and gastrin, 62.4 ng x l(-1). For ACG patients, the areas under the PGA, PGC, PGA/PGC, and gastrin ROC curves were 0.55, 0.62, 0.73, and 0.58, respectively. The best cut-off point for PGA/PGC was 5.6, with sensitivity 65% and specificity 77.9%. For H. pylori-related corpus-predominant or multifocal atrophy, the areas under the respective ROC curves were 0.57, 0.67, 0.84, and 0.69. The best cut-off point for PGA/PGC was 4.7, with sensitivity 77.1% and specificity 87.4%. The results suggested that only the PGA/PGC ratio can be considered as a biomarker for precancerous lesions of the stomach, and may be useful as a screening test.
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Affiliation(s)
- N Broutet
- Unité d'Epidémiologie des Maladies Digestives, Laboratoire de Bactériologie, Université Victor Segalen Bordeaux 2, 146, rue Léo Saignat, 33076 Bordeaux, Cedex, France
| | - M Plebani
- Department of Laboratory Medicine, University Hospital of Padova, Italy
| | - C Sakarovitch
- Unité d'Epidémiologie des Maladies Digestives, Laboratoire de Bactériologie, Université Victor Segalen Bordeaux 2, 146, rue Léo Saignat, 33076 Bordeaux, Cedex, France
| | | | - F Mégraud
- Unité d'Epidémiologie des Maladies Digestives, Laboratoire de Bactériologie, Université Victor Segalen Bordeaux 2, 146, rue Léo Saignat, 33076 Bordeaux, Cedex, France
- Unité d'Epidémiologie des Maladies Digestives, Laboratoire de Bactériologie, Université Victor Segalen Bordeaux 2, 146, rue Léo Saignat, 33076 Bordeaux, Cedex, France. E-mail:
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