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Nagireddi T, Reddy BV, Kollimarla M, Kamala V, Desu SS, Pentapati SSK, Aravindakshan R, Gupta A. Study on knowledge of front-of-pack labeling and food group-based dietary intake among chronic gastritis patients. J Family Med Prim Care 2023; 12:2128-2133. [PMID: 38024917 PMCID: PMC10657064 DOI: 10.4103/jfmpc.jfmpc_322_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Chronic gastritis is one of the most prevalent disorders affecting individuals, which affects hundreds of millions of people in different ways around the world. The significant incidence of poor dietary quality and diet-related illnesses may be addressed by orienting customers toward healthier food options. The objective of the study was to estimate the knowledge of front-of-package labels (FoPLs) and food group-based dietary intake of nutrients among patients with chronic gastritis. Materials and Methods The study design was a hospital-based cross-sectional study that was done in Guntur district of Andhra Pradesh. The study population included 208 chronic gastritis patients between 20 to 60 years of age selected by systematic sampling. Detailed information on sociodemographic and lifestyle factors was collected using a questionnaire and 24-h dietary recall was done. The objective assessment of Knowledge of FoPLs was assessed mock package images representing a fictional brand to prevent other factors from interfering with product evaluation. Results A total of 208 patients were studied with a near-equal proportion of males and females. Among participants, more than half (57.2%) can interpret FoPL, more than three-fourths (77.4%) have a belief that they eat a healthy diet mostly and only half (52.4%) of participants are somewhat knowledgeable about nutrition, and finally almost half (46.6%) of participants are not seeing the FoP label during food purchase. The mean score of knowledge of FoP labeling was 0.92 ± 1.135. Knowledge of FOPL was positively associated with the age of study participants OR 0.178 (95% CI: 0.178 to 0.856) with P value = 0.02. Grains have the maximum intake among all the food groups with a mean intake of 123.21 g/day. Conclusion The majority of participants do not know the food labeling, thus methods of education that focus on dietary interventions are urgently needed to raise awareness among the people.
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Affiliation(s)
- Tejaswi Nagireddi
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - B Venkatashiva Reddy
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Mounika Kollimarla
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Veerabathina Kamala
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Sai Subhakar Desu
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Siva Santosh Kumar Pentapati
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Rajeev Aravindakshan
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
| | - Arti Gupta
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
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Kwak JH, Eun CS, Han DS, Kim YS, Song KS, Choi BY, Kim HJ. Association between soy products, fruits, vegetables, and dairy products and gastric cancer risk in Helicobacter pylori-infected subjects: a case-control study in Korea. Nutr Res Pract 2023; 17:122-134. [PMID: 36777798 PMCID: PMC9884584 DOI: 10.4162/nrp.2023.17.1.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/13/2022] [Accepted: 05/25/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND/OBJECTIVES Consumption of certain protective foods may help inhibit Helicobacter pylori (H. pylori) associated gastric pathologies. However, studies conducted to assess the efficacy of protective foods in H. pylori-infected subjects are either limited or inconsistent. This study evaluated the association of individual or a combination of protective foods on the incidence of gastric cancer (GC) in H. pylori-positive subjects through a case-control study. MATERIALS/METHODS Subjects aged 20-79 years were selected from 2 hospitals between December 2002 and September 2006. In total, 134 patients and 212 controls tested positive for H. pylori infection. Among these, we included 82 pairs of cases and controls matched by sex, age (± 5 years), enrollment period (± 1 years), and hospital. RESULTS A higher intake of soy products was associated with a significantly lower risk of GC than a lower intake of soy products (odds ratio [OR] = 0.37, 95% confidence interval [CI] = 0.14-0.96). Additionally, a higher fruit intake resulted in a significantly lower risk of GC than a lower fruit intake (OR = 0.35, 95% CI = 0.13-0.94). A combination of food groups was evaluated, and a lower risk of GC was observed with a high intake of both soy products and fruits (OR = 0.20, 95% CI = 0.06-0.67), high intake of soy and dairy products (OR = 0.28, 95% CI = 0.10-0.78) and high intake of fruits and dairy products (OR = 0.28, 95% CI = 0.09-0.83). CONCLUSIONS A high intake of soy products or fruits was associated with a lower risk of GC. A combination of soy products or fruits with dairy products was associated with a lower risk of GC. A balanced intake of soy products, fruits, and dairy products may help reduce GC risk.
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Affiliation(s)
- Jung Hyun Kwak
- Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - Chang Soo Eun
- Division of Gastroenterology, Department of Internal Medicine, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Dong Soo Han
- Division of Gastroenterology, Department of Internal Medicine, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Yong Sung Kim
- Functional Genomics Institute, PDXen Biosystems Co., Daejeon 34129, Korea
| | - Kyu Sang Song
- Department of Pathology, Chungnam National University College of Medicine, Daejeon 34134, Korea
| | - Bo Youl Choi
- Department of Preventive Medicine, Hanyang University College of Medicine, Seoul 04763, Korea
| | - Hyun Ja Kim
- Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung 25457, Korea
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Yin J, Yi J, Yang C, Xu B, Lin J, Hu H, Wu X, Shi H, Fei X. Chronic atrophic gastritis and intestinal metaplasia induced by high-salt and N-methyl-N'-nitro-N-nitrosoguanidine intake in rats. Exp Ther Med 2021; 21:315. [PMID: 33717258 PMCID: PMC7885066 DOI: 10.3892/etm.2021.9746] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 09/15/2020] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to induce chronic atrophic gastritis (CAG) with intestinal metaplasia (IM) in rats by administering saturated salt and methyl-N'-nitro-N-nitrosoguanidine (MNNG) via oral gavage. Changes in gastric mucosal blood microcirculation and activation of the cyclo-oxygenase-2 (COX-2)/hypoxia inducible factor-1α (HIF-1α)/vascular endothelial growth factor (VEGF) signaling pathway during CAG and IM development were investigated. After administering saturated salt and MNNG for 25 weeks, mild atrophy was detected in the stomach of model rats using hematoxylin and eosin staining. CAG with IM was successfully induced in the gastric mucosa of the model rats after 35 weeks. Gastric mucosal blood flow was decreased in comparison with controls as early as 15 weeks after treatment to induce CAG and the mRNA expression levels of COX-2, HIF-1α, vascular endothelial growth factor receptor (VEGFR)1 and VEGFR2 were increased in comparison with untreated rats as early as 25 weeks after treatment. HIF-1α, COX-2 and VEGFR2 expression levels were increased as early as 25 weeks after CAG induction treatment when compared to controls and HIF-1α, COX-2, VEGFR1 and VEGFR2 expression levels were significantly increased after 35 weeks. These findings indicated that administering saturated salt and MNNG by gavage for 35 weeks successfully induced CAG and IM in rats. Furthermore, the microcirculation was disturbed before activation of the COX-2/HIF-1α/VEGF signaling pathway.
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Affiliation(s)
- Jing Yin
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Jinyu Yi
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Chun Yang
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Bo Xu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Jiang Lin
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Hongyi Hu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Hailian Shi
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Xiaoyan Fei
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
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Zhang Y, Sun J, Dong Y, Shen X, Zhang Z. Vicenin-2 inhibits the Helicobacterium pylori infection associated gastric carcinogenic events through modulation of PI3K/AKT and Nrf2 signaling in GES-1 cells. J Biochem Mol Toxicol 2020; 35:e22680. [PMID: 33325628 DOI: 10.1002/jbt.22680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/04/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022]
Abstract
Helicobacter pylori (H. pylori), a microbial carcinogen of Gram-negative bacteria, has been recognized to be the highest risk factor for the growth of human gastric cancer (GC). Therefore, the inhibition of the growth rate of H. pylori has been considered an effective vital strategy to prevent GC development. This study highlights the inhibitory effect of vicenin-2 against H. pylori-induced gastric carcinogen signaling in human gastric epithelial cells (GES-1). In vitro cytotoxicity studies reported that 40 µM of vicenin-2 remarkably protects the gastric cells and this concentration shows 85% cell viability also does not produce toxicity. In addition, vicenin-2 prevents H. pylori-infected increased depletion of antioxidants mediated by reactive oxygen species generation, DNA damage, malondialdehyde, and nuclear fragmentation. Here, we noticed that vicenin-2 remarkably suppressed the expression range of the phosphorylated form of phosphatidylinositol 3-kinase/protein kinase B, phosphorylated p38 kinases, phosphorylated extracellular signal-regulated kinase-1, phosphorylated c-Jun N-terminal kinase, tumor necrosis factor-α, interleukin-6, cyclooxygenase-2 in GES-1 infected with H. pylori. Moreover, we observed that vicenin-2 enhanced the antioxidants protein nuclear factor erythroid factor-2 and phosphatase and tensin homolog expression in H. pylori-infected cells. Thus, vicenin-2 prevents the H. pylori-associated infection, and its resistance might be a potential strategy in preventing GC induced by H. pylori.
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Affiliation(s)
- Yifeng Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jing Sun
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Dong
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaoran Shen
- Department of Gastroenterology, Nantong First People's Hospital, Nantong, China
| | - Zhenyu Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Estimation of the performance of a risk prediction model for gastric cancer occurrence in Japan: Evidence from a small external population. Cancer Epidemiol 2020; 67:101766. [PMID: 32570193 DOI: 10.1016/j.canep.2020.101766] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 04/30/2020] [Accepted: 06/10/2020] [Indexed: 11/20/2022]
Abstract
INTRODUCTION We recently developed a risk prediction model for gastric cancer which showed good performance in terms of discrimination. However, lack of external validation hampers the generalizability of our results. METHODS The study population consisted of 1292 individuals from JPHC cohort I (Omonogawa town, Akita prefecture). The previously developed model was used to predict survival for each individual at 10 years of follow-up. RESULTS Thirty-three cases of gastric cancer occurred during 17,246 person-years of follow-up (27 cases occurred during the first 10 years). The c-index was estimated at 0.798 at 10 years of follow-up. In terms of calibration, the Nam-d'Agostino test was non significant (p-value = 0.23). DISCUSSION Our previously developed risk prediction model for gastric cancer showed good performance on an external population. This suggests it might be used for risk discrimination in the general Japanese population.
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Inoue M, Sawada N, Goto A, Shimazu T, Yamaji T, Iwasaki M, Tsugane S. High-Negative Anti–Helicobacter pylori IgG Antibody Titers and Long-Term Risk of Gastric Cancer: Results from a Large-Scale Population-Based Cohort Study in Japan. Cancer Epidemiol Biomarkers Prev 2019; 29:420-426. [DOI: 10.1158/1055-9965.epi-19-0993] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/04/2019] [Accepted: 12/03/2019] [Indexed: 01/11/2023] Open
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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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Song JH, Kim YS, Heo NJ, Lim JH, Yang SY, Chung GE, Kim JS. High Salt Intake Is Associated with Atrophic Gastritis with Intestinal Metaplasia. Cancer Epidemiol Biomarkers Prev 2017; 26:1133-1138. [PMID: 28341758 DOI: 10.1158/1055-9965.epi-16-1024] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 01/11/2017] [Accepted: 03/17/2017] [Indexed: 12/16/2022] Open
Abstract
Background: Although several studies have investigated excessive salt intake as a risk factor for gastric precancerous lesions, such as atrophic gastritis and intestinal metaplasia, the evidence is insufficient to make a conclusion. We evaluated the association between gastric precancerous lesions and salt intake.Methods: From 2008 to 2015, the medical records of 728 subjects who underwent upper gastrointestinal endoscopy and sodium excretion in 24-hour urine tests were retrospectively reviewed. Sixty-six subjects were excluded due to diuretics use (n = 55), diagnosis with a gastric neoplasm (n = 4), or the cases of intestinal metaplasia in the absence of atrophy (n = 7), so 662 subjects were included. Atrophic gastritis and intestinal metaplasia were diagnosed by endoscopic findings. The subjects were grouped into three levels by tertiles of 24-hour urine sodium excretion.Results: A total of 192 (29.0%) had atrophic gastritis without intestinal metaplasia and 112 (16.9%) had atrophic gastritis with intestinal metaplasia. A total of 276 subjects (61.5%) were infected with Helicobacter pylori (H. pylori). In multivariate analyses, H. pylori infection [OR = 14.17; 95% confidence interval (CI), 7.12-28.22) was associated with atrophic gastritis without intestinal metaplasia. Highest levels of sodium excretion (OR = 2.870; 95% CI, 1.34-6.14), heavy smoking (≥20 pack-years) (OR = 2.75; 95% CI, 1.02-7.39), and H. pylori infection (OR = 3.96; 95% CI, 2.02-7.76) were associated with atrophic gastritis with intestinal metaplasia.Conclusions: Our endoscopy-based study suggested that high salt intake could be associated with an increased risk of atrophic gastritis with intestinal metaplasia.Impact: Low salt diet might be helpful to prevent gastric carcinogenesis. Cancer Epidemiol Biomarkers Prev; 26(7); 1133-8. ©2017 AACR.
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Affiliation(s)
- Ji Hyun Song
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Young Sun Kim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Nam Ju Heo
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Joo Hyun Lim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Sun Young Yang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea.
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Wirth HP, Yang M. Different Pathophysiology of Gastritis in East and West? A Western Perspective. Inflamm Intest Dis 2016; 1:113-122. [PMID: 29922666 DOI: 10.1159/000446300] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/13/2016] [Indexed: 12/11/2022] Open
Abstract
Background Gastritis results from multifactorial gastric mucosal injury. Helicobacter pylori (Hp) is the main cause, and associated diseases have typical underlying patterns of gastritis. Gastric ulcer and gastric cancer (GC) develop from chronic atrophic corpus gastritis (CAG) which therefore represents the most important pattern. GC incidences in East Asia are substantially higher than elsewhere, and this should be also reflected by higher prevalences of CAG and characteristic differences in pathophysiology compared to the West. Summary The few available comparative studies of gastritis in Eastern and Western patients are summarized. The main pathogenic factors of gastritis are discussed together with their limitations to explain local differences in disease outcome. Emphasis was put to also include less well-established pathogenic host and environmental factors of possible impact. Conclusions CAG is more prevalent in East Asian areas with high GC incidences than the West. Geographic heterogeneity of associated diseases is due to differences in Hp prevalence and virulence as well as modulating host and environmental factors. The following may contribute to the higher burden of CAG in the East: ABD type of CagA with vacA s1 and babA2 alleles of Hp, host Lewis(b) expression in sej/sej nonsecretors, H. heilmannii, low parietal cell mass, high sodium and nitrate intake, preferences in vegetable and fruit consumption, cigarette smoking, air pollution, alcohol. Conversely, green tea, nonfermented soy products and rice may confer protective effects. Hp is on the decline, but also in a world cleared from this bacterium, differences in host genetics will continue to modify gastric disease outcome together with maintained customs as part of cultural diversity.
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Affiliation(s)
| | - Manqiao Yang
- GastroZentrumKreuzlingen, Kreuzlingen, Switzerland
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Dietary Factors in Relation to Helicobacter pylori Infection. Gastroenterol Res Pract 2014; 2014:826910. [PMID: 25574164 PMCID: PMC4275652 DOI: 10.1155/2014/826910] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/09/2014] [Accepted: 11/09/2014] [Indexed: 01/13/2023] Open
Abstract
Background and Aim. Helicobacter pylori (HP) and diet are both risk factors for gastric cancer. The aim of this study was to evaluate the Helicobacter pylori infection and dietary habits common in Khuzestan province. Methods. This cross-sectional study was conducted in 2011–2013 on 374 patients. Participants were interviewed using a food frequency questionnaire and tissue sample of the antrum was sent for pathology lab. The histopathological major variables were graded on a scale of 3 (mild, moderate, and severe) and data analyzed using nonparametric tests. Results. In this study, of 160 patients (43%) that were determined, 8.1 percent had severe contamination. Among dietary patterns, relationship between energy intake and carbohydrate with H. pylori was significant. A direct association was found between mean daily intakes of sausage (P = 0.001) and burgers (P < 0.05) with HP infection. Low intake of fresh vegetables and fruits was the most significant risk factors (P < 0.05). Conclusion. There is a possibility that some dietary factors such as consumption of fast foods and low intake of fresh vegetables may increase the chance of HP and severity of this infection.
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Hu D, Shao J, Wang L, Zheng H, Xu Y, Song G, Liu Q. Prevalence and risk factors ofHelicobacter pyloriinfection in Chinese maritime workers. Ann Hum Biol 2013; 40:472-6. [DOI: 10.3109/03014460.2013.804121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Hishida A, Matsuo K, Goto Y, Hamajima N. Genetic predisposition to Helicobacter pylori-induced gastric precancerous conditions. World J Gastrointest Oncol 2010; 2:369-79. [PMID: 21160888 PMCID: PMC2999673 DOI: 10.4251/wjgo.v2.i10.369] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 09/20/2010] [Accepted: 09/27/2010] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer is the most common malignancy of the gastrointestinal tract in East Asian populations and the second most frequent cause of cancer-related mortality in the world. While previous studies have investigated the genetic factors involved in gastric carcinogenesis, there still exist relatively few studies that have investigated the genetic traits associated with the risk of gastric precancerous conditions. In this paper we will review the biology and genetic polymorphisms involved in the genesis of gastric precancerous conditions reported to date and discuss the future prospects of this field of study. The associations of gastric precancerous conditions with polymorphisms in the cytotoxin-associated gene A-related genes (e.g. PTPN11 G/A at intron 3, rs2301756), those in the genes involved in host immunity against Helicobacter pylori (H. pylori) infection (e.g. TLR4 +3725G/C, rs11536889) or polymorphisms of the genes essential for the development/ differentiation of the gastric epithelial cells (e.g. RUNX3 T/A polymorphism at intron 3, rs760805) have been reported to date. Genetic epidemiological studies of the associations between H. pylori-induced gastric precancerous conditions and other gene polymorphisms in these pathways as well as polymorphisms of the genes involved in other pathways like oxidative DNA damage repair pathways would provide useful evidence for the individualized prevention of these H. pylori-induced gastric precancerous conditions.
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Affiliation(s)
- Asahi Hishida
- Asahi Hishida, Yasuyuki Goto, Nobuyuki Hamajima, Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
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Shi R, Xu S, Zhang H, Ding Y, Sun G, Huang X, Chen X, Li X, Yan Z, Zhang G. Prevalence and risk factors for Helicobacter pylori infection in Chinese populations. Helicobacter 2008; 13:157-65. [PMID: 18321305 DOI: 10.1111/j.1523-5378.2008.00586.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The prevalence of Helicobacter pylori is higher in developing countries. The aim of this study was to investigate the prevalence and risk factors of H. pylori infection in areas with high prevalence of gastric cancer in Jiangsu Province, China. METHODS A prospective epidemiologic survey of H. pylori infection was accomplished in a natural population of 1457 individuals in Xiangshui and Gaoyou counties, Jiangsu Province, China. Questionnaires and laboratory tests for H. pylori infection ((13)C-urea breath test and serum IgG antibodies to H. pylori) were used and performed, respectively. RESULT Among 1371 subjects who completed questionnaires and H. pylori detection, 851 (62%) were H. pylori positive. The prevalence reached a peak at the age of 30-40 years (67%). There was no sex difference. The annual family income level was shown to be positively correlated with the risk of H. pylori infection. The prevalence of H. pylori infection was also associated with family size, education level, and several diet-related factors, such as the number of times cooked rice and potatoes eaten per week, and a family history of stomach diseases. Compared to nonsymptomatic individuals, people with dyspeptic symptoms (nausea, vomiting, and belching) presented a low prevalence of H. pylori infection. No association between H. pylori prevalence and smoking or drinking was found. Using multivariate logistic regression analysis, annual family income and education level were the independent predictors for H. pylori infection. CONCLUSION High prevalence of H. pylori infection was found in areas with a high risk of gastric cancer and was related to several risk factors. The underlying mechanisms need to be further investigated.
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Affiliation(s)
- Ruihua Shi
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Ishizone S, Maruta F, Suzuki K, Miyagawa S, Takeuchi M, Kanaya K, Oana K, Hayama M, Kawakami Y, Ota H. In vivo bactericidal activities of Japanese rice-fluid against H. pylori in a Mongolian gerbil model. Int J Med Sci 2007; 4:203-8. [PMID: 17717596 PMCID: PMC1950273 DOI: 10.7150/ijms.4.203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Accepted: 08/09/2007] [Indexed: 12/15/2022] Open
Abstract
PURPOSE The antibiotic effect of rice-fluid on Helicobacter pylori infection was investigated using a Mongolian gerbil model. METHODS Gerbils were divided into four groups: H. pylori -infected, rice-fluid-treated animals (group A); H. pylori -infected, untreated animals (group B); uninfected, rice-fluid-treated animals (group C); and uninfected, untreated animals (group D). Group A and B animals were killed 14 weeks after H. pylori infection and group C and D animals were killed at the same age. The stomachs were examined for histology, 5'-bromo-2'-deoxyuridine (BrdU) labeling, and the bacterial burden. Serum anti-H. pylori antibody titers were also tested. RESULTS The positive incidence of H. pylori -culture was 25 and 84 % in groups A and B, respectively (p<0.01). Both the degree of inflammation and the BrdU labeling index in group A were significantly lower than those in group B. CONCLUSIONS Rice-fluid showed an antibiotic effect on H. pylori and an anti-inflammatory effect on the H. pylori -associated gastritis.
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Affiliation(s)
- Satoshi Ishizone
- Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
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de Martel C, Parsonnet J. Helicobacter pylori infection and gender: a meta-analysis of population-based prevalence surveys. Dig Dis Sci 2006; 51:2292-301. [PMID: 17089189 DOI: 10.1007/s10620-006-9210-5] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2005] [Accepted: 12/30/2005] [Indexed: 12/12/2022]
Abstract
Although most of Helicobacter pylori-related diseases are associated with male gender, the role of gender as a risk factor for H. pylori infection is still debated. To assess the true association between H. pylori and gender, we conducted a meta-analysis of large, population-based studies where the measure of association had been adjusted at least for age and socioeconomic status, and obtained primary data from authors when information on gender associations were not presented. In 18 adult populations, the test of heterogeneity was not significant and male gender was significantly associated with H. pylori infection (summary odds ratio [OR] 1.16 [95% confidence interval (CI) 1.11, 1.22]). In 10 pediatric populations, the test of heterogeneity was of borderline significance, and the summary OR computed using a random effect model was close to 1 (summary OR 1.03 [95% CI 0.91, 1.17]). This study confirms the male predominance of H. pylori infection in adults as a global and homogeneous phenomenon; such predominance is not apparent in children. Differential antibiotic exposure or differential protective immunity between genders may explain the different results observed between children and adult studies.
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Affiliation(s)
- Catherine de Martel
- Department of Health Research and Policy and Department of Medicine, Stanford University School of Medicine, Grant building Room S125, Stanford, CA 94305, USA.
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Hamajima N, Naito M, Kondo T, Goto Y. Genetic factors involved in the development of Helicobacter pylori-related gastric cancer. Cancer Sci 2006; 97:1129-38. [PMID: 16879717 PMCID: PMC11158109 DOI: 10.1111/j.1349-7006.2006.00290.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Developmental process to gastric cancer by Helicobacter pylori infection consists of three steps: (1) H. pylori infection; (2) gastric atrophy development; and (3) carcinogenesis. In each step, genetic traits may influence the process, interacting with lifestyle. In the step of H. pylori infection, two lines of genetic polymorphisms were assumed: one influencing gastric acid inhibition interacting with smoking, and the other concerning innate immune response attenuation. The former includes functional polymorphisms of IL-1B (C-31T or tightly linked T-511C), and TNF-A (T-1031C and C-857T), and the latter possibly includes NQO1 C609T. In the step to gastric atrophy, polymorphisms pertaining to the signal transduction from cytotoxin-associated gene A (PTPN11 A/G at intron 3) and to T-cell responses (IL-2 T-330G and IL-13 C-1111T) were hypothesized. There are a limited number of epidemiological genotype studies on the final step of literal carcinogenesis, potentially interacting with smoking, a low vegetable and fruit intake, and salty foods, the well-documented risk factors. In past case-control studies on the associations between genotype and gastric cancer risk, the cases consisted of H. pylori-related and unrelated gastric cancer patients and the controls consisted of individuals including the uninfected (H. pylori unexposed and exposed) and the infected with and without gastric atrophy. Accordingly, it was not clear whether the observed risk was for H. pylori-related or -unrelated gastric cancer, nor which step was involved in the observed associations even when nearly all cases were H. pylori-related. In order to elucidate the genetic traits of H. pylori-related gastric cancer, stepwise evaluation will be required.
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Affiliation(s)
- Nobuyuki Hamajima
- Department of Preventive Medicine/Biostatistics and Medical Decision Making, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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Aoki K, Kihaile PE, Wenyuan Z, Xianghang Z, Castro M, Disla M, Nyambo TB, Misumi J. Comparison of prevalence of chronic atrophic gastritis in Japan, China, Tanzania, and the Dominican Republic. Ann Epidemiol 2006; 15:598-606. [PMID: 16118004 DOI: 10.1016/j.annepidem.2004.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2004] [Accepted: 11/05/2004] [Indexed: 12/22/2022]
Abstract
PURPOSE To compare the prevalence of chronic atrophic gastritis (CAG) in Japan, China, Tanzania, and the Dominican Republic and to assess the usefulness of Helicobacter pylori infection and serum gastrin level as markers of CAG. METHODS The subjects were volunteers from local communities in Japan (n=859), China (n=1741), Tanzania (n=573), and the Dominican Republic (n=1215). Each individual underwent a health checkup and blood sampling for measurement of serum pepsinogen I and II, pepsinogen I /II ratio, serum gastrin, and H. pylori antibodies, and responded to a questionnaire on upper digestive tract diseases. RESULTS The prevalences of H. pylori infection (23.5-96.1%), CAG (5.6-60.4%), and serum gastrin (62.0-136.5 pg/ml) varied by age, sex, and country. Serum gastrin level for men differed in each country according to age. In Tanzanian men, the median gastrin level (101.0 pg/ml) was the highest in the 40 to 49 years age group (p < 0.01) while there was no significant difference among different age groups in Tanzanian women. Serum gastrin level in subjects > or = 70 years was higher than in other age groups in both sexes in the Dominican Republic (males, 92.5, females, 136.5 pg/ml). The prevalence of H. pylori infection increased (p < 0.01) with advancing age in Japan (only for women) and the Dominican Republic but was high in all age groups of both sexes in China and Tanzania. The prevalence of CAG increased (p < 0.01) with age in both sexes in Japan, China (women only), and the Dominican Republic, but not in Tanzania. The odds ratio of CAG in H. pylori infected subjects was 5.3 times that in H. pylori-negative subjects. The odds ratio of CAG increased by 0.6%/1 pg/ml increase in serum gastrin. CONCLUSIONS Our results indicated that H. pylori infection, serum gastrin, and advancing age are good markers of CAG and that the prevalence of CAG is the highest in Japan.
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Affiliation(s)
- Kazuo Aoki
- Division of Preventive Medicine, Department of Human Environmental and Social Medicine, Faculty of Medicine, Oita University, Hasama, Oita, Japan.
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Abstract
AIM: To conduct a retrospective study to determine the risk factors for development of metaplastic gastritis in Korean population.
METHODS: The database of 113 449 subjects who underwent a gastroscopy for the purpose of a regular check-up at center for health promotion, Samsung medical center during 5 years was collected and retrospectively analyzed. Among them, 5 847 subjects who had endoscopically diagnosed as a metaplastic gastritis or 10 076 normal as well as answered to questionnaire were included for present study. The subjects were divided into 2 groups; Group I, normal and Group II, metaplastic gastritis. Age, gender, Helicobacter pylori (H pylori) seropositivity, body mass index (BMI), family history of cancer, smoking, alcohol consumption, total daily calories, folate and salt intake and dietary habit (out-eating, overeating, irregular eating) were retrieved from questionnaire or electronic medical record and compared between group I and group II.
RESULTS: The prevalence of group II was 11% (13 578/113 449) increasing its prevalence with age (P = 0.000). But, there was no significant association between 2 groups in BMI, family history of cancer, alcohol consumption, total daily calories, folate and salt intake and dietary habit (out-eating, overeating, irregular eating). Old age (P = 0.000), male gender (P = 0.000), H pylori seropositivity (P = 0.010) and current smoker (P = 0.000) were significantly more common in group II at multiple logistic regression model.
CONCLUSION: Our data suggested that old age, male gender, H pylori seropositivity and smoking were risk factors for metaplastic gastritis, precancerous lesion of gastric cancer.
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Affiliation(s)
- Soonami Choi
- Center for Health Promotion, Samsung Medical Center, Seoul, Korea
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