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Oliveira APG, de Matos GDCB, Vieira MCDS, Corvelo TCDO. Retrospective cohort study of the MTHFR C677T/A1298C polymorphisms and human homocysteine levels in Helicobacter pylori infection. Diagn Microbiol Infect Dis 2024; 109:116243. [PMID: 38579505 DOI: 10.1016/j.diagmicrobio.2024.116243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/16/2024] [Accepted: 03/04/2024] [Indexed: 04/07/2024]
Abstract
This study avalited relationship between human Methylenetetrahydrofolate reductase (MTHFR) gene (C677T(rs1801133)/A1298C(rs1801131)) variants and homocysteine levels in 168 patients who are infected with Helicobacter pylori, diagnosed to PCR analysis. PCR-RFLP methods were performed to characterize the MTHFR gene C677T/A1298C variants in DNA samples obtained from gastric biopsies this patients. An immunoenzymatically assay was used for quantitative of total homocysteine and folate levels in the plasma of the same individuals. The adopted level statistical significance was to α = 0.05. The frequency of the C677T SNP was higher in infected individuals, wherein those with the CT/TT genotype presented a three-fold higher risk of acquiring Helicobacter pylori infection. The averages of the total homocysteine concentrations were associated with the TT genotype, advanced age and the male sex, but no dependence relationship was found with Helicobacter pylori infection.
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Affiliation(s)
- Andreza Paloma Góes Oliveira
- Institute of Biological Sciences, Federal University of Pará - UFPA, R. Augusto Corrêa, 01 - Guamá, Belém PA, 66075-110. Brazil
| | | | - Marcelo Cleyton da Silva Vieira
- Institute of Biological Sciences, Federal University of Pará - UFPA, R. Augusto Corrêa, 01 - Guamá, Belém PA, 66075-110. Brazil
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Zandian H, Zahirian Moghadam T, Pourfarzi F, Malekzadeh R, Rezaei S, Ghorbani S. Gastric troubles in Iran: The role of social and economic factors in Helicobacter pylori infection. Health Promot Perspect 2023; 13:120-128. [PMID: 37600545 PMCID: PMC10439454 DOI: 10.34172/hpp.2023.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/30/2023] [Indexed: 08/22/2023] Open
Abstract
Background Helicobacter pylori infection is a major risk factor for gastric cancer in Iran, but the impact of socioeconomic factors on its prevalence is poorly understood. This study aimed to assess the socioeconomic inequalities and risk factors associated with H. pylori infection in Iran. Methods This cross-sectional study was conducted based on the PERSIAN cohort study. A total of 20460 individuals aged 35 to 70 years in Ardabil, Iran were included in the study. H. pylori infection was determined based on stool tests and clinical records. Multilevel logistic regression models with random intercepts at household and community levels were used to identify risk factors associated with H. pylori prevalence. The concentration index (CIn) and concentration curve (CC) were employed to assess socioeconomic-related inequality. Results In this study, 70.4% (CI 69.6-71.0) of the participants were infected with H. pylori, with a higher prevalence in women (71.2%) than men (69.6%). Age (OR: 1.37, CI: 1.17-1.61), sex (OR: 1.20, CI: 1.12-1.28), level of education (OR: 1.33, CI: 1.17-1.49), cardiac disease (OR: 1.32, CI:1.18-1.46), and BMI groups (OR: 2.49, CI: 1.11-5.58) were significantly associated with H. pylori infection based on the multivariable logistic regression. The results of the CIn and CC indicated that H. pylori were more prevalent among economically disadvantaged groups (CIn: -0.1065; [-0.1374 to -0.0755]). Conclusion The prevalence of H. pylori in Iran is higher than in other developing countries, and significant socioeconomic inequality exists between the poor and the rich. To reduce the rate of gastric cancer, socio-economic and demographic factors, especially the poor and people with low levels of education, should be considered.
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Affiliation(s)
- Hamed Zandian
- Centre for Public Health and Wellbeing, School of Health and Social Wellbeing, College of Health, Science and Society, University of the West of England, Bristol, UK
- Social Determinants of Health Research center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Telma Zahirian Moghadam
- Social Determinants of Health Research center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farhad Pourfarzi
- Digestive Disease Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Reza Malekzadeh
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Shariati Hospital, Tehran University of Medical Sciences School of Commerce, Tehran, Iran
| | - Satar Rezaei
- Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sevda Ghorbani
- Department of Community Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Ravikumara M. Helicobacter pylori in children: think before you kill the bug! Therap Adv Gastroenterol 2023; 16:17562848231177610. [PMID: 37361453 PMCID: PMC10285598 DOI: 10.1177/17562848231177610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/06/2023] [Indexed: 06/28/2023] Open
Abstract
Since the discovery of Helicobacter pylori (H. pylori) as the causative organism for gastric and duodenal ulcers four decades ago and subsequent recognition as class 1 gastric carcinogen, countless numbers of studies have been conducted and papers published, on the efficacy of various management strategies to eradicate the infection. In adults, a global consensus by the experts in the field concluded that H. pylori gastritis is an infectious disease and requires treatment irrespective of the presence or absence of symptoms due to the potential for serious complication like peptic ulcer disease and gastric neoplasia. However, although more than half the world's population harbors H. pylori, these serious complications occur only in a small minority of the infected population, even less so in childhood. More importantly, there is accumulating evidence for beneficial role of H. pylori against many chronic health conditions, from several epidemiological and laboratory studies. No doubt, eradication therapy is indicated in children with H. pylori-related peptic ulcer disease. Even though the pediatric guidelines from various learned societies recommend against a "test and treat" strategy, this is not always adhered to. With the accumulating evidence of the possible beneficial role of H. pylori, it is time to pause and think, are we causing more harm than good by eradicating H. pylori in every child who has this bug?
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Rajindrajith S, Gunawardane D, Kuruppu C, Dharmaratne SD, Gunawardena NK, Devanarayana NM. Epidemiology of aerophagia in children and adolescents: A systematic review and meta-analysis. PLoS One 2022; 17:e0271494. [PMID: 35905055 PMCID: PMC9337652 DOI: 10.1371/journal.pone.0271494] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 07/01/2022] [Indexed: 11/22/2022] Open
Abstract
Background Aerophagia is a common functional gastrointestinal disorder among children. The disease leads to symptoms related to air in the intestine leading to burping, abdominal distension, and excessive flatus. We aimed to perform a systematic review and a meta-analysis to assess the epidemiology of aerophagia in children. Methods We conducted a thorough electronic databases (MEDLINE, EMBASE, PsycINFO and Web of Science) search for all epidemiological surveys conducted in children on aerophagia. All selected studies were assessed for their scientific quality and the extracted data were pooled to create a pooled prevalence of aerophagia. Results The initial search identified 76 titles. After screening and in depth reviewing, 19 studies representing data from 21 countries with 40129 children and adolescents were included in the meta-analysis. All studies have used standard Rome definitions to diagnose aerophagia. The pooled prevalence of aerophagia was 3.66% (95% Confidence interval 2.44–5.12). There was significant heterogeneity between studies [I2 98.06% with 95% Confidence interval 97.70–98.37). There was no gender difference in prevalence of aerophagia in children. The pooled prevalence of aerophagia was highest in Asia (5.13%) compared to other geographical regions. Conclusion In this systematic review and meta-analysis, we found aerophagia has a significant prevalence across the world.
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Affiliation(s)
- Shaman Rajindrajith
- Department of Pediatrics, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
- The Lady Ridgeway Hospital for Children, Colombo, Sri Lanka
- * E-mail:
| | - Damitha Gunawardane
- Department of Community Medicine, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Chandrani Kuruppu
- Medical Library, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Samath D. Dharmaratne
- Department of Community Medicine, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Nipul K. Gunawardena
- Department of Parasitology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
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Gastric herpes simplex virus type 1 infection is associated with functional gastrointestinal disorders in the presence and absence of comorbid fibromyalgia: a pilot case-control study. Infection 2022; 50:1303-1311. [PMID: 35445970 PMCID: PMC9522778 DOI: 10.1007/s15010-022-01823-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/31/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Animal studies have linked gastric herpesvirus infections to symptoms associated with functional gastrointestinal disorders (FGIDs). Herpesviruses have also been hypothesized to contribute to fibromyalgia (FM), a chronic pain syndrome frequently comorbid with FGIDs. The purpose of this study was to compare the prevalence of gastric herpesvirus infection in patients with FGIDs, with and without comorbid FM, to that of controls. METHODS For this pilot case-control study, we enrolled 30 patients who met both the Rome IV diagnostic criteria for one or more FGIDs and the American College of Rheumatology 2010 criteria for FM, 15 patients with one or more FGIDs without comorbid FM, and 15 control patients. Following endoscopic examination, gastric biopsies were analyzed for herpesvirus DNA and protein, Helicobacter pylori infection, and histological evidence of gastritis. Importantly, the viral nonstructural protein ICP8 was used as a marker to differentiate cell-associated actively replicating virus from latent infection and/or free virus passing through the GI tract. RESULTS Gastric herpes simplex virus type 1 (HSV-1) infection, as indicated by ICP8 presence, was significantly associated with FGIDs in the presence (OR 70.00, 95% CI 7.42-660.50; P < .001) and absence (OR 38.50, 95% CI 3.75-395.40; P < .001) of comorbid FM. Neither histological gastritis nor H. pylori infection were found to be associated with FGIDs or FM. CONCLUSIONS HSV-1 infection was identified in gastric mucosal biopsies from patients with diverse FGIDs, with and without comorbid FM. Larger, multi-center studies investigating the prevalence of this association are warranted.
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Jiang T, Chen X, Xia C, Liu H, Yan H, Wang G, Wu Z. Association between Helicobacter pylori infection and non-alcoholic fatty liver disease in North Chinese: a cross-sectional study. Sci Rep 2019; 9:4874. [PMID: 30890750 PMCID: PMC6425019 DOI: 10.1038/s41598-019-41371-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/07/2019] [Indexed: 12/17/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a common liver disease. Previous studies on the association between Helicobacter pylori (HP) infection and NAFLD are inconsistent. Our study was aimed to find out the relationship between HP infection and NAFLD. We performed a large cross-sectional study in northern Chinese adults in 2015. 13C-urea breath tests were used to determine HP infection status. Abdominal ultrasonography was performed to diagnose NAFLD. Multivariable logistic regression was conducted to identify the association between HP infection and NAFLD. A total of 4081 individuals were included in this study; 2137 (52.36%) participants were HP-positive, and 1022 (47.82%) were diagnosed with NAFLD in HP-positive individuals. The odds ratios (OR) and 95% confidence intervals (CI) of participants with HP infection for NAFLD were 1.20 (1.06–1.36) in crude model and 1.27 (1.07–1.50) in fully adjusted model. When stratified by sex and dyslipidemia, the fully adjusted OR and 95% CI for NAFLD were 1.22 (1.10–1.80) in females and 1.44 (1.18–1.75) in subjects with dyslipidemia. There were not significant increased OR for NAFLD when stratified by age. The study indicate that HP infection is associated with NAFLD, particularly in females and patients with dyslipidemia, suggesting that HP eradication might be an alternative method for the prevention or treatment of NAFLD treatment.
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Affiliation(s)
- Tian Jiang
- Research Center for Translational Medicine, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Xia Chen
- Department of Gastroenterology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Chenmei Xia
- Department of Gastroenterology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Huamin Liu
- School of Public Health, Taishan Medical University, Tai'an, 271000, China
| | - Haifan Yan
- Department of Gastroenterology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Guoping Wang
- Department of Gastroenterology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China
| | - Zhongbiao Wu
- Department of Urology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, 317500, Zhejiang, China.
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Hu TG, Wen P, Fu HZ, Lin GY, Liao ST, Zou YX. Protective effect of mulberry (Morus atropurpurea) fruit against diphenoxylate-induced constipation in mice through the modulation of gut microbiota. Food Funct 2019; 10:1513-1528. [DOI: 10.1039/c9fo00132h] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The protective effect of mulberry (Morus atropurpurea) fruit against diphenoxylate-induced constipation in mice through the modulation of gut microbiota.
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Affiliation(s)
- Teng-Gen Hu
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
- School of Food Science and Engineering
| | - Peng Wen
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
- School of Food Science and Engineering
| | - Hui-Zhan Fu
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
| | - Guang-Yue Lin
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
| | - Sen-Tai Liao
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
| | - Yu-Xiao Zou
- Sericultural & Agri-Food Research Institute
- Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods
- Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing
- China
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Kori M, Daugule I, Urbonas V. Helicobacter pylori and some aspects of gut microbiota in children. Helicobacter 2018; 23 Suppl 1:e12524. [PMID: 30203591 DOI: 10.1111/hel.12524] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Helicobacter pylori infection in children differs from infection in adults in many aspects. The rate of infection, epidemiology, clinical presentations and complications, the applicability of diagnostic tests, antibiotic resistance, treatment options, and success rates differ significantly. Due to all these differences, management guidelines for children and adults differ also substantially. In 2017, the Updated ESPGHAN and NASPGHAN Guidelines on the management of H. pylori infection in children were published, emphasizing the differences in clinical presentation and indications for treatment, stating that the primary goal of clinical investigation in children is to identify the cause of upper gastrointestinal symptoms rather than the presence of H. pylori infection. Therefore, the diagnosis should be based on upper endoscopy, and the "test and treat strategy" should not be used in children. Due to an increasing rate of antibiotic resistance worldwide, the updated guidelines recommend broader use of antimicrobial susceptibility testing for H. pylori strains in order to tailor eradication treatment accordingly. Moreover, treatment in children should be prescribed only when indicated and should be based on the rate of eradication in local populations aiming for treatment success above 90%. During the last two decades there has been a steady decrease in the rate of H. pylori infection in both children and adults in the Western world. Two recent publications studying the incidence of H. pylori infection confirmed that early childhood is a time for acquisition of infection both in industrialized and nonindustrialized countries. In addition, they showed that H. pylori could be acquired outside the family. In respect to the inverse association between H. pylori and allergy, a longitudinal study demonstrated that early exposure to H. pylori at any age was inversely associated with atopy and allergic conditions.
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Affiliation(s)
- Michal Kori
- Pediatric Gastroenterology, Kaplan Medical Center, Rehovot, Israel
| | - Ilva Daugule
- Faculty of Medicine, University of Latvia, Riga, Latvia.,Institute of Clinical and Preventive Medicine, University of Latvia, Riga, Latvia
| | - Vaidotas Urbonas
- Clinic of Children's Diseases, Vilnius University Medical Faculty, Vilnius, Lithuania
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Prevalence of Functional Defecation Disorders in Children: A Systematic Review and Meta-Analysis. J Pediatr 2018; 198:121-130.e6. [PMID: 29656863 DOI: 10.1016/j.jpeds.2018.02.029] [Citation(s) in RCA: 155] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/19/2018] [Accepted: 02/13/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To systematically review the literature regarding the epidemiology of functional constipation and functional nonretentive fecal incontinence (FNRFI) in children. Secondary objectives were to assess the geographical, age, and sex distribution of functional constipation and FNRFI and to evaluate associated factors. STUDY DESIGN The Cochrane Library, PubMed, and Embase databases were searched from 2006 until September 2017. The following inclusion criteria were applied: (1) prospective studies of population-based samples; (2) reporting on the prevalence of functional constipation or FNRFI according to the Rome III/IV criteria; (3) in children aged 0-18 years; and (4) published in full manuscript form. A quality assessment of included studies was conducted. Random effect meta-analyses with meta-regression analyses of study characteristics were performed. RESULTS Thirty-seven studies were included, of which 35 reported on the prevalence of functional constipation and 15 of FNRFI. The reported prevalence of functional constipation ranged from 0.5% to 32.2%, with a pooled prevalence of 9.5% (95% CI 7.5-12.1). The prevalence of FRNFI ranged from 0.0% to 1.8%, with a pooled prevalence of 0.4% (95% CI 0.2-0.7). The prevalence of functional constipation was 8.6% in boys compared with 8.9% in girls (OR 0.99, 95% CI 0.9-1.4). Geographical location, dietary habits, and exposure to stressful life events were reported to be associated with the prevalence of functional constipation. Data on FNRFI were scarce and no associated factors were identified. CONCLUSION Functional constipation is common in childhood and is associated with geographical location, lifestyle factors, and stressful life events. FNRFI is rare, and no associated factors were identified.
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