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Ozbey G, Dogan Y, Demiroren K, Ozercan IH. Prevalence of Helicobacter pylori in children in eastern Turkey and molecular typing of isolates. Braz J Microbiol 2015; 46:505-11. [PMID: 26273266 PMCID: PMC4507543 DOI: 10.1590/s1517-838246220140234] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 09/30/2014] [Indexed: 12/19/2022] Open
Abstract
The objectives of the present study were to determine Helicobacter
pylori via culture, polymerase chain reaction and histopathological
diagnosis in 101 children ranging in age from 4 to 18 years, to identify the
association among restriction fragment length polymorphism types and clinical
disease and to investigate the relationships among different isolates of
H. pylori in different age groups. We observed a high
prevalence of H. pylori infections in children between the ages
of 13 and 18 (75.8%), while children aged 4 to 6 years had the lowest prevalence
of infection (40%). H. pylori was detected in 30.7% (31 of
101), 66.3% (67 of 101) and 63.2% (60 of 95) of children as determined by
culture methods, PCR and histological examination, respectively. H.
pylori isolates with RFLP types I and III were the most common
among children with antral nodularity, whereas RFLP types II and IV were the
least detected types. Interestingly, all isolates from peptic ulcer patients
were type III. Although our results show a high prevalence of H.
pylori infections in the pediatric population in eastern Turkey, no
association was identified between H. pylori infection with
antral nodularity and recurring abdominal pain. In addition, we found low
genetic variation among H. pylori isolates from children and no
association between RFLP types and antral nodularity (p > 0.05).
Additionally, we found that H. pylori isolates with specific
RFLP types were predominant in different age groups.
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Affiliation(s)
- Gokben Ozbey
- Firat University, Vocational School of Health Services, Firat University, Elazig, Turkey, Vocational School of Health Services, Firat University, Elazig, Turkey
| | - Yasar Dogan
- Firat University, Department of Pediatric Gastroenterology, Faculty of Medicine, Firat University, Elazig, Turkey, Department of Pediatric Gastroenterology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Kaan Demiroren
- Firat University, Department of Pediatric Gastroenterology, Faculty of Medicine, Firat University, Elazig, Turkey, Department of Pediatric Gastroenterology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Ibrahim Hanifi Ozercan
- Firat University, Department of Pathology, Faculty of Medicine, Firat University, Elazig, Turkey, Department of Pathology, Faculty of Medicine, Firat University, Elazig, Turkey
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Roesler BM, Costa SCB, Zeitune JMR. Eradication Treatment of Helicobacter pylori Infection: Its Importance and Possible Relationship in Preventing the Development of Gastric Cancer. ISRN GASTROENTEROLOGY 2012; 2012:935410. [PMID: 22778979 PMCID: PMC3384894 DOI: 10.5402/2012/935410] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Accepted: 03/17/2012] [Indexed: 12/18/2022]
Abstract
Helicobacter pylori is the most important carcinogen for gastric adenocarcinoma. Bacterial virulence factors are essential players in modulating the immune response involved in the initiation of carcinogenesis in the stomach; host genetic factors contribute to the regulation of the inflammatory response and to the aggravation of mucosal damage. In terms of environmental factors, salt intake and smoking contribute to the development of lesions. Various therapeutic schemes are proposed to eradicate H. pylori infection, which could potentially prevent gastric cancer, offering the greatest benefit if performed before premalignant changes of the gastric mucosa have occurred.
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Affiliation(s)
- Bruna Maria Roesler
- Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), 13.081-970 Campinas, SP, Brazil
- Center of Diagnosis of Digestive Diseases, Faculty of Medical Sciences, State University of Campinas (UNICAMP), 13.081-970 Campinas, SP, Brazil
| | - Sandra Cecília Botelho Costa
- Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), 13.081-970 Campinas, SP, Brazil
| | - José Murilo Robilotta Zeitune
- Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), 13.081-970 Campinas, SP, Brazil
- Center of Diagnosis of Digestive Diseases, Faculty of Medical Sciences, State University of Campinas (UNICAMP), 13.081-970 Campinas, SP, Brazil
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