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Prevalence of gastroduodenitis and Helicobacter priori infection in a general population sample: relations to symptomatology and life-style
Linköping University, Department of Biomedicine and Surgery, Surgery. Linköping University, Faculty of Health Sciences.
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2000 (English)In: Digestive Diseases and Sciences, ISSN 0163-2116, E-ISSN 1573-2568, Vol. 45, no 7, 1322-1329 p.Article in journal (Refereed) Published
Abstract [en]

Some benign and malignant diseases develop on the background of chronic gastritis or duodenitis. The present study was performed in order to determine the magnitude of these background changes with relations to symptomatology and life style in the general population. Examinations were performed in 501 volunteers (age 35–85 years). Fifty percent had gastritis; this was associated with H. pylori in 87%. H. pylori-negative gastritis was associated with regular use of NSAIDs [odds ratio 3.8 (1.6–9.9)]. Duodenitis, observed in 32%, was associated with H. pylori infection [odds ratio 2.3 (1.3–4.6)], previous cholecystectomy [odds ratio 3.6 (1.1–16.1)], and regular use of NSAIDs [odds ratio 3.0 (1.4–7.1)]. Neither gastritis nor duodenitis was associated with smoking or alcohol consumption. The rate of digestive symptoms did not differ between subjects with and without uncomplicated gastritis or duodenitis. In conclusion, half of this adult population had gastritis strongly associated with H. pylori infection. Gastritis without H. pylori infection was frequently associated with regular NSAID intake. One third had duodenitis, which was associated with H. pylori infection as well as with regular use of NSAIDs and previous cholecystectomy. Digestive symptoms were not overrepresented in uncomplicated gastritis or duodenitis.

Place, publisher, year, edition, pages
2000. Vol. 45, no 7, 1322-1329 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-24959DOI: 10.1023/A:1005547802121Local ID: 9370OAI: oai:DiVA.org:liu-24959DiVA: diva2:245283
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13
In thesis
1. Chronic gastritis in a sample of the general population: Helicobacter pylori infection, metaplastic transformation, epithelial proliferation, p53- and p21 expression and antral mucosal gastrin content with reference to gastric carcinoma development
Open this publication in new window or tab >>Chronic gastritis in a sample of the general population: Helicobacter pylori infection, metaplastic transformation, epithelial proliferation, p53- and p21 expression and antral mucosal gastrin content with reference to gastric carcinoma development
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Infection with H. pylori is the main cause of chronic inflammation in the stomach. lt is strongly associated with benign ulcer disease and a risk factor for gastric carcinoma (GC). Different tophographical types of gastritis bear different risks for future development of GC. Mucosal changes, atrophy and intestinal metaplasia (IM) are known precancerous conditions.

The aims of this thesis were to map out the prevalence of chronic gastritis, including different tophographical types, carditis and H. pylori infection in an adult Swedish general population sample. To determine the prevalence of atrophy and different types of IM and measure the mucosal proliferative activity (Ki-67), expression of p53 and p21 with immunohistochemistry. Furthermore, to determine plasma levels of gastrin and the content of G-cells in the antrum with immunohistochemistry measured with three different morphometrical methods.

The prevalence of chronic gastritis was 50%. lt was associated with H. pylori infection in 87%. The prevalence of carditis was 55% and it was associated with local H. pylori infection in 70%. The most common type of gastritis was antrum predominant (44%) followed by pangastritis (37%) and corpus predominant (19%). The prevalence of atrophy (antrum and/or corpus) was 55% and it increased with age, as did the prevalence of IM, which was present in the antrum or corpus in 23% and in the cardia in 10%. Corresponding figures for the prevalence of type III IM was 4% and 1%, repspectively. In all locations there was a strong correlation between the occurrence of IM and both H. pylori infection and chronic inflammation. Chronic inflammation and H. pylori infection were associated with increased mucosal proliferation and expression of p53. Atrophy as well as IM were associated with increased expression of p53 in both the corpus and antrum. IM was associated with increased proliferation in the mucosa, as was atrophy in the corpus. The expression of p21 was low and not affected by infection or inflammation. Plasma levels of gastrin were increased in subjects with H. pylori infection and showed no correlation with the amount of antral G-cells. The three different methods for G-cell quantification correlated poorly.

In conclusion,chronic gastritis and carditis in this sample of an adult Swedish general population were frequent and strongly associated with H. pylori infection. The prevalences of different gastritis types and mucosal changes associated with increased cancer risk were determined and the relationships between chronic gastritis/carditis and both increased mucosal proliferation and expression of p53 in all parts of the stomach were established. Increased plasma levels of gastrin among subejects with H. pylori infection were established, as was the lack of a correlation between circulating gastrin levels and the amount of G-cells in the antrum. Poor correlations between three different methods for G-cell quantification highlight a methodological problem.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2004. 85 p.
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 855
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-23315 (URN)2744 (Local ID)91-7373-831-X (ISBN)2744 (Archive number)2744 (OAI)
Public defence
2004-09-24, Aulan, Länssjukhuset, Ryhov, Jönköping, 10:00 (Swedish)
Opponent
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2012-10-31Bibliographically approved

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Borch, KurtPetersson, FredrikRedéen, StefanMårdh, Sven

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