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      Helicobacter pylori Infection and Coronary Heart Disease in Japanese Patients

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          Abstract

          Although several independent studies have claimed a link between Helicobacter pylori infection and coronary heart disease (CHD), this association has not been established conclusively. The aim was to determine whether an association between H. pylori infection and CHD can be demonstrated in Japanese patients. Three-hundred and four patients who underwent consecutive coronary arteriography were investigated. Ninety-four patients had single-vessel coronary stenosis and 112 had multi-vessel stenosis. The remaining 98 patients had no significant stenosis in any coronary arteries. H. pylori infection was diagnosed serologically and the association between infection and CHD was estimated by the odds ratio. The serum pepsinogen (PG) I-II ratio was used to estimate the degree of gastric atrophy. Seropositivity for H. pylori was significantly higher in the patients with CHD (67%) than in the controls (50%; p = 0.006). The odds ratio for CHD after having H. pylori infection was estimated as 1.35 (95% confidence interval 1.03–1.78; p = 0.028), after adjustment for the common risk factors of CHD in a logistic regression analysis. The association between CHD and H. pylori infection was more significant among patients without any history of diabetes or smoking. The PG I-II ratio in H. pylori-positive patients was significantly higher in the multi-vessel group (3.46) than in the control or single-vessel group (2.86, p = 0.030; 2.78, p = 0.008; respectively). H. pylori infection was shown to be an independent risk factor for CHD in Japanese patients, especially among those who did not have a history of diabetes or smoking. These data imply that the association between H. pylori infection and CHD is clinically relevant.

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          Most cited references 3

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          An international association between Helicobacter pylori infection and gastric cancer

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            Chlamydia pneumoniae is a risk factor for coronary heart disease in symptom-free elderly men, but Helicobacter pylori and cytomegalovirus are not.

            To test the hypothesis that chronic infection with Chlamydia pneumoniae, Helicobacter pylori or cytomegalovirus is associated with coronary heart disease risk in elderly men, a nested case-control study in a cohort investigated in 1985 and 1990 in the town of Zutphen, The Netherlands, was designed. Fifty-four cases with a first diagnosed coronary event between 1985 and 1990, and 108 age-matched control subjects free of coronary heart disease during follow up were included in the study. The overall prevalence of antibodies to cytomegalovirus was 74.7%, to H. pylori 75.9% and to C. pneumoniae 84.0%. A high level of antibodies to C. pneumoniae was associated with an increased coronary heart disease risk (OR = 2.76; 95% CI = 1.31-5.81). This association was stronger in cases developing both myocardial infarction and angina pectoris, than in cases developing only one of these. This association was independent of potential confounders. Antibodies to cytomegalovirus or H. pylori were not associated with coronary heart disease risk. These results support the hypothesis of a role of chronic C. pneumoniae infections in the immunopathogenesis of atherosclerosis.
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              Radioimmunoassay of serum group I and group II pepsinogens in normal controls and patients with various disorders

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                Author and article information

                Journal
                CRD
                Cardiology
                10.1159/issn.0008-6312
                Cardiology
                S. Karger AG
                0008-6312
                1421-9751
                2001
                May 2001
                25 May 2001
                : 95
                : 1
                : 14-19
                Affiliations
                Divisions of aIntegrated Medicine, bAtherosclerosis and Metabolism, and cCardiology, Department of Integrated Medicine, Omiya Medical Center, Jichi Medical School, Omiya City; dDepartment of Community and General Medicine, School of Medicine, Sapporo Medical University, Sapporo City, and eDepartment of Gastroenterology, Jichi Medical School, Minamikawachi, Tochigi, Japan
                Article
                47337 Cardiology 2001;95:14-19
                10.1159/000047337
                11385186
                © 2001 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Tables: 4, References: 26, Pages: 6
                Categories
                General Cardiology

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