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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Is <italic>Helicobacter pylori</italic>
infection associated with glycemic control in diabetics?</title>
<author><name sortKey="Dai, Yi Ning" sort="Dai, Yi Ning" uniqKey="Dai Y" first="Yi-Ning" last="Dai">Yi-Ning Dai</name>
</author>
<author><name sortKey="Yu, Wei Lai" sort="Yu, Wei Lai" uniqKey="Yu W" first="Wei-Lai" last="Yu">Wei-Lai Yu</name>
</author>
<author><name sortKey="Zhu, Hua Tuo" sort="Zhu, Hua Tuo" uniqKey="Zhu H" first="Hua-Tuo" last="Zhu">Hua-Tuo Zhu</name>
</author>
<author><name sortKey="Ding, Jie Xia" sort="Ding, Jie Xia" uniqKey="Ding J" first="Jie-Xia" last="Ding">Jie-Xia Ding</name>
</author>
<author><name sortKey="Yu, Chao Hui" sort="Yu, Chao Hui" uniqKey="Yu C" first="Chao-Hui" last="Yu">Chao-Hui Yu</name>
</author>
<author><name sortKey="Li, You Ming" sort="Li, You Ming" uniqKey="Li Y" first="You-Ming" last="Li">You-Ming Li</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">25954115</idno>
<idno type="pmc">4419082</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4419082</idno>
<idno type="RBID">PMC:4419082</idno>
<idno type="doi">10.3748/wjg.v21.i17.5407</idno>
<date when="2015">2015</date>
<idno type="wicri:Area/Pmc/Corpus">000019</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Is <italic>Helicobacter pylori</italic>
infection associated with glycemic control in diabetics?</title>
<author><name sortKey="Dai, Yi Ning" sort="Dai, Yi Ning" uniqKey="Dai Y" first="Yi-Ning" last="Dai">Yi-Ning Dai</name>
</author>
<author><name sortKey="Yu, Wei Lai" sort="Yu, Wei Lai" uniqKey="Yu W" first="Wei-Lai" last="Yu">Wei-Lai Yu</name>
</author>
<author><name sortKey="Zhu, Hua Tuo" sort="Zhu, Hua Tuo" uniqKey="Zhu H" first="Hua-Tuo" last="Zhu">Hua-Tuo Zhu</name>
</author>
<author><name sortKey="Ding, Jie Xia" sort="Ding, Jie Xia" uniqKey="Ding J" first="Jie-Xia" last="Ding">Jie-Xia Ding</name>
</author>
<author><name sortKey="Yu, Chao Hui" sort="Yu, Chao Hui" uniqKey="Yu C" first="Chao-Hui" last="Yu">Chao-Hui Yu</name>
</author>
<author><name sortKey="Li, You Ming" sort="Li, You Ming" uniqKey="Li Y" first="You-Ming" last="Li">You-Ming Li</name>
</author>
</analytic>
<series><title level="j">World Journal of Gastroenterology : WJG</title>
<idno type="ISSN">1007-9327</idno>
<idno type="eISSN">2219-2840</idno>
<imprint><date when="2015">2015</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><p>AIM: To investigate whether <italic>Helicobacter pylori</italic>
(<italic>H. pylori</italic>
) infection is associated with glycemic control and whether hyperglycemia is modified by eradication therapy.</p>
<p>METHODS: The databases of PubMed, Cochrane Library, Chinese BioMedicine Web Base and Chinese Science and Technology Journals were searched from inception to June 2014. Studies examining the association between <italic>H. pylori</italic>
infection and glycemic control and⁄or the effect of eradication treatment on glycemic control in diabetic humans were eligible for inclusion. Meta-analyses were conducted using the Review Manager software version 5.2. The outcome measures are presented as weighed mean differences (WMDs) with 95% confidence intervals (CIs). Statistical heterogeneity was assessed by the Cochran <italic>Q</italic>
test and the <italic>I</italic>
<sup>2</sup>
statistic.</p>
<p>RESULTS: A total of 21 relevant publications were identified. A meta-analysis of 11 studies with 513 patients with diabetes mellitus (DM) showed significantly lower glycosylated hemoglobin (HbA1c) levels in the <italic>H. pylori</italic>
-negative than <italic>H. pylori</italic>
-positive DM participants (WMD = 0.43, 95%CI: 0.07-0.79; <italic>P</italic>
= 0.02). In children and adolescents with type 1 DM (T1DM), there was a positive association between <italic>H. pylori</italic>
infection and HbA1c level (WMD = 0.35, 95%CI: 0.05-0.64; <italic>P</italic>
= 0.02), but there was no difference in those with type 2 DM (T2DM, WMD = 0.51, 95%CI: -0.63-1.65; <italic>P</italic>
= 0.38). A meta-analysis of six studies with 325 T2DM participants showed a significant difference in the fasting plasma glucose levels between <italic>H. pylori</italic>
-positive and <italic>H. pylori</italic>
-negative participants (WMD = 1.20, 95%CI: 0.17-2.23; <italic>P</italic>
= 0.02). Eradication of <italic>H. pylori</italic>
did not improve glycemic control in the T2DM participants in a three-month follow-up period (HbA1c decrease: WMD = -0.03, 95%CI = -0.14-0.08; <italic>P</italic>
= 0.57; fasting plasma glucose decrease: WMD = -0.06, 95%CI: -0.36-0.23; <italic>P</italic>
= 0.68). Glycemic control was significantly better in T1DM participants who were not reinfected than in those who were reinfected (HbA1c: WMD = 0.72, 95%CI: 0.32-1.13: <italic>P</italic>
= 0.00).</p>
<p>CONCLUSION: <italic>H. pylori</italic>
infection is associated with poorer glycemic control in T1DM patients, but eradication may not improve glycemic control in DM in a short-term follow-up period.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">World J Gastroenterol</journal-id>
<journal-id journal-id-type="iso-abbrev">World J. Gastroenterol</journal-id>
<journal-id journal-id-type="publisher-id">WJG</journal-id>
<journal-title-group><journal-title>World Journal of Gastroenterology : WJG</journal-title>
</journal-title-group>
<issn pub-type="ppub">1007-9327</issn>
<issn pub-type="epub">2219-2840</issn>
<publisher><publisher-name>Baishideng Publishing Group Inc</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">25954115</article-id>
<article-id pub-id-type="pmc">4419082</article-id>
<article-id pub-id-type="other">jWJG.v21.i17.pg5407</article-id>
<article-id pub-id-type="doi">10.3748/wjg.v21.i17.5407</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Meta-Analysis</subject>
</subj-group>
</article-categories>
<title-group><article-title>Is <italic>Helicobacter pylori</italic>
infection associated with glycemic control in diabetics?</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Dai</surname>
<given-names>Yi-Ning</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Yu</surname>
<given-names>Wei-Lai</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Zhu</surname>
<given-names>Hua-Tuo</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Ding</surname>
<given-names>Jie-Xia</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Yu</surname>
<given-names>Chao-Hui</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Li</surname>
<given-names>You-Ming</given-names>
</name>
</contrib>
<aff>Yi-Ning Dai, Wei-Lai Yu, Hua-Tuo Zhu, Jie-Xia Ding, Chao-Hui Yu, You-Ming Li, Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China</aff>
</contrib-group>
<author-notes><fn><p>Author contributions: Dai YN, Yu WL and Li YM proposed the study; Dai YN, Yu WL, Zhu HT and Ding JX collected the data; Dai YN, Yu WL, Zhu HT, Ding JX and Yu CH analyzed and interpreted the data; Dai YN and Yu WL drafted the manuscript; Yu CH and Li YM revised the manuscript; All the authors contributed to the design of the study and interpretation of its findings, and read and approved the final version to be published.</p>
<p>Correspondence to: You-Ming Li, MD, Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou 310003, Zhejiang Province, China. <email>li_youming1956@163.com</email>
</p>
<p>Telephone: +86-571-87236532 Fax: +86-571-87236532</p>
</fn>
</author-notes>
<pub-date pub-type="ppub"><day>7</day>
<month>5</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub"><day>7</day>
<month>5</month>
<year>2015</year>
</pub-date>
<volume>21</volume>
<issue>17</issue>
<fpage>5407</fpage>
<lpage>5416</lpage>
<history><date date-type="received"><day>24</day>
<month>7</month>
<year>2014</year>
</date>
<date date-type="rev-recd"><day>31</day>
<month>10</month>
<year>2014</year>
</date>
<date date-type="accepted"><day>8</day>
<month>12</month>
<year>2014</year>
</date>
</history>
<permissions><copyright-statement>©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.</copyright-statement>
<copyright-year>2015</copyright-year>
</permissions>
<abstract><p>AIM: To investigate whether <italic>Helicobacter pylori</italic>
(<italic>H. pylori</italic>
) infection is associated with glycemic control and whether hyperglycemia is modified by eradication therapy.</p>
<p>METHODS: The databases of PubMed, Cochrane Library, Chinese BioMedicine Web Base and Chinese Science and Technology Journals were searched from inception to June 2014. Studies examining the association between <italic>H. pylori</italic>
infection and glycemic control and⁄or the effect of eradication treatment on glycemic control in diabetic humans were eligible for inclusion. Meta-analyses were conducted using the Review Manager software version 5.2. The outcome measures are presented as weighed mean differences (WMDs) with 95% confidence intervals (CIs). Statistical heterogeneity was assessed by the Cochran <italic>Q</italic>
test and the <italic>I</italic>
<sup>2</sup>
statistic.</p>
<p>RESULTS: A total of 21 relevant publications were identified. A meta-analysis of 11 studies with 513 patients with diabetes mellitus (DM) showed significantly lower glycosylated hemoglobin (HbA1c) levels in the <italic>H. pylori</italic>
-negative than <italic>H. pylori</italic>
-positive DM participants (WMD = 0.43, 95%CI: 0.07-0.79; <italic>P</italic>
= 0.02). In children and adolescents with type 1 DM (T1DM), there was a positive association between <italic>H. pylori</italic>
infection and HbA1c level (WMD = 0.35, 95%CI: 0.05-0.64; <italic>P</italic>
= 0.02), but there was no difference in those with type 2 DM (T2DM, WMD = 0.51, 95%CI: -0.63-1.65; <italic>P</italic>
= 0.38). A meta-analysis of six studies with 325 T2DM participants showed a significant difference in the fasting plasma glucose levels between <italic>H. pylori</italic>
-positive and <italic>H. pylori</italic>
-negative participants (WMD = 1.20, 95%CI: 0.17-2.23; <italic>P</italic>
= 0.02). Eradication of <italic>H. pylori</italic>
did not improve glycemic control in the T2DM participants in a three-month follow-up period (HbA1c decrease: WMD = -0.03, 95%CI = -0.14-0.08; <italic>P</italic>
= 0.57; fasting plasma glucose decrease: WMD = -0.06, 95%CI: -0.36-0.23; <italic>P</italic>
= 0.68). Glycemic control was significantly better in T1DM participants who were not reinfected than in those who were reinfected (HbA1c: WMD = 0.72, 95%CI: 0.32-1.13: <italic>P</italic>
= 0.00).</p>
<p>CONCLUSION: <italic>H. pylori</italic>
infection is associated with poorer glycemic control in T1DM patients, but eradication may not improve glycemic control in DM in a short-term follow-up period.</p>
</abstract>
<kwd-group><kwd>Diabetes mellitus</kwd>
<kwd>Eradication</kwd>
<kwd>Glycemic control</kwd>
<kwd><italic>Helicobacter pylori</italic>
</kwd>
<kwd>Meta-analysis</kwd>
<kwd>Reinfection</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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