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Studies describing micronutrient levels in <jats:italic>H.\u00a0pylori\u2010<\/jats:italic>infected and not\u2010infected adults and\/or the effect of eradication treatment on micronutrient levels were included.<\/jats:p><jats:p><jats:bold>Findings:\u2002<\/jats:bold> Fifty\u2010two publications were selected: 46 investigated the association between <jats:italic>H.\u00a0pylori<\/jats:italic> infection and reduced micronutrient levels and 14 the effect of eradication treatment on micronutrient levels. Sixty\u2010four studies investigated vitamins (23 ascorbic acid, four \u00df\u2010carotene, 21 cobalamin, 11 folate, and five \u03b1\u2010tocopherol) and 10 addressed minerals (one calcium, one copper, one magnesium, one phosphorus, three selenium, and three zinc). Pooled standardized mean differences in micronutrient levels showed positive associations with <jats:italic>H.\u00a0pylori<\/jats:italic> infection for ascorbic acid (gastric juice, \u22121.087) and cobalamin (\u22120.744), and a positive effect of eradication treatment, which increased ascorbic acid in the gastric juice (\u22121.408) and serum cobalamin (\u22121.910). No significant association between infection and low folate levels was observed. Meta\u2010analyses for other micronutrients were not performed owing to insufficient data.<\/jats:p><jats:p><jats:bold>Conclusions:\u2002<\/jats:bold> Meta\u2010analyses indicate that <jats:italic>H.\u00a0pylori<\/jats:italic> infection is associated with reduced levels of ascorbic acid and cobalamin, supported by the positive effect of eradication treatment. For other micronutrients, further studies are needed.<\/jats:p>","DOI":"10.1111\/j.1523-5378.2011.00892.x","type":"journal-article","created":{"date-parts":[[2012,1,5]],"date-time":"2012-01-05T09:33:54Z","timestamp":1325756034000},"page":"1-15","source":"Crossref","is-referenced-by-count":65,"title":["Micronutrients (Other than iron) and <i>Helicobacter pylori<\/i> Infection: A Systematic Review"],"prefix":"10.1111","volume":"17","author":[{"given":"Edith","family":"Lahner","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Severino","family":"Persechino","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno","family":"Annibale","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,1,3]]},"reference":[{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra020542"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrc703"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.10.4.720"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1286-4579(03)00112-6"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1523-5378.2008.00634.x"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2036.2004.02265.x"},{"issue":"2","key":"e_1_2_8_8_2","first-page":"S72","article-title":"Consequences of Helicobacter pylori infection on the absorption of micronutrients","volume":"34","author":"Annibale B","year":"2001","journal-title":"Dig Liver Dis"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1590-8658(03)00067-7"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1159\/000107673"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/32.2.368"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/62.6.1315S"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2036.1998.00006.x"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.1024\/0300-9831.69.3.220"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.nu.09.070189.001415"},{"key":"e_1_2_8_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-8553(05)70138-2"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.1152\/ajpgi.1998.274.6.G1011"},{"key":"e_1_2_8_18_2","doi-asserted-by":"publisher","DOI":"10.1136\/gut.2005.071779"},{"key":"e_1_2_8_19_2","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.v9.i10.2137"},{"key":"e_1_2_8_20_2","doi-asserted-by":"publisher","DOI":"10.2174\/138955708783498177"},{"key":"e_1_2_8_21_2","doi-asserted-by":"publisher","DOI":"10.1159\/000073341"},{"key":"e_1_2_8_22_2","doi-asserted-by":"publisher","DOI":"10.1007\/s13312-010-0017-2"},{"key":"e_1_2_8_23_2","first-page":"886","article-title":"Does Helicobacter pylori infection play a role in iron deficiency anemia? 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