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Public Library of Science, PLoS ONE, 3(5), p. e9645, 2010

DOI: 10.1371/journal.pone.0009645

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Ethnic and Geographic Differentiation of Helicobacter pylori within Iran

Journal article published in 2010 by Saeid Latifi-Navid, Seyed Ali Ghorashi, Farideh Siavoshi, Bodo Linz, Sadegh Massarrat, Tanya Khegay, Ali-Hatef Salmanian, Ali Akbar Shayesteh, Mohsen Masoodi, Koroush Ghanadi, Azita Ganji, Sebastian Suerbaum, Mark Achtman, Reza Malekzadeh ORCID, Daniel Falush
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The bacterium Helicobacter pylori colonizes the human stomach, with individual infections persisting for decades. The spread of the bacterium has been shown to reflect both ancient and recent human migrations. We have sequenced housekeeping genes from H. pylori isolated from 147 Iranians with well-characterized geographical and ethnic origins sampled throughout Iran and compared them with sequences from strains from other locations. H. pylori from Iran are similar to others isolated from Western Eurasia and can be placed in the previously described HpEurope population. Despite the location of Iran at the crossroads of Eurasia, we found no evidence that the region been a major source of ancestry for strains across the continent. On a smaller scale, we found genetic affinities between the H. pylori isolated from particular Iranian populations and strains from Turks, Uzbeks, Palestinians and Israelis, reflecting documented historical contacts over the past two thousand years.