Letters To The Editor
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Mar 21, 2015; 21(11): 3447-3448
Published online Mar 21, 2015. doi: 10.3748/wjg.v21.i11.3447
Cobalamin deficiency as an extra intestinal manifestation of Helicobacter pylori infection
Emmanuel Andrès
Emmanuel Andrès, Department of Internal Medicine, University Hospital of Strasbourg, 67000 Strasbourg, France
Author contributions: Andrès E wrote the paper.
Conflict-of-interest: Professor Emmanuel Andrès has received fees for serving as a speaker, as a consultant and as an advisory board member for the Laboratories: BMS, Pfizer, GSK, Ferring. Professor Emmanuel Andrès has received research funding from the French Research Agency.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Emmanuel Andrès, Professor of Internal Medicine, Department of Internal medicine, University Hospital of Strasbourg, 67000 Strasbourg, France. emmanuel.andres@chru-strasbourg.fr
Telephone: +33-388115066 Fax: +33-388116262
Received: September 15, 2014
Peer-review started: September 19, 2014
First decision: November 18, 2014
Revised: December 5, 2014
Accepted: December 22, 2014
Article in press: December 22, 2014
Published online: March 21, 2015
Abstract

We read with great interest the excellent review by Wong et al on extra intestinal manifestations of Helicobacter pylori (H. pylori) infection published in the journal. This is a well-documented and structured review. However, I believe that Wong et al failed to report the relationship between H. pylori infection and cobalamin.

Keywords: Cobalamin deficiency, Helicobacter pylori, Food-cobalamin deficiency, Oral cobalamin therapy

Core tip: We read with great interest the excellent review by Wong et al on extra intestinal manifestations of Helicobacter pylori (H. pylori) infection published in the journal. This is a well-documented and structured review. However, I believe that Wong et al failed to report the relationship between H. pylori infection and cobalamin.