Retraction | Open Access
Gastroenterology Research and Practice, "Retracted: Influence of Gastrectomy on Cortical and Cancellous Bones in Rats", Gastroenterology Research and Practice, vol. 2020, Article ID 5109831, 1 page, 2020. https://doi.org/10.1155/2020/5109831
Retracted: Influence of Gastrectomy on Cortical and Cancellous Bones in Rats
Gastroenterology Research and Practice has retracted the article titled “Influence of gastrectomy on cortical and cancellous bones in rats” , following the publication of an Expression of Concern in July 2019  and an institutional investigation.
An investigation by the Keio University School of Medicine found that Dr. Jun Iwamoto included his supervisors as co-authors on some articles without their approval. He also reused the data from previous articles without any references or citations. Parts of the articles that were subject to the investigation were mistyped and needed revision. The investigation could not confirm any instances where data may have been intentionally fabricated, plagiarized, or otherwise falsified. The investigatory report was not provided by the institution or the Ministry of Education, Culture, Sports, Science and Technology.
The authors agree to retraction.
- J. Iwamoto, Y. Sato, and H. Matsumoto, “Influence of gastrectomy on cortical and cancellous bones in rats,” Gastroenterology Research and Practice, vol. 2013, Article ID 381616, 8 pages, 2013.
- Gastroenterology Research and Practice, “Expression of Concern on "Influence of gastrectomy on cortical and cancellous bones in rats",” Gastroenterology Research and Practice, vol. 2019, Article ID 4312310, 2 pages, 2019.
- “Retraction of Vitamin K2 improves femoral bone strength without altering bone mineral density in gastrectomized rats,” Journal of Nutritional Science and Vitaminology, vol. 65, no. 3, p. 283, 2019.
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