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RETRACTED ARTICLE: Does the Hepatic Branch of Vagus Mediate the Secretion of Glucagon-Like Peptide-1 During the Roux-en-Y Gastric Bypass Surgery?

  • Original Article
  • Published:
Journal of Gastrointestinal Surgery Aims and scope

This article was retracted on 16 November 2015

Abstract

Objectives

The purpose of this study is to investigate the impact of the hepatic branch of the vagus and Roux-en-Y gastric bypass (RYGB) on the level of fasting and postprandial serum glucagon-like peptide-1 (GLP-1) in type 2 diabetic mellitus rats.

Methods

Randomized block design, factorial experiment. Forty-five type 2 diabetic rats were divided into four groups: sham operation (S, n = 10) and sham operation with the hepatic branch of the vagotomy (SV, n = 11), Roux-en-Y gastric bypass (RYGB, n = 12) and RYGB without preservation of the vagus (RYGBV, n = 12). Levels of fasting and postprandial serum GLP-1 30 min after 50 % glucose solution (2 g/kg) by gavage were determined before surgery and postoperatively at 1, 4, and 8 weeks. Interactions between RYGB and the common hepatic branch were also assessed.

Results

Roux-en-Y gastric bypass surgery significantly increased the concentration of postprandial serum GLP-1 and maintained it at a higher level (P < 0.05). Preservation of vagus hepatic branch only increased the concentration of postprandial serum GLP-1 at the initial stage (P < 0.05), which gradually weakened over time (P > 0.05). Both RYGB and vagotomy of the hepatic branch had no influence on fasting serum GLP-1 (P > 0.05).

Conclusions

During RYGB surgery for the long-term treatment of T2DM, preservation of the hepatic branch of the vagus might have no impact on serum GLP-1 level.

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Acknowledgments

This work was supported by grants from the NSFC (National Nature Science Foundation of China) (No.81270969/H0729) and STCSM (Science and Technology Commission of Shanghai Municipality) (No.12ZR1454300). Nian-Cun Qiu, Miao-E Liu and Bin Wang had the original conception, designed and carried out the experimental work, wrote the article. Xin Song and Ying Jiang participated in the data analysis and interpretation. Juan Wang and Zi-Qun Gu participated in data collection and coordination of experiment. Cheng-Xiang Shan and Ming Qiu were involved in the revision of the article. All authors read and approved the final manuscript.

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Correspondence to Cheng-Xiang Shan or Ming Qiu.

Additional information

Nian-Cun Qiu, Miao-E Liu, and Bing Wang were co-first authors and Cheng-xiang Shan and Ming Qiu were corresponding authors.

The Journal Editors have retracted the article “Does the hepatic branch of vagus mediate the secretion of glucagon-like pepetide-1 during the Roux-en-Y gastric bypass surgery”, by Nian-Cun Qiu, Miao-E Liu, Bin Wang, Xin Song, Ying Jiang, Juan Wang, Zi-Qun Gu, Cheng-Xiang Shan, and Ming Qiu, which was published in Journal of Gastrointestinal Surgery, Volume 18, No. 11, 2014 pp 1957-1964. This is due to considerable overlap with the article “ Impact of the hepatic branch of the vagus and Roux-en Y gastric bypass on the hypoglycemic effect and glucagon-like peptide-1 in rats with type 2 diabetes mellitus”, by Nian-Cun Qiu, Qin Zhang, Xin Song, Miao-E Liu, Xiao-Ke Li, Cheng-Xiang Shan, and Ming Qiu which was published in Journal of Surgical Research, Volume 191, Issue 1, 2014, pp 123-129.

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Qiu, NC., Liu, ME., Wang, B. et al. RETRACTED ARTICLE: Does the Hepatic Branch of Vagus Mediate the Secretion of Glucagon-Like Peptide-1 During the Roux-en-Y Gastric Bypass Surgery?. J Gastrointest Surg 18, 1957–1964 (2014). https://doi.org/10.1007/s11605-014-2632-z

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  • DOI: https://doi.org/10.1007/s11605-014-2632-z

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