Retraction: Gynura procumbens extract improves insulin sensitivity and suppresses hepatic gluconeogenesis in C57BL/KsJ-db/db mice.

[This retracts the article on p. 507 in vol. 10, PMID: 27698958.].

The editors of Nutrition Research and Practice received a letter of raising concerns regarding this paper1). In response, NRP's special committee on research ethics launched an investigation. During an investigation, authors admitted unintentionally omitting citations for an article that had been previously published in J. Clin. Biochem. Nutr2). The entire article has been retracted from NRP in accordance with NRP policy and editorial decision.

This article has been retracted by agreement between the authors and YoonJu Song/Sang-Jin Chung (Editors-in-Chief).

The online version of the original article can be found at https://doi.org/10.4162/nrp.2016.10.5.507