{"paper_id":"68eed93f-1df1-4f99-ba49-5cd996c91d43","body_text":"C O R R E C T I O N Open Access\nCorrection to: Endometrium metabolomic\nprofiling reveals potential biomarkers for\ndiagnosis of endometriosis at minimal-mild\nstages\nJingjie Li 1†, Lihuan Guan 2†, Huizhen Zhang 2, Yue Gao 2, Jiahong Sun 2, Xiao Gong 4, Dongshun Li 2, Pan Chen 3,\nXiaoyan Liang 1, Min Huang 2 and Huichang Bi 2*\nCorrection to: Reprod Biol Endocrinol (2018) 16:42\nhttps://doi.org/10.1186/s12958-018-0360-z\nThe authors regret that the incorrect identification\nof “omega-3 arachidonic acid ” published in the ori-\nginal manuscript [ 1]. This classification is incorrect as\narachidonic acid is an omega-6 polyunsaturated fatty\nacid. From a mechanistic standpoint, this mistake\nmight have significance, as arachidonic acid is hy-\npothesized to play a role in inflammatory processes.\nWe have carefully double-checked our original data\nand compared the fragmentation spectra and m/z re-\nferring to Metlin Database again. We are sure that\nthe metabolite should be arachidonic acid, instead of\nomega-3 arachidonic acid. Given that this misclassifi-\ncation is made in several places within the article ’s\nabstract and text, a correction is warranted.\nAccordingly, the name “omega-3 arachidonic acid ”\nmentioned in the following parts should be corrected as\n“arachidonic acid ”:\n/C15In the results section of Abstract: “The eutopic\nendometrium metabolomic profile of the\nendometriosis patients was characterized by a\nsignificant increase in the concentration of\nhypoxanthine, L-arginine, L-tyrosine, leucine, ly-\nsine, inosine, omega-3 arachidonic acid,\nguanosine……”.\n/C15In the last paragraph of Introduction: “The\neutopic endometrium metabolomic profile of\nendometriosis patients was characterized by a\nsignificant increase in the concentration of\nhypoxanthine, L-arginine, L-tyrosine, leucine,\nlysine, inosine, omega-3 arachidonic acid,\nguanosine……”.\n/C15In the first paragraph of the section with the\nsubheading “Identification of detected metabolites ”\nof Results: “Obviously, levels of hypoxanthine, L-\narginine, L-tyrosine, leucine, lysine, inosine,\nomega-3 arachidonic acid, guanosine …..”\n/C15In the first paragraph of Discussion: “In this regard,\n11 metabolites including hypoxanthine, L-arginine,\nL-tyrosine, leucine, lysine, inosine, omega-3 arachi-\ndonic acid, guanosine ……”\n/C15Figure 2D, “Omega-3 Arachidonic acid ”\n/C15In the third row of Figure 3, “omega-3 arachidonic\nacid”\n/C15In the third graph in the first row of Figure 4,\n“Omega-3 Arachidonic acid ”\n/C15In the 4th row of RPLC mode in Table 2, “Omega-3\nArachidonic acid ”\nThe authors would like to apologize for any inconvenience\ncaused.\n© The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0\nInternational License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and\nreproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to\nthe Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver\n(http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.\n* Correspondence: bihchang@mail.sysu.edu.cn\nThe original article can be found online at https://doi.org/10.1186/s12958-\n018-0360-z\n†Jingjie Li and Lihuan Guan contributed equally to this work.\n2School of Pharmaceutical Sciences in Sun Yat-sen University, 132#\nWaihuandong Road, Guangzhou, University City, Guangzhou 510006,\nPeople’s Republic of China\nFull list of author information is available at the end of the article\nLi et al. Reproductive Biology and Endocrinology           (2019) 17:89 \nhttps://doi.org/10.1186/s12958-019-0532-5\n\nAuthor details\n1Center of Reproductive Medicine, the Sixth Affiliated Hospital, Sun Yat-sen\nUniversity, Guangzhou, China. 2School of Pharmaceutical Sciences in Sun\nYat-sen University, 132# Waihuandong Road, Guangzhou, University City,\nGuangzhou 510006, People ’s Republic of China. 3Pharmacy Department, the\nFirst Affiliated Hospital, Sun Yat-sen University, Guangzhou, China. 4School of\nPublic Health, Guangdong Pharmaceutical University, Guangzhou, China.\nReference\n1. Li J, et al. Endometrium metabolomic profiling reveals potential biomarkers\nfor diagnosis of endometriosis at minimal-mild stages. Reprod Biol\nEndocrinol. 2018;16:42. https://doi.org/10.1186/s12958-018-0360-z.\nLi et al. Reproductive Biology and Endocrinology           (2019) 17:89 Page 2 of 2","source_license":"CC-BY-4.0","license_restricted":false}