TY - JOUR A1 - Lötsch, Jörn A1 - Schiffmann, Susanne A1 - Schmitz, Katja A1 - Brunkhorst, Robert A1 - Lerch, Florian A1 - Ferreirós Bouzas, Nerea A1 - Wicker, Sabine A1 - Tegeder, Irmgard A1 - Geisslinger, Gerd A1 - Ultsch, Alfred T1 - Machine-learning based lipid mediator serum concentration patterns allow identification of multiple sclerosis patients with high accuracy T2 - Scientific reports N2 - Based on increasing evidence suggesting that MS pathology involves alterations in bioactive lipid metabolism, the present analysis was aimed at generating a complex serum lipid-biomarker. Using unsupervised machine-learning, implemented as emergent self-organizing maps of neuronal networks, swarm intelligence and Minimum Curvilinear Embedding, a cluster structure was found in the input data space comprising serum concentrations of d = 43 different lipid-markers of various classes. The structure coincided largely with the clinical diagnosis, indicating that the data provide a basis for the creation of a biomarker (classifier). This was subsequently assessed using supervised machine-learning, implemented as random forests and computed ABC analysis-based feature selection. Bayesian statistics-based biomarker creation was used to map the diagnostic classes of either MS patients (n = 102) or healthy subjects (n = 301). Eight lipid-markers passed the feature selection and comprised GluCerC16, LPA20:4, HETE15S, LacCerC24:1, C16Sphinganine, biopterin and the endocannabinoids PEA and OEA. A complex classifier or biomarker was developed that predicted MS at a sensitivity, specificity and accuracy of approximately 95% in training and test data sets, respectively. The present successful application of serum lipid marker concentrations to MS data is encouraging for further efforts to establish an MS biomarker based on serum lipidomics. KW - Diagnostic markers KW - Multiple sclerosis Y1 - 2018 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/47673 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-476733 SN - 2045-2322 N1 - Rights and permissions: Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. VL - 8 IS - 1, Art. 14884 SP - 1 EP - 16 PB - Macmillan Publishers Limited, part of Springer Nature CY - [London] ER -