TY - JOUR A1 - Kittel-Schneider, Sarah A1 - Hahn, Tim A1 - Haenisch, Frieder A1 - McNeill, Rhiannon A1 - Reif, Andreas A1 - Bahn, Sabine T1 - Proteomic profiling as a diagnostic biomarker for discriminating between bipolar and unipolar depression T2 - Frontiers in psychiatry N2 - Introduction: Affective disorders are a major global burden, with approximately 15% of people worldwide suffering from some form of affective disorder. In patients experiencing their first depressive episode, in most cases it cannot be distinguished whether this is due to bipolar disorder (BD) or major depressive disorder (MDD). Valid fluid biomarkers able to discriminate between the two disorders in a clinical setting are not yet available. Material and Methods: Seventy depressed patients suffering from BD (bipolar I and II subtypes) and 42 patients with major MDD were recruited and blood samples were taken for proteomic analyses after 8 h fasting. Proteomic profiles were analyzed using the Multiplex Immunoassay platform from Myriad Rules Based Medicine (Myriad RBM; Austin, Texas, USA). Human DiscoveryMAPTM was used to measure the concentration of various proteins, peptides, and small molecules. A multivariate predictive model was consequently constructed to differentiate between BD and MDD. Results: Based on the various proteomic profiles, the algorithm could discriminate depressed BD patients from MDD patients with an accuracy of 67%. Discussion: The results of this preliminary study suggest that future discrimination between bipolar and unipolar depression in a single case could be possible, using predictive biomarker models based on blood proteomic profiling. KW - affective disorder KW - bipolar disorder KW - major depression (MD) KW - major depressive disorder (MDD) KW - proteome KW - biomarker KW - blood KW - machine learning Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54473 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-544730 SN - 1664-0640 N1 - Copyright © 2020 Kittel-Schneider, Hahn, Haenisch, McNeill, Reif and Bahn. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. VL - 11 IS - article 189 SP - 1 EP - 7 PB - Frontiers Research Foundation CY - Lausanne ER -