PMID- 36741577 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230207 IS - 1664-0640 (Print) IS - 1664-0640 (Electronic) IS - 1664-0640 (Linking) VI - 13 DP - 2022 TI - Are serum levels of inflammatory markers associated with the severity of symptoms of bipolar disorder? PG - 1063479 LID - 10.3389/fpsyt.2022.1063479 [doi] LID - 1063479 AB - BACKGROUND: To explore the relationship between serum levels of inflammatory markers and symptomatic severity of bipolar disorder (BD). MATERIALS AND METHODS: A cross-sectional study was conducted on 126 BD patients with current depressive episode (BDD), 102 BD patients with current mixed or (hypo)manic episode (BDM) and 94 healthy controls (HC). All participants were drug-naive and had no current active physical illness associated with inflammatory response or history of substance abuse. Fasting serum levels of CRP, leptin (LEP), adiponectin (ADP), visfatin (VIS), TNF-alpha, IL-2, IL-6, IL-10, IL-17), and monocyte chemoattractant protein-1 (MCP-1) were measured with enzyme-linked immunosorbent assay (ELISA). Symptomatic severity of BD was assessed with HAMD-17 and YMRS. Generalized linear model was used to determine the association between the serum levels of inflammatory markers and symptomatic severity of BD. RESULTS: The serum levels of IL-6, IL-10 and IL-17, and the IL-6/IL-10 ratio were significantly lower in mild BDD than in HC. In moderate BDD, the serum levels of MCP, IL-6 and IL-17 were significantly lower than in HC. In severe BDD, the serum level of ADP, MCP-1, IL-10 and IL-17and the IL-17/IL-10 ratio were significantly lower than in HC. The serum levels of TNF-alpha and the IL-6/IL-10 ratio were significantly higher in mild BDM than in HC. In moderate BDM, the serum level of VIS, IL-2, and IL-17 were significantly higher than in HC, but the IL-6/IL-10 ratio was significantly lower than in control. In severe BDM, the serum levels of IL-6 and IL-17 and the ratios of IL-6/IL-10 and IL-17/IL-10 were significantly lower than in HC, but the neutrophil/lymphocyte ratio was significantly higher than in HC. CONCLUSION: In BDD, immune-inhibition is persistently predominant, while in mild-to-moderate BDM, immune system is activated but inhibited in severe BDM. The dynamic change of serum inflammatory markers suggests that alteration of peripheral inflammatory markers in BD is state-dependent instead of trait-marked. CI - Copyright (c) 2023 Wu, Chen, Liao, Yang, Liang, Guan and Gan. FAU - Wu, Xiuhua AU - Wu X AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Chen, Zhongcheng AU - Chen Z AD - Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Liao, Yingtao AU - Liao Y AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Yang, Zhihua AU - Yang Z AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Liang, Xiaolin AU - Liang X AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Guan, Nianhong AU - Guan N AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Gan, Zhaoyu AU - Gan Z AD - Department of Psychiatry, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. LA - eng PT - Journal Article DEP - 20230120 PL - Switzerland TA - Front Psychiatry JT - Frontiers in psychiatry JID - 101545006 PMC - PMC9894870 OTO - NOTNLM OT - bipolar disorder OT - inflammatory markers OT - pathophysiology OT - stage OT - symptomatic severity COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/02/07 06:00 MHDA- 2023/02/07 06:01 PMCR- 2023/01/20 CRDT- 2023/02/06 03:33 PHST- 2022/10/07 00:00 [received] PHST- 2022/12/28 00:00 [accepted] PHST- 2023/02/06 03:33 [entrez] PHST- 2023/02/07 06:00 [pubmed] PHST- 2023/02/07 06:01 [medline] PHST- 2023/01/20 00:00 [pmc-release] AID - 10.3389/fpsyt.2022.1063479 [doi] PST - epublish SO - Front Psychiatry. 2023 Jan 20;13:1063479. doi: 10.3389/fpsyt.2022.1063479. eCollection 2022.