Distinct Inflammation Biomarkers in Healthy Individuals and Patients with Schizophrenia: A Reliability Testing of Multiplex Cytokine Immunoassay by Bland-Altman Analysis
| Autor: | Hsuan-Te Chu, Ta-Chuan Yeh, Chih-Sung Liang, Chia-Kuang Tsai, Hsin-An Chang, San Yuan Huang, Fu-Chi Yang |
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| Rok vydání: | 2019 |
| Předmět: |
Intraclass correlation
medicine.medical_treatment Multiplex immunoassay 03 medical and health sciences 0302 clinical medicine Medicine Bland–Altman plot Cytokine Biological Psychiatry Inflammation Cytokine Measurement business.industry Interleukin Reliability medicine.disease Pathophysiology 030227 psychiatry Psychiatry and Mental health Schizophrenia Immunology Original Article Tumor necrosis factor alpha business 030217 neurology & neurosurgery |
| Zdroj: | Psychiatry Investigation |
| ISSN: | 1976-3026 1738-3684 |
| DOI: | 10.30773/pi.2019.04.14 |
| Popis: | Objective Since the inflammatory process has been implicated in the pathophysiology of psychiatric disorder, an important issue emerging is to assess the test-retest reliability of cytokine measurement in healthy individuals and patients with schizophrenia. The objective of the present study was to investigate the test-retest reliability of bead-based multiplex immunoassay technology (BMIT) for cytokine measurement by using a Bland-Altman plot (BAP). Methods Twenty healthy individuals and twenty patients with schizophrenia were enrolled, and a 17-plex cytokine assay was used to measure inflammatory biomarkers at baseline and two weeks later. The test-retest reliability was examined by BAP, 95% limits of agreement (LOA), intraclass correlation coefficient (ICC), and coefficient of repeatability (CoR). Results In the healthy controls, only interleukin (IL)-2, IL-13, IL-10, IL-17, and macrophage inflammatory protein-1β showed excellent ICC. The BAP with 95% LOA determined that 13 cytokines showed acceptable 95% LOA for a 2-week test-retest reliability, and only IL-1β, IL-12 and tumor necrosis factor (TNF)-α had significant test-retest bias. The CoR of cytokines varied significantly, ranging from 1.72 to 218.1. Compared with healthy controls, patients with schizophrenia showed significantly higher levels of IL-5, IL-13, and TNF-α and significantly lower levels of IL-4, IL-12, and interferon-gamma (IFN-γ). Of these six cytokines, IL-12 and TNF-α were considered suboptimal reliability. Conclusion The findings from ICC and CoR implied that the test-retest reliability of BMIT for cytokine measurement were suboptimal. However, the BAP with 95% LOA confirmed that BMIT can reliably distinguish schizophrenia from healthy individuals in cytokine measurement, while significant within-subject variation and between-group overlapping were evident in cytokine expression. |
| Databáze: | OpenAIRE |
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