Relationship between human oral microbiome dysbiosis and neuropsychiatric diseases: An updated overview

Tao, Kai; Yuan, Yanling; Xie, Qinglian; Dong, Zaiquan

doi:10.1016/j.bbr.2024.115111

Cited by 5 publications

References 116 publications

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From human herpes virus‐6 reactivation to autoimmune reactivity against tight junctions and neuronal antigens, to inflammation, depression, and chronic fatigue syndrome due to Long COVID

Maes,

Almulla,

Tang

et al. 2024

Journal of Medical Virology

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Inflammation and autoimmune responses contribute to the pathophysiology of Long COVID, and its affective and chronic fatigue syndrome symptoms, labeled “the physio‐affective phenome.” To investigate whether Long COVID and its physio‐affective phenome are linked to autoimmunity to the tight junction proteins, zonulin and occludin (ZOOC), and immune reactivity to lipopolysaccharides (LPS), and whether the latter are associated with signs of human herpes virus‐6 (HHV‐6) reactivation, autoimmunity directed against oligodendrocyte and neuronal proteins, including myelin basic protein. IgA/IgM/IgG responses to severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), HHV‐6, ZOOC, and neuronal proteins, C‐reactive protein (CRP), and advanced oxidation protein products (AOPPs), were measured in 90 Long COVID patients and 90 healthy controls. The physio‐affective phenome was conceptualized as a factor extracted from physical and affective symptom domains. Neural network identified IgA directed to LPS (IgA‐LPS), IgG‐ZOOC, IgG‐LPS, and IgA‐ZOOC as important variables associated with Long COVID diagnosis with an area under the ROC curve of 0.755. Partial Least Squares analysis showed that 40.9% of the variance in the physio‐affective phenome was explained by CRP, IgA‐myelin basic protein (MBP), and IgG‐MBP. A large part of the variances in both autoimmune responses to MBP (36.3%–39.7%) was explained by autoimmunity (IgA and IgG) directed to ZOOC. The latter was strongly associated with indicants of HHV‐6 reactivation, which in turn was associated with increased IgM‐SARS‐CoV‐2. Autoimmunity against components of the tight junctions and increased bacterial translocation may be involved in the pathophysiology of Long COVID's physio‐affective phenome.

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