1. Choroid plexus volume as a proxy of neuroinflammation in depression
- Author
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B. Bravi, E. Melloni, L. Servidio, E. Agnoletto, M. Paolini, S. Poletti, C. Lorenzi, C. Colombo, and F. Benedetti
- Subjects
Psychiatry ,RC435-571 - Abstract
Introduction Choroid plexus (CP) is a physiological barrier, producing cerebrospinal fluid (CSF), neurotrophic, and inflammatory factors. It’s also involved in the neuro-immune axis, facilitating the interplay between central and peripheral inflammation, allowing trafficking of immune cells. Coherently, CP enlargement has been found in psychiatric diseases characterized by inflammatory signature. Although CP volume correlates with central microglia activation in major depressive disorder (MDD), it’s never been directly associated with peripheral markers in mood disorders. Objectives Examine CP volume in mood disorders and healthy controls (HC) in relation to clinical features and peripheral inflammatory markers. Methods CP volume was extracted with FreeSurfer in 72 HC and 152 age- and sex-matched depressed patients: 79 BD and 73 MDD. Plasma analytes in patients were collected through immunoassay technology (Bioplex). We tested for the effect of age by group on CP volume. Then we focused on the interaction between illness duration and diagnosis in predicting CP volume. After testing the effect of specific analytes by diagnosis, we calculated moderated moderation models (SPSS, PROCESS) setting each analyte as independent variable, CP volume as predicted variable and illness duration and diagnosis as moderators. We get the effects’ significance with the likelihood ratio statistic, always controlling for age, sex, and intracranial volume. Results Patients were comparable in illness duration and severity. CP volume is differentially distributed through groups (right: p=0.04; left: p
- Published
- 2023
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