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Cognitive profile, neuroimaging and fluid biomarkers in post-acute COVID-19 syndrome
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Cognitive profile, neuroimaging and fluid biomarkers in post-acute COVID-19 syndrome
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Journal Article
Cognitive profile, neuroimaging and fluid biomarkers in post-acute COVID-19 syndrome
2024
Overview
We aimed to characterize the cognitive profile of post-acute COVID-19 syndrome (PACS) patients with cognitive complaints, exploring the influence of biological and psychological factors. Participants with confirmed SARS-CoV-2 infection and cognitive complaints ≥ 8 weeks post-acute phase were included. A comprehensive neuropsychological battery (NPS) and health questionnaires were administered at inclusion and at 1, 3 and 6 months. Blood samples were collected at each visit, MRI scan at baseline and at 6 months, and, optionally, cerebrospinal fluid. Cognitive features were analyzed in relation to clinical, neuroimaging, and biochemical markers at inclusion and follow-up. Forty-nine participants, with a mean time from symptom onset of 10.4 months, showed attention-executive function (69%) and verbal memory (39%) impairment. Apathy (64%), moderate-severe anxiety (57%), and severe fatigue (35%) were prevalent. Visual memory (8%) correlated with total gray matter (GM) and subcortical GM volume. Neuronal damage and inflammation markers were within normal limits. Over time, cognitive test scores, depression, apathy, anxiety scores, MRI indexes, and fluid biomarkers remained stable, although fewer participants (50% vs. 75.5%; p = 0.012) exhibited abnormal cognitive evaluations at follow-up. Altered attention/executive and verbal memory, common in PACS, persisted in most subjects without association with structural abnormalities, elevated cytokines, or neuronal damage markers.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ Adult
/ Aged
/ Anxiety
/ Apathy
/ Cognitive Dysfunction - blood
/ Cognitive Dysfunction - diagnostic imaging
/ COVID-19
/ COVID-19 - diagnostic imaging
/ Female
/ Humanities and Social Sciences
/ Humans
/ Magnetic Resonance Imaging - methods
/ Male
/ Memory
/ MRI
/ Post-Acute COVID-19 Syndrome
/ SARS-CoV-2 - isolation & purification
/ Science
