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1.
medrxiv; 2021.
Preprint in English | medRxiv | ID: ppzbmed-10.1101.2021.11.17.21266457

ABSTRACT

Background The immunopathological pathways enabling post-COVID syndrome (PCS) development are not entirely known. We underwent a longitudinal analysis of patients with COVID-19 who developed PCS aiming to evaluate the autoimmune and immunological status associated with this condition. Methods Thirty-three patients were included for longitudinal clinical and autoantibody analyses of whom 12 patients were assessed for cytokines and lymphocyte populations. Patients were followed during 7-11 months after acute COVID-19. Autoimmune profile and immunological status were evaluated mainly by enzyme-linked-immunosorbent assays and flow cytometry. Results Latent autoimmunity and overt autoimmunity persisted over time. A proinflammatory state was observed in patients with PCS characterized by upregulated IFN-α, TNF-α, G-CSF, IL-17A, IL-6, IL-1β, and IL-13, whereas IP-10 was decreased. In addition, PCS was characterized by increased levels of Th9, CD8+ effector T cells, naive B cells, and CD4+ effector memory T cells. Total levels of IgG S1-SARS-CoV-2 antibodies remained elevated over time. Discussion The clinical manifestations of PCS are associated with the persistence of a proinflammatory, and effector phenotype induced by SARS-CoV-2 infection. This long-term persistent immune activation may contribute to the development of latent and overt autoimmunity. Results suggest the need to evaluate the role of immunomodulation in the treatment of PCS.


Subject(s)
Persistent Vegetative State , COVID-19
5.
Ann Neurol ; 88(4): 851-854, 2020 10.
Article in English | MEDLINE | ID: covidwho-625491

ABSTRACT

Many patients with severe coronavirus disease 2019 (COVID-19) remain unresponsive after surviving critical illness. Although several structural brain abnormalities have been described, their impact on brain function and implications for prognosis are unknown. Functional neuroimaging, which has prognostic significance, has yet to be explored in this population. Here we describe a patient with severe COVID-19 who, despite prolonged unresponsiveness and structural brain abnormalities, demonstrated intact functional network connectivity, and weeks later recovered the ability to follow commands. When prognosticating for survivors of severe COVID-19, clinicians should consider that brain networks may remain functionally intact despite structural injury and prolonged unresponsiveness. ANN NEUROL 2020;88:851-854.


Subject(s)
Brain/diagnostic imaging , Coma/diagnostic imaging , Coronavirus Infections/physiopathology , Persistent Vegetative State/diagnostic imaging , Pneumonia, Viral/physiopathology , Recovery of Function , Betacoronavirus , Brain/physiopathology , COVID-19 , Coma/physiopathology , Coronavirus Infections/therapy , Electroencephalography , Functional Neuroimaging , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Neural Pathways , Pandemics , Persistent Vegetative State/physiopathology , Pneumonia, Viral/therapy , Prognosis , Renal Insufficiency/physiopathology , Respiration, Artificial , Respiratory Distress Syndrome/physiopathology , Respiratory Distress Syndrome/therapy , SARS-CoV-2 , Shock/physiopathology
6.
researchsquare; 2020.
Preprint in English | PREPRINT-RESEARCHSQUARE | ID: ppzbmed-10.21203.rs.3.rs-30354.v1

ABSTRACT

Recently, some cases of Guillain Barré syndrome (GBS) and Miller Fisher (MF) have been reported, following COVID-19 infection1-2-3 . We report two different clinical manifestation of Covid-19 related GBS , one is a GBS/MF overlap syndrome, the other one an Acute Motor Sensory Axonal Neuropathy (AMSAN) with massive vegetative impairment, both highly responsive to intravenous immunoglobulins.


Subject(s)
Motor Neuron Disease , Persistent Vegetative State , Miller Fisher Syndrome , COVID-19 , Guillain-Barre Syndrome
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