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Published on: April 12, 2024
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Neural dysregulation in post-COVID fatigue.
Anne M E Baker1, Natalie J Maffitt1, Alessandro Del Vecchio2
1Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK.
Brain Communications
|June 12, 2023
Summary
Long COVID fatigue may stem from neural and muscular issues. Research found underactive brain circuits, autonomic dysfunction, and skeletal muscle changes in patients with post-COVID fatigue.
Area of Science:
- Neuroscience
- Immunology
- Pathology
Background:
- Long COVID, a post-SARS-CoV-2 infection condition, frequently includes debilitating fatigue.
- The underlying neural mechanisms contributing to post-COVID fatigue are not well understood.
Purpose of the Study:
- To investigate the neural, peripheral, and autonomic nervous system underpinnings of fatigue in individuals following mild COVID-19 infection.
Main Methods:
- Recruited 37 volunteers with self-reported fatigue post-COVID-19.
- Conducted comprehensive behavioral and neurophysiological assessments.
- Compared findings with 52 age- and sex-matched healthy controls.
Main Results:
- Identified underactivity in specific cortical circuits in individuals with post-COVID fatigue.
- Observed dysregulation in autonomic function.
- Detected myopathic changes in skeletal muscle tissue.
Conclusions:
- Post-COVID fatigue appears to be a singular entity with individual variability, not distinct syndromes.
- Findings suggest potential objective markers for monitoring disease and developing interventions.
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