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Abstract #3931

Longitudinal Neurochemical Aftermath from Post-COVID Sequalae in the Posterior Cingulate Gyrus

Hye Bin Yoo1, Hyeong Hun Lee2, Yilguk Seo3, Serene Huang4, and Jeong Hoon Lim4,5
1Institute for Data Innovation in Science, Seoul National University, Seoul, Korea, Republic of, 2METLiT Inc., Seoul, Korea, Republic of, 3METLiT Inc., Seoul, Singapore, 4Division of Rehabilitation Medicine, National University Hospital, Singapore, Singapore, 5Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore

Synopsis

Keywords: Infectious Disease, COVID-19, Longitudinal, Fatigue, Spectroscopy

Motivation: Long-term post-COVID syndrome involves lasting symptoms including chronic-fatigue-syndrome or myalgic-encephalomyelitis(CFS/ME). We aim to investigate longitudinal changes in mitochondrial dysregulation and neurochemical abnormalities, which may be linked to the recovery of the post-COVID syndrome.

Goal(s): We seek to evaluate longitudinal changes in post-COVID CFS/ME patients in relation to neurochemical markers of neuroinflammation, redox imbalance, and neuronal dysfunction.

Approach: Ten-patients with post-COVID CFS/ME were scanned using proton MRS at two-time points targeting at posterior cingulate gyrus(PCG).

Results: Overall neuronal activity recovered in patients with post-COVID CFS/ME as well as chronic fatigue scores, but the recovery did not reach the levels observed in other metabolic information.

Impact: A longitudinal assessment of neurochemical metabolites in PCG reveals that while neuronal activity may recover, clinical symptoms of post-COVID fatigue can persist, potentially alongside markers of mitochondrial dysfunction that show no improvement over time.

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