A proteomic study on cerebrospinal fluid from ME/CFS patients has shown an upregulation of the pathway "valine, leucine and isoleucine degradation" (table S6 in ref 2).
The gene acyl-CoA.dehydrogenase family member 8 (ACAD8) has been found epigenetic changed (hypermethylated) in ME (3).
ACAD8 is an isobutyryl-CoA dehydrogenase that functions in the catabolism of branched-chain amino acids including valine, and shows high reactivity toward isobutyryl-CoA. ACAD8 is responsible for the third step in the breakdown of valine and converts isobutyryl-CoA into methylacrylyl-CoA.
- Fluge et al: Metabolic profiling indicates impaired pyruvate dehydrogenase function in myalgic encephalopathy / chronic fatigue syndrome. JCI Insight. 2016; 1(21):e89376. Doi 10.1172/jci.insight.89276
- Schutzer et al: Distinct Cerebrospinal Fluid Proteomes Differentiate Post- Treatment Lyme Disease from Chronic Fatigue Syndrome. PLOS One February 2011, volume 6, Issue 2
- Vega et al. DNA methylation Modifications associated with CFS. Plos One, aug 2014, vol 9, Issue 8, e104757
- Wikipedia: ACAD8
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