Yang, Chin-An, Bauer, Sandra, Ho, Yu-Chen et al. · Journal of translational medicine · 2018 · DOI
Researchers looked at special molecules called very long non-coding RNAs in the blood of ME/CFS patients to see if they might be disease markers. They found that three of these RNA molecules (NTT, MIAT, and EmX2OS) were present at higher levels in ME/CFS patients compared to healthy people, and two of them (NTT and EmX2OS) increased with disease severity. When they tested these findings in lab cells exposed to oxidative stress and viral signals, the RNA levels increased, suggesting these molecules respond to the kinds of biological stresses that may occur in ME/CFS.
Identifying disease-associated molecular signatures is crucial for developing diagnostic tests and understanding ME/CFS mechanisms. This study provides evidence that specific non-coding RNAs may reflect the biological dysregulation—oxidative stress, immune activation, and metabolic impairment—proposed to underlie ME/CFS, potentially opening new avenues for biomarker development and therapeutic intervention.
This study does not establish that these lncRNAs cause ME/CFS or prove their specific functional roles in disease pathogenesis. The findings are correlative and based on a small patient cohort; the in vitro cell experiments, while suggestive, do not definitively demonstrate that the same mechanisms operate in living ME/CFS patients. Larger validation studies and functional characterization are needed before these markers could be used clinically.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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