Blood MicroRNA Patterns Linked to Chronic Fatigue Syndrome

A finding of distinct patterns of gene-regulating RNA snippets in the blood of ME/CFS patients in response to a stress test could pave the way for a diagnostic tool for the condition and help untangle its underlying mechanisms.

Written byKatarina Zimmer
| 5 min read
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Formerly known as chronic fatigue syndrome, myalgic encephalomyelitis/chronic fatigue syndrome has long been neglected by physicians, researchers, and funding agencies, not least due to its mysterious causes. It’s often hard for patients to find doctors who can diagnose ME/CFS, a widespread condition characterized by debilitating post-exertion fatigue and other symptoms.

A new study appears to make headway toward solving those difficulties. A recent analysis from more than 40 ME/CFS patients reports that a disease-specific stress test leaves a distinct signature of 11 microRNAs in their blood that change in abundance compared with blood drawn before the test. Most of these microRNAs are involved in regulating immunity, supporting the idea that immune dysfunction plays a key role in the disease’s pathology. The findings lay the groundwork for developing a molecular diagnostic test for the disease, the authors write in their study, which was published on November 12 ...

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Meet the Author

  • katya katarina zimmer

    After a year teaching an algorithm to differentiate between the echolocation calls of different bat species, Katarina decided she was simply too greedy to focus on one field of science and wanted to write about all of them. Following an internship with The Scientist in 2017, she’s been happily freelancing for a number of publications, covering everything from climate change to oncology. Katarina is a news correspondent for The Scientist and contributes occasional features to the magazine. Find her on Twitter @katarinazimmer and read her work on her website.

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