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NAIRAWAY Forum / Health / Chronic fatigue syndrome biomarkers identified by US researchers (1 Post | 255 Views)
Chronic fatigue syndrome biomarkers identified by US researchers by nairaway(m) : 6:36 pm On Aug 07, 2017
Researchers at the Stanford University in the United States have identified biomarkers associated with the severity of chronic fatigue syndrome (CFS), which might help lead to a diagnostic blood test.
Researchers analysed blood samples from 192 patients and 392 healthy controls in a study by researchers of the School of Medicine of the Standford University published in the Proceedings of the National Academy of Sciences released on July 31.
The average age of the patients and controls was about 50, and the patients’ average duration of symptoms was more than 10 years.
Results showed that levels of some immune-system signaling proteins or cytokines were lower in patients with mild CFS than in the control subjects, but were higher in patients with relatively severe CFS.
In addition, the researchers found that of the 51 cytokines they measured, the concentration of 17 cytokines tracked disease severity, 13 of which are pro-inflammatory.
The findings showed evidence that inflammation is a driver of CFS, the underpinnings of which have eluded scientists for decades.
The CFS leads many patients to have flu-like symptoms common in inflammation-driven diseases, while other patients may have symptoms sometimes manifesting as heart problems.
They could manifest as mental impairment, indigestion, diarrhea, constipation, muscle pain, tender lymph nodes and so forth, said Jose Montoya, professor of infectious diseases and geographic medicine at Stanford University as well as the lead author of the study.
Antivirals, anti-inflammatories and immune-modulating drugs have led to symptomatic improvement in some cases.
However, no single pathogenic agent could be fingered, as the ultimate CFS trigger has yet been isolated, said Montoya.
The authors of the study believe that their findings could improve the diagnosis and treatment of the disorder, including clinical trials to test the potential of immunomodulatory drugs as CFS therapies.
More than one million people in the United States suffer from the CFS, also known as myalgic encephalomyelitis.
It was reported earlier this year that in Norway, a nation with a population of over 5 million, about 270 primary and secondary students dropped school due to the syndrome.
The disorder has no known cure or reliably effective treatments.
For unknown reasons, the syndrome typically persists for decades, and likely hits among adolescents between the age of 15 and 20, and adults between 30 and 35 and three of every four patients are women.
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