Antibodies to adrenergic and muscarinic receptors in ME/CFS

paolo maccallini

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During the Community Symposium on the molecular basis of ME/CFS (R) two different groups of researchers reported on the increased level of antibodies to beta adrenergic and muscarinic receptors in sera from ME/CFS patients vs healthy controls (Figure 1). These new data have been collected independently by Alan Light (University of Utah) and Jonas Bergquist (Uppsala Universitet). Bergquist also reported that these autoantibodies can’t be found in cerebrospinal fluid from ME/CFS patients.

autoantibodiesFigure 1. Two slides from the symposium: on the left data from Uppsala Universitet, on the right data from a group of patients studied by Alan Light (University of Utah).

What was already known on these autoantibodies

The presence of a higher than normal reactivity of sera from ME/CFS patients to muscarinic receptors was reported for the first time by a Japanese group, more than a decade ago (Tanaka S et al. 2003

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