“…Multiple studies have reported alterations in several immune cell types in FMS in addition to nervous system contribution. 5,8,[42][43][44]60,61,69,71 Although several mechanisms for the immunopathology of FMS have been proposed, no consensus has been reached. A recent meta-analysis showed upregulated immune-inflammatory and compensatory immuneregulatory systems in FMS, but the precise involvement of the immune system in the pathophysiology of FMS is unclear.…”