A bloodspot-based diagnostic test for fibromyalgia syndrome and related disorders

Researchers were able to differentiate patients with FM from those with osteoarthritis (OA) and rheumatoid arthritis (RA), and to identify molecular species associated with the spectral patterns.

They demonstrated the ability of IRMS to achieve reliable resolution of unique spectral patterns specific to FM.
Metabolomic analysis revealed that RA and OA groups were metabolically similar, whereas biochemical differences were identified in the FM that were quite distinctive from those found in the other two groups.