Increased CRP values have been recorded for reactive arthritis, and also, old data reveal that CRP is elevated in polymyalgia rheumatica subjects and can respond to treatment, and a recent study found that increased CRP was associated with treatment-based relapses; specifically, mCRP has been reported in RA and polymyalgia rheumatica [737,738]. The gene discussed is CRP; the disease is polymyalgia rheumatica.