It was not part of the main findings of cohort 1a, but a retrospective analysis revealed that it was actually upregulated in that cohort too (median linearized NPX 98% higher in patients; P < 0.001; VIP = 1.06) We have previously also shown that levels of CX3CL1 were high in the CSF of patients with fibromyalgia.13 The gene discussed is CX3CL1; the disease is fibromyalgia.