The results demonstrated increased levels of pro-inflammatory factors leptin (p < 0.04); IL-1beta (p < 0.04); IL-8 < 0.0001; TNF-alpha (p < 0.0468) and pro-fibrotic VEGF (p < 0.0001) in breath condensate in the participants with MS compared to without MS. The gene discussed is CXCL8; the disease is myeloid sarcoma.