Relevant markers of the β-amyloid-pathway (APP, UBB), muscle degeneration/regeneration (desmin/NCAM), cell-stress (αB-crystallin, MHC-I, iNOS) and inflammation (IFN-γ, IL-1β, IL-6, TNF-α, TGF-β, CXCL-9, CCL-3, CCL-4) as recently analyzed in sIBM and other inflammatory myopathies and non-inflammatory muscular dystrophy [11] were measured by quantitative PCR. The gene discussed is APP; the disease is myopathy.