APOA1 and tuberculosis: Among asymptomatic subjects, Apo-A1, ITAC-1, 1-309, MIG, MCP-2, and NCAM-1 in the unstimulated sample (Nil) predicted active TB with a sensitivity and specificity >70%, well as within the TB antigen-stimulated sample, Apo-CIII, I-309, MIP-1α, and TNF-α predicted active TB disease (49).