GDF15 and pulmonary tuberculosis: When only the individuals with pulmonary TB were compared to those with ORD, significant differences were observed for SAA, CRP, VEGFR3, RANTES, Pentraxin3, Ferritin, CCL18, MPO, GDF-15, MMP-1, PDGF-BB, Procalcitonin, MDC, Myoglobin, and VCAM-1.