Plasma cytokine levels in TBM and PTB patients and healthy subjects. Expression levels of TNF-α, IL-6, IL-10, IL-1β, IL-12, and IFN-γ in plasma samples from HC individuals and PTB and TBM patients. Each result is shown as the mean ± SEM as determined based on analysis using the Kruskal-Wallis test (ns, not significant; ***, P < 0.001; **, P < 0.01; *, P < 0.05). HC, healthy control; PTB, patients with pulmonary tuberculosis; TBM, patients with tuberculous meningitis.