NAMPT and tuberculosis: The expression of other enzymes of the NAD+ biosynthesis pathway, namely, nicotinamide phosphoribosyltransferase (Nampt), nicotinamide adenylyl transferase 3 (Nmnat3), and nicotinate phosphoribosyltransferase (Naprt) increased in PBS-treated TB-mice, a feature that was normalised by sACVR (Figure 4D).