FSTL1 mRNA levels were modestly associated with BAX mRNA levels: FSGS (r = 0.29, p < 0.0036) (Figure 26A), IgAN (r = 0.32, p < 0.06) (Figure 26B), and MN (r = 0.26, p < 0.06) (Figure 26C). This evidence concerns the gene FSTL1 and focal segmental glomerulosclerosis.