Serum GLDH levels followed the same trend as the ALT and AST levels and started to increase significantly in the serum 8 days after infection with all three parasite strains and continued to increase at 10 days after infection in PcAS-infected mice but not in PbNK65-infected mice (p = 0.0072 for PcAS versus PbNK65 at day 10) (Figure 1E). Here, GPT is linked to infection.