Compared to the LPR group, the levels of anti-dsDNA, ANA, and Sm antibodies in the PAT group recovered to 523.02 ng/L (p < 0.01), 20.49 ng/L (p < 0.01), and 65.30 ng/L (p < 0.01), respectively; in the low-dose PCP (PCPL) group, they recovered to 558.73 ng/L (p < 0.05), 22.77 ng/L (p < 0.01), and 75.54 ng/L (p < 0.01), respectively; and in the high-dose PCP (PCPH) group, they recovered to 434.52 ng/L (p < 0.01), 20.41 ng/L (p < 0.01), and 70.30 ng/L (p < 0.01), respectively. This evidence concerns the gene BTG3 and pneumocystosis.