SFTPD and malaria: For the quantification analysis, the mean staining intensity score for SP-D expression was significantly increased in the lung tissues of malaria-infected mice with ALI/ARDS (2.44 ± 0.05) compared with that in the malaria-infected mice in the non-ALI/ARDS group (1.24 ± 0.02) and the mice in the control group (1.22 ± 0.03) (all p < 0.05) (n = 5 mice per group).