Table 1.

Primers sequence used in our study.

Gene		Sequence (5′-3′)	References
SP-D	Forward	ACTCATCACAGCCCACAACA	(Tian et al.23)
	Reverse	TCAGAACTCACAGATAACAAG
β-actin	Forward	AAGTCCCTCACCCTCCCAAAAG	(El-Magd et al.24)
	Reverse	AAGCAATGCTGTCACCTTCCC

SP-D surfactant protein D, β-actin beta-actin.