Table 2. Comparison different gene expression of mouse embryos in morula stage treated with oligonucleotide of LIF-siRNA and scrambled-siRNA at mouse 2PN stage by a statistical approach revealed up- and down regulated genes at morular stage.

N0.	Gene name	UniGene	Gene symbol	Function	Expressa
1	SRY-box containing gene 2	Mm.65396	SOX2	Cell differentiation	DR (3)
2	Phosphatidylethanolamine N-methyltransferase	Mm.452195	PEMT	Metabolism	DR (4)
3	Gap junction membrane channel protein beta 5	Mm.26859	GJB5	Cell communication	DR(29)
4	Platelet derived growth factor receptor alpha	Mm.221403	PDGFRA	Cell communication	DR(166)
5	Cytochrome P450, 39a1	Mm.376968	CYP39a1	Metabolism	UR(1)
6	Cystatin 9	Mm.21005	CST9	Unknown	UR(4)
7	Fatty acid binding protein 2, intestinal	Mm.28398	FABP2	Cell physiology	UR(23)
8	Epidermal growth factor	Mm.252481	EGF	Metabolism	UR(31)
9	Breast cancer 2	Mm.236256	BRCA2	Unknown	UR(107)

^aDR, down-regulation; UR, up-regulation. The number in the bracket is the series number of the two down-regulation and up-regulation groups in the S1 Table and S2 Table.