Table 1.

Sequences of primers used in this study.

Genes	Forward	Reverse
PPIA	5′ CTCGAATAAGTTTGACTTGTGTTT 3′	5′ CTAGGCATGGGAGGGAACA 3′
RARA	5′ GTCTTTGCCTTCGCCAACCA 3′	5′ GCCCTCTGAGTTCTCCAACA 3′
VDR	5′ CCTTCACCATGGACGACATG 3′	5′ CTTTGGTCACGTCACT 3′