Table 1.

β-Actin, p16, p21, and BDNF primer sequence for RT-PCR.

Gene	Primer	Sequence
β-actin	Forward	5′-TAATGTCACGCACGATTTCC-3′
	Reverse	5′-TGTTGTCCCTGTATGCCTCT-3′
p16	Forward	5′-GACGGGCATAGCTTCAGCTCAAGCA-3′
	Reverse	5′-GCCACATGCTAGACACGCTAGCATCGC-3′
p21	Forward	5′-GCCACAGGCACCATGTCCAATCCTGG-3′
	Reverse	5′-GCATCGCAATCACGGCGCAACTGCTC-3′
BDNF	Forward	5′-CTGAGCGTGTGTGACAGTATTA-3′
	Reverse	5′-TGGATACCGGGACTTTCTCT-3′