Table 2.

PCR and RT-PCR primers

	sequences 5' 3'	size of the amplified fragment [bp]
β-actin	for - cagggtgtgatggtgggaatgg rev - caggatggcgtgagggagagca	409
IGFBP-1	for - agtttagccaaggcacagga rev - tatctggcagttggggtctc	204
PRL	for - gcttctgtatcatctggtcacg rev - tgcgtaggcagtggagcag	247
GAPDH	for - tgcaccaactgcttagc rev - acagtcttctgggtggcagtg	131

Primers for amplification with PCR and RT-PCR