Table 1

 Sequences of primers used in our study

Primer setsDesignNucleotide sequence (5′ to 3′)Product
1Intron between exon 3 and 4 of β catenin geneSense: TGATTTGATGGAGTTGGACATAntisense: CATTGCATACTGTCCATCAATDNA, 450 bpcDNA, 250 bp
2Intron between exon 4 and 5 of β actin geneSense: AAATCGTGCGTGACATTAAGGAntisense: ATGATGGAGTTGAAGGTAGTTDNA, 324 bpcDNA, 230 bp