Table 1.

List of primers used for riboprobe generation (in situ hybridization, ISH) and in RT-PCR experiments

Gene	Primer sequence	Size	Accession no.
β-actin (PCR)	F: 5′-CACCCTGTGCTGCTCACC-3′	328 bp	NM_007393
	R: 5′-GCACGATTTCCCTCTCAG-3′
5-HT3A (PCR)	F: 5′-AACAGCTATGCAGAAATGAAGTT-3′	66 bp	NM_013561
	R: 5′-GGCTGACTGCGTAGAATAAAGG-3′
5-HT3A (for ISH)	F: 5′-GCCTTGACATCTACAACTTCCC-3′	660 bp	NM_013561
	R: 5′-GAGCAGTCATCAGTCTTGTTGG-3′