“…Oligonucleotides complementary to rat galanin nucleotides 152-199 (Vrontakis et al, 1987), tyrosine hydroxylase (TH) nucleotides 1441-1488 (Grima et al, 1985), tryptophan hydroxylase 2 (TPH2) nucleotides 489-536 (Walther et al, 2003), rat 5-HT 1A receptor nucleotides 762-809 and 1048-1095 (Albert et al, 1990) and 5-HT transporter (5-HTT) nucleotides 305-352 (Hoffman et al, 1991) were used to study mRNA expression levels in the LC (TH and galanin) and in the DR/MR (TPH2, galanin, 5HT 1A , and 5-HTT). Oligonucleotide probes were labeled with 33 P (dATP) (NEN) at the 3 0 -end using terminal deoxynucleotidyltransferase (Amersham, Amersham, UK) and purified using ProbeQuantt G-50 microcolumns (Amersham Pharmacia Biotech, Piscataway, NJ, USA).…”