Table 1. Primers used for real-time PCR.
| Genes | Primers | Sequences(5′-3′) | Size(bp) | TA1(°C) |
| Slc1a5 | Forward | GATTGTGGAGATGGAGGATGTGG | 128 | 58 |
| Reverse | TGCGAGTGAAGAGGAAGTAGATGA GA | |||
| Slc6a19 | Forward | TCTGTCCACAACAACTGCGAG | 206 | 57 |
| Reverse | CAGCGAAGTTCTCCTGCGTC | |||
| GAPDH | Forward | AAGGAGTAAGAGCCCCTGGA | 140 | 60 |
| Reverse | TCTGGGATGGAAACTGGAA |
TA, Annealing temperature.