Table 3.
Comparison of mRNA expression in the left ventricle of trained (TRN) and sedentary rats (SED) for Ca2+ handling proteins and adrenoceptors
| Target | Sedentary | Trained | P value |
|---|---|---|---|
| Calcium handling | |||
| Sarco-Endoplasmic Reticulum Ca2+-ATPase type 2A | |||
| Atp2a2-Rn00568762_m1 | 1.01 ± 0.02 | 1.06 ± 0.05 | n.s. 0.365 |
| L-type Ca2+ channel 1C | |||
| Cacna1c-Rn00709287_m1 | 1.34 ± 0.04 | 1.40 ± 0.05 | n.s. 0.295 |
| Phospholamban | 1.23 ± 0.07 | 1.23 ± 0.07 | n.s. 0.942 |
| Ryanodine receptor 2 | |||
| Ryr2-Rn01470303_m1 | 1.19 ± 0.08 | 1.21 ± 0.07 | n.s. 0.819 |
| Ca2+–calmodulin-dependent protein kinase II | |||
| Camk2d-Rn00560913_m1 | 0.93 ± 0.01 | 0.93 ± 0.02 | n.s. 0.869 |
| Calsequestrin 2 | |||
| Casq2-Rn00567508_m1 | 1.04 ± 0.02 | 1.06 ± 0.03 | n.s. 0.566 |
| Sodium–calcium exchanger | |||
| Slc8a1-Rn00570527_m1 | 1.05 ± 0.06 | 1.09 ± 0.09 | n.s. 0.746 |
| Adrenoceptors | |||
| α1a-Adrenergic receptor | |||
| Adra1a-Rn00567876_m1 | 1.00 ± 0.12 | 0.95 ± 0.07 | n.s. 0.69 |
| β1-Adrenergic receptor | |||
| Adrb1-Rn00824536_s1 | 1.27 ± 0.06 | 1.19 ± 0.08 | n.s. 0.427 |
| β2-Adrenergic receptor | |||
| Adrb2-Rn00560650_s1 | 1.21 ± 0.05 | 1.06 ± 0.04 | SED > TRN 0.034 |
Assay identification reference is given below target's common name. Data are from n= 10 hearts from trained and 10 from sedentary rats. P value is the probability derived from Student's unpaired t test; n.s. not significant.