Table 3.

Expression of dihydropyridine and ryanodine receptors and enzyme activities in white muscle of salmon

Velocity (BL s−1)Duration (weeks)DHPR (intensity)DHPR (oDu)RyR (oDu)SDH (1/intensity) × 1000Phosphorylase (1/intensity) × 1000
1213.3±1.2‡0.034±0.0025‡0.043±0.0021‡6.3±0.0514.5±0.48
1.5219.0±1.9‡0.017±0.0018‡0.021±0.00166.4±0.06*10.9±0.27‡
2218.0±1.5‡0.021±0.0010‡0.028±0.00156.5±0.05†13.4±0.81*
Control (0.5)27.2±1.10.010±0.00000.025±0.00226.2±0.0514.9±0.40
1418.4±1.8*0.016±0.0015†0.022±0.0015†6.5±0.05*13.7±0.33‡
1.5418.0±1.6*0.014±0.0012†0.022±0.0013†6.4±0.0515.6±0.34‡
2416.7±1.2*0.014±0.0012*0.019±0.0013*6.6±0.05‡13.5±0.88‡
Control (0.5)413.6±0.80.010±0.00080.016±0.00166.4±0.0517.8±0.42
1615.9±1.2‡0.020±0.0014‡0.026±0.0018‡6.8±0.05‡16.3±0.45
1.5620.0±1.3‡0.018±0.0015‡0.027±0.0019‡6.8±0.08‡13.2±0.51‡
2618.0±1.5‡0.012±0.0010†0.017±0.0011†6.8±0.04‡16.2±0.65
Control (0.5)65.4±0.60.008±0.00070.013±0.00126.2±0.0417.3±0.62
  • Dihydropyridine receptor (DHPR) and ryanodine receptor (RyR) optical density unit (oDu) values were detected on membranes containing electrophoretically separated DHP and Ry receptors, treated with specific antibodies against the receptors.

    Values are means ± s.e.m. (N=18 in each group). Significant difference between control and trained group: *P<0.05,† P<0.01 or ‡P<0.001.