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Table 4 Intramuscular Adaptations and MHC mRNA Expression

From: Effects of arachidonic acid supplementation on training adaptations in resistance-trained males

Marker AA (n = 15) PLA (n = 16) Significance
Total protein (μg·g-1)    Group: 0.92
   Day 0 7.5 ± 4.5 6.6 ± 3.8 Time: 0.28
   Day 50 7.0 ± 4.5 8.2 ± 4.3a,b G × T: 0.05
FP receptor (INT·mm2·mg-1)    Group: 0.63
   Day 0 1,929 ± 1,395 2,253 ± 1,309 Time: 0.13
   Day 50 2,425 ± 1,746 2,518 ± 992 G × T: 0.64
EP3 receptor (INT·mm2·mg-1)    Group: 0.55
   Day 0 5,990 ± 3,563 6,854 ± 3,287 Time: 0.11
   Day 50 7,149 ± 3,383 7,529 ± 2,791 G × T: 0.66
MHC I protein (ng·ml-1)    Group: 0.78
   Day 0 187.8 ± 180.7 172.8 ± 123.0 Time: 0.64
   Day 50 176.3 ± 104.4 164.3 ± 126.6 G × T: 0.96
MHC IIa protein (ng·ml-1)    Group: 0.84
   Day 0 184.4 ± 217.1 156.9 ± 84.5 Time: 0.009
   Day 50 305.0 ± 366.3 295.8 ± 328.5 G × T: 0.84
MHC IIx protein (ng·ml-1)    Group: 0.55
   Day 0 128.7 ± 79.1 133.6 ± 83.5 Time: 0.23
   Day 50 103.9 ± 68.2 131.9 ± 81.7 G × T: 0.29
MHC I mRNA    Group: 0.45
   Day 0 0.69 ± 0.16 0.68 ± 0.14 Time: 0.70
   Day 50 0.64 ± 0.07 0.71 ± 0.15 G × T: 0.14
MHC IIa mRNA    Group: 0.32
   Day 0 0.66 ± 0.12 0.66 ± 0.14 Time: 0.55
   Day 50 0.63 ± 0.07 0.71 ± 0.13 G × T: 0.08
MHC IIx mRNA    Group: 0.42
   Day 0 0.66 ± 0.14 0.65 ± 0.15 Time: 0.98
   Day 50 0.62 ± 0.07 0.69 ± 0.14 G × T: 0.10
  1. Values are expressed as means ± SD.
  2. AA: Arachidonic acid, PLA: placebo, INT: integrated density units, MHC: myosin heavy chain.
  3. aSignificant within-group difference from baseline values, p < 0.05.
  4. bSignificant group × time (G × T) interaction, p < 0.05