Table 2.
Muscle fiber analyses in Non-OVX or OVX rats treated either with ostarine (OST), raloxifen (RAL) or combination (OST + RAL)
| Groups | Non-OVX | OVX | OST | RAL | OST + RAL | ANOVA p-value |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sample size | 13 | 15 | 15 | 15 | 15 | ||||||
| Parameters | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| GM | |||||||||||
| STO + FTO | |||||||||||
| Area (µm2) | 1597 | 452 | 1970 | 244 | 1938 | 303 | 1922 | 440 | 1849 | 315 | 0.159 |
| Diameter (µm) | 44d | 6 | 50 | 3 | 49 | 4 | 51 | 7 | 48 | 4 | 0.044 |
| FTG | |||||||||||
| Area (µm2) | 3964 | 900 | 4829 | 1193 | 4987 | 1059 | 3667 | 671 | 3576 | 902 | 0.108 |
| Diameter (µm) | 70 | 8 | 77e | 9 | 78de | 8 | 68 | 6 | 67 | 8 | 0.004 |
| LM | |||||||||||
| STO + FTO | |||||||||||
| Area (µm2) | 1669 | 294 | 1900de | 435 | 1704 | 253 | 1479 | 258 | 1498 | 309 | 0.011 |
| Diameter (µm) | 46 | 4 | 50de | 7 | 46 | 4 | 43 | 4 | 43 | 4 | 0.008 |
| FTG | |||||||||||
| Area (µm2) | 4738 | 810 | 5920 | 1323 | 6187 | 1400 | 5218 | 1202 | 5413 | 1297 | 0.055 |
| Diameter (µm) | 77 | 7 | 88 | 11 | 88 | 11 | 80 | 9 | 82 | 10 | 0.060 |
| SM | |||||||||||
| STO | |||||||||||
| Area (µm2) | 4079 | 593 | 4214d | 470 | 4097 | 322 | 3439 | 414 | 3716 | 924 | 0.026 |
| Diameter (µm) | 72 | 5 | 73 | 4 | 72 | 3 | 66 | 4 | 68 | 8 | 0.224 |
| Percentage of fibers in LM (%) | |||||||||||
| STO + FTO | 50 | 7 | 52 | 8 | 49 | 7 | 54 | 6 | 48 | 4 | 0.181 |
| FTG | 50 | 7 | 48 | 8 | 51 | 7 | 46 | 6 | 52 | 4 | 0.181 |
SD Standard deviation, STO + FTO slow-twitch oxidative and fast-twitch oxidative fibers, FTG fast-twitch glycolytic fibers, GM gastrocnemius muscle, LM longissimus muscle, SM soleus muscle
dDifferent from RAL,eFrom OST + RAL (Tukey test, p < 0.05)