Table 4.
Ultimate Stress | Yield Stress | Strain to Yield, µε | Total Strain, µε | Modulus, GPa | Resilience, MPa | Toughness, MPa | |
---|---|---|---|---|---|---|---|
Group | |||||||
WT VEH | 141.12 ± 6.97 | 105.73 ± 12.89 | 16,012 ± 1124 | 99,029 ± 30,556 | 7.87 ± 0.30 | 0.95 ± 0.18 | 9.19 ± 1.93 |
Nmp4−/− VEH | 150.08 ± 8.71 | 121.23 ± 21.47 | 16,982 ± 2858 | 82,378 ± 26,470 | 8.55 ± 0.54 | 1.08 ± 0.31 | 8.86 ± 2.59 |
WT RAL | 155.49 ± 5.00 | 117.92 ± 5.13 | 16,552 ± 371 | 83,863 ± 19,659 | 8.06 ± 0.75 | 1.06 ± 0.12 | 9.15 ± 1.86 |
Nmp4−/− RAL | 159.48 ± 13.63 | 127.00 ± 22.37 | 16,999 ± 2556 | 75,610 ± 19,939 | 8.24 ± 1.13 | 1.20 ± 0.35 | 8.95 ± 2.10 |
WT PTH | 152.07 ± 4.20 | 97.09 ± 15.56 | 16,881 ± 3008 | 90,210 ± 29,366 | 7.57 ± 1.23 | 0.85 ± 0.28 | 9.46 ± 2.63 |
Nmp4−/− PTH | 157.94 ± 5.37 | 97.77 ± 9.56 | 15,021 ± 1932 | 91,519 ± 26,401 | 7.93 ± 0.30 | 0.82 ± 0.23 | 10.31 ± 2.28 |
WT PTH + RAL | 166.39 ± 3.78 | 102.76 ± 18.16 | 15,452 ± 34324 | 69,998 ± 19,460 | 8.44 ± 0.38 | 0.89 ± 0.32 | 8.16 ± 1.90 |
Nmp4−/− PTH + RAL | 173.39 ± 10.84 | 114.52 ± 13.66 | 15,321 ± 708 | 63,635 ± 16,321 | 8.64 ± 1.06 | 0.99 ± 0.20 | 8.09 ± 1.91 |
Two-way ANOVA genotype | G: P = 0.0012 | G: P = 0.0109 | G: P = 0.7849 | G: P = 0.1310 | G: P = 0.0559 | G: P = 0.1304 | G: P = 0.8913 |
Nmp4−/−: 160.22a | Nmp4−/−: 115.13a | ||||||
WT: 153.77b | WT: 105.87b | ||||||
Two-way ANOVA treatment | T: P < 0.0001 | T: P < 0.0001 | T: P = 0.2740 | T: P = 0.0016 | T: P = 0.0318 | T: P = 0.0031 | T: P = 0.0553 |
P + R: 169.89a | R: 122.46a | P: A 90864a | P + R: 8.54a | R: 1.13a | |||
R: 157.48b | V: 113.48a,b | V: A 90704a | V: 8.21a,b | V: 1.01a,b | |||
P: 155.00b | P + R: 108.64b,c | R: 79737a,b | R: 8.15a,b | P + R: 0.94a,b | |||
V: 145.60c | P: 97.43c | P + R: 66816b | P: 7.55b | P: 0.84c | |||
Two-way ANOVA G × T | G × T: P = 0.8141 | G × T: P = 0.5067 | G × T: P = 0.2220 | G × T: P = 0.6425 | G × T: P = 0.7598 | G × T: P = 0.6545 | G × T: P = 0.7901 |
Data represent average ± SD; n = 7–14 mice/group. Nmp4, nuclear matrix protein 4; WT, wild type; V/VEH, vehicle; R/RAL, raloxifene; P/PTH, parathyroid hormone; P/PTH + R/RAL, and parathyroid hormone + raloxifene; BV/TV, bone volume per total volume. Statistical analyses were performed using two-way ANOVA tests setting genotype (G) and treatment (T) as the independent variables. Statistical significance was set at P ≤ 0.05. The statistical results list the cohorts by genotype, treatment, and genotype × treatment.
a b cCohorts not connected by the same letter are statistically different; the average value of the specific parameter precedes the letter.