Table 1.
Sham (reference values) | Sham + PD173074 |
5/6 Nx + Vehicle |
5/6 Nx + PD173074 |
ANOVA | ||||
---|---|---|---|---|---|---|---|---|
Pre-treatment | Post-treatment | Pre-treatment | Post-treatment | Pre-treatment | Post-treatment | P-value | ||
(n = 8) | (n = 4) | (n = 4) | (n = 8) | (n = 8) | (n = 7) | (n = 7) | ||
Body weight (g) | 353 ± 13 | 196 ± 6*,***,****,***** | 335 ± 21 | 311 ± 13 | 378 ± 20 | 292 ± 20** | 356 ± 19 | <0.0001 |
Weight gain over 3 weeks (g) | 163 ± 10 | 140 ± 15 | 67 ± 11* | 76 ± 27* | 0.0007 | |||
Serum creatinine (mg/dL) | 0.19 ± 0.02 | 0.18 ± 0.01 | 0.21 ± 0.01 | 0.52 ± 0.04*,**,*** | 0.56 ± 0.04*,**,*** | 0.46 ± 0.06*,**,*** | 0.52 ± 0.05*,**,*** | <0.0001 |
Blood urea nitrogen (mg/dL) | 17 ± 0.1 | 14 ± 1.7 | 15 ± 0.7 | 37 ± 3.3*,**,*** | 35 ± 1.6*,**,*** | 41 ± 7.4*,**,*** | 33 ± 3.4*,**,*** | <0.0001 |
Creatinine clearance (mL/min/100 g) | 0.99 ± 0.07 | 0.90 ± 0.09 | 0.94 ± 0.06 | 0.40 ± 0.03*,**,*** | 0.40 ± 0.04*,**,*** | 0.46 ± 0.06*,**,*** | 0.45 ± 0.05*,**,*** | <0.0001 |
Urine protein (mg/mg creatinine) | 0.3 ± 0.03 | 0.3 ± 0.05 | 0.36 ± 0.02 | 5.8 ± 1.9 | 3.9 ± 1.4 | 5.4 ± 1.5 | 4.2 ± 1.6 | 0.0185 |
Systolic blood pressure (mmHg) | 139 ± 2.5 | 137 ± 6.3 | 138 ± 4.1 | 213 ± 4.7*,**,*** | 215 ± 6.4*,**,*** | 203 ± 6.2*,**,*** | 203 ± 5.2*,**,*** | <0.0001 |
Serum phosphate (mg/dL) | 6.9 ± 0.3 | 6.4 ± 0.2 | 7.1 ± 0.6 | 6.1 ± 0.5 | 6.0 ± 0.3 | 5.9 ± 0.6 | 5.7 ± 0.5 | 0.3297 |
Serum FGF23 (pg/mL) | 194 (179–225) | 190 (171–208) | 292 (230–351) | 947 (676–1159)*,**,*** | 1315 (345–1900)*,**,*** | 548 (402–1111)*,**,*** | 865 (649–1434)*,**,*** | <0.0001 |
PTH (pg/mL) | 73 ± 18 | nd | nd | 177 ± 26 | 118 ± 40 | 127 ± 29 | 60 ± 39 | 0.0848 |
1,25(OH)2D | 143 ± 9 | nd | nd | 144 ± 10 | 125 ± 11 | 144 ± 9 | 131 ± 8 | 0.4932 |
Results are mean ± SEM or median (25–75th percentiles). Reference values: data from sham rats after 3 weeks of treatment with vehicle. Sham animals receiving NaCl pre-treatment: 2 weeks after 5/6 nephrectomy surgery; post-treatment: after 3 weeks of treatment with vehicle or PD173074; weight gain: difference (in g) between weight from pre- to post-treatment; FGF, fibroblast growth factor; PTH, parathyroid hormone; 1,25(OH)2D, 1,25-dihydroxyvitamin D. nd, not determined.
*P < 0.001 in comparison with Sham.
**P < 0.05 in comparison with Sham + PD173074 pre-treatment.
***P < 0.05 in comparison with Sham + PD173074 post-treatment.
****P < 0.05 in comparison with 5/6 Nx + vehicle post-treatment.
*****P < 0.05 in comparison to 5/6 Nx + PD173074 post-treatment.