Table 1.
WT | Ctns −/− | WT | Ctns −/− | WT | Ctns −/− | WT | Ctns −/− | |
---|---|---|---|---|---|---|---|---|
1‐month‐old (n = 8) | 1‐month‐old (n = 8) | 4‐month‐old (n = 8) | 4‐month‐old (n = 8) | 9‐month‐old (n = 8) | 9‐month‐old (n = 8) | 12‐month‐old (n = 8) | 12‐month‐old (n = 8) | |
BUN (mg/dL) | 24.8 ± 2.1 | 25.8 ± 1.5 | 26.9 ± 1.3 | 25.8 ± 0.6 | 27.0 ± 1.5 | 59.2 ± 2.1 a | 28.3 ± 1.9 | 67.8 ± 7.8 a |
Creatinine (mg/dL) | 0.06 ± 0.02 | 0.05 ± 0.02 | 0.07 ± 0.01 | 0.07 ± 0.01 | 0.07 ± 0.01 | 0.11 ± 0.02 a | 0.09 ± 0.01 | 0.18 ± 0.02 a |
Bicarbonate (mg/dL) | 25.8 ± 2.3 | 26.8 ± 1.6 | 27.5 ± 0.5 | 27.3 ± 1.2 | 27.2 ± 0.5 | 27.1 ± 0.4 | 28.8 ± 1.4 | 26.9 ± 0.7 |
Calcium (mg/dL) | 9.53 ± 0.12 | 9.27 ± 0.26 | 9.62 ± 0.10 | 10.02 ± 0.09 | 9.32 ± 0.11 | 9.21 ± 0.05 | 9.43 ± 0.12 | 9.49 ± 0.05 |
Phosphorus (mg/dL) | 9.54 ± 0.21 | 9.27 ± 0.16 | 9.60 ± 0.32 | 8.20 ± 0.26 b | 8.65 ± 0.16 | 7.76 ± 0.22 b | 8.82 ± 0.31 | 7.38 ± 0.16 b |
Intact PTH (pg/mL) | 90.4 ± 6.3 | 90.5 ± 4.8 | 93.8 ± 5.1 | 101.1 ± 2.7 | 103.2 ± 10.4 | 264.6 ± 9.5 a | 118.9 ± 11.7 | 432.8 ± 12.8 a |
25(OH)D3 (ng/mL) | 123.2 ± 19.3 | 101.8 ± 12.9 | 113.2 ± 15.7 | 108.2 ± 14.8 | 120.1 ± 20.5 | 46.9 ± 8.1 b | 106.5 ± 12.1 | 50.7 ± 12.6 b |
1,25(OH)2D3 (pg/mL) | 302.4 ± 16.4 | 252.6 ± 32.7 | 254.5 ± 17.4 | 184.4 ± 14.8 | 276.4 ± 30.6 | 157.8 ± 19.4 b | 276.8 ± 17.9 | 115.7 ± 32.6 b |
FGF23 (pg/mL) | 102.6 ± 18.3 | 105.8 ± 21.7 | 105.2 ± 11.4 | 113.2 ± 18.4 | 121.5 ± 20.6 | 202.1 ± 19.6 a | 108.2 ± 15.2 | 216.9 ± 22.9 a |
Leptin (ng/dL) | 2.21 ± 0.16 | 2.37 ± 0.12 | 2.33 ± 0.09 | 2.34 ± 0.11 | 2.32 ± 0.05 | 3.49 ± 0.06 a | 2.49 ± 0.8 | 5.54 ± 0.12 a |
All mice were fed ad libitum. Data are expressed as mean ± SEM. Results of Ctns −/− mice were compared with age‐matched WT mice.
BUN, blood urinary nitrogen; FGF23, fibroblast growth factor 23; PTH, parathyroid hormone.
P < 0.05, significantly higher in Ctns −/− mice than WT mice.
P < 0.05, significantly lower in Ctns −/− mice than WT mice.