Table 2.
Summary of intestinal Ca transport.
Compound | Structure of a side chain (R) | Compd No. | Dose level (pmol/rat/day) | Intestinal Ca transport (increase in S/M ratio* compared to Vehicle) |
---|---|---|---|---|
1α,25-(OH)2D3 | - | 1 | 260 | 3.2 |
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4 | 260 | 4.0 |
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5 | 260 | 1.5 | |
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6 | 260 | 1.4 | |
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7 | 260 | 1.6 | |
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8 | 260 | 2.8 | |
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9 | 35100 | 2.4 |
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10 | 7020 | 3.0 | |
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13 | 35100 | 3.0 | |
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14 | 7020 | 3.2 | |
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11 | 35100 | 1.4 |
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15 | 35100 | 1.6 | |
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16 | 21060 | 1.6 |
S/M Ratio = the amount of calcium found in the serosal compartment divided by the amount of calcium present in the mucosal compartment