Proximal intestinal d-fructose uptakes per centimeter at days 2 (A), 5 (B), 8 (C), and 14 (D) postirradiation, and uptake per milligram at days 2 (E), 5 (F), 8 (G), and 14 (H) postirradiation at different absorbed doses. Results are means ± SE of 6 independent experiments. See text for P values of two-way and one-way ANOVAs. Similar per centimeter and per milligram results suggest that reductions were likely due to decreased transporters per cell and not to decreases in number of cells.