Figure 1.

A, Representative red fluorescence images of tumor, muscle and skin at 0.5 h and 6 h post HY administration shows increased uptake in the tumor at 6 h time point compared to 0.5 h. B, Tumor to normal tissue ratio was greater at 6 h compared to 0.5 h post HY administration, p < 0.01, indicating greater tumor uptake. Each group represents the mean (bars, SE) of 8 animals.