Table 1.

Average fluorescence intensity

Final concentration of r-RGD-hirudin (μmol/l)	Fluorescence intensity (Means ± SD)
0.02	6.27 ± 0.13
0.04	13.72 ± 1.03
0.09	16.99 ± 1.21
0.18	27.67 ± 1.57
0.36	37.11 ± 1.90
0.88	56.78 ± 2.35
1.78	57.70 ± 2.54

IC₅₀ was 0.3 μmol/l which was calculated by linear correlation (Y = 12.25 + 54.18X, R = 0.96, X means final concentration of r-RGD-hirudin and Y means fluorescence intensity)