The 19.ek.Fc microsphere rolling flux percentage is about 57% that of leukocyte rolling flux percentage.

The leukocyte and 19.ek.Fc microsphere rolling flux percentage was determined. The leukocyte rolling flux percentage was determined before and after injection of the 19.ek.Fc microspheres. The rolling flux percentage of the 19.ek.Fc microspheres was about 57% that of the leukocytes, suggesting that the level of adhesion of the 19.ek.Fc microspheres is significant. The rolling flux percentage of the 19.ek.Fc microspheres was, however, statistically lower than that of the leukocytes. L-B indicates leukocytes before injection of the microspheres; L-A, leukocytes approximately 5 minutes after injection of the microspheres; 19.ek.Fc, 19.ek.Fc microspheres. Data are taken from 5 different mice; *P < .01 for a comparison between 19.ek.Fc microspheres and leukocytes.