Fig. 8. Influence of exogenous hyaluronan, hyaluronidase and hyaluronan oligosaccharides on the migration of the REK cells. (A) 100 µg/ml of purified hyaluronan was added to the cultures after wounding. The means±s.e. from nine separate experiments are shown. The asterisk indicates a statistically significant difference from untreated cultures (P<0.018, paired t-test). (B) 1 U/ml of Streptomyces hyaluronidase was added to the culture medium after wounding. The means±s.e. of three experiments are shown. (C) Hyaluronan decasaccharides (450 µg/ml) were added to the medium after wounding. Means±s.e. of six separate experiments are shown.