Figure 4.

Mature bovine patella tendons (left) that were treated with optimized genipin protocol had ~2.4 fold higher modulus values than initial t = 0 measurements. High dose gamma radiation significantly reduced control and genipin tendon modulus. However, only genipin-treated tissues were not significantly different from their t = 0 modulus values. For human patella tendons (right), optimized genipin treatment increased tensile modulus ~1.4 fold. Gamma radiation significantly reduced the tensile modulus of specimens below their pre-radiation and t = 0 values. *p < 0.05 from pre-radiation values, ^ p < 0.05 from respective control, †p < 0.05 from t = 0 values