SUSTAINED-RELEASE HYDROGEL PREPARATION

摘要

It is intended to provide a sustained-release hydrogel preparation containing a cationic gelatin hydrogel and galectin-1 or a galectin-1 derivative. The sustained-release hydrogel preparation of the invention can control the elution of galectin-1 or the galectin-1 derivative in vivo in a mammal. In the cationized gelatin hydrogel, the substitution ratio of carboxyl groups with amino groups in the gelatin hydrogel may be 10% or more and 60% or less. Further, the water content of the cationized gelatin hydrogel may be 80% or more and 99.8% or less.