| abstract |
This disclosure relates to methods for obtaining immobilized enzyme preparations, in particular to a preparation and application of a novel active conjugate of an enzyme with a polymer carrier. Said conjugate possesses the properties of the known Longidaza® drug and inhibits hyperplasia of connective tissue, and presents anti-inflammatory action, and can be used for manufacturing stable, active and safe in use long-acting drugs in the form of a suppository, ointment, injection, cosmetic cream, and for making veterinary drugs. These methods include conjugation of hyaluronidase with a water-soluble copolymer using the carbodiimide or azide conjugation method. The conjugation is carried out with the use of a copolymer N-oxide 1,4-ethylene piperazine, (N carboxymethyl)-1,4-ethylene piperazine or its hydrazide, and 1,4-ethylene piperazine of general formula: n n n n n n n n n n where n is from 40% to 90% of the total number of units; n m is from 3% to 40% of the total number of units; and n n+m+1=100%. |