Composition containing glycosaminoglycans and proteins

A composition comprising a first, second and third constituents, wherein

• the first constituent is a glycosaminoglycan, a hydrolyzed glycosaminoglycan, a glycosamine, chemically modified or not or a blend of different glycosaminoglycans, hydrolysed glycosaminoglycans, glycosamines, chemically modified or not;
• the second constituent is a protein, a peptide or a blend of different proteins or peptides;
• and
• the third constituent is a polyhydroxyurethane (PHU) which is obtained by the covalent coupling of bis or poly cyclic carbonates (CC) and di or polyamines (PA) molecules,
• wherein the ratio of the number of non polymerized, or covalently bound carbonate cyclic functions from CC monomers, PRE-CC and chemically modified first and second constituents, and the number of non polymerized, or covalently bound primary and secondary amine functions from PA monomers, the PRE-PA and the chemically modified first and second constituents are between 50 and 0.02.