Hyaluronona
Hyaluronona, also known as hyaluronic acid or hyaluronan, is a naturally occurring, linear anionic polysaccharide in the glycosaminoglycan family. It is built from repeating disaccharide units of D-glucuronic acid and N-acetyl-D-glucosamine, connected by alternating β(1→3) and β(1→4) glycosidic bonds. Unlike other GAGs, hyaluronona is non-sulfated and is not covalently attached to a core protein to form proteoglycans.
Hyaluronona is a major component of the extracellular matrix in connective tissues, skin, cartilage, synovial fluid,
Functions of hyaluronona include hydration and viscoelasticity of tissues, lubrication of joints, and formation of a
In medicine and cosmetics, hyaluronona is used in intra-articular injections for osteoarthritis, as a viscoelastic agent