title: An essay on the biology of osteoarthritis.
mesh_terms: D000375:Aging; D002358:Cartilage, Articular / Q000378:metabolism* / Q000473:pathology; D002807:Chondroitin / Q000378:metabolism; D006801:Humans; D006821:Hyaluronoglucosaminidase / Q000378:metabolism; D010003:Osteoarthritis / Q000209:etiology* / Q000378:metabolism; D010146:Pain; D011134:Polysaccharides / Q000096:biosynthesis; D012313:RNA / Q000096:biosynthesis; D013582:Synovial Fluid / Q000378:metabolism
chemical_list: D011134:Polysaccharides; D012313:RNA; D002807:Chondroitin; D006821:Hyaluronoglucosaminidase