© 2003 the American Academy of Orthopaedic Surgeons Articular Cartilage BiologyDr. Ulrich-Vinther is Clinical Assistant, Department of Orthopedics, Århus University Hospital, Århus, Denmark. Dr. Maloney is Assistant Professor, Department of Orthopaedics, University of Rochester Medical Center, Rochester, NY. Dr. Schwarz is Associate Professor, Center for Musculoskeletal Research, University of Rochester Medical Center. Dr. Rosier is Professor and Director, Center for Musculoskeletal Research, University of Rochester Medical Center. Dr. OKeefe is Professor and Associate Director, Center for Musculoskeletal Research, University of Rochester Medical Center. Reprint requests: Dr. OKeefe, University of Rochester Medical Center, Box 665, 601 Elmwood Avenue, Rochester, NY 14642.
Articular cartilage is a complex tissue maintained by chondrocytes, which undergo metabolic changes as a result of aging, disease, and injury. These changes may hinder tissue maintenance and repair, resulting in accelerated loss of articular surface and leading to end-stage arthritis. Researchers are investigating both normal and pathologic cellular and molecular processes as well as the development of chondroprotective agents to improve the metabolic function of articular cartilage. Current research is helping to clarify the mechanisms by which a variety of agents, such as glucosamine, chondroitin sulfate, hyaluronic acid, green tea, glucocorticoids, and nonsteroidal anti-inflammatory drugs, can modify the symptoms and course of osteoarthritis. Also under investigation are methods of stimulating repair or replacing damaged cartilage, such as matrix metalloproteinase inhibitors, gene therapy, growth factors, cytokine inhibitors, and artificial cartilage substitutes. Tissue engineering, the combining of artificial matrices with cells and growth factors or genes, offers great potential for improving patient care. This article has been cited by other articles:
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