Prospects of Stem Cell Therapy in Osteoarthritis
Osteoarthritis (OA) is the most common form of arthritis and it affects millions of people on the world. The disease brings about the ultimate destruction of synovial joints. For the patients, quality of life is reduced because of the loss of movement and function and, as the disease progresses, pain from the joint increase to become continuous, even occurring at rest. Underlying the disease is a loss of the normal homeostasis of the joint, generally leading to excessive catabolism relative to anabolism. The arthritic joint can, however, demonstrate apparent repair mechanism, although these often result in overactive but aberrant production of bone and cartilage in the form of osteophytes. OA was previously thought of as a wear and tear process. More recently it has been defined, not as a single condition, but rather a common complex disorder with three groups of risk factors: genetic, constitutional (aging and obesity) and local (biomechanical consequence of joint injury, joint laxi...