What is the primary action of metalloproteinases in the extracellular matrix?
AModification of collagen structure
BDegradation of extracellular matrix components, including collagen
CFormation of collagen
DActivation of collagen synthesis
Which of the following is NOT a radiological feature of osteoarthritis?
AOsteophytes
BCystic lesions close to articular surface.
CNarrowing of joint space
DSubchondral bone is translucent
Which of the following is the difference between rheumatoid arthritis and osteoarthritis?
AOsteophytes are seen in osteoarthritis
BSystemic symptoms are seen in rheumatoid arthritis
CRheumatoid arthritis is common in hands and feet
DOsteoarthritis is not an autoimmune disease
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