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Review Question - QID 214030

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QID 214030 (Type "214030" in App Search)
DNA methylation in periarticular cells, such as chondrocytes and synoviocytes, may play a role in the development and progression of osteoarthritis by modulating the expression of cartilage constituents, such as proteases. These changes, which do not involve DNA mutation, are an example of which of the following: