Task: Answer Verification
Input (English): Question: Is the presence of citrullinated proteins specific for rheumatoid synovial tissue?
Answer: The presence of citrullinated proteins in the inflamed synovium is not specific for RA, but rather, it may be an inflammation-associated phenomenon. The high specificity of the anti-citrullinated protein antibodies is, therefore, most likely the result of an abnormal humoral response to these proteins.
Output (English): no