Task: Answer Verification
Input (English): Question: Is increased serum HMGB1 related to the severity of coronary artery stenosis?
Answer: Serum HMGB1 level was markedly increased with the severity of coronary artery stenosis in patients with SAP and USAP, especially in SAP patients, which suggested that increased serum HMGB1 may involve in the pathogenesis of atherosclerotic CAD.
Output (English): yes