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Figure 5 Shown are the changes in the level of interleukin (IL)-6 between the aortic root and the distal coronary artery and between aortic root and coronary sinus in the unstable patients undergoing percutaneous coronary intervention (n = 9). There is minimal change in IL-6 across the culprit plaque but a significant rise across the myocardial bed (p < 0.05).