Cardiac Troponin CHEST Volume 111, Issue 1, Pages 2-4 (January 1997) Chris S. Brown, MD, Barry D. Bertolet, MD  CHEST  Volume 111, Issue 1, Pages 2-4 (January 1997) DOI: 10.1378/chest.111.1.2 Copyright © 1997 The American College of Chest Physicians Terms and Conditions

FIGURE 1 The troponin complex. The troponin complex consists of troponins T (Tn-T), I (Tn-I), and C (Tn-C). The elongated tail of troponin T (Tn-Tl) joins an adjacent tropomyosin strand. (Reproduced with permission from Katus et al.7) CHEST 1997 111, 2-4DOI: (10.1378/chest.111.1.2) Copyright © 1997 The American College of Chest Physicians Terms and Conditions

FIGURE 2 Temporal change in CK and troponin (TnT) levels in response to myocyte injury. Time 0 represents onset of symptoms in patients with myocardial infarction. Note that rate of rise of these two markers is similar; however, troponin remains elevated for several days longer than CK. This feature makes troponin a useful tool for diagnosing recent myocardial infarctions. (Reproduced with permission from Katus et al.7) CHEST 1997 111, 2-4DOI: (10.1378/chest.111.1.2) Copyright © 1997 The American College of Chest Physicians Terms and Conditions