PMID: 3383466May 1, 1988Paper

Detection of myocardial reperfusion by analysis of serum creatine kinase isoforms

Clinical Cardiology
H TsukamotoT Satake

Abstract

Serum creatine kinase (CK) MM isoforms were determined by chromatofocusing in 22 patients with acute myocardial infarction undergoing intracoronary thrombolysis. In 13 patients with successful coronary recanalization within 3.6 +/- 1.0 (SD) h after onset, time to peak CK activity occurred 13 +/- 3 h after onset which was significantly shorter (p less than 0.01) than that in 9 patients without coronary recanalization (20 +/- 4 h). The proportion of CK MM-A, the myocardial isoform, in serum in the reperfused group at 6, 10, and 14 h after onset (53 +/- 9, 38 +/- 5, and 27 +/- 4%, respectively) was always significantly lower (p less than 0.01) than that in the nonreperfused group (69 +/- 7, 59 +/- 8, and 43 +/- 4%). During the same period, the proportions of CK MM-B and CK MM-C, the converted isoforms derived intravascularly from MM-A by circulating carboxypeptidase, in the reperfused group were always significantly higher (p less than 0.01) than those in the nonreperfused group. The ratios of MM-A% to MM-B% and MM-A% to MM-C% amplified the differences between the two groups. At 10 h after onset, these ratios clearly differentiated the reperfused and the nonreperfused group at the values of 1.0 (MM-A/MM-B) and 3.0 (MM-A/MM-C) with...Continue Reading

References

Jun 15, 1978·Clinica Chimica Acta; International Journal of Clinical Chemistry·R A WeversJ B Soons
Mar 15, 1977·Clinica Chimica Acta; International Journal of Clinical Chemistry·R A WeversJ B Soons
Jun 1, 1987·Cardiovascular Research·T KojimaT Satake
Feb 28, 1986·Clinica Chimica Acta; International Journal of Clinical Chemistry·M PanteghiniN Pagnoni
Oct 1, 1972·Circulation·B E SobelR D Yoder
Jul 15, 1984·The Biochemical Journal·R J Edwards, D C Watts

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