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  • Title: Electrophoresis of creatine kinase isoforms: a highly sensitive fluorescence scanning method.
    Author: Zhao X, Bi C, Yang Z.
    Journal: Chin Med J (Engl); 1999 Apr; 112(4):312-5. PubMed ID: 11593528.
    Abstract:
    OBJECTIVE: To develop an agarose electrophoretic method for creatine kinase (CK) isoforms, using highly sensitive fluorescence scanning. METHODS: A discontinuous buffer system was used. Electrophoresis on agarose gel was performed under constant current and low voltage. CK isoforms were separated within 30 minutes and detected by fluorescence scanning. RESULTS: There were no significant differences when the activities of CK-MM were between 853.0 U/L and 14.0 U/L and those of CK-MB between 152.0 U/L and 2.4 U/L. The detection limits of stain method for CK-MM and CK-MB isoforms were 36.0 U/L and 12.3 U/L, respectively; while those of fluorescence method were 12.0 U/L and 2.1 U/L. The experimental results showed good precision for CK-MM isoforms, as well for CK-MB isoforms and isoenzymes. CONCLUSION: An agarose electrophoretic method has been developed to measure CK isoenzymes and isoforms clinically. This method is rapid, simple, sensitive, highly reproducible and inexpensive. It is suitable for general laboratories.
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