Clinical Chemistry
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Clinical Chemistry 22: 63-66, 1976;
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Clinical Chemistry, Vol 22, 63-66, Copyright © 1976 by American Association for Clinical Chemistry

Creatine kinase isoenzymes in baboon tissues and organs

WG Yasmineh, RB Pyle, NQ Hanson and BK Hultman

We determined the activity of the isoenzymes of creatine kinase in homogenates of fresh tissues from six baboons. Twenty-six tissues were removed from each baboon and the isoenzymes in them were separated by chromatography on diethylaminoethyl-Sephadex A-50. Total activity was greatest in skeletal muscle (2600 U/g wet weight) followed by myocardium (800 U/g), brain (180 U/g), and the bladder and tissues of the gastrointestinal tract (about 100 U/g). Ten tissues had total activities of less than 20 U/g: trachea, lung, kidney, thyroid, gall bladder, liver, spleen, pancreas, common bile duct, and adrenal. Skeletal muscle contained only the MM isoenzyme; myocardium contained 81% MM isoenzyme, 18% MB isoenzyme, and 1% BB isoenzyme. Except for thyroid and pancreas, all other tissues contained mainly the BB isoenzyme. Tissues of the gastrointestinal tract contained significant (7 to 17%) MB isoenzyme activity.




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Copyright © 1976 by the American Association for Clinical Chemistry.