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  • Title: Changes in serum total creatine phosphokinase (CPK) and its isoenzymes caused by experimental ligation of the superior mesenteric artery.
    Author: Graeber GM, Cafferty PJ, Reardon MJ, Curley CP, Ackerman NB, Harmon JW.
    Journal: Ann Surg; 1981 Apr; 193(4):499-505. PubMed ID: 7212812.
    Abstract:
    The changes in serum total CPK and its isoenzymes have not been delineated in acute mesenteric infarction. As measurement of serum CPK levels could conceivably be a useful diagnostic test for bowel infarction, this experiment was performed to assess changes in serum CPK levels in bowel infarction in dogs, using sham operation and talc peritonitis as controls. Laparotomies were performed in 20 dogs, and each was as signed randomly to one of three groups: those having laparotomy (LAP), talc peritonitis (PER), and superior mesenteric artery infarction (MAI). Mixed venous blood samples were obtained from all subjects for 30 hours after surgery. All animals were killed, and complete autopsies were performed. Confirmation of infarction and determination of its extent were obtained through both gross and microscopic examination of the gut in canines subjected to arterial infarction. Total serum CPK levels were determined by spectrophotometric analysis. Agarose gel electrophoresis was used to determine the levels of each of the isoenzymes. Significant elevations of CPK and CPK-MM occurred nine hours after injury. CPK-BB reached maximum elevation by six hours, while CPK-MB did not reach its maximum until 24 hours after injury. From data in the study we conclude that total CPK and its isoenzymes become elevated in the serum of canines subjected to experimental superior mesenteric artery infarction. That CPK-BB elevations peak in the first 12 hours after injury and CPK-MB in the second 12 hours after injury may be of particular diagnostic significance.
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