Effects of creatinol O-phosphate on serum enzymes in acute myocardial infarction.

Two groups of 23 patients, each with acute myocardial infarction, were treated. The first group (control) received glucose-insuline-K+ (GIK) over a 3-day period, and the second GIK and N-methyl-N-(beta-hydroxyethyl) guanidine O-phosphate (creatinol O-phosphate, COP) (3.06 g i.v./24 h), again for a 3-day period. The six enzymes investigated, i. e. GOT, GPT, LDH, HBDH, CK and MBCK, all decreased between 33 and 49% in the COP group as compared with the control group, reaching a degree of statistical significance of less than 0.01. The decrease in these enzymes was attributed to the protective action of COP on the cell membrane permeability, in agreement with a series of previous papers.