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The metabolic changes and their influence on the isolated liver were studied in 21 experiments on pig liver, perfused with human blood during the period of 3 hrs. It was detected, that rather active carbohydrate and nitrogenic metabolism has been maintained in the liver during 1.5-2 hrs. But after the 2nd hr of perfusion the phenomens of perfusion the phenomens of hypoxia increased, that caused the inhibition of metabolic processes and leaded to deterioration of liver function. The experience of clinical perfusions showed, that the functional activity of assisted liver over the period of 90 min was so depressed, that the organ couldn't provide positive clinical effect.

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In patients receiving cyclosporine A (CyA)-based immunosuppressive therapy, Ca2+ channel blockers (CCBs) prevent the development of CyA-related nephrotoxicity in which increased Ca2+ content plays an important role. We evaluated the dynamics of the intracellular (erythrocytes) and extracellular (plasma) Ca2+ levels and the influence of the CCB, Phenihydine, on this process during the conversion from Sandimmun (S) to Sandimmun Neoral (SN). Forty-two patients were enrolled. The conversion from S to SN normalized the elevated CA2+ level of erythrocytes in groups with Phenihydine (n = 20) and without Phenyhidine (n = 12) 4 weeks after the switch (P < 0.05); this level remained stable until the end of study. Therefore we suggest that the switch from S to SN is effective in reducing elevated intracellular Ca2+ levels. The decrease of Ca2+ content in erythrocytes was similar in all groups switched to SN (with or without Phenihydine). The last effect should be an important argument to focus the further long-term investigations on the ability of CCBs to act as cytoprotective and neophroprotective agents during immunosuppressive protocols with the new microemulsion formulation of CyA.

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