Abstract
Summary
ATEe esterase activity can be precipitated from fresh human serum by dilution of the serum with distilled water and adjustment of pH between 6.8 and 7.4. The activity of this fraction of serum is not enhanced by addition of streptokinase. Its properties are closely similar to those of C’1 esterase activity of serum. Human serum also contains an inhibitor, which is precipitated from diluted serum by adjusting the pH to 5.2. The inhibitor combines reversibly with ATEe esterase. Preliminary studies show striking depletion of the activity of ATEe esterase in parenchymal liver disease and in long standing diabetes mellitus.
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