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Results for “BLOOD ALKALINE PHOSPHATASE”

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[Diagnostic significance of determining gamma-glutamyltranspeptidase and alkaline phosphatase activity in blood serum and bile in viral hepatitis B and in bile duct inflammation].

Diagnostic importance of gamma-glutamyl transpeptidase and alkaline phosphatase activities estimation in bile was demonstrated during inflammation of biliary ducts and gallbladder. Activation of these enzymes in B-bile in cholecystitis and in B- and C-bile--in cholecystocholangitis enabled to perform topical diagnosis. Correlation between the enzymatic activity in bile and blood allowed to diagnose acute viral hepatitis B and its combination with inflammation of biliary cuts.

Acute Disease↗

HEAT STABILITY OF HUMAN PLACENTAL ALKALINE PHOSPHATASE.

Alkaline phosphatase prepared from human placentae shows greater resistance to heat inactivation than any other known alkaline phosphatase of human origin. In the presence of magnesium this enzyme may be heated at 70 degrees C. for 30 minutes without loss of activity whereas other human alkaline phosphatases lose most of their activity on being heated at 56 degrees C. for this period of time. This heat stability is seen in freshly prepared enzyme, in alcohol-fractionated and freeze-dried material, and in the sera of individuals into whom placental alkaline phosphatase has been infused. The clinical implications of our observations are briefly indicated.

Alkaline Phosphatase↗

Heat inactivable fraction of alkaline phosphatase in marrow and peripheral blood.

We measured the total alkaline phosphatase activity and their heat-inactivable and heat-stable fractions both in marrow and in peripheral blood, collected from 16 patients undergoing bone marrow aspiration for diagnostic purposes. Total enzymatic activity and the heat-inactivable fraction, of bone source, were significantly higher in serum from medullary blood (p < 0.001). Although the heat-stable fraction, of non-bone source, was higher in serum from peripheral blood (p < 0.05), the inactivable fraction showed there the greater component (51.56 +/- 11.91%). Results seem to indicate that the quantification of the enzymatic fractions and of the ratios between them in comparison with marrow and peripheral blood may be useful in cases that pose diagnostic difficulties.

Adult↗