Quantitative method for determining serum alkaline phosphatase isoenzyme activity II. Development and clinical application of method for measuring four serum alkaline phosphatase isoenzymes.
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Quantitative method for determining serum alkaline phosphatase isoenzyme activity II. Development and clinical application of method for measuring four serum alkaline phosphatase isoenzymes.
A method for quantitating the liver, bone, intestinal and placental alkaline phosphatase activity of serum, using an algorithm for converting selective inactivation by guanidine hydrochloride, L-phenylalanine, and heat into equivalent isoenzyme activity is described. The method can individually quantify mixtures of isoenzymes to within a margin of 3%; it has acceptable reproducibility and has b...
متن کاملQuantitative method for determining serum alkaline phosphatase isoenzyme activity
The potential use of the protein denaturant guanidine hydrochloride to inhibit selectively the enzyme activity of serum alkaline phosphatase isoenzymes from liver, bone, intestine, and placenta was investigated. Inhibition of each isoenzyme was shown to be dependent on time and concentration of inhibitor. In the presence of 0-3 mol/l (28.7 g/l) guanidine hydrochloride for 170 seconds 14%, 47%, ...
متن کاملQuantitative method for determining serum alkaline phosphatase isoenzyme activity I. Guanidine hydrochloride: new reagent for selectively inhibiting major serum isoenzymes of alkaline phosphatase.
The potential use of the protein denaturant guanidine hydrochloride to inhibit selectively the enzyme activity of serum alkaline phosphatase isoenzymes from liver, bone, intestine, and placenta was investigated. Inhibition of each isoenzyme was shown to be dependent on time and concentration of inhibitor. In the presence of 0.3 mol/l (28.7 g/l) guanidine hydrochloride for 170 seconds 14%, 47%, ...
متن کاملQuantitative method for determining serum alkaline phosphatase isoenzyme activity: estimation of intestinal component.
Intestinal alkaline phosphatase activity was measured using levamisole inhibition, and results were compared with a previously reported method using L-phenylalanine. Sixty two per cent intestinal, 39% placental, and 1.3% of either bone or liver alkaline phosphatase activity remained when alkaline phosphatase activity was inhibited in a 2-amino-2-methyl-1-propanol (AMP) buffer reagent system wit...
متن کاملRapid method for the quantitative determination of serum alkaline phosphatase.
S ERUM ALKALINE PHOSPHATASE ACTIVITY is the enzyme analysis most frequently made in clinical laboratories. It has long been a diagnostic tool and therapeutic index in both liver and osseous disease. Its usefulness could be expanded by a method which would measure alkaline phosphatase activity rapidly, accurately, and with a minimum of technical manipulation. Ideally, the substrate for such a me...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1986
ISSN: 0021-9746
DOI: 10.1136/jcp.39.9.1031