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Biosystems Alkaline Phosphatase

Biosystems Alkaline Phosphatase

Biosystems Alkaline Phosphatase PRINCIPLE OF THE METHOD
Alkaline phosphatase (ALP) catalyzes in alkaline medium the transfer of the phosphate group
from 4-nitrophenylphosphate to 2-amino-2-methyl-1-propanol (AMP), liberating 4-nitrophenol.
The catalytic concentration is determined from the rate of 4-nitrophenol formation, measured at
405 nm1

 

STORAGE
Store at 2-8ºC.
Reagents are stable until the expiry date shown on the label when stored tightly closed and if
contaminations are prevented during their use.
Indications of deterioration:
Reagents: Presence of particulate material, turbidity, absorbance of the blank over 1.200 at
405 nm 1 cm cuvette.

DIAGNOSTIC CHARACTERISTICS
Alkaline phosphatase catalyzes the hydrolysis of organic phosphate monoesters at alkaline pH.
The enzyme is present in practically all tissues of the body, especially at or in the cell
membranes, and it occurs at particularly high concentrations in placenta, intestinal epithelium,
kidney tubules, osteoblasts and liver.
The form present in the sera of normal adults originates mainly in the liver and bone.
Elevated serum ALP is found in patients with bone disease associated with increased
osteoblastic activity (Paget’s disease, primary and secondary hyperparathyroidism, bone
tumors, rickets, osteomalacia, bone fractures) and also in patients with hepatobiliary disease
(obstructive jaundice, hepatitis, hepatotoxicity caused by drugs, liver cancer). Physiological
changes, such as bone growth and pregnancy, may cause increases in ALP levels4,5
Clinical diagnosis should not be made

 

Brand: Biosystems

Biosystems Alkaline Phosphatase