For the in vitro quantitative kinetic determination of Pancreatic Lipase in serum.
Serum pancreatic lipase acts on a natural type of substrate, 1,2-diglyceride to liberate 2-monoglyceride. The 2-monoglyceride is hydrolyzed by monoglyceride lipase (MGLP) to produce glycerol and fatty acid. Glycerol kinase (GK) then acts on the glycerol to produce glycerol-3-phosphate which is converted to dihydroxyacetone phosphate and hydrogen peroxide in a reaction catayzed by glycerol-3-phosphate oxidase (GPO). The hydrogen peroxide then reacts with 4-aminoantipyrine and N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-m-toluidine sodium salt (TOOS) in a reaction catalyzed by peroxidase (POD) to yield a quinone dye. The rate of increase in absorbance at 550nm is directly proportional to the Lipase activity of the sample.