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Asparate Aminotransferase (AST) assay

Product Method Size Catalog Price Quantity
Asparate Aminotransferase (AST) assay IFCC 6 x 20ml AS3876 $126.67
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  • Format
    Lyophilised
  • Assay Range
    7.2 - 625 U/L
  • Working Stability 2-8 °C
    Stable to expiry
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Intended Use

An AST test system is a device intended for the quantitative in vitro determination of aspartate aminotransferase (AST) activity in serum and plasma. This product is suitable for use on RX series instruments which includes the RX daytona and the RX imola.

Clinical Significance

The aminotransferases are a group of enzymes that catalyse the inter conversions of amino acids and -oxoacids by transfer of amino groups. AST (aspartate aminotransferase or glutamate oxaloacetate transaminase) has been found in the cytoplasm and the mitochondria of cells that have been studied. In cases of mild tissue damage eg liver the predominant form of serum AST is that from the cytoplasm, with a smaller amount coming from the mitochondria. Severe tissue damage will result in more mitochondrial enzyme being released. Elevated levels of AST can signal myocardial infarction, hepatic disease, muscular dystrophy and organ damage.

Although heart muscle is found to have the most activity of the enzyme, significant activity has also been seen in the brain, liver, gastric mucosa, adipose tissue and kidneys of humans.

UV Method

This is an optimized standard method according to the concentrations recommended by the IFCC.

Principle

a-oxoglutarate reacts with L-aspartate in the presence of AST to form L-glutamate plus oxaloacetate. The indicator reaction utilizes the oxaloacetate for a kinetic determination of NADH consumption.

Available Applications

RX series instruments, including:

RX daytona

RX imola

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