aspartate transaminase
aspartate aminotransferase, , AST (abbreviation) , AAT (abbreviation) , AspAT (abbreviation) , ASAT (abbreviation) , also: serum glutamic oxaloacetic transaminase , SGOT (abbreviation)

Two patients reported one or more drug-related laboratory adverse events, including one patient each with hypokalemia and increased serum aspartate transaminase.

Most have slightly abnormal liver function tests such as a raised aspartate transaminase, alanine transaminase and bilirubin level.

X-ray crystallography studies have been performed to determine the structure of aspartate transaminase from various sources, including chicken mitochondria, pig heart cytosol, and E. coli.

Aspartate transaminase (aka SGOT), an enzyme associated with liver parenchymal cells.

Aspartate transaminase catalyzes the interconversion of aspartate and α-ketoglutarate to oxaloacetate and glutamate.

This is evidenced by enzymatic changes, which include elevation in the levels of serum alanine transaminase, aspartate transaminase and aspartic acid.

The two transaminases commonly measured are alanine transaminase (ALT) and aspartate transaminase (AST).

Elevation of alanine transaminase (ALT) and aspartate transaminase (AST) has been described in a few cases.

Enzymes utilizing such cofactors include the PLP-dependent enzyme aspartate transaminase and the TPP-dependent enzyme pyruvate dehydrogenase.

Biochemical investigations include serum creatine kinase (typically increased 10 fold) with lesser elevations of the serum aldolase, aspartate transaminase, alanine transaminase and lactic dehydrogenase.

In a similar mechanism of aspartate transaminase, the lysine that forms the initial imine to PLP later acts as the base that attacks the tyrosine in transimination.

Platelet count, aspartate transaminase, alanine transaminase, and haptoglobin are usually unaffected and may be used to distinguish mirror syndrome from HELLP syndrome.

Twenty two tests were carried out on mutant mice and two significant abnormalities were observed: homozygous mutants were subviable and females also had decreased circulating aspartate transaminase levels.

In medicine, the presence of elevated transaminases, commonly the transaminases alanine transaminase (ALT) and aspartate transaminase (AST), may be an indicator of liver damage.

In the early stages, however, pressure on the liver cells may be the main feature and the tests will resemble those in hepatitis, with elevations in alanine transaminase and aspartate transaminase.

We hypothesized that elevation in markers of oxidative stress would be associated with increased liver injury, as measured by serum alanine transaminase (ALT) and aspartate transaminase (AST) levels.

LFT's, serum proteins, serum albumin, serum globulin, A/G Ratio, alanine transaminase, aspartate transaminase, prothrombin time, partial thromboplastin time, platelet count.

Aspartate transaminase, as with all transaminases, operates via dual substrate recognition; that is, it is able to recognize and selectively bind two amino acids (Asp and Glu) with different side-chains.

The increasing liver damage also alters biochemical markers of liver function; International normalized ratio (INR) and the hepatic transaminases alanine transaminase and aspartate transaminase rise to abnormal levels.

The serum alanine transaminase level usually is greater than the aspartate transaminase level in the nonalcoholic variant and the opposite in alcoholic FLD (AST:ALT more than 2:1).

Pre-treatment with AP-Q has an effect on hepatocytes in CCl-induced acute liver injury, decreasing the activity of aspartate transaminase (AST) and alanine transaminase (ALT) in the liver.

These instruments typically determine levels of albumin, alkaline phosphatase, aspartate transaminase (AST), blood urea nitrogen, bilirubin, calcium, cholesterol, creatinine, glucose, inorganic phosphorus, proteins, and uric acid in blood serum or other bodily samples.

Recommended laboratory investigations to find the underlying cause of gynecomastia include tests for aspartate transaminase and alanine transaminase to rule out liver pathology, serum creatinine to evaluate if kidney damage is present, and thyroid-stimulating hormone levels to evaluate for hyperthyroidism.