BACKGROUND Despite ongoing findings on the relationship between elevated levels of alanine and aspartate aminotransferases (ALT and AST) and metabolic syndrome (MetS), this association in diabetic patients without a known cause for liver enzymes elevation other than diabetes, per se, remains unclear. In this study, we aimed to assess the relationship between circulating liver enzymes and MetS i...

The three-dimensional structure of the pyridoxal 5'-phosphate (PLP)-dependent L-threonine-O-3-phosphate decarboxylase (CobD) from Salmonella enterica is described here. This enzyme is responsible for synthesizing (R)-1-amino-2-propanol phosphate which is the precursor for the linkage between the nucleotide loop and the corrin ring in cobalamin. The molecule is a molecular dimer where each subun...

Organelles in spinach leaves were isolated in sucrose gradients by isopycnic centrifugation. The peroxisomal fraction was the only cellular site for two different and irreversible aminotransferases which utilized glyoxylate as the amino acceptor in the formation of glycine. These were a serine:glyoxylate aminotransferase with a specific activity of 1.54 pmoles X min-1 X mg-1 peroxisomal protein...

We determined transaminases in human blood serum with an amperometric glutamate biosensor. The probe was a hydrogen peroxide sensor assembled with appropriate selective membranes to enhance the probe specificity and lifetime. Calibration curves of glutamate were linear in the range 1-1000 mumol/L, with a response time of < 1 min. This probe was subsequently applied to the measurement of activit...

The present study evaluates the insecticidal activity of two essential Oil (EOs) mint (Mentha arvensis), and ajwain (Carum capyicum) against pulse beetle (Callosobruchus chinensis) (L). Contact toxicities these were evaluated using parameters lifecycle like total development period, numbers eggs laid, adult emergence longevity. Along with detoxification enzyme inhibition activities acetyl choli...

In the RA-1000, a random-access discrete analyzer, an inert fluorocarbon fluid is used to prevent interaction and carryover. Production-model instruments were evaluated in two laboratories with respect to determination of glucose, creatinine, total protein, inorganic phosphorus, cholesterol, alkaline phosphatase, lactate dehydrogenase, creatine kinase, gamma-glutamyltransferase, and aspartate a...

Little is known about control of expression of basal levels of the aspartate aminotransferases which are ubiquitous 'house keeping' enzymes in vertebrates. We have measured both mRNA and activity levels for both isoenzymes in various rat tissues as a function of age. Patterns of mRNA expression for the two isoenzymes were similar in a particular tissue about differed widely between tissues. Sur...