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5' Nucleotidase (5NT) is a glycoprotein found throughout the body, in the cytoplasmic membrane, catalyzing the conversion to inorganic phosphates from nucleoside-5-phosphate. Its level is raised in conditions such as obstructive jaundice, parenchymal liver disease, liver metastases, and bone disease. [6]
Pregnancy has been found to increase levels of cortisol in the body. In particular, breast-feeding has been found to decrease levels of cortisol in the short-term even if a mother is exposed to a psychosocial stressor. [20] Nicotine is known to increase levels of cortisol in the body since it stimulates the HPA axis. After at least two ...
Alanine transaminase (ALT), also known as alanine aminotransferase (ALT or ALAT), formerly serum glutamate-pyruvate transaminase (GPT) or serum glutamic-pyruvic transaminase (SGPT), is a transaminase enzyme (EC 2.6.1.2) that was first characterized in the mid-1950s by Arthur Karmen and colleagues. [1]
Plasma renin activity (PRA), also known as the renin (active) assay or random plasma renin, is a measure of the activity of the plasma enzyme renin, which plays a major role in the body's regulation of blood pressure, thirst, and urine output. Measure of direct renin concentration (DRC) is technically more demanding, and hence PRA is used instead.
Butyrylcholinesterase (HGNC symbol BCHE; EC 3.1.1.8), also known as BChE, BuChE, BuChase, pseudocholinesterase, or plasma (cholin)esterase, [5] is a nonspecific cholinesterase enzyme that hydrolyses many different choline-based esters. In humans, it is made in the liver, found mainly in blood plasma, and encoded by the BCHE gene. [6]
This enzyme allows the body to use and to recycle the B vitamin biotin, sometimes called vitamin H. Biotinidase extracts biotin from food because the body needs biotin in its free, unattached form. This enzyme also recycles biotin from enzymes in the body that use it as a helper component in order to function. These enzymes, known as ...
Enzyme multiplied immunoassay technique (EMIT) is a common method for qualitative and quantitative determination of therapeutic and recreational drugs and certain proteins in serum and urine. [ 1 ] It is an immunoassay in which a drug or metabolite in the sample competes with a drug/metabolite labelled with an enzyme, to bind to an antibody.
The cloned enzyme donor immunoassay (CEDIA) involves genetically engineering an enzyme (e.g., beta-galactosidase) into two inactive fragments: a small enzyme donor (ED) conjugated with the drug analog, and a larger enzyme acceptor (EA). When the two fragments associate, the full enzyme converts a substrate into a cleaved colored product.