Enzymatic determination of D-mannose in serum.
- 1 February 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Clinical Chemistry
- Vol. 30 (2) , 293-294
- https://doi.org/10.1093/clinchem/30.2.293
Abstract
A new and simple enzymatic assay for measuring D-mannose in serum is described. Endogenous glucose is eliminated from serum by use of glucose oxidase (EC 1.1.3.4) and catalase (EC 1.11.1.6). D-Mannose concentration is calculated from the increase in NADH formation after mannosephosphate isomerase (EC 5.3.1.8) is added. This increase is a result of coupling the following series of enzymes: hexokinase (EC 2.7.1.1), glucosephosphate isomerase (EC 5.3.1.9), and glucose-6-phosphate dehydrogenase (EC 1.1.1.49, NAD+-dependent). The study included subjects who were healthy volunteers and patients with suspected or proven fungal infections.Keywords
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