We developed an assay for serum magnesium (Mg) by coupling phosphoglucomutase (EC 2.7.5.1) with glucose-6-phosphate dehydrogenase (EC 1.1.1.49). The kinetic generation of NADPH by the action of the above two enzymes upon glucose-l-phosphate (Gl-P) and glucoso-l,6-diphosphate (G-1,6-P) was proportion
Clinical application of the serum 1,5-anhydroglucitol assay method using glucose 3-dehydrogenase
✍ Scribed by Tetsuro Hamafuji; Wakako Tsugawa; Koji Sode
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 115 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0887-8013
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✦ Synopsis
Abstract
We attempted to develop a novel serum 1,5‐anhydroglucitol (1,5‐AG) assay kit using glucose 3‐dehydrogenase (G3DH) from Halomonas sp. α‐15 strain. The major advantages of this method are that the 1,5‐AG detection requires a very small amount of G3DH, and the enzyme catalyzes a simple reaction. The analytical performances were acceptable for clinical use operated with a clinical automatic analyzer. The correlation with a commercial assay kit against sera of healthy volunteers was y=0.975__x__+0.008, r=0.993, Sy∣x=1.32 μg/mL. However, sham‐negative specimens were observed in the validation of this method using specimens from hospital patients. J. Clin. Lab. Anal. 16:299–303, 2002. © 2002 Wiley‐Liss, Inc.
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