1,5 anhydroglucitol

1,5 anhydroglucitol

(an″hī″drō-gloo′sĭ-tol″) [ ¹an- + hydro- + gluco- + -itol],

1,5 AG

A polyol in the diet, whose concentration in the blood falls when blood glucose levels rise above 180 mg/dL. Monitoring levels of 1,5-AG helps identify patients with normal hemoglobin A1c levels who nonetheless have very elevated blood sugar levels after meals.
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They found 10 potential biomarkers including 1,5 Anhydroglucitol (The most important metabolite), [alpha]-Hydroxyvaleric acid, Galactose glucitol, Phenylalanine, Glutamic acid, L-Isoleucine, Phenylpropionic acid, N-acetylglycine, Ornithine and Lysine, and six metabolic pathways (Alanine, Aspartate and Glutamate metabolism, Arginine and Proline metabolism, Lysine degradation, Phenylalanine metabolism, Aminoacyl-tRNA biosynthesis, D-Glutamine and D-Glutamate metabolism) in plasma.
In addition to HbA1c, two other long-term indices of glycemia--fructosamine and 1,5 anhydroglucitol (1,5-AG)--are available but less widely used.