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- Title
Circulating 1,5-Anhydroglucitol as a Biomarker of ß-cell Mass Independent of a Diabetes Phenotype in Human Subjects.
- Authors
Jiménez-Sánchez, Cecilia; Mezza, Teresa; Sinturel, Flore; Lingzi Li; Di Giuseppe, Gianfranco; Quero, Giuseppe; Jornayvaz, François R.; Guessous, Idris; Dibner, Charna; Schrauwen, Patrick; Alfieri, Sergio; Giaccari, Andrea; Maechler, Pierre
- Abstract
Context. During an asymptomatic prediabetic state, the functional ß-cell mass decreases to a critical threshold, triggering diabetes and related symptoms. To date, there are no reliable readouts able to capture in vivo a potential drop of the ß-cell mass. Objective. Beside its use as a short-term marker of glycemic control, the deoxyhexose 1,5-anhydroglucitol was identified in rodents as a circulating biomarker of the functional ß-cell mass already in the asymptomatic prediabetic stage. The present study investigated the putative corresponding relevance of circulating 1,5-anhydroglucitol in different human cohorts. Methods. We analyzed clinical and blood parameters in patients with established type 2 diabetes and subjects considered at high risk of developing diabetes, as well as patients with no history of diabetes scheduled for pancreaticoduodenectomy. Results. Circulating 1,5-anhydroglucitol was reduced in type 2 diabetic patients, negatively correlating with fasting plasma glucose (P < 0.0001) and hemoglobin A1c (P < 0.0001). In healthy subjects, 1,5-AG levels positively correlated with body mass index (P = 0.004) and Homeostatic Model Assessment of Insulin Resistance %S (P < 0.03) and was particularly high in nondiabetic obese individuals, potentially accounting for compensatory ß-cell expansion. Patients with no history of diabetes undergoing pancreaticoduodenectomy exhibited a 50% reduction of circulating 1,5-anhydroglucitol levels following surgery leading to an acute loss of their ß-cell mass (P = 0.002), regardless their glucose tolerance status. Conclusion. In summary, plasma concentration of 1,5-anhydroglucitol follows the ß-cell mass and its noninvasive monitoring may alert about the loss of ß cells in subjects at risk for diabetes, an event that cannot be captured by other clinical parameters of glycemic control.
- Subjects
SORBITOL; BIOMARKERS; DIABETES; INSULIN resistance; BODY mass index
- Publication
Journal of Clinical Endocrinology & Metabolism, 2022, Vol 107, Issue 10, p2833
- ISSN
0021-972X
- Publication type
Article
- DOI
10.1210/clinem/dgac444