3 years ago

Continuous Glucose Monitoring in female NOD Mice Reveals Daily Rhythms and a Negative Correlation with Body Temperature.

Sukoff Rizzo SJ, Lyons BL, Savage HS, Korstanje R, Kane KG, Ryan JL
Previous studies with continuous glucose monitoring in mice have been limited to several days or weeks, with the mouse's physical attachment to the equipment affecting behavior and measurements. In the current study, we measured blood glucose and body temperature at 10-second intervals for 12 weeks in a cohort of NOD/ShiLtJ female mice using wireless telemetry. This allowed us to obtain a high-resolution profile of the circadian rhythm of these two parameters and the onset of hyperglycemic development in real time. The most striking observations were the elevated nocturnal concentrations of glucose into the diabetic range days before elevations in diurnal glucose (when glucose concentrations are historically measured) and the strong, negative correlation between elevated blood glucose concentrations and body temperature with a steady decline of the body temperature with diabetes development. Taken together, this technological advancement provides improved resolution in the study of the disease trajectory of diabetes in mouse models, including relevant translatability to the current technologies of continuous glucose monitoring now regularly used in patients.

Publisher URL: https://www.ncbi.nlm.nih.gov/pubmed/28633442

DOI: PubMed:28633442

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