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C57Bl/6J female mice were monitored for body temperature and metabolic rate during the dark photoperiod without food, with the blue trace representing a fed mouse and the red trace a fasted mouse exhibiting torpor (Hrvatin et al., Nature 2020). ​

Wheel-running activity was continuously recorded over several days, showing hourly running patterns and cumulative wheel counts across alternating light and dark cycles. ​

Physical activity was monitored by infrared beam breaks in the Promethion indirect calorimeter for one hour in either a mouse with ad libitum access to food or shortly after food removal. (Rubio et al Mol Metabolism 2023)

Alexander S. Banks Beth Israel Deaconess Medical Center Division Of Endocrinology, Diabetes, and Metabolism Center for Life Sciences, 7th floor 330 Brookline Ave Boston, MA 02115 Email: asbanks [at] bidmc.harvard.edu

Indirect calorimetry data for one mouse implanted with a glucose and body temperature telemetry probe in the Promethion indirect calorimeter (Rubio et al Mol Metabolism 2023)

Sable Systems Promethion Indirect Calorimeter (32 cages) Food intake Water intake In-cage body mass measurement Physical activity (infrared beam breaks) Energy expenditure Oxygen consumption (VO2) Carbon dioxide production (VCO2) Respiratory exchange ratio – an indicator of carbohydrate or fat...

Schedule and On-Demand Recordings To join a Radiology Grand Rounds lecture virtually or view previous on-demand recordings, log onto the BIDMC Radiology Portal here . 2025-2026 Grand Rounds Schedule Date Speaker Topic 9/12/25 Stephanie Nougaret, MD, PhD, Professor/Radiologist, Montpellier Cancer...