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Male C57Bl/6J mice housed at thermoneutrality were administered the β-adrenergic agonist CL 316,243, and changes in oxygen consumption were continuously measured. ​

The following are examples of experiments that our core team has performed: 1. Thermogenesis: cold temperature challenge 2. Thermogenesis: beta-adrenergic agonist activation of mice housed at thermoneutral temperatures 3. Pharmacologic induction of metabolic rate (T3) 4. Diet-induced obesity 5...

Beth Israel Deaconess Medical Center and Harvard Medical School The home of CalR This is the website for the Energy Balance Core at BIDMC and Harvard Medical School, a facility designed for the measurement of energy intake, nutritional status, and energy expenditure in experimental mice. This...

In vivo stable isotope tracing with U-¹³C₆ D-mannitol and U-¹³C₆ D-glucose was conducted to enable ¹³CO₂ monitoring in the Promethion indirect calorimeter, with data plotted using CalR for conventional (blue) and commensal-depleted (red) mice (Vieira et al., in press).

Type 2 diabetes is one of obesity’s most tightly linked comorbidities, and its prevalence is rising in parallel with the global obesity epidemic. Uncontrolled obesity often leads to insulin resistance, beta cell failure, and hyperglycemia. Although effective glucose-lowering agents, almost all...

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...