Metabolic disease models – Diet-induced Obesity DIO Mouse Model
Study the efficacy of your novel anti-obesity therapeutics using the DIO mouse model
DIO Mouse Model Characteristics
The diet-induced obesity DIO mouse model represents a physiological approach to studying efficacy of novel compounds against obesity and related metabolic disorders in a preclinical research setting. Maintaining C57BL/6N mice on a Western-style high-fat diet (HFD) comprising 60% fat content, the DIO mouse model develops many hallmarks of metabolic disease such as obesity, insulin sensitivity, elevated fasting blood glucose and insulin resistance. Additionally, using various behavioral phenotyping protocols, at InnoSer we have demonstrated that HF-fed mice show substantial reduction in general activity, nest building capacity as well as memory performance (e.g., during behavioral tests such as Morris Water Maze [MWM]).
Depending on study timelines, this model can be adapted to study varying stages of metabolic dysfunction, including pre-diabetes, type 2 diabetes mellitus (T2DM) and more severe insulin resistance in the setting of Western diet and obesity. Unlike genetic metabolic models such as the db/db mouse model, the DIO model reflects lifestyle-induced obesity seen in humans, providing you with a highly translational mouse model to study efficacy of novel anti-obesity strategies. Combined with InnoSer’s expertise in behavioral neuroscience studies, the DIO mouse model is also suitable to evaluate efficacy of compounds against metabolic disease-associated cognitive dysfunctions which is currently an emerging area of research within the metabolic disease field. Contact us today to discuss how this model can support your research objectives in preclinical metabolic health research.
✓ Mouse model of physiological induction of obesity
✓ Mice show key hallmarks of metabolic disease (obesity, insulin resistance, hyperglycemia)
As a preclinical metabolic CRO, InnoSer’s team delivers you with a range of high-quality in vivo models for key metabolic diseases with different associated risk factors and aetiologias. This selection allows you to test therapeutic efficacy to prevent or reverse insulin resistance, pre-diabetes, obesity type 2 diabetes mellitus (T2DM), and/or MAFLD/MASH (NASH/NAFLD). To study metabolic disease-associated cardiovascular complications and cardiac dysfunction, InnoSer recommends the use of the Western diet-induced diabetic cardiomyopathy rat model. Reach out to our team to discuss the most suitable model to answer your research questions.
DIO Mouse Model Sample Data

Persistent hypercaloric intake drives body weight increases DIO mice
Pre-fed male C57BL/6JRj mice on HFD show progressive body weight gain from 16 to 27 weeks of age. Body weight was monitored throughout the study in pre-fed male DIO and age-matched male control mice. DIO mice had been maintained on HFD (60% kcal from fat) by the supplier from 6 weeks of age and continued on the HFD throughout the study at InnoSer. Data shown as M±SEM.

Persistent hypercaloric intake drives impaired glucose tolerance at 16 weeks of age in DIO mice
Pre-fed male C57BL/6JRj mice on HFD show impaired glucose tolerance following prolonged hypercaloric feeding. (A) Glucose tolerance curve (B) Area under the curve (AUC). Glucose tolerance was assessed by oral glucose tolerance testing (OGTT) in male mice on HFD and age-matched control mice at 16 weeks of age. Mice were fasted for four hours before receiving an oral glucose bolus (2 g/kg), and blood glucose levels were measured at baseline and 15, 30, 60, and 120 minutes post-administration. Data shown as M±SEM.

Persistent hypercaloric intake drives insulin resistance at 19 weeks of age in DIO mice
Elevated fasted insulin levels in pre-fed male C57BL/6JRj mice on HFD before and following glucose administration, consistent with a compensatory insulin response and an insulin-resistant metabolic phenotype. Animals were fasted for four hours, and insulin levels were assessed in pre-fed male DIO and age-matched controls at 19 weeks of age at baseline (30 minutes before OGTT start) and 15 minutes after glucose administration via submandibular puncture. Insulin concentrations were determined by ELISA (Mouse Insulin ELISA, Mercodia, 10-1247). Data shown as M±SEM.
DIO Mouse Model Readouts
Die Menschen hinter Ihrer Forschung
Dr. Yanick Fanton, wissenschaftlicher Leiter
Als Chief Science Officer bei InnoSer ist Yanick für alle Kundenstudien bei InnoSer verantwortlich und kümmert sich um die wissenschaftliche und technische Koordination.
Lisa Claes, Study Director, Cardiometabolic Studies
Lisa oversees the scientific execution and coordination of cardiometabolic studies at InnoSer, ensuring high-quality study delivery
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AAALAC-Akkreditierung
InnoSer hat die AAALAC-Akkreditierung erhalten und damit sein Engagement für einen verantwortungsvollen Umgang mit Tieren unter Beweis gestellt. AAALAC International ist eine gemeinnützige Organisation, die sich durch freiwillige Akkreditierungs- und Bewertungsprogramme für den artgerechten Umgang mit Tieren in der Wissenschaft einsetzt. Die Einrichtungen von InnoSer in den Niederlanden und Belgien sind seit 2016 bzw. 2020 AAALAC-akkreditiert. Weitere Informationen zum AAALAC-Akkreditierungsprogramm finden Sie hier.
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Tierschutz
Die 3Rs wirken sich auf alle Bereiche aus, von politischen und regulatorischen Veränderungen bis hin zur Entwicklung und Einführung neuer Technologien und Ansätze. Aus diesem Grund engagiert sich InnoSer kontinuierlich für diese Prozesse und überwacht sie. Die von uns umgesetzten Maßnahmen maximieren unsere Fähigkeit, den Einsatz von Tieren zu ersetzen, zu reduzieren und zu verfeinern, und unterstützen unser Bekenntnis zu diesen Grundsätzen in der Forschung und der Arzneimittelentwicklung.
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