Onset of hyperglycemia occurs between 10-12 on a 10-11% fat (wt/wt) chow diet with greater than 85% diabetic by 18 weeks. Males exhibit increased serum triglycerides, moderate to severe liver steatosis and pancreatic islet atrophy similar to NZO/HlLt males. Serum insulin and leptin values are significantly lower than in NZO/HlLt, and are only moderately elevated above those recorded in NON/ShiLtJ males. Unlike the very obese NZO/HlLt mice, NONcNZO10/LtJ mice do not exhibit hyperphagia or hypercorticism and are much easier to breed. Although NONcNZO10/LtJ males develop only a moderate level of obesity compared to NZO/HlLt males, the interaction with known diabetogenic QTL from the NON/ShiLtJ strain produce an earlier onset and higher prevalence of chronic hyperglycemia than observed in NZO/HlLt males.NONcNZO10/LtJ is differentially sensitive to adverse hepatic side effects of thiazolidinediones and may be useful for pharmac ogenetic analysis. This strain represents a model of polygenic obesity and obesity-induced diabetes (diabesity). Note that the diabetes phenotype originally characterized by Dr. Leiter in his research vivarium was performed with mice fed a 6% wt/wt diet. After the strain was rederived it was experimentally determined that it is essential to feed the mice a higher fat diet to force penetrance of the diabetes phenotype.

Removal of this mouse colony is imminent. If live mice are needed for your studies, it is advised that they be ordered immediately. After removal, the mice will be available from a cryorecovery. NONcNZO10/LtJ is a recombinant congenic strain developed at The Jackson Laboratory to model human obesity-induced Type 2 diabetes and Metabolic Syndrome. Type 2 diabetes in males of this strain results from polygenic interactions producing a moderate obesity rather than the massive obesity elicited by mutations in the leptin/leptin receptor axis. Unlike mice with monogenic obesity syndromes, NONcNZO10/LtJ males do not exhibit hypercorticism, are not hyperphagic, and show no obvious thermoregulatory defects. Male mice weaned onto LabDiet&reg; 5K20 (a chow diet containing 10-11% fat by weight) develop visceral obesity, maturity-onset hyperglycemia, dyslipidemia, moderate liver steatosis, and pancreatic islet atrophy.