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Experimental model of type 2 diabetes induced by fat diet consumption and low dose of streptozotocin in C57BL/6J mice


Studies with murine model have been extensively used as a tool in the understanding of mechanisms involved in diseases such as diabetes (Correia-Santos et al, 2012; Chorilli, 2007). Diabetes is characterized as a heterogeneous group of metabolic disorders having in common hyperglycemia, which may result from defects in insulin action or secretion or even in both. The same can be divided into four groups: type 1 diabetes mellitus (DM1), type 2 diabetes mellitus (DM2), gestational diabetes mellitus, and other specific types of diabetes (SBD, 2014). It is known that DM2 is associated with overweight and obesity, physical inactivity, metabolic syndrome, diet high in saturated and animal fat, among others. (Paulweber et al., 2010).


To evaluate the effectiveness of induction of type 2 diabetes mellitus Protocol based on a high fat diet associated with low doses of streptozotocin in C57BL/6J mice that simulates the characteristics observed in humans and makes possible subsequent therapeutic propositions and to analyze the consumption of this diet.


83 C57BL/6J mice, with 28 days in the post-weaning period were used. The control animals were divided into experimental groups that received the standard diet for laboratory animals and fat diet composed of a mixture of standard diet, 10% of butter, 1% cholesterol and 0.1% cholic acid for 5 weeks, receiving a low dose of streptozotocin (35mg/kg) at weeks 4 is 5. Both groups (healthy and induced) received the equivalent of 144,3g feed per cage from this point. The animals received food and water ad libitum and such consumption was measured, as well as their weights. Their blood glucose levels were measured on days 0, 35 and 42.


At the end of five weeks, only 11.68% of induced mice showed corresponding glucose to diabetes. Animals' induction group had a weekly average of 100,41g of feed per cage, making 20,35g of feed/mouse. On the other hand, the control group had an average of feed for cage of 115g, and 19,3g of feed consumption/mouse over this period. As for weight, the healthy group increased on average by 8.11% and induced by 9.03%.


The animals fed the high fat diet had higher food intake when compared to the control group animals. However, this model for induction of diabetes has proven inefficient.

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Correspondence to Mariana de Freitas Moreira.

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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.

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de Freitas Moreira, M., do Vale Canabrava, N., Lira, S.M. et al. Experimental model of type 2 diabetes induced by fat diet consumption and low dose of streptozotocin in C57BL/6J mice. Diabetol Metab Syndr 7 (Suppl 1), A160 (2015).

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