“Western” style diets are fed to genetically-modified cardiovascular models, such as Apoe and Ldlr deficient mice, to accelerate and enhance hypercholesterolemia and plaque formation and to elicit phenotypes commonly associated with metabolic syndrome. Within the atherogenic literature, a “Western” diet typically is described as a purified rodent diet with 20-23% milkfat/butterfat, 0.2% total cholesterol, and 34% sucrose by weight. TD.88137 is an example of a “Western” style diet that was originally designed to characterize and enhance atherosclerosis development in a newly generated Apoe-deficient mouse model. Contact us for more information about “Western” style diets, modifications, or possible control diets.
TD.88137 Adjusted calories diet (42% from fat, 0.2% total cholesterol)
TD.10885 45% fat Kcal diet (0.2% total cholesterol)
Accelerated hypercholesterolemia and plaque formation in genetically-modified models, such as Apoe and Ldlr deficient mice.
Used for diet-induced obesity in a variety of rodent models.
Key dietary features:
High Fat Diet (20-23% by weight; 40 – 45% kcal from fat)
Saturated fatty acids (SFA >60% of total fatty acids)
Sucrose (34% by weight)
Cholesterol (0.2% total)
Febbraio, M., et al., Targeted disruption of the class B scavenger receptor CD36 protects against atherosclerotic lesion development in mice. J Clin Invest, 2000. 105(8): p. 1049-56.
Huszar, D., et al., Increased LDL cholesterol and atherosclerosis in LDL receptor-deficient mice with attenuated expression of scavenger receptor B1. Arterioscler Thromb Vasc Biol, 2000. 20(4): p. 1068-73.
Nakashima, Y., et al., ApoE-deficient mice develop lesions of all phases of atherosclerosis throughout the arterial tree. Arterioscler Thromb, 1994. 14(1): p. 133-40.
Nakashima, Y., et al., Upregulation of VCAM-1 and ICAM-1 at atherosclerosis-prone sites on the endothelium in the ApoE-deficient mouse. Arterioscler Thromb Vasc Biol, 1998. 18(5): p. 842-51.
Plump, A.S., et al., Severe hypercholesterolemia and atherosclerosis in apolipoprotein E-deficient mice created by homologous recombination in ES cells. Cell, 1992. 71(2): p. 343-53.
Towler, D.A., et al., Diet-induced diabetes activates an osteogenic gene regulatory program in the aortas of low density lipoprotein receptor-deficient mice. J Biol Chem, 1998. 273(46): p. 30427-34.
Tsuchiya, K., et al., FoxOs integrate pleiotropic actions of insulin in vascular endothelium to protect mice from atherosclerosis. Cell Metab, 2012. 15(3): p. 372-81.
Standard, natural ingredient diets with cholesterol added are fed to induce hypercholesterolemia. Various levels of cholesterol, fat, and/or bile salts can be added to one of the numerous standard rodent diets stocked by Envigo Teklad. For many applications, adding these components to Envigo’s minimal-to-moderate phytoestrogen global rodent diets is recommended. Our minimal phytoestrogen global rodent diets are soybean meal free, limiting the effect of phytoestrogens on your research outcomes. Soybean meal, a common dietary source of phytoestrogens, has been shown to decrease aortic fatty streak development and modify plasma cholesterol, which may reduce the risk of developing atherosclerosis. Limiting dietary soybean meal may reduce confounding variables within your dietary-induced atherosclerosis model. Contact a nutritionist to discuss additional diet options.
Examples of minimal and moderate phytoestrogen rodent diets with added cholesterol:
The sodium content of natural ingredients such as corn, wheat, and soybean meal is low. Thus, these ingredients can be used to create a base diet that is sodium deficient. To this base diet, various amounts of sodium chloride salt (NaCl) can be added, and other ingredients adjusted slightly to maintain a relatively constant nutrient profile (with the exception of sodium and chloride). Below are examples from a popular series of adjusted NaCl diets. Contact us for more information.
* When added to natural ingredient diets, these water soluble food dyes offer a slight color tint. More intense color can be achieved at higher inclusion rates.
Ask a nutritionist about additional salt concentrations or color options.
These diets are grain-based, with no animal derived ingredients, and have a background sodium content of approx. 0.01-0.02% and a background chloride content of approx. 0.06-0.07%. The selected nutrient content of the diets are as follows: approximately 19% protein, 5% fat, 3% crude fiber, 0.86% Ca, 0.64% P, 0.72% K, and 0.15% Mg.
NaCl adjusted diets are often fed to dahl salt-sensitive/resistant (rapp) inbred rats. These rats are maintained on Teklad traditional diet 7034 (0.12% NaCl) within maximum security production facilities.