Effects of genetic and diet-induced obesity on lipid metabolism |
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Authors: | Libinaki R Heffernan M Jiang W J Ogru E Ignjatovic V Gianello R Trickey L Taylor M Ng F |
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Institution: | Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia. |
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Abstract: | C57BL/6J obese (ob/ob) and lean mice fed ad libitum on a normal mouse chow diet (Normal), were compared with lean mice of the same age and strain fed ad libitum on a high-fat diet, consisting of the Normal diet with the addition of beef lard (Lard), from age 3 months for 34 days. The lard-fed mice were seen to have significantly higher (P<0.05) body weight in this 34-day period than that of the other two groups fed on the Normal diet. Epididymal fat depot and adipocyte cell size were significantly larger (P<0.05) in the Lard-fed lean mice and in the obese (ob/ob) mice than were those of the Normal-fed lean mice. Dietary Lard intake did not significantly affect concentrations of plasma triglyceride although those of plasma cholesterol were significantly increased (P<0.05). The development of obesity in these Lard-fed mice appeared to be accelerated and significant. |
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