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Induction of lipid catabolism and mitochondrial biogenesis in white adipose tissue as therapeutic target for obesity and associated metabolic disorders
Adamcová, Kateřina ; Janovská, Petra (advisor) ; Tencerová, Michaela (referee) ; Cahová, Monika (referee)
Adipose tissue is not only crucial in the storage of excessive fat and its release but also plays important role in the secretion of endo/para- and autocrine factors, thus influencing energy metabolism on the whole body level. The incapability of adipose tissue to meet its responsibilities leads to whole-body metabolic problems resulting in type 2 diabetes, storing of fat in the liver, coronary disease, and other diseases. How to prevent development of obesity and its consequences and/or completely reverse it, is a subject of great scientific interest. Activation of brown adipose tissue (BAT) and brite cells via induction of uncoupling protein 1 (UCP1) and/or stimulation of UCP1-independent energy-dissipating metabolic pathways such as futile cycles in white adipose tissue may be a promising path to fulfill this goal. This thesis is based on results from experiments with two cold-exposed inbred murine strains differing in the propensity to obesity and murine experiments with diet-induced obesity prevented by n-3 polyunsaturated fatty acids (PUFA). Mice resistant to diet-induced obesity (A/J mice) showed higher induction of triacylglycerol (TAG)/fatty acid (FA) futile cycle in epididymal white adipose tissue by cold exposure in comparison to obesity-prone B6 mice. Interestingly, the level of both...

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