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| Author(s): |
Francisco Leonardo Tôrres Leal
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Ciências Biomédicas (ICB/SDI) |
| Defense date: | 2012-08-03 |
| Examining board members: |
Fabio Bessa Lima;
Miriam Helena Fonseca Alaniz;
Gabriel Forato Anhê;
José Donato Júnior;
Silvana Auxiliadora Bordin da Silva
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| Advisor: | Fabio Bessa Lima |
| Abstract | |
Investigate the effects of leucine consumption on adiposity and functionality of white adipose tissue in rats fed with control or hyperlipidic (HL) diets. After obesity characterization, animals were submitted to 6 weeks of leucine supplementation. At the end, we could observe that leucine exerted distinct effects, depending on the metabolic condition in several parameters related to adiposity. These responses were more pronounced in animalsfed with HL diet and supplemented with leucine, mainly due to higher adipose mass in different fat pads, larger adipocytes in subcutaneous fat (SC), increase of de novo fatty acids synthesis, as well as, an increase in fatty acids incorporation in SC adipocytes. Furthermore, we observed effects of leucine supplementation on PPAR<font face=\"symbol\">g, GPAT, FABP and PEPCK gene expression in SC fat. Thus, it was demonstrated that leucine supplementation, when used in an obesity and insulin resistance model, favors the increase of adipose mass in SC fat via PPAR<font face=\"symbol\">g. (AU) | |