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Provedor de dados: |
Biological Sciences
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País: |
Brazil
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Título: |
DHEA and non-alcoholic fat liver disease: increased gene expression of peroxisome proliferation-activated receptor γ (PPARγ) and fatty acid synthase (FAS)
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Autores: |
Almeida, Felipe Natali; Universidade Estadual de Maringá
Andrade, Maynara Lucca; Universidade de São Paulo
Moreira, Gabriela Virginia; Universidade de São Paulo
Camporez, João Paulo Gabriel; Universidade de São Paulo
Chimin, Patricia; Universidade de São Paulo
Carvalho, Carla Roberta de Oliveira; Universidade de São Paulo
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Data: |
2014-05-08
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Ano: |
2014
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Palavras-chave: |
Dehydroespiandrosterone
Hepatic steatosis
De novo lipogenesis
Hepatic insulin resistance
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Resumo: |
Dehydroespiandrosterone (DHEA) is associated with improvements in chronic degenerative diseases, including obesity, insulin resistance, and cardiovascular diseases. Nevertheless, it is observed an increase in its concentration in individuals with liver lipid infiltration, but it is not precise if this condition emerges as a cause or a consequence. In this way, we aimed to identify gene expression alterations in lipid and glucose liver metabolism markers, as well as oxidative stress markers. For this purpose, male Wistar rats, 12-14 months old were treated with subcutaneous injections of DHEA (only dose of 10 mg kg-1); and after 7 days, hepatic gene expression by PCR real time were performed for the following genes: G6Pase, PEPCK, FAS, PPARγ, malic enzyme, ChREBP, LXR, catalase, GPx, iNOS, NADPH oxidase subunits and PCNA. We observed a tendency of reduction in G6Pase gene expression in treated group (p = 0.08). In addition, it was identified an increase in liver PPARγ and FAS gene expressions, two markers of increased activity of lipogenic pathway. We also observed an increase in iNOS gene expression, a known inductor of systemic and hepatic insulin resistance. In conclusion, our data indicates that the treatment with DHEA can be associated with the development of liver lipid infiltration and hepatic insulin resistance.
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Tipo: |
Info:eu-repo/semantics/article
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Idioma: |
Inglês
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Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/19471
10.4025/actascibiolsci.v36i2.19471
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Editor: |
Universidade Estadual De Maringá
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Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/19471/pdf_13
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Formato: |
application/pdf
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Fonte: |
Acta Scientiarum. Biological Sciences; v. 36, n. 2 (2014); 223-229
Acta Scientiarum. Biological Sciences; v. 36, n. 2 (2014); 223-229
1807-863X
1679-9283
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Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Biological Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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