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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Efeito de um agonista dos receptores ativados por proliferadores de peroxissomo gama (PPARγ) sobre os efeitos do ácido linoleico conjugado (CLA, trans-10, Cis-12 e cis-9, trans-11) na transcrição de genes lipogênicos em explantes mamários de ovelhas lactantes / Effect of as activated agonist receptor by proliferators of gama peroxisome about the effects of linoleic acid on lipogenic genes in mammary explants of lactaing sleeps

Brogin Junior, Wagner 22 February 2017 (has links)
Submitted by Claudia Rocha (claudia.rocha@udesc.br) on 2018-03-16T13:45:25Z No. of bitstreams: 1 PGCA17MA219.pdf: 853811 bytes, checksum: 5ed849be56df67865d9463e92b006618 (MD5) / Made available in DSpace on 2018-03-16T13:45:25Z (GMT). No. of bitstreams: 1 PGCA17MA219.pdf: 853811 bytes, checksum: 5ed849be56df67865d9463e92b006618 (MD5) Previous issue date: 2017-02-22 / Capes / The search for optimization of production systems with animals leads to besides the animal fator, and show us that the micro components are the ones which sustain the production factores. On this way the nutrigenomic animal gains more importance and prominent in the search forresourse efficiency. Thereby the aim of this work was to analyse the effects of peroxisome proliferator activated gamma receptors (PPARγ) in the transcription of lipogenic genes and its response to conjugated linoleic acid (mixture of isomers trans-10, cis12 and cis-9, trans-11) through a specific chemical agonist (TZD, thiazolinedione). 1) Control: growing medium, 400μl; 2) TZD: 40ml (10μMol/Lt); 3) CLA (50% of CLA trans10, cis-12 and 50% of CLA cis-9, trans-11): 30ml (315μMol/Lt) and 4) TZD+CLA: 40ml TZD (10μMol/Lt) + 30ml (315μMol/Lt). It was extracted the RNA, synthesized the complementary DNA (cDNA), and carried out the polimerase chain reaction in Real Time (PCR – Real Time), measured the genetic expression of isoform PIII of acetyl-CoA-carboxylase alpha (ACCα), fatty acid synthase (FASN), peroxisome proliferator activated gamma receptors (PPARγ), sterol regulatory elemento-binding protein 1 (SREBP1), cleavage activation protein of SREBP1 (SCAP), stearoyl-CoA-desaturase (SCD), insulin induced gene 1(INSIG1), insulin induced gene 2(INSIG2). Compared to control, the treatment TZD increased the genes expression being SREBP1(1010%), INSIG1 (789%), INSIG2 (849%), FASN (7831%), ACCα (8753%), SCD (6272%) and PPARγ (620%). Compared to the TZD+CLA treatment, the TZD treatment increased the expression of the genes SREBP1 (237%), ACCα (1729%), INSIG1 (7142%) and PPARγ (2480%). Compared to CLA treatment, TZD increased the expression of FASN (275%), SCAP (916%), SCD (206%) and INSIG2 (1700%). It was concluded that the use of chemical agonist TZD in explants of the mammary gland of ewes, grown in vitro has acted to induce a greater expression of PPARγ and CLA reduces the genes expression FASN, ACCα, SCD and SCAP. In the TZD+CLA treatment, the TZD does not exceed the capacity of reducing CLA gene expression for the PPARγ, FASN, SCD, SCAP, INSIG1 and INSIG2 / A busca pela otimização dos sistemas produtivos com animais conduz para além do fator animal, e nos mostram que os componentes “micro” são que sustentam os fatores de produção. Deste modo a nutrigenômica animal ganha cada vez mais importância e destaque na busca pela eficiência de recursos. Com isso, o presente trabalho visou analisar o efeito dos receptores ativados por proliferadores de peroxissomo gama (PPARγ) na transcrição de genes lipogênicos e sua resposta ao ácido linoleico conjugado (CLA, com os isômeros trans-10, cis-12 e cis-9, trans-11), através de um agonista químico específico (TZD, thiazolinediona). No experimento foram realizados cultivos de explantes de glândula mamária de ovelhas lactantes, submetidos aos seguintes tratamentos: 1) Controle: meio de cultivo, 400μl; 2) TZD: 40mL (10 μMol/Lt); 3) CLA: (50% de trans-10, cis-12 e 50% de cis-9, trans-11): 30mL (315 μMol/Lt) e; 4) TZD + CLA: 40mL TZD (10 μMol/Lt) + 30mL (315 μMol/Lt). Foi extraído o RNA, sintetizado o DNA complementar (cDNA) e realizado a reação da cadeia da polimerase em tempo real (PCR Real Time) e medida a expressão gênica da isoforma PIII da acetil-CoA-carboxilase alfa (ACCα), ácido graxo sintase (FASN), receptores ativados por proliferadores de peroxissomo gama (PPARγ), proteína de ligação ao elemento de resposta a esterol 1 (SREBP1), proteína de ativação de clivagem da SREBP1 (SCAP), estearoil-CoA-dessaturase (SCD), gene-1 induzido pela insulina (INSIG1), gene-2 induzido pela insulina (INSIG2). Comparado ao Controle, o TZD aumentou a expressão dos genes, sendo SREBP1 (1.010%), INSIG1 (789%), INSIG2 (849%), FASN (7831%), ACCα (8753%), SCD (6272%) e PPARγ (620%). Comparado ao tratamento TZD+CLA o TZD, aumentou a expressão dos genes SREBP1 (237%), ACCα (1729%), INSIG1 (7142%) e PPARγ (2480%). Em comparação ao tratamento CLA, o TZD aumentou a expressão da FASN (275%), SCAP (916%), SCD (206%) e INSIG2 (1700%). Conclui-se que o uso do agonista químico TZD em explantes da glândula mamária de ovelhas lactantes aumenta a expressão do PPARγ e o CLA reduz a expressão gênica da FASN, ACCα, SCD e SCAP. No tratamento TZD+CLA, o TZD não supera a capacidade de redução da expressão gênica do CLA para os genes PPARγ, FASN, SCD, SCAP, INSIG1 e INSIG2
2

Design, synthesis, and evaluation of thiazolidinedione derivatives inhibiting Bcl-2/Bcl-xL or ablating androgen receptor in prostate cancer

Yang, Jian 26 August 2009 (has links)
No description available.

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