Tocotrienol enriched palm oil prevents atherosclerosis through modulating the activities of peroxisome proliferators-activated receptors

2010 ◽  
Vol 211 (1) ◽  
pp. 278-282 ◽  
Author(s):  
Fengjuan Li ◽  
Wenjuan Tan ◽  
Zhanfang Kang ◽  
Chi-Wai Wong
Author(s):  
Tripathi RB ◽  
Jain J ◽  
Siddiqui AW

The Peroxisome proliferators-activated receptors (PPARs) are one of the nuclear fatty acid receptors, which contain a type II zincfinger DNA binding pattern and a hydrophobic ligand binding pocket. These receptors are thought to play an essential role in metabolic diseasessuch as obesity, insulin resistance, and coronary artery disease. Therefore Peroxisome Proliferators-Activated Receptor (PPARγ) activators havedrawn great recent attention in the clinical management of type 2 diabetes mellitus, prompting several attempts to discover and optimize newPPARγ activators. Objective: The aim of the study was to finding new selective human PPARγ (PPARγ) modulators that are able to improveglucose homeostasis with reduced side effects compared with TZDs and identify the specific molecular descriptor and structural constraint toimprove the agonist activity of PPARγ analogs. Material and Method: Software’s that was used for this study include S.P. Gupta QSARsoftware (QSAR analysis), Valstat (Comparative QSAR analysis and calculation of L-O-O, Q2, r2, Spress), BILIN (Comparative QSAR analysisand calculation of Q2, r, S, Spress, and F), etc., allowing directly performing statistical analysis. Then multiple linear regression based QSARsoftware (received from BITS-Pilani, India) generates QSAR equations. Result and Discussion: In this study, we explored the quantitativestructure–activity relationship (QSAR) study of a series of meta-substituted Phenyl-propanoic acids as Peroxisome Proliferators Gamma activatedreceptor agonists (PPARγ).The activities of meta-substituted Phenyl-propanoic acids derivatives correlated with various physicochemical, electronic and steric parameters.Conclusion: The identified QSAR models highlighted the significance of molar refractivity and hydrophobicity to the biological activity.


PPAR Research ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Valerio Pazienza ◽  
Manlio Vinciguerra ◽  
Gianluigi Mazzoccoli

Nowadays, the study of the peroxisome proliferators activated receptors (PPARs) as potential targets for cancer prevention and therapy has gained a strong interest. From a biological point of view, the overall responsibility of PPARs in cancer development and progression is still controversial since several studies report both antiproliferative and tumor-promoting actions for these signaling molecules in human cancer cells and animal models. In this paper, we discuss PPARs functions in the context of different types of gastrointestinal cancer.


Shock ◽  
2006 ◽  
Vol 26 (Supplement 1) ◽  
pp. 24-25 ◽  
Author(s):  
Emanuela Esposito ◽  
Rosanna Di Paola ◽  
Emanuela Mazzon ◽  
Tiziana Genovese ◽  
Carmelo Mui?? ◽  
...  

2003 ◽  
Vol 144 ◽  
pp. s156
Author(s):  
A. Sapone ◽  
L. Gatta ◽  
S. Trespidi ◽  
D. Vaira ◽  
F. Perna ◽  
...  

2008 ◽  
Vol 51 (2) ◽  
pp. 199-200
Author(s):  
Y. Wu ◽  
X. Liu ◽  
S. Hou ◽  
J. Wang ◽  
Y. Liu ◽  
...  

Abstract. Modern strains of ducks exhibit excessive body fat deposition, which is one of the main problems encountered by duck industry today. Excess fat deposition has led commercial breeders to incorporate significant selection for reduced body fatness in breeding programs. Peroxisome proliferators-activated receptors (PPARs) belong to the nuclear receptor superfamily (SCHOONJANS et al., 1996). In particular peroxisome proliferators-activated receptor gamma, PPARG has been implicated in the regulation of lipid metabolism and, consequently, in diseases that involve disturbances in lipid metabolism (obesity, diabetes, atherosclerosis, cardiac failure) (VAN et al., 2002). Thus PPARG is a candidate gene for traits related to fat deposition.


PPAR Research ◽  
2008 ◽  
Vol 2008 ◽  
pp. 1-15 ◽  
Author(s):  
Giuseppina Barrera ◽  
Cristina Toaldo ◽  
Stefania Pizzimenti ◽  
Angelo Cerbone ◽  
Piergiorgio Pettazzoni ◽  
...  

Peroxisome proliferators-activated receptors (PPARs) are ligand-activated transcription factors that belong to the nuclear hormone receptor superfamily. The three PPAR isoforms (, and ) have been found to play a pleiotropic role in cell fat metabolism. Furthermore, in recent years, evidence has been found regarding the antiproliferative, proapoptotic, and differentiation-promoting activities displayed by PPAR ligands, particularly by PPAR ligands. PPAR ligands affect the expression of different growth-related genes through both PPAR-dependent and PPAR-independent mechanisms. Moreover, an interaction between PPAR ligands and other molecules which strengthen the effects of PPAR ligands has been described. Here we review the action of PPAR on the control of gene expression with particular regard to the effect of PPAR ligands on the expression of genes involved in the regulation of cell-cycle, differentiation, and apoptosis. Moreover, the interaction between PPAR ligands and 4-hydroxynonenal (HNE), the major product of the lipid peroxidation, has been reviewed.


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