583 Role of peroxisome proliferators-activated receptors alpha and gamma in atrophic and metaplastic gastritis

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


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.


2001 ◽  
Vol 29 (1) ◽  
pp. 149-155 ◽  
Author(s):  
Richard T. Miller ◽  
Lori A. Scappino ◽  
Sarah M. Long ◽  
J. Christopher Corton

2000 ◽  
Vol 2 (3) ◽  
pp. 607-621 ◽  
Author(s):  
Ivan Rusyn ◽  
Michelle L. Rose ◽  
Heidi K. Bojes ◽  
Ronald G. Thurman

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