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PPAR Research

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https://www.readbyqxmd.com/read/29230238/fluid-retention-caused-by-rosiglitazone-is-related-to-increases-in-aqp2-and-%C3%AE-enac-membrane-expression
#1
Jinghua Xu, Mingyue Pan, Xiaoli Wang, Lishi Xu, Lanfang Li, Cheng Xu
Peroxisome proliferator activated receptor-γ (PPARγ) is a ligand-activated transcription factor of the nuclear hormone receptor superfamily. The decreased phosphorylation of PPARγ due to rosiglitazone (ROS) is the main reason for the increased insulin sensitivity caused by this antidiabetic drug. However, there is no clear evidence whether the nuclear translocation of p-PPARγ stimulated by ROS is related to fluid retention. It is also unclear whether the translocation of p-PPARγ is associated with the change of aquaporin-2 (AQP2) and epithelial sodium channel α subunit (αENaC) in membranes, cytoplasm, and nucleus...
2017: PPAR Research
https://www.readbyqxmd.com/read/29225614/new-transcriptional-reporters-to-quantify-and-monitor-ppar%C3%AE-activity
#2
Séverine A Degrelle, Hussein Shoaito, Thierry Fournier
The peroxisome-proliferator-activated-receptor-γ (PPARγ) is a member of the nuclear receptor superfamily that plays a critical role in diverse biological processes, including adipogenesis, lipid metabolism, and placental development. To study the activity of PPARγ, we constructed two new reporter genes: a fluorescent GFP-tagged histone-2B (PPRE-H2B-eGFP) and a secreted nanoluciferase (PPRE-pNL1.3[secNluc]). This study demonstrates their usage to monitor PPARγ activity in different cell types and screen for PPARγ's potential ligands...
2017: PPAR Research
https://www.readbyqxmd.com/read/29201040/caffeoylquinic-acid-rich-extract-of-aster-glehni-f-schmidt-ameliorates-nonalcoholic-fatty-liver-through-the-regulation-of-ppar%C3%AE-and-adiponectin-in-apoe-ko-mice
#3
Yong-Jik Lee, Yoo-Na Jang, Yoon-Mi Han, Hyun-Min Kim, Jong-Min Jeong, Min Jeoung Son, Chang Bae Jin, Hyoung Ja Kim, Hong Seog Seo
Aster glehni is well known for its therapeutic properties. This study was performed to investigate the effects of A. glehni on nonalcoholic fatty liver disease (NAFLD) in atherosclerotic condition, by determining the levels of biomarkers related to lipid metabolism and inflammation in serum, liver, and adipose tissue. Body and abdominal adipose tissue weights and serum triglyceride level decreased in all groups treated with A. glehni. Serum adiponectin concentration and protein levels of peroxisome proliferator-activated receptor δ, 5' adenosine monophosphate-activated protein kinase, acetyl-CoA carboxylase, superoxide dismutase, and PPARγ coactivator 1-alpha in liver tissues increased in the groups treated with A...
2017: PPAR Research
https://www.readbyqxmd.com/read/29181019/crosstalk-between-the-androgen-receptor-and-ppar-gamma-signaling-pathways-in-the-prostate
#4
REVIEW
Emuejevoke Olokpa, Patrice E Moss, LaMonica V Stewart
Nuclear receptors are a superfamily of ligand-activated transcription factors that play critical roles in the regulation of normal biological processes and several disease states. Of the nuclear receptors expressed within the prostate, the androgen receptor (AR) promotes the differentiation of prostatic epithelial cells and stimulates production of enzymes needed for liquefaction of semen. Multiple forms of AR also promote the growth of both early and late stage prostate cancers. As a result, drugs that target the AR signaling pathway are routinely used to treat patients with advanced forms of prostate cancer...
2017: PPAR Research
https://www.readbyqxmd.com/read/29093735/myocardial-expression-of-ppar%C3%AE-and-exercise-capacity-in-patients-after-coronary-artery-bypass-surgery
#5
Izabela Wojtkowska, Tomasz A Bonda, Jadwiga Wolszakiewicz, Jerzy Osak, Andrzej Tysarowski, Katarzyna Seliga, Janusz A Siedlecki, Maria M Winnicka, Ryszard Piotrowicz, Janina Stępińska
Activation of PPARs may be involved in the development of heart failure (HF). We evaluated the relationship between expression of PPARγ in the myocardium during coronary artery bypass grafting (CABG) and exercise tolerance initially and during follow-up. 6-minute walking test was performed before CABG, after 1, 12, 24 months. Patients were divided into two groups (HF and non-HF) based on left ventricular ejection fraction and plasma proBNP level. After CABG, 67% of patients developed HF. The mean distance 1 month after CABG in HF was 397 ± 85 m versus 420 ± 93 m in non-HF...
2017: PPAR Research
https://www.readbyqxmd.com/read/29056962/chiglitazar-preferentially-regulates-gene-expression-via-configuration-restricted-binding-and-phosphorylation-inhibition-of-ppar%C3%AE
#6
De-Si Pan, Wei Wang, Nan-Song Liu, Qian-Jiao Yang, Kun Zhang, Jing-Zhong Zhu, Song Shan, Zhi-Bin Li, Zhi-Qiang Ning, Laiqiang Huang, Xian-Ping Lu
Type 2 diabetes mellitus is often treated with insulin-sensitizing drugs called thiazolidinediones (TZD), which improve insulin resistance and glycemic control. Despite their effectiveness in treating diabetes, these drugs provide little protection from eminent cardiovascular disease associated with diabetes. Here we demonstrate how chiglitazar, a configuration-restricted non-TZD peroxisome proliferator-activated receptor (PPAR) pan agonist with moderate transcription activity, preferentially regulates ANGPTL4 and PDK4, which are involved in glucose and lipid metabolism...
2017: PPAR Research
https://www.readbyqxmd.com/read/28819354/mediating-roles-of-ppars-in-the-effects-of-environmental-chemicals-on-sex-steroids
#7
REVIEW
Qiansheng Huang, Qionghua Chen
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated nuclear receptors that are widely involved in various physiological functions. They are widely expressed through the reproductive system. Their roles in the metabolism and function of sex steroids and thus the etiology of reproductive disorders receive great concern. Various kinds of exogenous chemicals, especially environmental pollutants, exert their adverse impact on the reproductive system through disturbing the PPAR signaling pathway...
2017: PPAR Research
https://www.readbyqxmd.com/read/28781590/association-of-ppar-alpha-intron-7-g-c-ppar-gamma-2-pro12ala-and-c161t-polymorphisms-with-serum-fetuin-a-concentrations
#8
Bernadett Márkus, Krisztián Vörös, Dorina Supák, Zsolt Melczer, Károly Cseh, László Kalabay
BACKGROUND: Both peroxisome activator proteins (PPARs) and fetuin-A play a role in lipid and glucose metabolism. AIMS: We investigated whether PPARα intron 7 G2468/C and PPARγ2 Pro12Ala and PPARγ exon 6 C161T polymorphisms are associated with serum fetuin-A concentrations. PATIENTS AND METHODS: The PPARα intron 7 G/C polymorphism was studied in cohort 1 (79 reference individuals, 165 postinfarction patients). The two PPARγ polymorphisms were investigated in cohort 2 (162 reference individuals, 165 postinfarction patients)...
2017: PPAR Research
https://www.readbyqxmd.com/read/28740504/2-4-thiazolidinedione-treatment-improves-the-innate-immune-response-in-dairy-goats-with-induced-subclinical-mastitis
#9
Fernanda Rosa, Johan S Osorio, Erminio Trevisi, Francisco Yanqui-Rivera, Charles T Estill, Massimo Bionaz
Mastitis is a major disease in dairy cows resulting in significant economic losses. In vitro works suggest that ruminants peroxisome proliferator-activated receptor gamma (PPARγ) can aid in improving the response to mastitis and can control milk fat synthesis. The objectives of the present experiment were to test if treatment with the putative PPARγ agonist 2,4-thiazolidinedione (TZD) improves (1) the response to subclinical mastitis and (2) milk fat production. Lactating goats received daily injections of 8 mg/kg BW of TZD or saline for 3 weeks...
2017: PPAR Research
https://www.readbyqxmd.com/read/28659972/discovery-of-novel-insulin-sensitizers-promising-approaches-and-targets
#10
REVIEW
Yadan Chen, Haiming Ma, Dasheng Zhu, Guowei Zhao, Lili Wang, Xiujuan Fu, Wei Chen
Insulin resistance is the undisputed root cause of type 2 diabetes mellitus (T2DM). There is currently an unmet demand for safe and effective insulin sensitizers, owing to the restricted prescription or removal from market of certain approved insulin sensitizers, such as thiazolidinediones (TZDs), because of safety concerns. Effective insulin sensitizers without TZD-like side effects will therefore be invaluable to diabetic patients. The specific focus on peroxisome proliferator-activated receptor γ- (PPARγ-) based agents in the past decades may have impeded the search for novel and safer insulin sensitizers...
2017: PPAR Research
https://www.readbyqxmd.com/read/28638404/puerarin-protects-against-cardiac-fibrosis-associated-with-the-inhibition-of-tgf-%C3%AE-1-smad2-mediated-endothelial-to-mesenchymal-transition
#11
Ya-Ge Jin, Yuan Yuan, Qing-Qing Wu, Ning Zhang, Di Fan, Yan Che, Zhao-Peng Wang, Yang Xiao, Sha-Sha Wang, Qi-Zhu Tang
BACKGROUND: Puerarin is a kind of flavonoids and is extracted from Chinese herb Kudzu root. Puerarin is widely used as an adjuvant therapy in Chinese clinics. But little is known about its effects on regulating cardiac fibrosis. METHODS: Mice were subjected to transverse aorta constriction (TAC) for 8 weeks; meanwhile puerarin was given 1 week after TAC. Cardiac fibrosis was assessed by pathological staining. The mRNA and protein changes of CD31 and vimentin in both animal and human umbilical vein endothelial cells (HUVECs) models were detected...
2017: PPAR Research
https://www.readbyqxmd.com/read/28529521/the-interplay-between-metabolism-ppar-signaling-pathway-and-cancer
#12
EDITORIAL
Daniele Fanale, Valeria Amodeo, Stefano Caruso
No abstract text is available yet for this article.
2017: PPAR Research
https://www.readbyqxmd.com/read/28458685/fatty-acids-of-cla-enriched-egg-yolks-can-induce-transcriptional-activation-of-peroxisome-proliferator-activated-receptors-in-mcf-7-breast-cancer-cells
#13
Aneta A Koronowicz, Paula Banks, Adam Master, Dominik Domagała, Ewelina Piasna-Słupecka, Mariola Drozdowska, Elżbieta Sikora, Piotr Laidler
In our previous study, we showed that fatty acids from CLA-enriched egg yolks (EFA-CLA) reduced the proliferation of breast cancer cells; however, the molecular mechanisms of their action remain unknown. In the current study, we used MCF-7 breast cancer cell line to determine the effect of EFA-CLA, as potential ligands for peroxisome proliferator-activated receptors (PPARs), on identified in silico PPAR-responsive genes: BCAR3, TCF20, WT1, ZNF621, and THRB (transcript TRβ2). Our results showed that EFA-CLA act as PPAR ligands with agonistic activity for all PPAR isoforms, with the highest specificity towards PPARγ...
2017: PPAR Research
https://www.readbyqxmd.com/read/28386270/fimasartan-ameliorates-nonalcoholic-fatty-liver-disease-through-ppar%C3%AE-regulation-in-hyperlipidemic-and-hypertensive-conditions
#14
Yong-Jik Lee, Yoo-Na Jang, Yoon-Mi Han, Hyun-Min Kim, Jong-Min Jeong, Hong Seog Seo
To investigate the effects of fimasartan on nonalcoholic fatty liver disease in hyperlipidemic and hypertensive conditions, the levels of biomarkers related to fatty acid metabolism were determined in HepG2 and differentiated 3T3-L1 cells treated by high fatty acid and liver and visceral fat tissue samples of spontaneously hypertensive rats (SHRs) given high-fat diet. In HepG2 cells and liver tissues, fimasartan was shown to increase the protein levels of peroxisome proliferator-activated receptor delta (PPARδ), phosphorylated 5' adenosine monophosphate-activated protein kinase (p-AMPK), phosphorylated acetyl-CoA carboxylase (p-ACC), malonyl-CoA decarboxylase (MCD), medium chain acyl-CoA dehydrogenase (MCAD), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), and it led to a decrease in the protein levels of 11 beta-hydroxysteroid dehydrogenase 1 (11β-HSDH1), fatty acid synthase (FAS), and tumor necrosis factor-alpha (TNF-α)...
2017: PPAR Research
https://www.readbyqxmd.com/read/28356907/neuroprotective-effect-and-mechanism-of-thiazolidinedione-on-dopaminergic-neurons-in-vivo-and-in-vitro-in-parkinson-s-disease
#15
Yanqin Wang, Weilin Zhao, Ge Li, Jinhu Chen, Xin Guan, Xi Chen, Zhenlong Guan
The aim of the present study was to gain insight into the neuroprotection effects and mechanism of thiazolidinedione pioglitazone in both in vitro and in vivo MPP(+)/MPTP induced PD models. In vivo experimental results showed that oral treatment of pioglitazone resulted in significant improvements in behavior symptoms damaged by MPTP and increase in the survival of TH positive neurons in the pioglitazone intervention groups. In addition, oral treatment of pioglitazone increased the expression of peroxisome proliferator-activated receptor-γ coactivator of 1α (PGC-1α) and increased the number of mitochondria, along with an observed improvement in mitochondrial ultrastructure...
2017: PPAR Research
https://www.readbyqxmd.com/read/28348577/deciphering-the-roles-of-thiazolidinediones-and-ppar%C3%AE-in-bladder-cancer
#16
REVIEW
Melody Chiu, Lucien McBeth, Puneet Sindhwani, Terry D Hinds
The use of thiazolidinedione (TZD) therapy in type II diabetic patients has proven useful in the lowering of blood glucose levels. However, recent investigations have shown that there may be potential health concerns associated, including the risk of developing bladder cancer as well as complications in the cardiovasculature. TZDs are ligands for the nuclear receptor PPARγ, and activation causes lipid uptake and insulin sensitization, both of which are critical processes for diabetic patients whose bodies are unable to utilize insulin effectively...
2017: PPAR Research
https://www.readbyqxmd.com/read/28321247/investigations-on-binding-pattern-of-kinase-inhibitors-with-ppar%C3%AE-molecular-docking-molecular-dynamic-simulations-and-free-energy-calculation-studies
#17
Mohit Mazumder, Prija Ponnan, Umashankar Das, Samudrala Gourinath, Haseeb Ahmad Khan, Jian Yang, Meena Kishore Sakharkar
Peroxisome proliferator-activated receptor gamma (PPARγ) is a potential target for the treatment of several disorders. In view of several FDA approved kinase inhibitors, in the current study, we have investigated the interaction of selected kinase inhibitors with PPARγ using computational modeling, docking, and molecular dynamics simulations (MDS). The docked conformations and MDS studies suggest that the selected KIs interact with PPARγ in the ligand binding domain (LBD) with high positive predictive values...
2017: PPAR Research
https://www.readbyqxmd.com/read/28316613/ppar-agonists-for-the-prevention-and-treatment-of-lung-cancer
#18
REVIEW
Sowmya P Lakshmi, Aravind T Reddy, Asoka Banno, Raju C Reddy
Lung cancer is the most common and most fatal of all malignancies worldwide. Furthermore, with more than half of all lung cancer patients presenting with distant metastases at the time of initial diagnosis, the overall prognosis for the disease is poor. There is thus a desperate need for new prevention and treatment strategies. Recently, a family of nuclear hormone receptors, the peroxisome proliferator-activated receptors (PPARs), has attracted significant attention for its role in various malignancies including lung cancer...
2017: PPAR Research
https://www.readbyqxmd.com/read/28298922/interactions-between-ppar-gamma-and-the-canonical-wnt-beta-catenin-pathway-in-type-2-diabetes-and-colon-cancer
#19
REVIEW
Yves Lecarpentier, Victor Claes, Alexandre Vallée, Jean-Louis Hébert
In both colon cancer and type 2 diabetes, metabolic changes induced by upregulation of the Wnt/beta-catenin signaling and downregulation of peroxisome proliferator-activated receptor gamma (PPAR gamma) may help account for the frequent association of these two diseases. In both diseases, PPAR gamma is downregulated while the canonical Wnt/beta-catenin pathway is upregulated. In colon cancer, upregulation of the canonical Wnt system induces activation of pyruvate dehydrogenase kinase and deactivation of the pyruvate dehydrogenase complex...
2017: PPAR Research
https://www.readbyqxmd.com/read/28243251/ppar%C3%AE-and-its-role-in-cardiovascular-diseases
#20
REVIEW
Mini Chandra, Sumitra Miriyala, Manikandan Panchatcharam
Peroxisome proliferator-activated receptor Gamma (PPARγ), a ligand-activated transcription factor, has a role in various cellular functions as well as glucose homeostasis, lipid metabolism, and prevention of oxidative stress. The activators of PPARγ are already widely used in the treatment of diabetes mellitus. The cardioprotective effect of PPARγ activation has been studied extensively over the years making them potential therapeutic targets in diseases associated with cardiovascular disorders. However, they are also associated with adverse cardiovascular events such as congestive heart failure and myocardial infarction...
2017: PPAR Research
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