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Ppar gamma

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https://www.readbyqxmd.com/read/28923856/genomic-activation-of-pparg-reveals-a-candidate-therapeutic-axis-in-bladder-cancer
#1
Jonathan T Goldstein, Ashton C Berger, Juliann Shih, Fujiko F Duke, Laura Furst, David J Kwiatkowski, Andrew D Cherniack, Matthew Meyerson, Craig A Strathdee
The PPARG gene encoding the nuclear receptor PPAR-gamma is activated in bladder cancer, either directly by gene amplification or mutation, or indirectly by mutation of the RXRA gene which encodes the heterodimeric partner of PPAR-gamma. Here we show that activating alterations of PPARG or RXRA lead to a specific gene expression signature in bladder cancers. Reducing PPARG activity, whether by pharmacologic inhibition or genetic ablation, inhibited proliferation of PPARG-activated bladder cancer cells. Our results offer a preclinical proof of concept for PPARG as a candidate therapeutic target in bladder cancer...
September 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28922099/the-effects-of-probiotic-supplementation-on-gene-expression-related-to-inflammation-insulin-and-lipids-in-patients-with-multiple-sclerosis-a-randomized-double-blind-placebo-controlled-trial
#2
Omid Reza Tamtaji, Ebrahim Kouchaki, Mahmoud Salami, Esmat Aghadavod, Elmira Akbari, Maryam Tajabadi-Ebrahimi, Zatollah Asemi
BACKGROUND: Limited data are available assessing the effects of probiotic supplementation on gene expression related to inflammation, insulin, and lipids in patients with multiple sclerosis (MS). OBJECTIVES: The current study was conducted to assess the effects of probiotic supplementation on gene expression related to inflammation, insulin, and lipids in patients with MS. METHODS: This randomized, double-blind, placebo-controlled clinical trial was performed among 40 patients with MS...
September 18, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28916975/flaxseed-oil-supplementation-improve-gene-expression-levels-of-ppar-%C3%AE-lp-a-il-1-and-tnf-%C3%AE-in-type-2-diabetic-patients-with-coronary-heart-disease
#3
Ali Akbar Hashemzadeh, Nikoo Nasoohi, Fariba Raygan, Esmat Aghadavod, Elmira Akbari, Mohsen Taghizadeh, Mohammad Reza Memarzadeh, Zatollah Asemi
This study was carried out to determine the effects of flaxseed oil administration on gene expression levels related to insulin, lipid and inflammation in overweight diabetic patients with coronary heart disease (CHD). This randomized double-blind, placebo-controlled trial was conducted among 60 diabetic patients with CHD. Subjects were randomly allocated into two groups to intake either 1000 mg n-3 fatty acid from flaxseed oil containing 400 mg α-Linolenic acid [ALA (18:3n-3)] (n = 30) or placebo (n = 30) twice a day for 12 weeks...
September 15, 2017: Lipids
https://www.readbyqxmd.com/read/28916286/toxicology-studies-of-primycin-sulphate-using-a-three-dimensional-3d-in-vitro-human-liver-aggregate-model
#4
Ágota Pénzes, Elhusseiny Mohamed Mahmud Abdelwahab, Judit Rapp, Zsanett A Péteri, Judit Bovári-Biri, Csaba Fekete, György Miskei, Krisztián Kvell, Judit E Pongrácz
Primycin-sulphate is a highly effective compound against Gram (G) positive bacteria. It has a potentially synergistic effect with vancomycin and statins which makes primycin-sulphate a potentially very effective preparation. Primycin-sulphate is currently used exclusively in topical preparations such as in in vitro animal hepatocyte and neuromuscular junction studies (in mice, rats, snakes, frogs) as well as in in vitro human red blood cell experiments. During these studies, the use of primycin-sulphate resulted in reduced cellular membrane integrity and modified ion channel activity...
September 12, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28915327/adipose-tissue-in-hiv-infection
#5
John R Koethe
HIV infection and antiretroviral therapy (ART) treatment exert diverse effects on adipocytes and stromal-vascular fraction cells, leading to changes in adipose tissue quantity, distribution, and energy storage. A HIV-associated lipodystrophic condition was recognized early in the epidemic, characterized by clinically apparent changes in subcutaneous, visceral, and dorsocervical adipose depots. Underlying these changes is altered adipose tissue morphology and expression of genes central to adipocyte maturation, regulation, metabolism, and cytokine signaling...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28905149/interactions-between-the-canonical-wnt-beta-catenin-pathway-and-ppar-gamma-on-neuroinflammation-demyelination-and-remyelination-in-multiple-sclerosis
#6
REVIEW
Alexandre Vallée, Jean-Noël Vallée, Rémy Guillevin, Yves Lecarpentier
Multiple sclerosis (MS) is marked by neuroinflammation and demyelination with loss of oligodendrocytes in the central nervous system. The immune response is regulated by WNT/beta-catenin pathway in MS. Activated NF-kappaB, a major effector of neuroinflammation, and upregulated canonical WNT/beta-catenin pathway positively regulate each other. Demyelinating events present an upregulation of WNT/beta-catenin pathway, whereas proper myelinating phases show a downregulation of WNT/beta-catenin pathway essential for the promotion of oligodendrocytes precursors cells proliferation and differentiation...
September 13, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28886715/peroxisome-proliferator-activated-receptor-gamma-potential-molecular-therapeutic-target-for-hiv-1-associated-brain-inflammation
#7
Amila Omeragic, Md Tozammel Hoque, U-Yeong Choi, Reina Bendayan
BACKGROUND: Despite the use of combination antiretroviral therapy for the treatment of HIV-1 infection, cognitive impairments remain prevalent due to persistent viral replication and associated brain inflammation. Primary cellular targets of HIV-1 in the brain are macrophages, microglia, and to a certain extent astrocytes which in response to infection release inflammatory markers, viral proteins [i.e., glycoprotein 120 (gp120)] and exhibit impaired glutamate uptake. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptor superfamily of ligand-activated transcription factors...
September 8, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28875327/the-effects-of-selenium-supplementation-on-gene-expression-related-to-insulin-and-lipid-in-infertile-polycystic-ovary-syndrome-women-candidate-for-in-vitro-fertilization-a-randomized-double-blind-placebo-controlled-trial
#8
Shahrzad Zadeh Modarres, Zahra Heidar, Fatemeh Foroozanfard, Zahra Rahmati, Esmat Aghadavod, Zatollah Asemi
This study was conducted to evaluate the effects of selenium supplementation on gene expression related to insulin and lipid in infertile women with polycystic ovary syndrome (PCOS) candidate for in vitro fertilization (IVF). This randomized double-blind, placebo-controlled trial was conducted among 40 infertile women with PCOS candidate for IVF. Subjects were randomly allocated into two groups to intake either 200-μg selenium (n = 20) or placebo (n = 20) per day for 8 weeks. Gene expression levels related to insulin and lipid were quantified in lymphocytes of women with PCOS candidate for IVF with RT-PCR method...
September 5, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28872641/polyunsaturated-fatty-acid-deficiency-during-neurodevelopment-in-mice-models-the-prodromal-state-of-schizophrenia-through-epigenetic-changes-in-nuclear-receptor-genes
#9
M Maekawa, A Watanabe, Y Iwayama, T Kimura, K Hamazaki, S Balan, H Ohba, Y Hisano, Y Nozaki, T Ohnishi, M Toyoshima, C Shimamoto, K Iwamoto, M Bundo, N Osumi, E Takahashi, A Takashima, T Yoshikawa
The risk of schizophrenia is increased in offspring whose mothers experience malnutrition during pregnancy. Polyunsaturated fatty acids (PUFAs) are dietary components that are crucial for the structural and functional integrity of neural cells, and PUFA deficiency has been shown to be a risk factor for schizophrenia. Here, we show that gestational and early postnatal dietary deprivation of two PUFAs-arachidonic acid (AA) and docosahexaenoic acid (DHA)-elicited schizophrenia-like phenotypes in mouse offspring at adulthood...
September 5, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28839361/ethanolic-fraction-of-terminalia-tomentosa-attenuates-biochemical-and-physiological-derangements-in-diet-induced-obese-rat-model-by-regulating-key-lipid-metabolizing-enzymes-and-adipokines
#10
Balaji Meriga, Parim Brahma Naidu, Ganjayi Muniswamy, Gen Hanuma Kumar, Ramavat Ravindar Naik, Suresh Pothani
The prevalence of overweight-obesity and associated comorbidities have reached alarming levels necessitating the need to explore effective therapeutics. In the present work, we demonstrated the promising antiobesity activity of ethanolic fraction of Terminalia tomentosa bark (EFTT) in diet induced obese rat model. High Fat Diet (HFD)-fed obese rats were orally administered with EFTT (50, 100 and 200 mg/kg body weight). Changes in body weight, body composition, bone mineral concentration, bone mineral density, plasma glucose, insulin, leptin, adiponectin, circulatory and tissue lipid profiles, and the activities of liver antioxidant enzymes, key lipid metabolic enzymes and mRNA expressions of fatty acid synthase (FAS), peroxisome proliferator-activated receptor gamma (PPAR-γ), leptin and tumor necrosis factor alpha (TNF-α) were assessed in experimental rats in the presence and absence of EFTT...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28838346/molecular-effects-of-leptin-on-peroxisome-proliferator-activated-receptor-gamma-ppar-%C3%AE-mrna-expression-in-rat-s-adipose-and-liver-tissue
#11
A Abbasi, A A Moghadam, Z Kahrarian, R Abbsavaran, K Yari, E Alizadeh
Leptin is a 16-kDa peptide hormone secreted by adipose tissue that participates in the regulation of energy homeostasis. The aim of this study was to determine the effect of leptin injection on mRNA expression of peroxisome proliferator-activated receptor gamma (PPAR-γ) and comparison of PPAR-γ mRNA expression in rat's adipose and liver tissue. Twenty adult male rats were divided into the following groups: Group 1asa control (n=10) that did not receive any treatment. Group 2as a treatment (n=10) that received leptin (30 µg ⁄ kg BW) intraperitoneally (ip) for two successive days...
August 15, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28822960/loss-of-perilipin-2-in-cultured-myotubes-enhances-lipolysis-and-redirects-the-metabolic-energy-balance-from-glucose-oxidation-towards-fatty-acid-oxidation
#12
Yuan Z Feng, Jenny Lund, Yuchuan Li, Irlin K Knabenes, Siril S Bakke, Eili Tranheim Kase, Yun K Lee, Alan R Kimmel, G Hege Thoresen, Arild Christian Rustan, Knut Tomas Dalen
Lipid droplet (LD) coating proteins are essential for the formation and stability of intracellular LDs. Plin2 is an abundant LD coating protein in skeletal muscle, but its importance for muscle function is unclear. We show that myotubes established from Plin2-/- mice contain reduced content of LDs and accumulate less oleic acid in triacylglycerol (TAG), due to elevated LD hydrolysis compared to Plin2+/+ myotubes. The reduced ability to store TAG in LDs in Plin2-/- myotubes is accompanied by a shift in energy metabolism...
August 19, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28805446/epigallocatechin-gallate-as-an-anti-obesity-therapeutic-compound-an-in-silico-approach-for-structure-based-drug-designing
#13
Muhammad Shahid Javaid, Noreen Latief, Bushra Ijaz, Usman Ali Ashfaq
Epigallocatechin gallate is a polyphenol of tea plants. Other than tea its trace amounts are found in apple skin, onions and plums. It has anti-adipogenic and anti-oxidant potential. It was investigated that epigallocatechin gallate stopped the adipogenic differentiation of mice mesenchymal stem cells but its underlying mechanism is not well understood. Different proteins and transcription factors responsible for differentiation of adipocytes could be its targets. This study was designed to determine the potential target of epigallocatechin gallate in human...
August 14, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28804442/mesozeaxanthin-protects-the-liver-and-reduces-cardio-metabolic-risk-factors-in-an-insulin-resistant-rodent-model
#14
Kazim Sahin, Cemal Orhan, Fatih Akdemir, Mehmet Tuzcu, Nurhan Sahin, Ismet Yilmaz, Shakir Ali, Jayant Deshpande, Vijaya Juturu
Background: Mesozeaxanthin (MZ) is a macular carotenoid which has been reported to have a number of pharmacological properties, including the antioxidant, and anticarcinogenic property, and has been stated to decrease the hepatocyte lipid content. Objective: In this study, we investigated the effect of MZ on cardio-metabolic health risk (CMHR) and its probable mechanisms of action in rats fed a high-fat diet (HFD). Design: Rats were randomly divided into four groups consisting of (i) Control, (ii) MZ, (iii) HFD, and (iv) HFD+MZ...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28768949/design-and-synthesis-of-peroxisome-proliferator-activated-receptor-ppar-gamma-antagonists-based-on-the-principle-of-operation-of-nuclear-receptor-i
#15
Masao Ohashi, Hiroyuki Miyachi
 Peroxisome proliferator-activated receptor γ (PPARγ) antagonist is a molecular target to create drug for the treatment of not only type 2 diabetes and obesity, but also cancer. However, few rational drug design strategies and concepts are available. Here, we utilized the nuclear receptor helix12-folding inhibition hypothesis, in combination with structural biology data of our PPARγ agonist (5) complexed with the PPARγ ligand-binding domain. We found a potent phenylalkynyl amide-type PPARγ antagonist 18i, based on pinpoint structural modification of the acidic head part of 5...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28764300/effect-of-pranayama-on-ppar-%C3%AE-nf-%C3%AE%C2%BAb-expressions-and-red-complex-microorganisms-in-patients-with-chronic-periodontitis-a-clinical-trial
#16
Jaideep Mahendra, Little Mahendra, R Ananthalakshmi, Prathahini S Parthiban, Sandhya Cherukuri, Mohammed Junaid
INTRODUCTION: Sudarshankriya pranayama is the control of breathing movements to regulate the energy flow throughout the body, which has shown to positively affect immune function, autonomic nervous system and psychologic-neuro pathways. The practice of pranayama has been proven to show several benefits such as reduction in stress levels, relieves anxiety and depression, increase in antioxidant levels, reduces insulin resistance and improves respiratory function. AIM: The objective of the study was to evaluate the levels of Peroxisome Proliferator-Activated Receptor Gamma (PPAR-γ), Nuclear Factor-Kappa B (NF-κB) and the presence of Red Complex Microorganisms (RCM) such as Treponema denticola, Porphyromonas gingivalis and Tannerella forsythia in the subgingivalpl aque samples of chronic periodontitis subjects before and after intervention with pranayama as an adjunct to Scaling and Root Planing (SRP)...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28744220/rosmarinic-acid-protects-against-inflammation-and-cardiomyocyte-apoptosis-during-myocardial-ischemia-reperfusion-injury-by-activating-peroxisome-proliferator-activated-receptor-gamma
#17
Jichun Han, Dong Wang, Lei Ye, Peng Li, Wenjin Hao, Xiaoyu Chen, Jun Ma, Bo Wang, Jing Shang, Defang Li, Qiusheng Zheng
The cardiac ischemia-reperfusion (I/R) injury greatly influences the therapeutic effect and remains an urgent challenge in clinical therapy. Polypharmacology opens a new therapeutic opportunity to design drugs with a specific target for improving the efficacy. In this study, we first forecasted that Rosmarinic acid (RosA) could be used for the treatment of cardiovascular disease using text mining, chemometric and chemogenomic methods. Consistent with the effect of the positive drug (pioglitazone, PIO), we subsequently validated that RosA pretreatment could restore the decreased cardiac hemodynamic parameters (LVDP, ± dp/dtmin, ± dp/dtmax and CF), decreased the infarct size and the cardiomyocyte apoptosis in a rat model of cardiac I/R injury...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28716729/study-of-new-interactions-of-glitazone-s-stereoisomers-and-the-endogenous-ligand-15d-pgj2-on-six-different-ppar-gamma-proteins
#18
Samuel Álvarez-Almazán, Martiniano Bello, Feliciano Tamay-Cach, Marlet Martínez-Archundia, Diana Alemán-González-Duhart, José Correa-Basurto, Jessica Elena Mendieta-Wejebe
Diabetes mellitus is a chronic disease characterized by hyperglycemia, insulin resistance and hyperlipidemia. Glitazones or thiazolidinediones (TZD) are drugs that act as insulin-sensitizing agents whose molecular target is the peroxisome proliferator-activated receptor gamma (PPARγ). The euglycemic action of TZD has been linked with the induction of type 4 glucose transporter. However, it has been shown that the effect of TZD depends on the specific stereoisomer that interacts with PPARγ. Therefore, this work is focused on exploring the interactions and geometry adopted by glitazone's stereoisomers and one endogenous ligand on different conformations of the six crystals of the PPARγ protein using molecular docking and molecular dynamics (MD) simulations accompanied by the MMGBSA approach...
July 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28716464/modulating-effects-of-omega-3-fatty-acids-and-pioglitazone-combination-on-insulin-resistance-through-toll-like-receptor-4-in-type-2-diabetes-mellitus
#19
Salma M Eraky, Noha Abdel-Rahman, Laila A Eissa
Toll-like receptor 4 (TLR-4) plays important roles in innate immunity. Changes in the reduction-oxidation balance of tissues can lead to a pro-inflammatory state and insulin resistance. An action thought to be mediated by TLRs. Omega-3 fatty acids and Peroxisome Proliferator Activated Receptor gamma (PPAR-γ) agonists as pioglitazone are used for decreasing inflammation. The aim of this study is to investigate the anti-diabetic effects of combining omega -3 fatty acid with pioglitazone on type 2 diabetes, and the modifying effects on TLR-4...
June 17, 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28711683/anti-obesogenic-effects-of-wy14643-ppar-alpha-agonist-hepatic-mitochondrial-enhancement-and-suppressed-lipogenic-pathway-in-diet-induced-obese-mice
#20
Flavia Maria Silva Veiga, Francielle Graus-Nunes, Tamiris Lima Rachid, Aline Barcellos Barreto, Carlos Alberto Mandarim-de-Lacerda, Vanessa Souza-Mello
Non-alcoholic fatty liver disease (NAFLD) presents with growing prevalence worldwide, though its pharmacological treatment remains to be established. This study aimed to evaluate the effects of a PPAR-alpha agonist on liver tissue structure, ultrastructure, and metabolism, focusing on gene and protein expression of de novo lipogenesis and gluconeogenesis pathways, in diet-induced obese mice. Male C57BL/6 mice (three months old) received a control diet (C, 10% of lipids, n = 10) or a high-fat diet (HFD, 50% of lipids, n = 10) for ten weeks...
September 2017: Biochimie
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