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https://www.readbyqxmd.com/read/29225318/caffeine-stimulated-intestinal-epithelial-cells-suppress-lipid-accumulation-in-adipocytes
#1
Takakazu Mitani, Tomoya Nagano, Kiyonari Harada, Yoko Yamashita, Hitoshi Ashida
Caffeine is a methylxanthine derived from plant foods such as coffee beans and tea leaves, and has multiple biological activities against physiological response and several diseases. Although there are some reports about the direct effect of caffeine against anti-lipid accumulation in vitro, the effect of caffeine on lipid accumulation in adipocytes through stimulating intestinal epithelial cells is unknown. Since direct treatment with caffeine to 3T3-L1 cells did not affect lipid accumulation, we determined whether caffeine-stimulated intestinal epithelial Caco-2 cells influence the lipid accumulation in 3T3-L1 adipocytes...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/29224415/preclinical-evaluation-of-saroglitazar-magnesium-a-dual-ppar-%C3%AE-%C3%AE-agonist-for-treatment-of-dyslipidemia-and-metabolic-disorders
#2
Harilal Patel, Poonam Giri, Prakash Patel, Sanjay Singh, Laxmikant Gupta, Urvesh Patel, Nirav Modi, Kalpesh Shah, Mukul R Jain, Nuggehally R Srinivas, Pankaj Patel
Saroglitazar, a novel peroxisome proliferator-activated receptor agonist (PPAR), regulates lipid and glucose metabolism. The objective of this report is to provide a preclinical evaluation (in vitro/in vivo) of ADME properties of saroglitazar. In vitro studies included determination of permeability, metabolic stability, plasma protein binding, CYP reaction phenotyping and CYP inhibitory liability. In vivo studies included oral bioavailability and pharmacokinetic assessment in mouse, rat and dog. The excretion of saroglitazar was determined in rats...
December 9, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/29222605/the-endocannabinoid-system-in-cardiovascular-function-novel-insights-and-clinical-implications
#3
REVIEW
Salvador Sierra, Natasha Luquin, Judith Navarro-Otano
RATIONALE: Cardiovascular disease is now recognized as the number one cause of death in the world, and the size of the population at risk continues to increase rapidly. The dysregulation of the endocannabinoid (eCB) system plays a central role in a wide variety of conditions including cardiovascular disorders. Cannabinoid receptors, their endogenous ligands, as well as enzymes conferring their synthesis and degradation, exhibit overlapping distributions in the cardiovascular system. Furthermore, the pharmacological manipulation of the eCB system has effects on blood pressure, cardiac contractility, and endothelial vasomotor control...
December 8, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/29222421/the-transcriptomic-signature-of-disease-development-and-progression-of-nonalcoholic-fatty-liver-disease
#4
Sophie Cazanave, Alexei Podtelezhnikov, Kristian Jensen, Mulugeta Seneshaw, Divya P Kumar, Hae-Ki Min, Prasanna K Santhekadur, Bubu Banini, Adolfo Gabriele Mauro, Abdul M Oseini, Robert Vincent, Keith Q Tanis, Andrea L Webber, Liangsu Wang, Pierre Bedossa, Faridoddin Mirshahi, Arun J Sanyal
A longitudinal molecular model of the development and progression of nonalcoholic fatty liver disease (NAFLD) over time is lacking. We have recently validated a high fat/sugar water-induced animal (an isogenic strain of C57BL/6 J:129S1/SvImJ mice) model of NAFLD that closely mimics most aspects of human disease. The hepatic transcriptome of such mice with fatty liver (8 weeks), steatohepatitis with early fibrosis (16-24 weeks) and advanced fibrosis (52 weeks) after initiation of the diet was evaluated and compared to mice on chow diet...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222092/targeted-disruption-of-the-kcnj5-gene-in-the-female-mouse-lowers-aldosterone-levels
#5
Iris Hardege, Lu Long, Raya Al Maskari, Nicola Figg, Kevin M O'Shaughnessy
Aldosterone is released from adrenal zona glomerulosa cells and plays an important role in Na and K homeostasis. Mutations in the human KCNJ5 gene encoding the GIRK4 potassium channel cause abnormal aldosterone secretion and hypertension. To better understand the role of wild-type (WT) GIRK4 in regulating aldosterone release we have looked at aldosterone secretion in a Kcnj5 knock-out (KO) mouse.  We found that female, but not male, KO mice have reduced aldosterone levels compared to WT female controls, but higher levels of aldosterone after Ang-II stimulation...
December 8, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29212711/ppar%C3%AE-activation-by-bexarotene-promotes-neuroprotection-by-restoring-bioenergetic-and-quality-control-homeostasis
#6
Audrey S Dickey, Dafne N Sanchez, Martin Arreola, Kunal R Sampat, Weiwei Fan, Nicolas Arbez, Sergey Akimov, Michael J Van Kanegan, Kohta Ohnishi, Stephen K Gilmore-Hall, April L Flores, Janice M Nguyen, Nicole Lomas, Cynthia L Hsu, Donald C Lo, Christopher A Ross, Eliezer Masliah, Ronald M Evans, Albert R La Spada
Neurons must maintain protein and mitochondrial quality control for optimal function, an energetically expensive process. The peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors that promote mitochondrial biogenesis and oxidative metabolism. We recently determined that transcriptional dysregulation of PPARδ contributes to Huntington's disease (HD), a progressive neurodegenerative disorder resulting from a CAG-polyglutamine repeat expansion in the huntingtin gene. We documented that the PPARδ agonist KD3010 is an effective therapy for HD in a mouse model...
December 6, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29212212/adamts1-mediated-targeting-of-tsp-1-by-ppar%C3%AE-suppresses-migration-and-invasion-of-breast-cancer-cells
#7
Sun Ah Ham, Taesik Yoo, Won Jin Lee, Jung Seok Hwang, Jinwoo Hur, Kyung Shin Paek, Dae-Seog Lim, Sung Gu Han, Chi-Ho Lee, Han Geuk Seo
Migration and invasion of cancer cells into surrounding tissue is a key stage of cancer metastasis. Here, we show that peroxisome proliferator-activated receptor (PPAR) δ regulates migration and invasion of human breast cancer cells via thrombospondin-1 (TSP-1) and its degrading protease, a disintegrin and metalloprotease domains with thrombospondin motifs 1 (ADAMTS1). Activation of PPARδ by GW501516, a specific ligand for PPARδ, led to marked inhibition in the cell migration and TSP-1 expression of breast cancer...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209111/palmitate-induces-fat-accumulation-by-activating-c-ebp%C3%AE-mediated-g0s2-expression-in-hepg2-cells
#8
Nai-Qian Zhao, Xiao-Yan Li, Li Wang, Zi-Ling Feng, Xi-Fen Li, Yan-Fang Wen, Jin-Xiang Han
AIM: To determine the role of G0/G1 switch gene 2 (G0S2) and its transcriptional regulation in palmitate-induced hepatic lipid accumulation. METHODS: HepG2 cells were treated with palmitate, or palmitate in combination with CCAAT/enhancer binding protein (C/EBP)β siRNA or G0S2 siRNA. The mRNA expression of C/EBPβ, peroxisome proliferator-activated receptor (PPAR)γ and PPARγ target genes (G0S2, GPR81, GPR109A and Adipoq) was examined by qPCR. The protein expression of C/EBPβ, PPARγ, and G0S2 was determined by Western blotting...
November 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29204449/combined-transcriptomic-analysis-revealed-akr1b10-played-an-important-role-in-psoriasis-through-the-dysregulated-lipid-pathway-and-overproliferation-of-keratinocyte
#9
Yunlu Gao, Xuemei Yi, Yangfeng Ding
RNA-seq has enabled in-depth analysis of the pathogenesis of psoriasis on the transcriptomic level, and many biomarkers have been discovered to be related to the immune response, lipid metabolism, and keratinocyte proliferation. However, few studies have combined analysis from various datasets. In this study, we integrated different psoriasis RNA-seq datasets to reveal the pathogenesis of psoriasis through the analysis of differentially expressed genes (DEGs), pathway analysis, and functional annotation. The revealed biomarkers were further validated through proliferation phenotypes...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29203903/structures-of-ppar%C3%AE-complexed-with-lobeglitazone-and-pioglitazone-reveal-key-determinants-for-the-recognition-of-antidiabetic-drugs
#10
Min A Lee, Lingchen Tan, Huiseon Yang, Yeong-Gwan Im, Young Jun Im
Peroxisome proliferator-activator receptor (PPAR) γ is a nuclear hormone receptor that regulates glucose homeostasis, lipid metabolism, and adipocyte function. PPARγ is a target for thiazolidinedione (TZD) class of drugs which are widely used for the treatment of type 2 diabetes. Recently, lobeglitazone was developed as a highly effective TZD with reduced side effects by Chong Kun Dang Pharmaceuticals. To identify the structural determinants for the high potency of lobeglitazone as a PPARγ agonist, we determined the crystal structures of the PPARγ ligand binding domain (LBD) in complex with lobeglitazone and pioglitazone at 1...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29203734/effect-of-pioglitazone-on-insulin-resistance-progression-of-atherosclerosis-and-clinical-course-of-coronary-heart-disease
#11
Olha V Skochko, Igor P Kaidashev
INTRODUCTION: Pioglitazone, a medication of thiazolidinedione group, is capable of triggering the peroxisome proliferator-activated receptors (PPAR-γ). Activation of receptor PPAR-γ regulates carbohydrate and lipid metabolism, immune and inflammatory responses in heart tissues. THE AIM: Our aim was to study the effect of pioglitazone on insulin resistance, the clinical course of atherosclerosis and coronary heart disease (CHD). MATERIALS AND METHODS: The study included 43 patients with coronary artery disease...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29202521/-effects-of-astragalus-polysaccharides-on-adipogenic-differentiation-of-bone-marrow-mesenchymal-stem-cells-in-low-oxygen-environment
#12
Zhiwei Wu, Dan Liu, Yongqi Liu, Na Xue, Chunlu Yan, Yun Su
To study the effect of Astragalus polysaccharide (APS) on adipogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) cultured in hypoxic environment. The optimal APS concentration, which could promote the proliferation of BMSCs, was screened by methyl thiazolyl tetrazolium method. The concentration was used to intervene in BMSCs-induced by adipogenic differentiation fluid growing in different oxygen concentrations (3%, 6%, 10% and 20%). The formation of lipid droplets in the BMSCs-intervened was observed by oil red O staining under the optical microscope...
November 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/29201212/anti-aging-effect-of-fullerenol-on-skin-aging-through-derived-stem-cells-in-a-mouse-model
#13
Wei Li, Ning Li, Bing Sui, Daping Yang
Fullerenol is similar to graphite in terms of structure. In the present study, the anti-aging effect of fullerenol on skin through derived stem cells in a mouse model was assessed and the potential mechanism of fullerenol was investigated. The anti-aging effect of fullerenol effectively inhibited the retention rate of transplanted adipose-derived stem cells and increased the thickness of the dermal portion of skin and collagen ratio in mice. The effect of fullerenol on the proliferation of stem cells was observed...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29201096/antihyperglycemic-effect-of-rosa-damascena-is-mediated-by-ppar-%C3%AE-gene-expression-in-animal-model-of-insulin-resistance
#14
Abbas Mohammadi, Hossein Fallah, Ahmad Gholamhosseinian
Insulin resistance is a condition in which insulin signaling and action are impaired in insulin sensitive tissues and result in hyperglycemia, hyperlipidemia, and type 2 diabetes mellitus. Our previous studies have shown that Rosa damascena has antihyperglycemic effects on diabetic and normal rats. Therefore, we conducted a study to evaluate the effect of this medicinal plant on insulin sensitivity in rats. This study was performed on high fructose diet insulin resistant rats and pioglitazone, an insulin sensitizing drug, was used as a positive control...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29197607/inflammatory-response-modulation-through-a-ppar%C3%AE-agonist-during-surgically-induced-visceral-ischemia-in-an-animal-model
#15
Bianca Pane, Valerio Gazzola, Giovanni Spinella, Paola Bagnato, Federica Grillo, Valerio Gaetano Vellone, Domenico Palombo
BACKGROUND: Ischemia / reperfusion (I/R) injury represents one of the most severe complications in vascular surgery where cross-clamping of the aorta and subsequent visceral ischemia are a recurrent issue. The literature describes a family of nuclear receptors, i.e., peroxisome-proliferator activated receptors (PPARs), in particular PPARγ isoform, which are important modulators of vascular inflammation resulting from I/R injury. The aim of our study is to evaluate how PPARγ agonist administration could reduce local and systemic inflammatory response after I/R injury during aortic supraceliac clamping in animal model...
November 29, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29197071/peroxisome-proliferator-activated-receptor-gamma-agonists-for-preventing-recurrent-stroke-and-other-vascular-events-in-people-with-stroke-or-transient-ischaemic-attack
#16
REVIEW
Jia Liu, Lu-Ning Wang
BACKGROUND: Peroxisome proliferator-activated receptor gamma (PPAR-γ) agonists are insulin-sensitising drugs used for the treatment of insulin resistance. In addition to lowering glucose in diabetes, these drugs may also protect against hyperlipidaemia and arteriosclerosis, which are risk factors for stroke. This is an update of a review first published in January 2014 and subsequently updated in October 2015. OBJECTIVES: To assess the efficacy and safety of PPAR-γ agonists in the secondary prevention of stroke and related vascular events for people with stroke or transient ischaemic attack (TIA)...
December 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29197030/identification-of-key-genes-fluctuated-induced-by-avian-leukemia-virus-alv-j-infection-in-chicken-cells
#17
Guohong Chen, Zhiteng Li, Shuai Su, Guobin Chang, Lingling Qiu, Pengfei Zhu, Yang Zhang, Qi Xu
Avian leukemia subgroup J (ALV-J) is one of the most detrimental neoplastic diseases in poultry production. However, the differences between somatic cells and immune cells post-infection remain poorly understood. The aim of our study was to detect the different responses in chicken to infection with ALV-J in different cell lines. In this study, we detected transcriptome expression changes during infection with ALV-J in chicken embryo fibroblast (CEF) and HD11 cell lines. RNA-Seq was used to determine the expression levels of mRNA transcripts from the two cell types after infection with ALV-J at 1, 4, and 7 dpi, and gene ontology analyses were used to cluster differentially expressed genes into pathways...
December 1, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29195962/safety-evaluations-and-lipid-lowering-activity-of-an-arthrospira-platensis-enriched-diet-a-1-month-study-in-rats
#18
Elisabetta Bigagli, Lorenzo Cinci, Alberto Niccolai, Mario R Tredici, Natascia Biondi, Liliana Rodolfi, Maura Lodovici, Mario D'Ambrosio, Giulia Mori, Cristina Luceri
Arthrospira platensis (A. platensis) is worldwide consumed as dietary supplement, but its use in the form of whole biomass for food purposes may raise toxicity concerns. The aim of this study was to preliminarily evaluate the safety of an A. platensis F&M-C256-enriched diet (20% (weight/weight) corresponding to 12g/kg body weight/day), administered to rats for 1month. A. platensis F&M-C256-enriched diet was well tolerated: behavior, body weight, food consumption and growth curves were not affected; no discomfort, no deaths and no physical signs related to the treatment were observed during the administration period; food daily consumption and apparent digestibility were comparable to those of the standard laboratory AIN-76 control diet...
December 2017: Food Research International
https://www.readbyqxmd.com/read/29193757/effects-of-the-consumption-of-milk-biofortified-with-selenium-vitamin-e-and-different-fatty-acid-profile-on-immune-response-in-the-elderly
#19
Karina Pfrimer, Eduardo Ferriolli, Paula Lumy Takeuchi, Márcia Msv Salles, Arlindo Saran-Netto, Marcus A Zanetti, Luiz C Roma-Junior, Camila Bitu Moreno Braga, Fernanda A Domenici, Yara Ml Valim, Adriana Bp Paschoalato, Larissa F Marchi, Ana Ecs Azzolini, Eduardo A Donadi, Edson Martinez, Helio Vannucchi
SCOPE: Nutrition is a major contributing factor for immunocompetence. The aim was to assess the immune status of older after consuming a milk produced by lactating cows fed with one of the following diets: control diet(C), C+vitaminE+selenium(C+A), C+sunfloweroil(C+O), orC+sunflower oil+vitaminE+selenium(A+O). METHODS AND RESULTS: 60elderly received one of these biofortified milks during 12weeks. Immune response was assessed by measurement of the expression of COX-1,2, MCP-1, PPAR(δ,α and β/δ)genes, neutrophil production of oxygen reactive species induced by immune complexes, neutrophil phagocytosis and lytic activity of the alternative pathway of the complement system and cytokine levels...
November 28, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29190977/ppar-%C3%AE-acutely-inhibits-functional-activity-of-asics-in-rat-dorsal-root-ganglion-neurons
#20
Jing Wu, Jia-Jia Wang, Ting-Ting Liu, Yi-Mei Zhou, Chun-Yu Qiu, Ding-Wen Shen, Wang-Ping Hu
Peroxisome proliferator-activated receptor-α (PPAR-α), a lipid activated transcription factor of nuclear hormone receptor superfamily, can relieve pain through a rapid-response mechanism. However, little is known about the underlying mechanism. Herein, we report that PPAR-α activation acutely inhibits the functional activity of acid-sensing ion channels (ASICs), key sensors for extracellular protons, in rat dorsal root ganglion (DRG) neurons. Pre-application of PPAR-α agonist GW7647 for 2 min decreased the amplitude of proton-gated currents mediated by ASICs in a concentration-dependent manner...
November 3, 2017: Oncotarget
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