27,554 results match your criteria proliferator-activated receptor

Maternal high fructose diet induced early onset retinopathy via the suppression of synaptic plasticity mediated by the mitochondrial dysfunction.

Am J Physiol Endocrinol Metab 2021 May 10. Epub 2021 May 10.

Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Taiwangrid.413804.a.

Retinopathy is a leading cause of blindness, and there is currently no cure. Earlier identification of the progression of retinopathy could provide a better chance for intervention. Diet has profound effects on retinal function. Read More

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Resveratrol Improves Mitochondrial Biogenesis Function and Activates PGC-1α Pathway in a Preclinical Model of Early Brain Injury Following Subarachnoid Hemorrhage.

Front Mol Biosci 2021 22;8:620683. Epub 2021 Apr 22.

Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research, Department of Reproductive Medicine, The First Affiliated Hospital of Hainan Medical University, Haikou, China.

Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) has been shown to play a pivotal role in the regulation of mitochondrial biogenesis in diseases. Resveratrol (RSV), a natural polyphenolic reagent, has powerful antioxidant properties and the ability to scavenge mitochondrial reactive oxygen species (ROS) in a variety of central nervous system diseases. However, the underlying molecular mechanisms of RSV on mitochondrial biogenesis in early brain injury (EBI) following subarachnoid hemorrhage (SAH) remain poorly understood. Read More

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A bioactive fraction of inhibits adipogenesis and inflammation in 3T3-L1 cells via modulation of PPAR-γ/SREBP-1c and TNF-α/IL-6.

3 Biotech 2021 May 23;11(5):233. Epub 2021 Apr 23.

Division of Cell Culture and Molecular Biology, Department of Biochemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh 517502 India.

has huge demand owing to its commercial and medicinal value. However, there are limited research studies on its therapeutic activity against obesity and obesity-induced inflammation and underlying mechanism of action. Therefore, in the present study, chloroform bioactive fraction of (CFP) was isolated and evaluated for its activity against adipogenesis and adipogenesis-induced inflammation in 3T3-L1 cell culture model. Read More

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The effect of omega3 fatty acid supplementation on PPARγ and UCP2 expressions, resting energy expenditure, and appetite in athletes.

BMC Sports Sci Med Rehabil 2021 May 8;13(1):48. Epub 2021 May 8.

Department of Community Nutrition, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.

Background: Omega3 fatty acids as a ligand of energy-related genes, have a role in metabolism, and energy expenditure. These effects are due to changes in the expression of peroxisome proliferator-activated receptor-gamma (PPARγ) and uncoupling protein2 (UCP2). This study evaluated the effect of omega3 supplements on PPARγ mRNA expression and UCP2 mRNA expression and protein levels, as regulators of energy metabolism, resting energy expenditure (REE), and appetite in athletes. Read More

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Neuropeptide Y and its receptors are expressed in chicken skeletal muscle and regulate mitochondrial function.

Gen Comp Endocrinol 2021 May 4:113798. Epub 2021 May 4.

University of Arkansas, Center of Excellence for Poultry Science, Fayetteville, Arkansas 72701. Electronic address:

Neuropeptide Y (NPY) is a highly conserved 36-amino acid neurotransmitter, which is primarily expressed in the mammalian arcuate nucleus of the hypothalamus. It is a potent orexigenic neuropeptide, stimulating appetite and inducing feed intake in a variety of species. Recent research has shown that NPY and its receptors can be expressed by peripheral tissues, but their role is not yet well defined. Read More

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Functional milk fat enriched in conjugated linoleic acid prevented liver lipid accumulation induced by a high-fat diet in male rats.

Food Funct 2021 May 7. Epub 2021 May 7.

Cátedra de Bromatología y Nutrición, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina. and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.

The aim was to investigate the potential effect of functional milk fat (FMF), naturally enriched in conjugated linoleic acid, on the prevention of liver lipid accumulation and some biochemical mechanisms involved in the liver triacylglycerol (TAG) regulation in high-fat (HF) fed rats. Male Wistar rats were fed (60 days) with S7 (soybean oil, 7%) or HF diets: S30 (soybean oil, 30%), MF30 (soybean oil, 3% + milk fat -MF-, 27%) or FMF30 (soybean oil, 3% + FMF, 27%). Nutritional parameters, hepatic fatty acid (FA) composition, liver and serum TAG levels, hepatic TAG secretion rate (TAG-SR), lipoprotein lipase (LPL) activity in adipose tissue and muscle, activities and/or mRNA levels of lipogenic and β-oxidative enzymes, and mRNA levels of transcription factors and FA transport proteins were assessed. Read More

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In-vitro effect of pine bark extract on melanin synthesis, tyrosinase activity, production of endothelin-1 and PPAR in cultured melanocytes exposed to Ultraviolet, Infrared, and Visible light radiation.

J Cosmet Dermatol 2021 May 6. Epub 2021 May 6.

Instituto de Assistência Médica ao Servidor Público Estadual, São Paulo, SP, Brazil.

Background: French maritime pine bark (Pinus pinaster) extract (PBE), the registered trade name of which is Pycnogenol , has been studied for its depigmenting action due to its antioxidant, anti-inflammatory, and anti-melanogenic activity. However, the mechanisms through which PBE are still not fully clear.

Objective: Evaluate the impact of PBE on four in-vitro parameters closely associated with cutaneous pigmentation, including melanin synthesis, tyrosinase activity, endothelin-1 (ED1) and production of peroxisome proliferator-activated receptor α, δ, and γ (PPAR α, δ, and γ), by studying the modulation of action of ultraviolet radiation A (UVA)/ultraviolet radiation B (UVB), infrared-A (IR-A), visible light (VL), and association of UVA/UVB, IR-A, and VL (ASS). Read More

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Curcumin improves adipocytes browning and mitochondrial function in 3T3-L1 cells and obese rodent model.

R Soc Open Sci 2021 Mar 17;8(3):200974. Epub 2021 Mar 17.

Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China.

Accumulating evidence suggests that mitochondrial dysfunction and adipocyte differentiation promote lipid accumulation in the development of obesity and diabetes. Curcumin is an active ingredient extracted from that has been shown to exhibit antioxidant and anti-inflammatory potency in metabolic disorders. However, the underlying mechanisms of curcumin in adipocytes remain largely unexplored. Read More

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Biochanin A Mitigates Atherosclerosis by Inhibiting Lipid Accumulation and Inflammatory Response.

Oxid Med Cell Longev 2020 11;2020:8965047. Epub 2020 Nov 11.

Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032 Anhui, China.

Biochanin A (BCA), a dietary isoflavone extracted from red clover and cabbage, has been shown to antagonize hypertension and myocardial ischemia/reperfusion injury. However, very little is known about its role in atherogenesis. The aim of this study was to observe the effects of BCA on atherosclerosis and explore the underlying mechanisms. Read More

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November 2020

Fenofibrate Exerts Antitumor Effects in Colon Cancer via Regulation of DNMT1 and CDKN2A.

PPAR Res 2021 16;2021:6663782. Epub 2021 Apr 16.

Department of Gastroenterology, Shanghai Tenth People's Hospital Affiliated to Tongji University, Tongji University, School of Medicine, Shanghai 200072, China.

Peroxisome proliferator-activated receptor alpha (PPARA) is the molecular target of fibrates commonly used to treat dyslipidemia and diabetes. Recently, the potential role of PPARA in other pathological conditions, such as cancers, has been recognized. Here, using bioinformatics analysis, we found that PPARA was expressed at relatively low levels in pancancers, and Kaplan-Meier analyses revealed that high PPARA protein expression was correlated with better survival of patients with colon cancer. Read More

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Hydroxychloroquine Potentiates Apoptosis Induced by PPAR Antagonist in 786-O Clear Cell Renal Cell Carcinoma Cells Associated with Inhibiting Autophagy.

PPAR Res 2021 19;2021:6631605. Epub 2021 Apr 19.

Laboratory of Urology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China.

Clear cell renal cell carcinoma (ccRCC) is the major pathological pattern of renal cell carcinoma. The ccRCC cells exhibit a certain degree of inherent drug resistance due to some genetic mutations. In recent years, peroxisome proliferator-activated receptor- (PPAR) antagonists have been reported as a targeted therapeutic drug capable of inducing apoptosis and cell cycle arrest in the ccRCC cell line. Read More

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Fenofibrate (a PPAR-α Agonist) Administered During Ethanol Withdrawal Reverts Ethanol-Induced Astrogliosis and Restores the Levels of Glutamate Transporter in Ethanol-Administered Adolescent Rats.

Front Pharmacol 2021 20;12:653175. Epub 2021 Apr 20.

Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile.

High-ethanol intake induces a neuroinflammatory response, which has been proposed as responsible for the maintenance of chronic ethanol consumption. Neuroinflammation decreases glutamate transporter (GLT-1) expression, increasing levels of glutamate that trigger dopamine release at the corticolimbic reward areas, driving long-term drinking behavior. The activation of peroxisome proliferator-activated receptor alpha (PPARα) by fibrates inhibits neuroinflammation, in models other than ethanol consumption. Read More

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Is the Mitochondrial Function of Keloid Fibroblasts Affected by Cytoglobin?

Malays J Med Sci 2021 Apr 21;28(2):39-47. Epub 2021 Apr 21.

Department of Biochemistry & Molecular Biology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.

Background: A keloid is a benign skin tumour characterised by excessive proliferation of fibroblasts, a process that requires a sufficient amount of energy. The energy needs are associated with adequate oxygen (O) flow and well-functioning mitochondria. It is known that cytoglobin (CYGB) has a function in O distribution. Read More

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Long Non-Coding RNA CASC2 Overexpression Ameliorates Sepsis-Associated Acute Kidney Injury by Regulating MiR-545-3p/PPARA axis.

J Surg Res 2021 May 3;265:223-232. Epub 2021 May 3.

Department of orthopedics, Chengdu Second People's Hospital; Sichuau, China. Electronic address:

Background: Long non-coding RNAs (lncRNAs) have been demonstrated to be involved in the progression of sepsis-induced acute kidney injury (AKI). In this study, we aimed to explore the functions of lncRNA cancer susceptibility candidate 2 (CASC2) in sepsis-induced AKI.

Methods: The sepsis cell models were established by exposing HK2 and HEK293 cells into lipopolysaccharide (LPS). Read More

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Gestational high-fat diet impaired demethylation of Pparα and induced obesity of offspring.

J Cell Mol Med 2021 May 6. Epub 2021 May 6.

The Key Laboratory of Reproductive Genetics (Zhejiang University School of Medicine), Ministry of Education, Hangzhou, China.

Gestational and postpartum high-fat diets (HFDs) have been implicated as causes of obesity in offspring in later life. The present study aimed to investigate the effects of gestational and/or postpartum HFD on obesity in offspring. We established a mouse model of HFD exposure that included gestation, lactation and post-weaning periods. Read More

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SIRT7 regulates lipogenesis in adipocytes through deacetylation of PPARγ2.

J Diabetes Investig 2021 May 6. Epub 2021 May 6.

Department of Medical Biochemistry, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.

Aims /introduction: Peroxisome proliferator-activated receptor (PPAR)-γ2 is a transcription factor crucial for regulating adipogenesis and glucose/lipid metabolism, and synthetic PPARγ ligands, such as thiazolidinediones, are effective oral medication for type 2 diabetes. Sirtuin 7 (SIRT7), a nicotinamide adenine dinucleotide-dependent deacetylase, also controls metabolism. However, it is not known whether SIRT7 regulates the function of PPARγ2 by its deacetylation. Read More

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No Relevant Pharmacokinetic Drug-Drug Interaction Between the Sodium-Glucose Co-Transporter-2 Inhibitor Empagliflozin and Lobeglitazone, a Peroxisome Proliferator-Activated Receptor-γ Agonist, in Healthy Subjects.

Drug Des Devel Ther 2021 28;15:1725-1734. Epub 2021 Apr 28.

Department of Clinical Pharmacology and Therapeutics, Chungbuk National University College of Medicine and Hospital, Cheongju, Republic of Korea.

Purpose: Combination therapy with insulin-independent sodium-glucose cotransporter 2 inhibitors and thiazolidinedione drugs, such as lobeglitazone, has been reported to elicit potential additive efficacy in glycemic control in type 2 diabetes mellitus. This study was conducted to evaluate the pharmacokinetic (PK) drug-drug interactions between empagliflozin and lobeglitazone in healthy subjects.

Subjects And Methods: A randomized, open-label, multiple-dose study was conducted in 30 healthy subjects using a three-treatment, six-sequence, three-way crossover design. Read More

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PPARɣ drives IL-33-dependent ILC2 pro-tumoral functions.

Nat Commun 2021 05 5;12(1):2538. Epub 2021 May 5.

Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland.

Group 2 innate lymphoid cells (ILC2s) play a critical role in protection against helminths and in diverse inflammatory diseases by responding to soluble factors such as the alarmin IL-33, that is often overexpressed in cancer. Nonetheless, regulatory factors that dictate ILC2 functions remain poorly studied. Here, we show that peroxisome proliferator-activated receptor gamma (PPARγ) is selectively expressed in ILC2s in humans and in mice, acting as a central functional regulator. Read More

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[Doxorubicin directly induced fibrotic change of cardiac fibroblasts].

Nihon Yakurigaku Zasshi 2021 ;156(3):146-151

Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine.

Doxorubicin (DOX)-induced cardiomyopathy has a poor prognosis. No early detection or effective treatment methods are available in clinical. The mechanisms of cardiotoxicity were considered as oxidative stress and apoptosis in cardiomyocytes. Read More

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Effects of KY-903, a Novel Tetrazole-Based Peroxisome Proliferator-Activated Receptor γ Modulator, in Male Diabetic Mice and Female Ovariectomized Rats.

Biol Pharm Bull 2021 ;44(5):659-668

R&D Division, Kyoto Pharmaceutical Industries, Ltd.

Peroxisome proliferator-activated receptor γ (PPARγ) modulators are expected to exert anti-diabetic effects without PPARγ-related adverse effects, such as fluid retention, weight gain, and bone loss. The present study showed that the novel tetrazole derivative KY-903 exerted similar selective PPARγ partial agonist properties to INT-131, a known PPARγ modulator, in transactivation assays, and decreased plasma glucose and triglyceride levels with increases in adiponectin levels in diabetic KK-Ay mice. These effects were similar to those of pioglitazone. Read More

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January 2021

Effects of pemafibrate on glucose metabolism markers and liver function tests in patients with hypertriglyceridemia: a pooled analysis of six phase 2 and phase 3 randomized double-blind placebo-controlled clinical trials.

Cardiovasc Diabetol 2021 May 4;20(1):96. Epub 2021 May 4.

Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi, 329-0498, Japan.

Background: Increased risk of cardiovascular events is associated not only with dyslipidemias, but also with abnormalities in glucose metabolism and liver function. This study uses pooled analysis to explore the in-depth effects of pemafibrate, a selective peroxisome proliferator-activated receptor α modulator (SPPARMα) already known to decrease elevated triglycerides, on glucose metabolism and liver function in patients with hypertriglyceridemia.

Methods: We performed a post-hoc analysis of six phase 2 and phase 3 Japanese randomized double-blind placebo-controlled trials that examined the effects of daily pemafibrate 0. Read More

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PPARs and Tumor Microenvironment: The Emerging Roles of the Metabolic Master Regulators in Tumor Stromal-Epithelial Crosstalk and Carcinogenesis.

Cancers (Basel) 2021 Apr 29;13(9). Epub 2021 Apr 29.

Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore.

Peroxisome proliferator-activated receptors (PPARs) have been extensively studied for more than three decades. Consisting of three isotypes, PPARα, γ, and β/δ, these nuclear receptors are regarded as the master metabolic regulators which govern many aspects of the body energy homeostasis and cell fate. Their roles in malignancy are also increasingly recognized. Read More

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Facilitates ErbB2-Mammary Adenocarcinoma in Mice.

Cancers (Basel) 2021 Apr 30;13(9). Epub 2021 Apr 30.

Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA 19096, USA.

HER2, which is associated with clinically aggressive disease, is overexpressed in 15-20% of breast cancers (BC). The host immune system participates in the therapeutic response of HER2 breast cancer. Identifying genetic programs that participate in ErbB2-induced tumors may provide the rational basis for co-extinction therapeutic approaches. Read More

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From Food to Genes: Transcriptional Regulation of Metabolism by Lipids and Carbohydrates.

Nutrients 2021 Apr 30;13(5). Epub 2021 Apr 30.

Instituto de Investigación Biomédica de Málaga (IBIMA), E-29071 Málaga, Spain.

Lipids and carbohydrates regulate gene expression by means of molecules that sense these macronutrients and act as transcription factors. The peroxisome proliferator-activated receptor (PPAR), activated by some fatty acids or their derivatives, and the carbohydrate response element binding protein (ChREBP), activated by glucose-derived metabolites, play a key role in metabolic homeostasis, especially in glucose and lipid metabolism. Furthermore, the action of both factors in obesity, diabetes and fatty liver, as well as the pharmacological development in the treatment of these pathologies are indeed of high relevance. Read More

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Novel antiadipogenic effect of menadione in 3T3-L1 cells.

Chem Biol Interact 2021 May 1:109491. Epub 2021 May 1.

Instituto de Investigaciones Bioquímicas de Bahía Blanca, Universidad Nacional Del Sur (UNS)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Bahía Blanca, Argentina. Departamento de Biología, Bioquímica y Farmacia, UNS, Bahía Blanca, Argentina. Electronic address:

Inhibition of adipocyte differentiation can be used as a strategy for preventing adipose tissue expansion and, consequently, for obesity management. Since reactive oxygen species (ROS) have emerged as key modulators of adipogenesis, the effect of menadione (a synthetic form of vitamin K known to induce the increase of intracellular ROS) on 3T3-L1 preadipocyte differentiation was studied. Menadione (15 μM) increased ROS and lipid peroxidation, generating mild oxidative stress without affecting cell viability. Read More

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Adipose triglyceride lipase protects renal cell endocytosis in a Drosophila dietary model of chronic kidney disease.

PLoS Biol 2021 May 4;19(5):e3001230. Epub 2021 May 4.

Physiology and Metabolism Laboratory, The Francis Crick Institute, London, United Kingdom.

Obesity-related renal lipotoxicity and chronic kidney disease (CKD) are prevalent pathologies with complex aetiologies. One hallmark of renal lipotoxicity is the ectopic accumulation of lipid droplets in kidney podocytes and in proximal tubule cells. Renal lipid droplets are observed in human CKD patients and in high-fat diet (HFD) rodent models, but their precise role remains unclear. Read More

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Potential Therapeutic Targets of Obesity-Related Glomerulopathy.

Metab Syndr Relat Disord 2021 May 3. Epub 2021 May 3.

Department of Endocrinology, Baoding NO.1 Central Hospital, Baoding, Hebei, People's Republic of China.

The global increase of obesity parallels the obesity-related glomerulopathy (ORG) epidemic. The purpose of this review is to emphasize the potential therapeutic targets of ORG as well as the corresponding possible mechanisms. We systematically identified surveys, reports, and published studies that included data for the purpose of this review and did literature analysis. Read More

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Visceral-to-subcutaneous fat ratio independently predicts the prognosis of locally advanced gastric cancer----- highlighting the role of adiponectin receptors and PPARα, β/ δ, ɤ.

Eur J Surg Oncol 2021 Apr 26. Epub 2021 Apr 26.

Department of Surgery, Chang Gung Memorial Hospital, Linkou & Chang Gung University, Taiwan. Electronic address:

Background: Results of computed tomography body composition (CTBC) predicting long-term outcomes of gastric cancer have been mixed and the plausible mechanism remains elusive.

Methods: We retrospectively enrolled a cohort of stage III gastric cancer who had undergone curative-intent gastrectomy. Clinicopathological variables, preoperative CTBC including abdominal muscle, subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT), and nutritional and inflammatory index were taken together to construct prognostic analysis. Read More

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Effects of Treadmill Exercise on the Expression Level of BAX, BAD, BCL-2, BCL-XL, TFAM, and PGC-1α in the Hippocampus of Thimerosal-Treated Rats.

Neurotox Res 2021 May 3. Epub 2021 May 3.

Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.

Thimerosal (THIM) induces neurotoxic changes including neuronal death and releases apoptosis inducing factors from mitochondria to cytosol. THIM alters the expression level of factors involved in apoptosis. On the other hand, the anti-apoptotic effects of exercise have been reported. Read More

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Nonalcoholic Fatty Liver Disease Development in Zebrafish upon Exposure to Bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate, a Novel Brominated Flame Retardant.

Environ Sci Technol 2021 May 2. Epub 2021 May 2.

State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.

Bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate (TBPH), a novel brominated flame retardant, can potentially cause lipid metabolism disorder; however, its biological effects on lipid homeostasis remain unknown. We investigated its ability to cause nonalcoholic fatty liver disease (NAFLD) in zebrafish. Female zebrafish were fed a high-fat diet (HFD, 24% crude fat) or normal diet (ND, 6% crude fat), and exposed to TBPH (0. Read More

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