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https://www.readbyqxmd.com/read/29455954/the-peroxisome-proliferator-activated-receptor-%C3%AE-is-dispensable-for-cold-induced-adipose-tissue-browning-in-mice
#1
Merel Defour, Wieneke Dijk, Philip Ruppert, Emmani B M Nascimento, Patrick Schrauwen, Sander Kersten
OBJECTIVE: Chronic cold exposure causes white adipose tissue (WAT) to adopt features of brown adipose tissue (BAT), a process known as browning. Previous studies have hinted at a possible role for the transcription factor Peroxisome Proliferator-Activated Receptor alpha (PPARα) in cold-induced browning. Here we aimed to investigate the importance of PPARα in driving transcriptional changes during cold-induced browning in mice. METHODS: Male wildtype and PPARα-/- mice were housed at thermoneutrality (28 °C) or cold (5 °C) for 10 days...
February 9, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29433142/ppar-%C3%AE-agonist-improves-hyperglycemia-induced-oxidative-stress-in-pancreatic-cells-by-potentiating-antioxidant-defense-system
#2
Habib Yaribeygi, Mohammad Taghi Mohammadi, Amirhossein Sahebkar
BACKGROUND: Diabetes-induced oxidative stress has an essential role in pancreatic cells dysfunction. The present study aimed to evaluate whether peroxisome proliferator activated receptor- alpha (PPAR-α) induction by fenofibrate counterbalances oxidative stress in pancreatic cells. METHODS: In this in vivo study, male Wistar rats were randomly divided into four groups as normal, normal treated, diabetic and diabetic treated groups (n=6 in each group). Diabetes was induced by a single intravenous injection of streptozotocin (45 mg/kg)...
February 12, 2018: Drug Research
https://www.readbyqxmd.com/read/29424317/novel-hypolipidaemic-drugs-mechanisms-of-action-and-main-metabolic-effects
#3
Theodosios D Filippatos, Angelos Liontos, Eliza C Christopoulou, Moses S Elisaf
Over the last 3 decades, hypolipidaemic treatment has significantly reduced both cardiovascular (CV) risk and events, with statins being the cornerstone of this achievement. Nevertheless, residual CV risk and unmet goals in hypolipidaemic treatment make novel options necessary. Recently marketed monoclonal antibodies against proprotein convertase subtilisin/kexin type 9 (PCSK9) have shown the way towards innovation, while other ways of PCSK9 inhibition like small interfering RNA (Inclisiran) are already being tested...
February 8, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29422939/associations-between-fatty-acid-oxidation-hepatic-mitochondrial-function-and-plasma-acylcarnitine-levels-in-mice
#4
Bodil Bjørndal, Eva Katrine Alterås, Carine Lindquist, Asbjørn Svardal, Jon Skorve, Rolf K Berge
Background: The 4-thia fatty acid tetradecylthiopropionic acid (TTP) is known to inhibit mitochondrial β-oxidation, and can be used as chemically induced hepatic steatosis-model in rodents, while 3-thia fatty acid tetradecylthioacetic acid (TTA) stimulates fatty acid oxidation through activation of peroxisome proliferator activated receptor alpha (PPARα). We wished to determine how these two compounds affected in vivo respiration and mitochondrial efficiency, with an additional goal to elucidate whether mitochondrial function is reflected in plasma acylcarnitine levels...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29416636/pathway-focused-pcr-array-profiling-of-cal-27-cell-with-over-expressed-znf750
#5
Li Pan, Hongli Yang, Wenqiang Tang, Cong Xu, Shuangfeng Chen, Zhen Meng, Keyi Li, Haiying Chen
Zinc-finger protein 750 (ZNF750) is the potential anti-cancer gene in oral squamous cell carcinoma (OSCC). The present study was to investigate the expression changes of ZNF750 in OSCC tissue and to reveal the induction of altered mRNA expression profiles caused by over-expressed ZNF750 in CAL-27 cell. The expression level of ZNF750 in tissue specimens from OSCC patients was detected by immunohistochemistry. Gene expression profiling was performed using Human Signal Transduction PathwayFinder RT 2 Profiler™ PCR Array...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29409330/bifidobacteria-and-its-rice-fermented-products-on-diet-induced-obese-mice-analysis-of-physical-status-serum-profile-and-gene-expressions
#6
M Ray, P K Hor, D Ojha, J P Soren, S N Singh, K C Mondal
Obesity is highly correlated with the dysbiosis of intestinal microbiota, and bifidobacteria are one of the soft targets of this metabolic syndrome. The aim of this study is to evaluate the efficacy of Bifidobacterium sp. MKK4 and rice-based fermented foods on physical, haematological, gut microbiota and lypogenic-lypolytic marker genes in diet-induced obese mice. Adult male mice (21±0.7 g) were randomly divided into four groups (n=10) according to the type of diet: normal diet (ND), high fat diet (HFD), HFD supplemented with Bifidobacterium sp...
February 7, 2018: Beneficial Microbes
https://www.readbyqxmd.com/read/29404484/the-selective-peroxisome-proliferator-activated-receptor-delta-agonist-seladelpar-reverses-nonalcoholic-steatohepatitis-pathology-by-abrogating-lipotoxicity-in-diabetic-obese-mice
#7
Fahrettin Haczeyni, Hans Wang, Vanessa Barn, Auvro R Mridha, Matthew M Yeh, W Geoffrey Haigh, George N Ioannou, Yun-Jung Choi, Charles A McWherter, Narcissus C-H Teoh, Geoffrey C Farrell
Lipotoxicity associated with insulin resistance is central to nonalcoholic steatohepatitis (NASH) pathogenesis. To date, only weight loss fully reverses NASH pathology, but mixed peroxisome proliferator-activated receptor-alpha/delta (PPAR-α/δ) agonists show some efficacy. Seladelpar (MBX-8025), a selective PPAR-δ agonist, improves atherogenic dyslipidemia. We therefore used this agent to test whether selective PPAR-δ activation can reverse hepatic lipotoxicity and NASH in an obese, dyslipidemic, and diabetic mouse model...
September 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29402275/acute-administration-of-beta-caryophyllene-prevents-endocannabinoid-system-activation-during-transient-common-carotid-artery-occlusion-and-reperfusion
#8
Laura Poddighe, Gianfranca Carta, Maria Pina Serra, Tiziana Melis, Marianna Boi, Sara Lisai, Elisabetta Murru, Laura Muredda, Maria Collu, Sebastiano Banni, Marina Quartu
BACKGROUND: The transient global cerebral hypoperfusion/reperfusion achieved by induction of Bilateral Common Carotid Artery Occlusion followed by Reperfusion (BCCAO/R) has been shown to stimulate early molecular changes that can be easily traced in brain tissue and plasma, and that are indicative of the tissue physiological response to the reperfusion-induced oxidative stress and inflammation. The aim of the present study is to probe the possibility to prevent the molecular changes induced by the BCCAO/R with dietary natural compounds known to possess anti-inflammatory activity, such as the phytocannabinoid beta-caryophyllene (BCP)...
February 5, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29388342/oleoylethanolamide-induced-anorexia-in-rats-is-associated-with-locomotor-impairment
#9
Shahana Fedele, Myrtha Arnold, Jean-Philippe Krieger, Bernd Wolfstädter, Urs Meyer, Wolfgang Langhans, Abdelhak Mansouri
The endogenous peroxisome proliferator-activated receptor alpha (PPAR-α) agonist Oleoylethanolamide (OEA) inhibits eating in rodents, mainly by delaying the onset of meals. The underlying mechanisms of OEA-induced anorexia, however, remain unclear. Animals treated with high OEA doses were shown to display signs of discomfort and impaired locomotion. Therefore, we first examined whether the impaired locomotion may contribute to OEA's anorectic effect. Second, it is controversial whether abdominal vagal afferents are necessary for OEA's anorectic effect...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29385062/a-randomized-double-blinded-placebo-controlled-trial-investigating-the-effect-of-fish-oil-supplementation-on-gene-expression-related-to-insulin-action-blood-lipids-and-inflammation-in-gestational-diabetes-mellitus-fish-oil-supplementation-and-gestational-diabetes
#10
Mehri Jamilian, Mansooreh Samimi, Naghmeh Mirhosseini, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Mohsen Taghizadeh, Zatollah Asemi
Gestational diabetes mellitus (GDM) is a common complication of pregnancy, and it is mostly associated with postpartum diabetes, insulin resistance, and dyslipidemia. Fish oil (omega-3) supplementation has been shown to reduce the risk of different chronic diseases such as cardiovascular disease, type 2 diabetes, and cancers, though the evidence of its impact on gestational diabetes is scarce. Our goal in this study was to determine the effect of fish oil administration on gene expression related to insulin action, blood lipids, and inflammation in women with GDM...
January 31, 2018: Nutrients
https://www.readbyqxmd.com/read/29377597/a-phytol-enriched-diet-activates-ppar%C3%AE-in-the-liver-and-brown-adipose-tissue-to-ameliorate-obesity-induced-metabolic-abnormalities
#11
Ji-Yeong An, Huei-Fen Jheng, Hiroyuki Nagai, Kohei Sanada, Haruya Takahashi, Mari Iwase, Natsumi Watanabe, Young-Il Kim, Aki Teraminami, Nobuyuki Takahashi, Rieko Nakata, Hiroyasu Inoue, Shigeto Seno, Hideo Mastuda, Teruo Kawada, Tsuyoshi Goto
SCOPE: Peroxisome proliferator-activated receptor alpha (PPARα) is a ligand-activated transcription factor that regulates lipid and carbohydrate metabolism. We investigated the effects of naturally occurring PPARα agonists, phytol, and its metabolite phytanic acid, on obesity-induced metabolic disorders using a mouse model. METHODS AND RESULTS: A luciferase reporter assay showed that phytanic acid potently activated PPARα among PPAR subtypes. In high fat diet-induced severe obese mice, a phytol-enriched diet increased phytanic acid levels in the liver and adipose tissue, where PPARα is abundantly expressed...
January 27, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29369787/the-influence-of-peroxisome-proliferator-activated-receptor-%C3%AE-ppar%C3%AE-ligands-on-cancer-cell-tumorigenicity
#12
REVIEW
Saghar Yousefnia, Sara Momenzadeh, Farzad Seyed Forootan, Kamran Ghaedi, Mohammad Hossein Nasr Esfahani
Peroxisome proliferator-activated receptor γ (PPARγ) belongs to the nuclear receptor superfamily of PPARs (PPARα, PPARβ/δ, PPARγ). Numerous studies have concentrated on the key role of PPARs in inflammation and a variety of cancers which include prostate, breast, glioblastoma, neuroblastoma, pancreatic, hepatic, leukemia, and bladder and thyroid tumors. This review, specifically deals with anti-tumor and tumorigenicity effects of PPARγ and its natural and synthetic agonists including Troglitazone, Cladosporol A, B, 15-Deoxi-Δ12-14-Prostaglondin J2 (15-d-PGJ2), Ciglitazon, docosahexaenoic acid, eicosapentaenoic acid Alpha-eleostreac acid, Amorfrutin C, Sphingosine 1-phosphate, Evodiamine, Excavatolide B vs respected antagonists as GW9662, bisphenol-A-diglycidyl-ether...
January 21, 2018: Gene
https://www.readbyqxmd.com/read/29367637/rosmarinic-acid-attenuates-cardiac-fibrosis-following-long-term-pressure-overload-via-ampk%C3%AE-smad3-signaling
#13
Xin Zhang, Zhen-Guo Ma, Yu-Pei Yuan, Si-Chi Xu, Wen-Ying Wei, Peng Song, Chun-Yan Kong, Wei Deng, Qi-Zhu Tang
Agonists of peroxisome proliferator-activated receptor gamma (PPAR-γ) can activate 5' AMP-activated protein kinase alpha (AMPKα) and exert cardioprotective effects. A previous study has demonstrated that rosmarinic acid (RA) can activate PPAR-γ, but its effect on cardiac remodeling remains largely unknown. Our study aimed to investigate the effect of RA on cardiac remodeling and to clarify the underlying mechanism. Mice were subjected to aortic banding to generate pressure overload induced cardiac remodeling and then were orally administered RA (100 mg/kg/day) for 7 weeks beginning 1 week after surgery...
January 24, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29359480/the-effects-of-fish-oil-on-gene-expression-in-patients-with-polycystic-ovary-syndrome
#14
Elham Rahmani, Mehri Jamilian, Bahareh Dadpour, Zahra Nezami, Zahra Vahedpoor, Samaneh Mahmoodi, Esmat Aghadavod, Mohsen Taghizadeh, Abolfazl Beiki Hassan, Zatollah Asemi
BACKGROUND: This study was conducted to determine the effects of fish oil administration on gene expression related to insulin, lipid and inflammation in women with polycystic ovary syndrome (PCOS). MATERIALS AND METHODS: This randomized, double-blind, placebo-controlled trial was conducted among 40 subjects with PCOS, aged 18-40 years old. Subjects were randomly allocated into two groups to take either 1000 mg omega-3 fatty acids from fish oil (n=20) or placebo (n=20) twice a day for 12 weeks...
January 23, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29334664/methyl-dehydroabietate-counters-high-fat-diet-induced-insulin-resistance-and-hepatic-steatosis-by-modulating-peroxisome-proliferator-activated-receptor-signaling-in-mice
#15
Hiroki Yoshioka, Yuki Mizuno, Tomohiro Yamaguchi, Yoshimi Ichimaru, Koichi Takeya, Yukio Hitotsuyanagi, Tsunemasa Nonogaki, Yutaka Aoyagi
The aim of this study was to investigate the therapeutic effects of methyl dehydroabietate (mDA) on adipocyte differentiation in 3T3-L1 preadipocytes and obesity characteristics induced by high-fat diet (HFD) in mice. Adipocyte differentiation in 3T3-L1 cells was evaluated after 14 days of incubation with mDA. mDA enhanced adipocyte differentiation in 3T3-L1 cells. For the in vivo evaluation, five-week-old male C57BL/6J mice were fed HFD or normal CE-2 diet (control) for eight weeks. During the experimental period, mice were administered mDA (50 mg/kg, p...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29306057/the-effects-of-omega-3-and-vitamin-e-co-supplementation-on-parameters-of-mental-health-and-gene-expression-related-to-insulin-and-inflammation-in-subjects-with-polycystic-ovary-syndrome
#16
Mehri Jamilian, Azadeh Shojaei, Mansooreh Samimi, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Maryam Karamali, Mohsen Taghizadeh, Hamidreza Jamilian, Somayeh Alaeinasab, Sadegh Jafarnejad, Zatollah Asemi
OBJECTIVE: The aim of this study was to evaluate the effects of omega-3 and vitamin E co-supplementation on parameters of mental health and gene expression related to insulin and inflammation in subjects with polycystic ovary syndrome (PCOS). METHODS: Forty PCOS women were allocated into two groups and treated with 1000mg omega-3 fatty acids plus 400 IU vitamin E supplements (n = 20) or placebo (n = 20) per day for 12 weeks. Parameters of mental health were recorded at baseline and after the 12-week intervention...
December 28, 2017: Journal of Affective Disorders
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
#17
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/29188895/supplementation-of-mussel-peptides-reduces-aging-phenotype-lipid-deposition-and-oxidative-stress-in-d-galactose-induce-aging-mice
#18
Y Zhou, Q Xu, Y Dong, S Zhu, S Song, S Sun
OBJECTIVES: Aging is associated with glucose and lipid metabolism disorder. We aimed to examine the effects of mussel peptides on protecting against aging by regulating glucose and lipid metabolism. METHODS: For the aging model, d-galactose (200 mg/kg) was administered subcutaneously to 8-month-old mice for 8 weeks. Mussel peptides (1,000 mg/kg) were simultaneously administered by intragastric gavage. The glucose and lipid metabolism profiles, aging phenotype and peroxisome proliferator-activated receptors (PPARs) expression in the liver and adipose tissue of ICR mice were measured...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29187823/voluntary-exercise-improves-cardiac-function-and-prevents-cardiac-remodeling-in-a-mouse-model-of-dilated-cardiomyopathy
#19
Robin Deloux, Damien Vitiello, Nathalie Mougenot, Philippe Noirez, Zhenlin Li, Mathias Mericskay, Arnaud Ferry, Onnik Agbulut
Objective: Despite the indubitable beneficial effect of exercise to prevent of cardiovascular diseases, there is still a lack of studies investigating the impact of exercise in non-ischemic dilated cardiomyopathy. Here, we investigated the impact of voluntary exercise on cardiac function in a mouse model of non-ischemic dilated cardiomyopathy (αMHC-MerCreMer:Sf/Sf), induced by cardiac-specific inactivation of the Serum Response Factor. Materials and Methods: Seven days after tamoxifen injection, 20 αMHC-MerCreMer:Sf/Sf mice were assigned to sedentary (n = 8) and exercise (n = 12) groups...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29183206/fibrates-in-the-management-of-atherogenic-dyslipidemia
#20
Bogusław Okopień, Lukasz Buldak, Aleksandra Bołdys
Significant advancements in the treatment of hypercholesterolemia have recently been achieved. However, a considerable level of residual cardiovascular risk still affects patients' outcomes. Atherogenic dyslipidemia is one of the major constituents of residual risk. Fibrates, PPAR alpha agonists, which modify lipid profile and have numerous pleiotropic effects, seem to be drugs of choice in patients with atherogenic dyslipidemia. These drugs are effective both in monotherapy and combined therapy with statins...
December 2017: Expert Review of Cardiovascular Therapy
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