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https://www.readbyqxmd.com/read/27911411/preparation-and-in-vivo-use-of-an-activity-based-probe-for-n-acylethanolamine-acid-amidase
#1
Elisa Romeo, Silvia Pontis, Stefano Ponzano, Fabiola Bonezzi, Marco Migliore, Simona Di Martino, Maria Summa, Daniele Piomelli
Activity-based protein profiling (ABPP) is a method for the identification of an enzyme of interest in a complex proteome through the use of a chemical probe that targets the enzyme's active sites. A reporter tag introduced into the probe allows for the detection of the labeled enzyme by in-gel fluorescence scanning, protein blot, fluorescence microscopy, or liquid chromatography-mass spectrometry. Here, we describe the preparation and use of the compound ARN14686, a click chemistry activity-based probe (CC-ABP) that selectively recognizes the enzyme N-acylethanolamine acid amidase (NAAA)...
November 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911087/%C3%AE-amyrin-attenuates-high-fructose-diet-induced-metabolic-syndrome-in-rats
#2
Pankaj Prabhakar, K H Reeta, Subir Kumar Maulik, Amit Kumar Dinda, Yogendra Kumar Gupta
This study investigated the effect of α-amyrin (a pentacyclic triterpene) on high-fructose diet (HFD)-induced metabolic syndrome in rats. Male Wistar rats were randomly distributed into different groups. The control group was fed normal rat chow diet. The HFD group was fed HFD (60%; w/w) for 42 days. Pioglitazone (10 mg/kg, orally, once daily) was used as a standard drug. α-Amyrin was administered in 3 doses (50, 100, and 200 mg/kg, orally, once daily along with HFD). Plasma glucose, total cholesterol, triglycerides, and high-density lipoprotein cholesterol (HDL-C) were estimated...
September 2, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27910744/peroxisome-proliferator-activated-receptor-alpha-ppar%C3%AE-a-key-regulator-of-lipid-metabolism-in-avians
#3
Bahman Navidshad, M Royan
Dietary fatty acids have various effects on cellular metabolism, and many of these effects are carried out through the alteration of the gene expression. Fatty acids upregulate or downregulate the expression of different genes by acting both as agonists or antagonists for nuclear hormone receptors. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear hormone receptor superfamily. To date, three PPAR subtypes, α, β, and γ, have been recognized. PPARs regulate various target genes with a role in intracellular and extracellular lipid metabolism, mainly those involved in peroxisomal β-oxidation...
2016: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/27895698/combinations-of-bio-active-dietary-constituents-affect-human-white-adipocyte-function-in-vitro
#4
Ines Warnke, Johan W E Jocken, Rotraut Schoop, Christine Toepfer, Regina Goralczyk, Joseph Schwager
BACKGROUND: Specific bio-active dietary compounds modulate numerous metabolic processes in adipose tissue (AT), including pre-adipocyte proliferation and differentiation. AT dysfunction, rather than an increased fat mass per se, is strongly associated with the development of insulin resistance and is characterized by impaired adipogenesis, hypertrophic adipocytes, inflammation, and impairments in substrate metabolism. A better understanding of mechanisms underlying AT dysfunction may provide new strategies for the treatment of obesity-associated metabolic diseases...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27818230/effect-of-ppar-%C3%AE-%C3%AE-agonist-gw0742-treatment-in-the-acute-phase-response-and-blood-brain-barrier-permeability-following-brain-injury
#5
Khouloud Chehaibi, Laura le Maire, Sarah Bradoni, Joan Carles Escola, Francisco Blanco-Vaca, Mohamed Naceur Slimane
The systemic response to ischemic stroke is associated with the hepatic acute phase response (APR) that modulates leukocytes recruitment to the injured brain. The inappropriate recruitment of leukocytes to the brain parenchyma can result in blood-brain barrier (BBB) breakdown. Emerging data suggest that peroxisome proliferator-activated receptor beta/delta (PPAR-β/δ) activation has a potential neuroprotective role in ischemic stroke. However, mechanisms of PPAR-β/δ mediated protection in ischemic insults remain unclear...
October 18, 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/27807401/alzheimer-disease-crosstalk-between-the-canonical-wnt-beta-catenin-pathway-and-ppars-alpha-and-gamma
#6
REVIEW
Alexandre Vallée, Yves Lecarpentier
The molecular mechanisms underlying the pathophysiology of Alzheimer's disease (AD) are still not fully understood. In AD, Wnt/beta-catenin signaling has been shown to be downregulated while the peroxisome proliferator-activated receptor (PPAR) gamma (mARN and protein) is upregulated. Certain neurodegenerative diseases share the same Wnt/beta-catenin/PPAR gamma profile, such as bipolar disorder and schizophrenia. Conversely, other NDs share an opposite profile, such as amyotrophic lateral sclerosis, Parkinson's disease, Huntington's disease, multiple sclerosis, and Friedreich's ataxia...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27805817/the-role-of-tgf-beta-and-ppar-alpha-signalling-pathways-in-radiation-response-of-locally-exposed-heart-integrated-global-transcriptomics-and-proteomics-analysis
#7
Vikram Subramanian, Ingar Seemann, Juliane Merl-Pham, Stefanie M Hauck, Fiona Anne Stewart, Michael J Atkinson, Soile Tapio, Omid Azimzadeh
Epidemiological data from patients undergoing radiotherapy for thoracic tumours clearly show the damaging effect of ionising radiation on cardiovascular system. The long-term impairment of heart function and structure after local high-dose irradiation is associated with systemic inflammatory response, contraction impairment, microvascular damage and cardiac fibrosis. The goal of the present study was to investigate molecular mechanisms involved in this process. C57BL/6J mice received a single X-ray dose of 16 Gy given locally to the heart at the age of 8 weeks...
November 2, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27777595/soshiho-tang-aqueous-extract-exerts-antiobesity-effects-in-high-fat-diet-fed-mice-and-inhibits-adipogenesis-in-3t3-l1-adipocytes
#8
Sae-Rom Yoo, Mee-Young Lee, Byoung-Kab Kang, Hyeun-Kyoo Shin, Soo-Jin Jeong
Soshiho-tang (SST; sho-saiko-to in Japanese; xiaochaihu-tang in Chinese) has generally been used to improve liver fibrosis- and cirrhosis-related symptoms in traditional Korean medicine. Although many studies have investigated the pharmacological properties of SST, its antiobesity effect has not been elucidated. Thus, our present study was carried out to evaluate the antiobesity effect of SST using a high fat diet- (HFD) induced obese mouse model and 3T3-L1 adipose cells. C57BL/6J mice were randomly divided into four groups (n = 6/group), normal diet (ND), HFD-fed group, and HFD- and SST-fed groups (S200: 200 mg/kg of SST; S600: 600 mg/kg of SST) and given HFD with or without SST extract for 8 weeks...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27738106/biliverdin-reductase-a-attenuates-hepatic-steatosis-by-inhibition-of-glycogen-synthase-kinase-gsk-3%C3%AE-phosphorylation-of-serine-73-of-peroxisome-proliferator-activated-receptor-ppar-%C3%AE
#9
Terry D Hinds, Katherine A Burns, Peter A Hosick, Lucien McBeth, Andrea Nestor-Kalinoski, Heather A Drummond, Abdulhadi A AlAmodi, Michael W Hankins, John P Vanden Heuvel, David E Stec
Non-alcoholic fatty liver disease is the most rapidly growing form of liver disease and if left untreated can result in non-alcoholic steatohepatitis, ultimately resulting in liver cirrhosis and failure. Biliverdin reductase A (BVRA) is a multifunctioning protein primarily responsible for the reduction of biliverdin to bilirubin. Also, BVRA functions as a kinase and transcription factor, regulating several cellular functions. We report here that liver BVRA protects against hepatic steatosis by inhibiting glycogen synthase kinase 3β (GSK3β) by enhancing serine 9 phosphorylation, which inhibits its activity...
November 25, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27735783/abundance-in-proteins-expressed-after-functional-electrical-stimulation-cycling-or-arm-cycling-ergometry-training-in-persons-with-chronic-spinal-cord-injury
#10
Ashraf S Gorgey, Zachary A Graham, William A Bauman, Christopher Cardozo, David R Gater
STUDY DESIGN: Longitudinal design. OBJECTIVES: The study determined the effects of two forms of exercise training on the abundance of two proteins, (glucose transporter-4 [GLUT-4], adenosine monophosphate kinase [AMPK]) involved in glucose utilization and the transcriptional coactivator that regulates the genes involved in energy metabolism and mitochondrial biogenesis (peroxisome proliferator-activated receptor (PPAR) coactivator 1 alpha [PGC-1α]), in muscles in men with chronic motor-complete spinal cord injury (SCI)...
October 13, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27692168/does-bilirubin-prevent-hepatic-steatosis-through-activation-of-the-ppar%C3%AE-nuclear-receptor
#11
Terry D Hinds, Samuel O Adeosun, Abdulhadi A Alamodi, David E Stec
Several large population studies have demonstrated a negative correlation between serum bilirubin levels and the development of obesity, hepatic steatosis, and cardiovascular disease. Despite the strong correlative data demonstrating the protective role of bilirubin, the mechanism by which bilirubin can protect against these pathologies remains unknown. Bilirubin has long been known as a powerful antioxidant and also has anti-inflammatory actions, each of which may contribute to the protection afforded by increased levels...
October 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27686268/symplocos-cochinchinensis-enhances-insulin-sensitivity-via-the-down-regulation-of-lipogenesis-and-insulin-resistance-in-high-energy-diet-rat-model
#12
Kalathookunnel Antony Antu, Mariam Philip Riya, Anupama Nair, Arvind Mishra, Arvind K Srivastava, Kozhiparambil Gopalan Raghu
ETHNOPHARMACOLOGICAL RELEVANCE: This plant has been utilized in Indian system of medicine for treatment of diabetes. This is clearly evident from the composition of Ayurvedic preparation for diabetes 'Nisakathakadi Kashayam' where this is one of the main ingredients of this preparation. AIM OF THE STUDY: The study aims in elucidating the molecular mechanisms underlying the insulin sensitizing effects of Symplocos cochinchinensis ethanol extract (SCE) using a high fructose and saturated fat (HFS) fed insulin resistant rat model...
September 26, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27592051/ramipril-restores-ppar%C3%AE-%C3%AE-and-ppar%C3%AE-expressions-and-reduces-cardiac-nadph-oxidase-but-fails-to-restore-cardiac-function-and-accompanied-myosin-heavy-chain-ratio-shift-in-severe-anthracycline-induced-cardiomyopathy-in-rat
#13
Hana Cernecka, Gabriel Doka, Jasna Srankova, Lenka Pivackova, Eva Malikova, Kristina Galkova, Jan Kyselovic, Peter Krenek, Jan Klimas
We hypothesized that peroxisome proliferator-activated receptors (PPARs) might be involved in a complex protective action of ACE inhibitors (ACEi) in anthracyclines-induced cardiomyopathy. For purpose of study, we compared effects of ramipril on cardiac dysfunction, cardiac failure markers and PPAR isoforms in moderate and severe chronic daunorubicin-induced cardiomyopathy. Male Wistar rats were administered with a single intravenous injection of daunorubicin: 5mg/kg (moderate cardiomyopathy), or 15mg/kg (severe cardiomyopathy) or co-administered with daunorubicin and ramipril (1mg/kg/d, orally) or vehicle for 8 weeks...
August 31, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27561621/brown-adipose-tissue-updates-in-cellular-and-molecular-biology
#14
REVIEW
Thereza Cristina Lonzetti Bargut, Marcia Barbosa Aguila, Carlos Alberto Mandarim-de-Lacerda
Brown adipose tissue (BAT) is mainly composed of adipocytes, it is highly vascularized and innervated, and can be activated in adult humans. Brown adipocytes are responsible for performing non-shivering thermogenesis, which is exclusively mediated by uncoupling protein (UCP) -1 (a protein found in the inner mitochondrial membrane), the hallmark of BAT, responsible for the uncoupling of the proton leakage from the ATP production, therefore, generating heat (i.e. thermogenesis). Besides UCP1, other compounds are essential not only to thermogenesis, but also to the proliferation and differentiation of BAT, including peroxisome proliferator-activated receptor (PPAR) family, PPARgamma coactivator 1 (PGC1)-alpha, and PRD1-BF-1-RIZ1 homologous domain protein containing protein (PRDM) -16...
October 2016: Tissue & Cell
https://www.readbyqxmd.com/read/27512842/association-between-peroxisome-proliferator-activated-receptor-alpha-delta-and-gamma-polymorphisms-and-risk-of-coronary-heart-disease-a-case-control-study-and-meta-analysis
#15
Yufeng Qian, Peiwei Li, Jinjie Zhang, Yu Shi, Kun Chen, Jun Yang, Yihua Wu, Xianhua Ye
OBJECTIVES: Risk of coronary heart disease (CHD) has been suggested to be associated with polymorphisms of peroxisome proliferator-activated receptors (PPARs), while the results were controversial. We aimed to systematically assess the association between PPAR polymorphisms and CHD risk. METHODS: A case-control study with 446 subjects was conducted to evaluate the association between CHD risk and C161T polymorphism, which was of our special interest as this polymorphism showed different effects on risks of CHD and acute coronary syndrome (ACS)...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27499259/fluoxetine-regulates-cell-growth-inhibition-of-interferon-%C3%AE
#16
Yu-Min Lin, Bu-Chin Yu, Wen-Tai Chiu, Hung-Yu Sun, Yu-Chieh Chien, Hui-Chen Su, Shu-Yang Yen, Hsin-Wen Lai, Chyi-Huey Bai, Kung-Chia Young, Chiung-Wen Tsao
Fluoxetine, a well-known anti-depression agent, may act as a chemosensitizer to assist and promote cancer therapy. However, how fluoxetine regulates cellular signaling to enhance cellular responses against tumor cell growth remains unclear. In the present study, addition of fluoxetine promoted growth inhibition of interferon-alpha (IFN-α) in human bladder carcinoma cells but not in normal uroepithelial cells through lessening the IFN-α-induced apoptosis but switching to cause G1 arrest, and maintaining the IFN-α-mediated reduction in G2/M phase...
October 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27490527/potential-application-of-p-coumaric-acid-on-differentiation-of-c2c12-skeletal-muscle-and-3t3-l1-preadipocytes-an-in-vitro-and-in-silico-approach
#17
Soundharrajan Ilavenil, Da Hye Kim, Srisesharam Srigopalram, Mariadhas Valan Arasu, Kyung Dong Lee, Jeong Chae Lee, Jong Suk Lee, Senthil Renganathan, Ki Choon Choi
Coumaric acid (CA) is a phenolic acid of the hydroxycinnamic acid family, and it has many biological functions such as anti-oxidant, anti-inflammatory, antidiabetic, anti-ulcer, anti-platelet, anti-cancer activities, etc. In the present study, we planned to analyse the potential molecular function of CA on skeletal muscle and preadipocytes differentiation using PCR and Western blot techniques. First, we analysed the impact of CA on C2C12 skeletal muscle differentiation. It revealed that CA treatment inhibited horse serum-induced skeletal muscle differentiation as evidenced by the decreased expression of early myogenic differentiation markers such as Myogenin and myoD via the AMP activated protein kinase- alpha AMPK-α mediated pathway...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27478477/miconia-sp-increases-mrna-levels-of-ppar-gamma-and-inhibits-alpha-amylase-and-alpha-glucosidase
#18
David Mizael Ortíz-Martinez, Catalina Rivas-Morales, Myriam Angelica de la Garza-Ramos, Maria Julia Verde-Star, Maria Adriana Nuñez-Gonzalez, Catalina Leos-Rivas
Diabetes mellitus is a public health problem worldwide. For this reason, ethanolic extract of Miconia sp. from Oaxaca, Mexico, was selected in search of an alternative against this disease. The effect of Miconia sp. on mRNA expression of PPARγ on cell line 3T3-L1, its effect on alpha amylase and alpha glucosidase, lipid accumulation during adipogenesis, and cell viability on VERO cells were evaluated. The mRNA levels of PPARγ increased on 1.393 ± 0.008 folds, lipid accumulation was increased by 29.55% with Miconia sp...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27448535/differences-in-biochemical-and-genetic-biomarkers-in-patients-with-heart-failure-of-various-etiologies
#19
Agata Bielecka-Dabrowa, Agata Sakowicz, Małgorzata Misztal, Stephan von Haehling, Ali Ahmed, Tadeusz Pietrucha, Jacek Rysz, Maciej Banach
BACKGROUND/OBJECTIVES: To evaluate whether biomarkers reflecting pathophysiological pathways and selected single nucleotide polymorphisms differ between patients (pts) with heart failure (HF). METHODS: 110 pts with were involved, including HF pts with preserved ejection fraction (HFpEF, n=51) with hypertensive origin, HF pts with reduced ejection fraction (HFrEF) with ischemic aetiology (ICM) (n=32) and HFrEF with dilated cardiomyopathy (DCM) (n=27). We assessed selected HF biomarkers, echocardiographic examinations and functional polymorphisms selected from six candidate genes: CYP27B1, NOS3, IL-6, TGF beta, TNF alpha, and PPAR gamma...
October 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27424398/-ppars-mediate-the-regulation-of-energy-metabolism-by-long-chain-fatty-acids
#20
REVIEW
Yao Yan, Zong-Bao Wang, Chao-Ke Tang
PPAR-alpha expressed primarily in liver is essential for metabolic adaptation to starvation by inducing genes for beta-oxidation and ketogenesis to increase the utility of LCFAs and fibroblast growth factor 21. PPAR-delta induces genes for LCFA oxidation during fasting and endurance exercise in skeletal muscle. PPAR-delta also regulates glucose metabolism and mitochondrial biogenesis by inducing FOXO1 and PGC1-alpha. PPAR-gamma can induces the pathways to store LCFAs as triglycerides in adipocytes. Adiponectin, another important target of PPAR-gamma may maintain insulin sensitivity between adipocytes...
February 2016: Sheng Li Ke Xue Jin Zhan [Progress in Physiology]
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