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https://www.readbyqxmd.com/read/28393192/cyclosporine-a-attenuates-cardiac-dysfunction-induced-by-sepsis-via-inhibiting-calcineurin-and-activating-ampk-signaling
#1
Jingmiao Liu, Da Chen, Xiaowei Liu, Zhi Liu
The aim of the present study was to investigate whether cyclosporine A (CSA) improved cardiac dysfunction at an early stage of sepsis. Male Wistar rats were randomly divided into the following three groups: the sham‑operated control group, the cecal ligation puncture (CLP) procedure‑induced sepsis group and the CSA intervention group. Cecal ligation was performed to generate a sepsis model. At different time points (2, 6, 12, 24 and 72 h) following sepsis induction, blood pressure, cardiac function, and non‑esterified free fatty acid (NEFA) levels in the plasma and myocardia were measured, and the expression levels of components associated with the AMP‑activated protein kinase (AMPK)‑acetyl CoA carboxylase (ACC)‑carnitine palmitoyl transferase 1 (CPT1) signaling pathway were compared among the three groups...
March 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28392417/pharmacological-inhibition-of-carnitine-palmitoyltransferase-1-restores-mitochondrial-oxidative-phosphorylation-in-human-trifunctional-protein-deficient-fibroblasts
#2
Bruno Lefort, Elodie Gouache, Cécile Acquaviva, Marine Tardieu, Jean François Benoist, Jean-François Dumas, Stéphane Servais, Stéphan Chevalier, Christine Vianey-Saban, François Labartheh
BACKGROUND: Mitochondrial Trifunctional Protein deficiency (TFPD) is a severe genetic disease characterized by altered energy metabolism and accumulation of long-chain (LC) acylcarnitines in blood and tissues. This accumulation could impair the mitochondrial oxidative phosphorylation (OxPhos), contributing to the non-optimal outcome despite conventional diet therapy with medium-chain triglycerides (MCT). METHOD: Acylcarnitine and OxPhos parameters were measured in TFPD-fibroblasts obtained from 8 children and cultured in medium mimicking fasting (LCFA) or conventional treatment (MCT), with or without Etomoxir (ETX) an inhibitor of carnitine palmitoyltransferase 1 (CPT1) activity, and were compared to results obtained with fibroblasts from 5 healthy-control children...
April 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28339706/differential-proliferation-and-metabolic-activity-of-sertoli-cells-in-the-testes-of-broiler-and-layer-breeder-chickens
#3
Mélanie Faure, Edith Guibert, Sabine Crochet, Pascal Chartrin, Jean-Pierre Brillard, Anne Collin, Pascal Froment
Decades of genetic selection have generated 2 different, highly specialized types of chickens in which 1 type, known as the layer-type chicken, expresses high laying performance while the other type, known as the broiler-type chicken, is dedicated to the production of fast-growing birds. Selected lines for the latter type often express disorders in their reproductive performance including early sexual maturation and accelerated, non-reversible seasonal decline of their semen production and mating behavior. The aim of the present study was to characterize some metabolic markers of the Sertoli cell populations...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28330968/examination-of-carnitine-palmitoyl-transferase-1-abundance-in-white-adipose-tissue-implications-in-obesity-research
#4
Jaycob D Warfel, Bolormaa Vandanmagsar, Olga S Dubuisson, Sydney M Hodgeson, Carrie M Elks, Eric Ravussin, Randall L Mynatt
Carnitine Palmitoyltransferase 1 (CPT1) is essential for the transport of long chain fatty acids into the mitochondria for oxidation. Recently, it was reported that decreased CPT1b mRNA in adipose tissue was a contributing factor for obesity in rats. We therefore closely examined the expression level of Cpt1 in adipose tissue from mice, rats, and humans. Cpt1a is the predominate isoform in adipose tissue from all three species. Rat white adipose tissue has a moderate amount of Cpt1b mRNA, but it is very minor compared to Cpt1b expression in muscle...
March 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28315901/the-effect-of-sitagliptin-on-lipid-metabolism-of-fatty-liver-mice-and-related-mechanisms
#5
Bilin Xu, Tian Shen, Lin Chen, Juan Xia, Cuiping Zhang, Hongping Wang, Ming Yu, Tao Lei
BACKGROUND In clinics, patients with type 2 diabetes complicated with non-alcoholic fatty liver disease (NAFLD) have been shown to receive significant improvements in blood glucose levels, lipid levels, and liver function after sitagliptin treatment, although the mechanism of drug action remains poorly understood. This study investigated the possible mechanism of sitagliptin on lipid metabolism of NAFLD mice. MATERIAL AND METHODS Male C57/BL6 mice were induced for NAFLD via 16 weeks of a high-fat diet, and were treated with 15 mg/kg/day sitagliptin for 16 consecutive weeks...
March 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28258156/maternal-metabolic-stress-may-affect-oviduct-gatekeeper-function
#6
Lies Jordaens, Veerle Van Hoeck, Veronica Maillo, Alfonso Gutierrez-Adan, Waleed Fawzy A Marei, Bruno Vlaeminck, Sofie Thys, Roger G S Sturmey, Peter Bols, Jo Leroy
We hypothesized that elevated non-esterified fatty acids (NEFA) modify in vitro bovine oviduct epithelial cell (BOEC) metabolism and barrier function. Hereto, BOECs were studied in a polarized system with 24h-treatments at day 9: 1) CONTROL (0µM NEFA + 0%EtOH), 2) SOLVENT CONTROL (0µM NEFA + 0.45%EtOH), 3) BASAL NEFA (720µM NEFA + 0.45%EtOH in the basal compartment), 4) APICAL NEFA (720µM NEFA + 0.45%EtOH in the apical compartment). FITC-albumin was used for monolayer permeability assessment, and related to Transepithelial Electric Resistance (TER)...
March 3, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28190475/calycosin-attenuates-triglyceride-accumulation-and-hepatic-fibrosis-in-murine-model-of-non-alcoholic-steatohepatitis-via-activating-farnesoid-x-receptor
#7
Xingping Duan, Qiang Meng, Changyuan Wang, Zhihao Liu, Qi Liu, Huijun Sun, Pengyuan Sun, Xiaobo Yang, Xiaokui Huo, Jinyong Peng, Kexin Liu
BACKGROUND: Non-alcoholic steatohepatitis (NASH) represents the more severe end of hepatic steatosis and is associated with progressive liver disease. Calycosin, derived from the root of Radix Astragali, has been demonstrated to have favorable efficacy on acute liver injury. PURPOSE: The present study was to investigate the hepatoprotective effect of calycosin on attenuating triglyceride accumulation and hepatic fibrosis, as well as explore the potential mechanism in murine model of NASH...
February 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28146135/the-transcription-profile-unveils-the-cardioprotective-effect-of-aspalathin-against-lipid-toxicity-in-an-in-vitro-h9c2-model
#8
Rabia Johnson, Phiwayinkosi V Dludla, Christo J F Muller, Barbara Huisamen, M Faadiel Essop, Johan Louw
Aspalathin, a C-glucosyl dihydrochalcone, has previously been shown to protect cardiomyocytes against hyperglycemia-induced shifts in substrate preference and subsequent apoptosis. However, the precise gene regulatory network remains to be elucidated. To unravel the mechanism and provide insight into this supposition, the direct effect of aspalathin in an isolated cell-based system, without the influence of any variables, was tested using an H9c2 cardiomyocyte model. Cardiomyocytes were exposed to high glucose (33 mM) for 48 h before post-treatment with or without aspalathin...
January 31, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28135329/hepatic-effects-of-pharmacological-doses-of-hydroxy-cobalamin-c-lactam-in-mice
#9
Patrizia Haegler, David Grünig, Benjamin Berger, Luigi Terracciano, Stephan Krähenbühl, Jamal Bouitbir
The vitamin B12 analog hydroxy-cobalamin[c-lactam] (HCCL) impairs hepatic mitochondrial protein synthesis and function of the electron transport chain in rats. We aimed to establish an in vivo model for mitochondrial dysfunction in mice, which could be used to investigate hepatotoxicity of mitochondrial toxicants. In a first step, we performed a dose-finding study in mice treated with HCCL 0.4 mg/kg and 4 mg/kg i.p. for two to four weeks. The plasma methylmalonate concentration was strongly increased at 4 mg/kg starting at three weeks of treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28107461/inhibition-of-fatty-acid-synthase-reduces-blastocyst-hatching-through-regulation-of-the-akt-pathway-in-pigs
#10
Jing Guo, Nam-Hyung Kim, Xiang-Shun Cui
Fatty acid synthase (FASN) is an enzyme responsible for the de novo synthesis of long-chain fatty acids. During oncogenesis, FASN plays a role in growth and survival rather than acting within the energy storage pathways. Here, the function of FASN during early embryonic development was studied using its specific inhibitor, C75. We found that the presence of the inhibitor reduced blastocyst hatching. FASN inhibition decreased Cpt1 expression, leading to a reduction in mitochondria numbers and ATP content. This inhibition of FASN resulted in the down-regulation of the AKT pathway, thereby triggering apoptosis through the activation of the p53 pathway...
2017: PloS One
https://www.readbyqxmd.com/read/28088654/transcriptional-response-of-skeletal-muscle-to-a-low-protein-perinatal-diet-in-rat-offspring-at-different-ages-the-role-of-key-enzymes-of-glucose-fatty-acid-oxidation
#11
José Luiz de Brito Alves, Ana Elisa Toscano, João Henrique da Costa-Silva, Hubert Vidal, Carol Góis Leandro, Luciano Pirola
Skeletal muscle is a plastic tissue during development with distinctive acute and chronic response to maternal protein restriction. This study evaluated gene and protein expression of key-enzymes of glycolytic pathway (HK2, PFK, PDK4 and CS), and fatty acid oxidation (CPT1 and β-HAD) of two different types of skeletal muscle [soleus and extensor digitorium longus (EDL)] from offspring rats at 30 and 90 days of age, exposed to maternal isoenergetic low protein diet throughout gestation and lactation. Pups from dams fed 17% protein diet (n=5, normal protein, Np), and low protein pups from dams fed 8% casein diet (low protein, Lp, n=5) were evaluated...
December 15, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28076827/new-diphenylmethane-derivatives-as-peroxisome-proliferator-activated-receptor-alpha-gamma-dual-agonists-endowed-with-anti-proliferative-effects-and-mitochondrial-activity
#12
Luca Piemontese, Carmen Cerchia, Antonio Laghezza, Pamela Ziccardi, Sabina Sblano, Paolo Tortorella, Vito Iacobazzi, Vittoria Infantino, Paolo Convertini, Fabrizio Dal Piaz, Angelo Lupo, Vittorio Colantuoni, Antonio Lavecchia, Fulvio Loiodice
We screened a short series of new chiral diphenylmethane derivatives and identified potent dual PPARα/γ partial agonists. As both enantiomers of the most active compound 1 displayed an unexpected similar transactivation activity, we performed docking experiments to provide a molecular understanding of their similar partial agonism. We also evaluated the ability of both enantiomers of 1 and racemic 2 to inhibit colorectal cancer cells proliferation: (S)-1 displayed a more robust activity due, at least in part, to a partial inhibition of the Wnt/β-catenin signalling pathway that is upregulated in the majority of colorectal cancers...
February 15, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28068143/adaptations-to-excess-choline-in-insulin-resistant-and-pcyt2-deficient-skeletal-muscle
#13
Adrian Taylor, Laila Cigana Schenkel, Maiya Yokich, Marica Bakovic
It was hypothesized that choline supplementation in insulin resistant (IR) CTP:phosphoethanolamine cytidylyltransferase deficient (Pcyt2(+/-)) mice would ameliorate muscle function by remodeling glucose and fatty acid (FA) metabolism. Pcyt2(+/-) mice either received no treatment or were allowed access to 2 mg/mL choline in drinking water for 4 weeks. Skeletal muscle was harvested from choline treated and untreated mice. Lipid analysis and metabolic gene expression and signaling pathways were compared between untreated Pcyt2(+/-) mice, treated Pcyt2(+/-) mice, and Pcyt2(+/+) mice...
April 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28024299/the-role-of-fatty-acid-%C3%AE-oxidation-in-lymphangiogenesis
#14
Brian W Wong, Xingwu Wang, Annalisa Zecchin, Bernard Thienpont, Ivo Cornelissen, Joanna Kalucka, Melissa García-Caballero, Rindert Missiaen, Hongling Huang, Ulrike Brüning, Silvia Blacher, Stefan Vinckier, Jermaine Goveia, Marlen Knobloch, Hui Zhao, Cathrin Dierkes, Chenyan Shi, René Hägerling, Veronica Moral-Dardé, Sabine Wyns, Martin Lippens, Sebastian Jessberger, Sarah-Maria Fendt, Aernout Luttun, Agnès Noel, Friedemann Kiefer, Bart Ghesquière, Lieve Moons, Luc Schoonjans, Mieke Dewerchin, Guy Eelen, Diether Lambrechts, Peter Carmeliet
Lymphatic vessels are lined by lymphatic endothelial cells (LECs), and are critical for health. However, the role of metabolism in lymphatic development has not yet been elucidated. Here we report that in transgenic mouse models, LEC-specific loss of CPT1A, a rate-controlling enzyme in fatty acid β-oxidation, impairs lymphatic development. LECs use fatty acid β-oxidation to proliferate and for epigenetic regulation of lymphatic marker expression during LEC differentiation. Mechanistically, the transcription factor PROX1 upregulates CPT1A expression, which increases acetyl coenzyme A production dependent on fatty acid β-oxidation...
December 26, 2016: Nature
https://www.readbyqxmd.com/read/28009086/1-2-diacylglycerol-choline-phosphotransferase-catalyzes-the-final-step-in-the-unique-treponema-denticola-phosphatidylcholine-biosynthesis-pathway
#15
Miguel Ángel Vences-Guzmán, M Paula Goetting-Minesky, Ziqiang Guan, Santiago Castillo-Ramirez, Luz América Córdoba-Castro, Isabel M López-Lara, Otto Geiger, Christian Sohlenkamp, J Christopher Fenno
Treponema denticola synthesizes phosphatidylcholine through a licCA-dependent CDP-choline pathway identified only in the genus Treponema. However, the mechanism of conversion of CDP-choline to phosphatidylcholine remained unclear. We report here characterization of TDE0021 (herein designated cpt) encoding a 1,2-diacylglycerol choline phosphotransferase homologous to choline phosphotransferases that catalyze the final step of the highly conserved Kennedy pathway for phosphatidylcholine synthesis in eukaryotes...
December 23, 2016: Molecular Microbiology
https://www.readbyqxmd.com/read/27941940/kefir-peptides-prevent-high-fructose-corn-syrup-induced-non-alcoholic-fatty-liver-disease-in-a-murine-model-by-modulation-of-inflammation-and-the-jak2-signaling-pathway
#16
H L Chen, T C Tsai, Y C Tsai, J W Liao, C C Yen, C M Chen
OBJECTIVE: In recent years, people have changed their eating habits, and high-fructose-containing bubble tea has become very popular. High-fructose intake has been suggested to be a key factor that induces non-alcoholic fatty liver disease (NAFLD). Kefir, a fermented milk product composed of microbial symbionts, has demonstrated numerous biological activities, including antibacterial, antioxidant and immunostimulating effects. The present study aims to evaluate the effects of kefir peptides on high-fructose-induced hepatic steatosis and the possible molecular mechanism...
December 12, 2016: Nutrition & Diabetes
https://www.readbyqxmd.com/read/27927695/orally-administrated-fatty-acids-enhanced-anorectic-potential-but-did-not-activate-central-fatty-acid-sensing-in-senegalese-sole-post-larvae
#17
Cristina Velasco, Kruno Bonacic, José L Soengas, Sofia Morais
Studies in fish have reported the presence and function of fatty acid (FA)-sensing systems comparable in many aspects to those known in mammals. Such studies were carried out in juvenile and adult fish, but the presence of FA sensing systems and control of food intake has never been evaluated in early stages, despite the importance of establishing when appetite regulation becomes functional in larval fish. In this study we aimed to elucidate the possible effects of different specific FA on neural FA sensing systems and neuropeptides involved in the control of food intake in Senegalese sole post-larvae...
December 7, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27917474/germacrone-inhibits-adipogenesis-and-stimulates-lipolysis-via-the-amp-activated-protein-kinase-signalling-pathway-in-3t3-l1-preadipocytes
#18
Yuan-Ri Guo, Se-Young Choung
OBJECTIVES: In a previous study, we reported that Aster spathulifolius Maxim extract (ASE) inhibited lipid accumulation and adipocyte differentiation in 3T3-L1 cells. Of the components in ASE, germacrone (GM) was identified as a potent bioactive constituent. GM is known for its anticancer and antiviral activity. However, the effects of GM and the molecular mechanism by which GM regulates adipogenesis and lipolysis were not reported. Therefore, we investigated the effect of GM on adipogenesis and lipolysis and to elucidate its underlying molecular mechanism...
February 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/27912736/citrus-junos-tanaka-peel-ameliorates-hepatic-lipid-accumulation-in-hepg2-cells-and-in-mice-fed-a-high-cholesterol-diet
#19
Eun Ju Shin, Jae Ho Park, Mi Jeong Sung, Min-Yu Chung, Jin-Taek Hwang
BACKGROUND: Citrus junos Tanaka (yuja), a yellow-coloured citrus fruit has traditionally been consumed in Korea, Japan, and China and has been found effective in preventing certain diseases. However, the inhibitory effect of yuja on hepatic lipid accumulation has not been clearly elucidated thus far. METHODS: The inhibitory effect of yuja on hepatic lipid accumulation was investigated in both cell culture and mouse models. We investigated the inhibitory effect of ethanol extract of yuja peel (YE) using HepG2 cells...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27889747/alisol-a-24-acetate-prevents-hepatic-steatosis-and-metabolic-disorders-in-hepg2-cells
#20
Lu Zeng, WaiJiao Tang, JinJin Yin, LiJuan Feng, Yabing Li, Xiaorui Yao, BenJie Zhou
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is closely associated with metabolic disorders including hepatic lipid accumulation and inflammation. Alisol A 24-acetate, a triterpene from Alismatis rhizome, has multiple biologic activities such as hypolipidemic, anti-inflammatory and anti-diabetic. Thus we hypothesized that Alisol A 24 -acetate would have effect on NAFLD. The present study was conducted to investigate the therapeutic effects and potential mechanisms of Alisol A 24-acetate against hepatic steatosis in a free fatty acids (FFAs) induced NAFLD cell model...
2016: Cellular Physiology and Biochemistry
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