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https://www.readbyqxmd.com/read/29018241/eugenol-inhibits-oxidative-phosphorylation-and-fatty-acid-oxidation-via-downregulation-of-c-myc-pgc-1%C3%AE-err%C3%AE-signaling-pathway-in-mcf10a-ras-cells
#1
Xianxin Yan, Guijuan Zhang, Fengjie Bie, Yanhong Lv, Yi Ma, Min Ma, Yurong Wang, Xiaoqian Hao, Naijun Yuan, Xuefeng Jiang
Alteration in cellular energy metabolism plays a critical role in the development and progression of cancer. Targeting metabolic pathways for cancer treatment has been investigated as potential preventive or therapeutic methods. Eugenol (Eu), a major volatile constituent of clove essential oil mainly obtained from Syzygium, has been reported as a potential chemopreventive drug. However, the mechanism by which Eu regulates cellular energy metabolism is still not well defined. This study was designed to determine the effect of Eu on cellular energy metabolism during early cancer progression employing untransformed and H-ras oncogene transfected MCF10A human breast epithelial cells...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28974683/caspase-1-cleaves-ppar%C3%AE-for-potentiating-the-pro-tumor-action-of-tams
#2
Zhiyuan Niu, Qian Shi, Wenlong Zhang, Yuxin Shu, Nanfei Yang, Bing Chen, Qingsong Wang, Xuyang Zhao, Jiajia Chen, Nan Cheng, Xiujing Feng, Zichun Hua, Jianguo Ji, Pingping Shen
Tumor-associated macrophages are increasingly viewed as a target of great relevance in the tumor microenvironment, because of their important role in cancer progression and metastasis. However, the endogenous regulatory mechanisms underlying tumor-associated macrophage differentiation remain largely unknown. Here, we report that caspase-1 promotes tumor-associated macrophage differentiation by cleaving peroxisome proliferator-activated receptor gamma (PPARγ) at Asp64, thus generating a 41 kDa fragment. This truncated PPARγ translocates to mitochondria, where it directly interacts with medium-chain acyl-CoA dehydrogenase (MCAD)...
October 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28935932/cannabidiol-attenuates-alcohol-induced-liver-steatosis-metabolic-dysregulation-inflammation-and-neutrophil-mediated-injury
#3
Yuping Wang, Partha Mukhopadhyay, Zongxian Cao, Hua Wang, Dechun Feng, György Haskó, Raphael Mechoulam, Bin Gao, Pal Pacher
Cannabidiol (CBD) is a non-psychoactive component of marijuana, which has anti-inflammatory effects. It has also been approved by FDA for various orphan diseases for exploratory trials. Herein, we investigated the effects of CBD on liver injury induced by chronic plus binge alcohol feeding in mice. CBD or vehicle was administered daily throughout the alcohol feeding study. At the conclusion of the feeding protocol, serums samples, livers or isolated neutrophils were utilized for molecular biology, biochemistry and pathology analysis...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28934791/a-practical-guide-for-treatment-of-pain-in-patients-with-systemic-mast-cell-activation-disease
#4
Stefan Wirz, Gerhard J Molderings
Systemic mast cell activation disease (MCAD, a subclass of mastocytosis), which has a prevalence of around 17% (at least in the German population), is characterized by accumulation of genetically altered dysfunctional mast cells with abnormal release of these cells' mediators. Since mast cells affect functions in potentially every organ system, often without causing abnormalities in routine laboratory or radiologic testing, this disease has to be considered routinely in the differential diagnosis of patients with chronic multisystem polymorbidity of a generally inflammatory and allergic theme...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28927828/fatty-acid-oxidation-defects-presenting-as-primary-myopathy-and-prominent-dropped-head-syndrome
#5
Seena Vengalil, Veeramani Preethish-Kumar, Kiran Polavarapu, Rita Christopher, Narayanappa Gayathri, Archana Natarajan, Mahadevappa Manjunath, Saraswati Nashi, Chandrajit Prasad, Atchayaram Nalini
Fatty acid oxidation disorders presenting as primary myopathy is relatively rare and also diagnostically challenging. Its association with "dropped head syndrome" is reported till date in single cases of carnitine deficiency and multiple acyl CoA dehydrogenase deficiency (MADD).We studied nineteen cases of primary progressive myopathy confirmed to have fatty acid oxidation defects by Tandem Mass Spectrometry. The detailed clinical, muscle histopathology, tandem mass spectrometry and muscle magnetic resonance imaging (MRI) findings are presented here...
November 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28920396/-inhibition-of-chitin-oligosaccharide-on-dyslipidemia-and-the-potential-molecular-mechanism-exploration
#6
Fanqi Yi, Junping Zheng, Qiongyu Li, Siming Jiao, Yuguang Du, Yun Ye, Hongtao Liu
The inhibitory effect of NACOS on dyslipidemia and potential molecular mechanisms by in vitro and in vivo experiments were investigated. For in vitro study, four experimental groups were designed by using HepG2 cells, including the control group, palmitic acid (PA) treatment alone group, NACOS treatment alone group and NACOS + PA treatment group. For in vivo study, male C57BL/6 mice were divided into four groups (n=5) at random including the normal control group (NCD), high fat diet (HFD) group, NACOS treatment alone group, NACOS+HFD group, which were treated for 20 weeks...
April 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28855630/ppar%C3%AE-activation-protects-against-cholestatic-liver-injury
#7
Qi Zhao, Rui Yang, Jing Wang, Dan-Dan Hu, Fei Li
Intrahepatic cholestasis induced by drug toxicity, bile salt export pump (BSEP) deficiency, or pregnancy frequently causes cholestatic liver damage, which ultimately may lead to liver fibrosis and cirrhosis. Here, the preventive and therapeutic effects of peroxisome proliferator-activated receptor α (PPARα) signaling activated by fenofibrate was evaluated on cholestatic liver damage. Metabolomic analysis revealed that alpha-naphthyl isothiocyanate (ANIT)-induced intrahepatic cholestasis resulted in the accumulation of serum long-chain acylcarnitines and triglyceride, and the reduced expression of four fatty acid β-oxidation (β-FAO) relevant genes (Cpt1b, Cpt2, Mcad and Hadha), indicating the disruption of β-FAO...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28753542/mri-in-medium-chain-acyl-coenzyme-a-dehydrogenase-deficiency-neuroimaging-during-the-first-month
#8
Lorenzo Figà Talamanca, Luca Pasquini, Antonio Napolitano, Daniela Longo
BACKGROUND: Medium-chain acyl-coenzyme A dehydrogenase (MCAD) is the most common genetic disorder of fatty acid oxidation, which presents before the age of 2 with the onset of acute hypoketotic hypoglycemia, and is typically precipitated by stress. CASE PRESENTATION: We report serial brain magnetic resonance imaging (MRI) changes, including MR spectroscopy (MRS) and diffusion weighted imaging (DWI), in a patient with a classical MCAD presentation, compared with five healthy controls...
August 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28544394/muscle-metabolic-alterations-induced-by-genetic-ablation-of-4e-bp1-and-4e-bp2-in-response-to-diet-induced-obesity
#9
Olivier Le Bacquer, Kristell Combe, Christophe Montaurier, Jérôme Salles, Christophe Giraudet, Véronique Patrac, Carla Domingues-Faria, Christelle Guillet, Katie Louche, Yves Boirie, Nahum Sonenberg, Cédric Moro, Stéphane Walrand
SCOPE: In recent years, several studies reported the role of eIF4E-binding proteins (4E-BPs) on the development of diet-induced obesity and insulin resistance. Our aim was to investigate the effect of 4E-BP protein deletion on lipid accumulation and metabolism in skeletal muscle in response to a high-fat diet induced obesity in 4E-BP1/2 DKO mice. METHODS AND RESULTS: Diet-induced obesity engendered increased ectopic accumulation of lipotoxic species in skeletal muscle of 4E-BP1 and 4E-BP2 double knockout mice (4E-BP1/2 DKO), namely diacylglycerols and ceramides...
May 21, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28441325/the-effects-of-taekwondo-training-on-peripheral-neuroplasticity-related-growth-factors-cerebral-blood-flow-velocity-and-cognitive-functions-in-healthy-children-a-randomized-controlled-trial
#10
RANDOMIZED CONTROLLED TRIAL
Su-Youn Cho, Wi-Young So, Hee-Tae Roh
Although regular Taekwondo (TKD) training has been reported to be effective for improving cognitive function in children, the mechanism underlying this improvement remains unclear. The purpose of the present study was to observe changes in neuroplasticity-related growth factors in the blood, assess cerebral blood flow velocity, and verify the resulting changes in children's cognitive function after TKD training. Thirty healthy elementary school students were randomly assigned to control (n = 15) and TKD (n = 15) groups...
April 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28390772/outcomes-of-thoracic-endovascular-repair-for-type-b-aortic-dissection-with-multichanneled-morphology
#11
COMPARATIVE STUDY
Baolei Guo, Kai Hou, Daqiao Guo, Xin Xu, Zhenyu Shi, Yan Shan, Peng Lv, Weiguo Fu
OBJECTIVE: Clinical outcomes after thoracic endovascular aortic repair (TEVAR) for patients with multichanneled aortic dissection (MCAD) are poorly understood but seem substantially different from those for patients with double-channeled aortic dissection (AD). This study compared the anatomic and clinical factors for patients with MCAD who underwent TEVAR with or without full true lumen (TL) collapse. METHODS: From January 2012 to March 2016, 54 of 644 consecutive type B AD patients (8...
October 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28386270/fimasartan-ameliorates-nonalcoholic-fatty-liver-disease-through-ppar%C3%AE-regulation-in-hyperlipidemic-and-hypertensive-conditions
#12
Yong-Jik Lee, Yoo-Na Jang, Yoon-Mi Han, Hyun-Min Kim, Jong-Min Jeong, Hong Seog Seo
To investigate the effects of fimasartan on nonalcoholic fatty liver disease in hyperlipidemic and hypertensive conditions, the levels of biomarkers related to fatty acid metabolism were determined in HepG2 and differentiated 3T3-L1 cells treated by high fatty acid and liver and visceral fat tissue samples of spontaneously hypertensive rats (SHRs) given high-fat diet. In HepG2 cells and liver tissues, fimasartan was shown to increase the protein levels of peroxisome proliferator-activated receptor delta (PPARδ), phosphorylated 5' adenosine monophosphate-activated protein kinase (p-AMPK), phosphorylated acetyl-CoA carboxylase (p-ACC), malonyl-CoA decarboxylase (MCD), medium chain acyl-CoA dehydrogenase (MCAD), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), and it led to a decrease in the protein levels of 11 beta-hydroxysteroid dehydrogenase 1 (11β-HSDH1), fatty acid synthase (FAS), and tumor necrosis factor-alpha (TNF-α)...
2017: PPAR Research
https://www.readbyqxmd.com/read/28356434/the-growth-promoting-effect-of-dietary-nucleotides-in-fish-is-associated-with-an-intestinal-microbiota-mediated-reduction-in-energy-expenditure
#13
Xiaoze Guo, Chao Ran, Zhen Zhang, Suxu He, Min Jin, Zhigang Zhou
Background: Nucleotides have been used as functional nutrients to improve the growth and health of animals, including fish. The mechanism involved in the growth-promotion effect of nucleotides is still unclear.Objective: We investigated the bioenergetic mechanism underlying the growth-promotion effect of nucleotides in zebrafish and the associated roles played by the intestinal microbiota.Methods: Larval zebrafish were fed a control or a 0.1% mixed nucleotides-supplemented diet for 2 wk. Standard metabolic rate, the minimal rate of energy expenditure by animals at rest, was evaluated by oxygen consumption with the use of a respirometer...
May 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28353634/vitamin-d-insufficiency-exacerbates-adipose-tissue-macrophage-infiltration-and-decreases-ampk-sirt1-activity-in-obese-rats
#14
Eugene Chang, Yangha Kim
Obesity is recognized as a state of chronic low-grade systemic inflammation due to adipose tissue macrophage infiltration and production of proinflammatory adipokines. Decreased vitamin D status is associated with obesity. The specific aim of the present study is to investigate the effects of vitamin D on obesity-induced adipose tissue inflammation. Male Sprague-Dawley rats were randomized and fed a normal diet (NOR, 1000 IU vitamin D/kg diet), a 45% high-fat diet (HF, 1000 IU vitamin D/kg diet), or a 45% high-fat diet containing 25 IU vitamin D/kg diet (HF+LVD) for 12 weeks...
March 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28116391/a-rich-medium-chain-triacylglycerol-diet-benefits-adiposity-but-has-adverse-effects-on-the-markers-of-hepatic-lipogenesis-and-beta-oxidation
#15
Carolina Maria de Oliveira Chamma, Thereza Cristina Lonzetti Bargut, Carlos Alberto Mandarim-de-Lacerda, Marcia Barbosa Aguila
We investigated the increasing amounts of medium-chain triacylglycerol (MCT) in the diet on hepatic lipid metabolism. Mature C57BL/6 male mice were randomly divided into five groups (n = 10/group). The animals received their diet for 12 weeks, as a control (C group, 10% of energy from lipids); high-fat lard (HF group, isoenergetic diet, 50% of energy from lipids with lard); a mixture of lard and MCT oil (with a gradual replacement of lard by MCT: HF-MCT25%, HF-MCT75%, and HF-MCT100% groups). At euthanasia, we collected blood and dissected the liver for analyses (glucose, insulin, HOMA-IR, QUICK index, and triacylglycerol, light microscopy, western blotting, and RT-qPCR)...
February 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28045125/metabolic-heterogeneity-of-activated-beige-brite-adipocytes-in-inguinal-adipose-tissue
#16
Yun-Hee Lee, Sang-Nam Kim, Hyun-Jung Kwon, James G Granneman
Sustained β3 adrenergic receptor (ADRB3) activation simultaneously upregulates fatty acid synthesis and oxidation in mouse brown, beige, and white adipose tissues; however, the cellular basis of this dual regulation is not known. Treatment of mice with the ADRB3 agonist CL316,243 (CL) increased expression of fatty acid synthase (FASN) and medium chain acyl-CoA dehydrogenase (MCAD) protein within the same cells in classic brown and white adipose tissues. Surprisingly, in inguinal adipose tissue, CL-upregulated FASN and MCAD in distinct cell populations: high MCAD expression occurred in multilocular adipocytes that co-expressed UCP1+, whereas high FASN expression occurred in paucilocular adipocytes lacking detectable UCP1...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27976856/unveiling-the-pathogenic-molecular-mechanisms-of-the-most-common-variant-p-k329e-in-medium-chain-acyl-coa-dehydrogenase-deficiency-by-in-vitro-and-in-silico-approaches
#17
Cátia A Bonito, Joana Nunes, João Leandro, Filipa Louro, Paula Leandro, Fátima V Ventura, Rita C Guedes
Medium-chain acyl-CoA dehydrogenase deficiency (MCADD) is the most common genetic disorder affecting the mitochondrial fatty acid β-oxidation pathway. The mature and functional form of human MCAD (hMCAD) is a homotetramer assembled as a dimer of dimers (monomers A/B and C/D). Each monomer binds a FAD cofactor, necessary for the enzyme's activity. The most frequent mutation in MCADD results from the substitution of a lysine with a glutamate in position 304 of mature hMCAD (p.K329E in the precursor protein)...
December 27, 2016: Biochemistry
https://www.readbyqxmd.com/read/27943070/development-of-a-tandem-mass-spectrometry-method-for-rapid-measurement-of-medium-and-very-long-chain-acyl-coa-dehydrogenase-activity-in-fibroblasts
#18
Damien Bouvier, Christine Vianey-Saban, Séverine Ruet, Cécile Acquaviva
Mitochondrial fatty acid oxidation is a vital biochemical process for energy metabolism. Among the known fatty-acid metabolism disorders, very-long-chain acyl-CoA dehydrogenase (VLCAD) deficiency and medium-chain acyl-CoA dehydrogenase (MCAD) deficiency count among the most frequent. Both are potentially very serious diseases as they carry a risk of severe neurological post-crisis sequelae, and even sudden death. Diagnosis relies on plasma acylcarnitine profile analysis and urine organic acid analysis, followed by genetic testing to confirm diagnosis...
2017: JIMD Reports
https://www.readbyqxmd.com/read/27927213/living-on-the-edge-substrate-competition-explains-loss-of-robustness-in-mitochondrial-fatty-acid-oxidation-disorders
#19
Karen van Eunen, Catharina M L Volker-Touw, Albert Gerding, Aycha Bleeker, Justina C Wolters, Willemijn J van Rijt, Anne-Claire M F Martines, Klary E Niezen-Koning, Rebecca M Heiner, Hjalmar Permentier, Albert K Groen, Dirk-Jan Reijngoud, Terry G J Derks, Barbara M Bakker
BACKGROUND: Defects in genes involved in mitochondrial fatty-acid oxidation (mFAO) reduce the ability of patients to cope with metabolic challenges. mFAO enzymes accept multiple substrates of different chain length, leading to molecular competition among the substrates. Here, we combined computational modeling with quantitative mouse and patient data to investigate whether substrate competition affects pathway robustness in mFAO disorders. RESULTS: First, we used comprehensive biochemical analyses of wild-type mice and mice deficient for medium-chain acyl-CoA dehydrogenase (MCAD) to parameterize a detailed computational model of mFAO...
December 7, 2016: BMC Biology
https://www.readbyqxmd.com/read/27871288/tissue-specific-expression-of-human-fatty-acid-oxidation-enzyme-genes-in-late-pregnancy
#20
Jose L Bartha, Fernando Bugatto, Álvaro Fernández-Deudero, Rosa Fernández-Macías, Germán Perdomo
BACKGROUND: Abnormal fatty acid oxidation (FAO) is associated with maternal and fetal complications during pregnancy. The contribution of maternal and fetal tissues to FAO capacity during late pregnancy is important to understand the pathophysiology of pregnancy-associated complications. The aim of this study was to determine the expression levels of mitochondrial FAO enzymes in maternal and fetal tissues during late normal pregnancy. METHODS: We have measured by Real-time PCR the levels of long- and medium -chain acyl-CoA dehydrogenase (LCHAD and MCAD), two acyl-CoA dehydrogenases that catalyze the initial step in the mitochondrial FAO spiral...
November 21, 2016: Lipids in Health and Disease
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