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https://www.readbyqxmd.com/read/29230177/effect-of-morinda-citrifolia-noni-enriched-diet-on-hepatic-heat-shock-protein-and-lipid-metabolism-related-genes-in-heat-stressed-broiler-chickens
#1
Joshua Flees, Hossein Rajaei-Sharifabadi, Elizabeth Greene, Lesleigh Beer, Billy M Hargis, Laura Ellestad, Tom Porter, Annie Donoghue, Walter G Bottje, Sami Dridi
Heat stress (HS) has been reported to alter fat deposition in broilers, however the underlying molecular mechanisms are not well-defined. The objectives of the current study were, therefore: (1) to determine the effects of acute (2 h) and chronic (3 weeks) HS on the expression of key molecular signatures involved in hepatic lipogenic and lipolytic programs, and (2) to assess if diet supplementation with dried Noni medicinal plant (0.2% of the diet) modulates these effects. Broilers (480 males, 1 d) were randomly assigned to 12 environmental chambers, subjected to two environmental conditions (heat stress, HS, 35°C vs...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29201040/caffeoylquinic-acid-rich-extract-of-aster-glehni-f-schmidt-ameliorates-nonalcoholic-fatty-liver-through-the-regulation-of-ppar%C3%AE-and-adiponectin-in-apoe-ko-mice
#2
Yong-Jik Lee, Yoo-Na Jang, Yoon-Mi Han, Hyun-Min Kim, Jong-Min Jeong, Min Jeoung Son, Chang Bae Jin, Hyoung Ja Kim, Hong Seog Seo
Aster glehni is well known for its therapeutic properties. This study was performed to investigate the effects of A. glehni on nonalcoholic fatty liver disease (NAFLD) in atherosclerotic condition, by determining the levels of biomarkers related to lipid metabolism and inflammation in serum, liver, and adipose tissue. Body and abdominal adipose tissue weights and serum triglyceride level decreased in all groups treated with A. glehni. Serum adiponectin concentration and protein levels of peroxisome proliferator-activated receptor δ, 5' adenosine monophosphate-activated protein kinase, acetyl-CoA carboxylase, superoxide dismutase, and PPARγ coactivator 1-alpha in liver tissues increased in the groups treated with A...
2017: PPAR Research
https://www.readbyqxmd.com/read/29189708/comparative-analysis-of-soybean-root-proteome-reveals-molecular-basis-of-differential-carboxylate-efflux-under-low-phosphorus-stress
#3
Krishnapriya Vengavasi, Renu Pandey, Gerard Abraham, Ravindra Kumar Yadav
Carboxylate efflux from roots is a crucial and differential response of soybean genotypes to low phosphorus (P) stress. Exudation of carboxylic acids including oxalate, citrate, succinate and fumarate was induced under low P stress, particularly in P-efficient soybean genotypes. Enhancement of root length, surface area and volume further improved P acquisition under low P stress. To understand the molecular basis of carboxylate efflux under low P stress, the root proteome of contrasting genotypes (P-efficient: EC-232019 and P-inefficient: EC-113396) was compared...
November 30, 2017: Genes
https://www.readbyqxmd.com/read/29097205/characterization-of-human-alkb-homolog-1-produced-in-mammalian-cells-and-demonstration-of-mitochondrial-dysfunction-in-alkbh1-deficient-cells
#4
Tina A Müller, Sarah L Struble, Katheryn Meek, Robert P Hausinger
Alkbh1 is a mammalian homolog of the Escherichia coli DNA repair enzyme AlkB, an Fe(II) and 2-oxoglutarate dependent dioxygenase that removes alkyl lesions from DNA bases. The human homolog ALKBH1 has been associated with six different enzymatic activities including DNA, mRNA, or tRNA hydroxylation, cleavage at abasic (AP) sites in DNA, as well as demethylation of histones. The reported cellular roles of this protein reflect the diverse enzymatic activities and include direct DNA repair, tRNA modification, and histone modification...
October 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29089625/modes-of-carbon-fixation-in-an-arsenic-and-co2-rich-shallow-hydrothermal-ecosystem
#5
Nolwenn Callac, Nicole R Posth, Jayne E Rattray, Kweku K Y Yamoah, Alan Wiech, Magnus Ivarsson, Christoffer Hemmingsson, Stephanos P Kilias, Ariadne Argyraki, Curt Broman, Henrik Skogby, Rienk H Smittenberg, Ernest Chi Fru
The seafloor sediments of Spathi Bay, Milos Island, Greece, are part of the largest arsenic-CO2-rich shallow submarine hydrothermal ecosystem on Earth. Here, white and brown deposits cap chemically distinct sediments with varying hydrothermal influence. All sediments contain abundant genes for autotrophic carbon fixation used in the Calvin-Benson-Bassham (CBB) and reverse tricaboxylic acid (rTCA) cycles. Both forms of RuBisCO, together with ATP citrate lyase genes in the rTCA cycle, increase with distance from the active hydrothermal centres and decrease with sediment depth...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29049011/-omics-of-food-borne-gastroenteritis-global-proteomic-and-mutagenic-analysis-of-salmonella-enterica-serovar-enteritidis
#6
Aryashree Arunima, Soujanya D Yelamanchi, Chandrashekhar Padhi, Sangeeta Jaiswal, Daniel Ryan, Bhawna Gupta, Gajanan Sathe, Jayshree Advani, Harsha Gowda, T S Keshava Prasad, Mrutyunjay Suar
Salmonella Enteritidis causes food-borne gastroenteritis by the two type three secretion systems (TTSS). TTSS-1 mediates invasion through intestinal lining, and TTSS-2 facilitates phagocytic survival. The pathogens' ability to infect effectively under TTSS-1-deficient background in host's phagocytes is poorly understood. Therefore, pathobiological understanding of TTSS-1-defective nontyphoidal Salmonellosis is highly important. We performed a comparative global proteomic analysis of the isogenic TTSS-1 mutant of Salmonella Enteritidis (M1511) and its wild-type isolate P125109...
October 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28993031/targeting-atp-citrate-lyase-in-hyperlipidemia-and-metabolic-disorders
#7
REVIEW
Stephen L Pinkosky, Pieter H E Groot, Narendra D Lalwani, Gregory R Steinberg
Chronic overnutrition and a sedentary lifestyle promote imbalances in metabolism, often manifesting as risk factors for life-threating diseases such as atherosclerotic cardiovascular disease (ASCVD) and nonalcoholic fatty liver disease (NAFLD). Nucleocytosolic acetyl-coenzyme A (CoA) has emerged as a central signaling node used to coordinate metabolic adaptations in response to a changing nutritional status. ATP-citrate lyase (ACL) is the enzyme primarily responsible for the production of extramitochondrial acetyl-CoA and is thus strategically positioned at the intersection of nutrient catabolism and lipid biosynthesis...
November 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28958474/chronic-low-dose-glucocorticoid-treatment-increases-subcutaneous-abdominal-fat-but-not-visceral-fat-of-male-wistar-rats
#8
Patricia Pereira Nunes, Sandra Andreotti, Flaviane de Fátima Silva, Rogério Antonio Laurato Sertié, Rennan de Oliveira Caminhotto, Ayumi Cristina Medeiros Komino, Gabriela Boltes Reis, Fabio Bessa Lima
AIM: Most studies developed to investigate the effects of glucocorticoids chronic treatment on white adipose tissue uses high doses of these hormones. This study analyzes some effects of a chronic, continuous and steady infusion of low-dose hydrocortisone and the relationship with lipid accumulation in white adipose depots in rats. MAIN METHODS: Nineteen male Wistar rats were divided into control (CON) and cortisol (CORT) groups. Along six weeks CORT group received continuous infusion of 0...
December 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28954258/-hydroxycitric-acid-reduced-lipid-droplets-accumulation-via-decreasing-acetyl-coa-supply-and-accelerating-energy-metabolism-in-cultured-primary-chicken-hepatocytes
#9
Longlong Li, Mengling Peng, Chongyang Ge, Lei Yu, Haitian Ma
BACKGROUND/AIMS: (-)-Hydroxycitric acid (HCA) had been shown to suppress fat accumulation in animals and humans, while the underlying biochemical mechanism is not fully understood, especially little information is available on whether (-)-HCA regulates energy metabolism and consequently affects fat deposition. METHODS: Hepatocytes were cultured for 24 h and then exposed to (-)-HCA (0, 1, 10, 50 µM), enzyme protein content was determined by ELISA; lipid metabolism gene mRNA levels were detected by RT-PCR...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28947800/cytosolic-acetyl-coa-promotes-histone-acetylation-predominantly-at-h3k27-in-arabidopsis
#10
Chen Chen, Chenlong Li, Ying Wang, Justin Renaud, Gang Tian, Shrikaar Kambhampati, Behnaz Saatian, Vi Nguyen, Abdelali Hannoufa, Frédéric Marsolais, Ze-Chun Yuan, Kangfu Yu, Ryan S Austin, Jun Liu, Susanne E Kohalmi, Keqiang Wu, Shangzhi Huang, Yuhai Cui
Acetyl-coenzyme A (acetyl-CoA) is a central metabolite and the acetyl source for protein acetylation, particularly histone acetylation that promotes gene expression. However, the effect of acetyl-CoA levels on histone acetylation status in plants remains unknown. Here, we show that malfunctioned cytosolic acetyl-CoA carboxylase1 (ACC1) in Arabidopsis leads to elevated levels of acetyl-CoA and promotes histone hyperacetylation predominantly at lysine 27 of histone H3 (H3K27). The increase of H3K27 acetylation (H3K27ac) is dependent on adenosine triphosphate (ATP)-citrate lyase which cleaves citrate to acetyl-CoA in the cytoplasm, and requires histone acetyltransferase GCN5...
October 2017: Nature Plants
https://www.readbyqxmd.com/read/28923414/a-proteomic-approach-to-the-mechanisms-underlying-activation-of-aluminium-resistance-in-roots-of-urochloa-decumbens
#11
Catalina Arroyave, Roser Tolrà, Livia Chaves, Marcelo Claro de Souza, Juan Barceló, Charlotte Poschenrieder
The mechanisms of extreme Al-resistance in Urochloa decumbens are not established. Full resistance expression requires a lag time of 72-96h and is preceded by a sensitive phase (24-48h) with Al-induced root growth inhibition. The aim here was to identify key processes of the activation phase of Al-resistance analysing both root exudates and comparative root proteome. Samples were taken after 0, 24 and 96h exposure to 0 or 200μM Al. Al-induced stimulation of citrate and oxalate efflux was limited to the sensitive phase...
September 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28901466/mir-133b-acts-as-a-tumor-suppressor-and-negatively-regulates-atp-citrate-lyase-via-ppar%C3%AE-in-gastric-cancer
#12
Yunsheng Cheng, Benli Jia, Yong Wang, Shengyun Wan
MicroRNAs (miRNAs/miRs) are a class of small noncoding RNAs that negatively regulate protein expression by binding to protein-coding mRNAs and suppressing translation. Accumulating evidence suggests that miRNAs are involved in the development and progression of cancer by regulating cancer metabolism. Meanwhile, the cytosolic enzyme ATP citrate lyase (ACLY) is a promising target in the prevention and treatment of cancer. In the present study we revealed by western blot analysis and reverse transcription‑quantitative PCR that miR-133b was downregulated in human gastric cancer (GC) tissues and cell lines, while ACLY was upregulated...
November 2017: Oncology Reports
https://www.readbyqxmd.com/read/28891024/resveratrol-supplementation-improves-lipid-and-glucose-metabolism-in-high-fat-diet-fed-blunt-snout-bream
#13
Dingdong Zhang, Yanan Yan, Hongyan Tian, Guangzhen Jiang, Xiangfei Li, Wenbin Liu
Here, we aimed to investigate whether resveratrol (RSV) can ameliorate high-fat diet (HFD)-induced metabolic disorder in fish. Blunt snout bream (Megalobrama amblycephala) with average weight 27.99 ± 0.56 g were fed a normal fat diet (NFD, 5% fat, w/w), a HFD (11% fat), or a HFD supplemented with 0.04, 0.36, or 1.08% RSV for 10 weeks. As expected, fish fed a HFD developed hepatic steatosis, as shown by elevated hepatic and plasma triglycerides, raised whole body fat, intraperitoneal fat ratio and hepatosomatic index, and increased plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST)...
September 10, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28884604/novel-treatment-options-for-the-management-of-heterozygous-familial-hypercholesterolemia
#14
Georgios Polychronopoulos, Konstantinos Tziomalos
Even though statins represent the mainstay of treatment of heterozygous familial hypercholesterolemia (FH), their low-density lipoprotein cholesterol (LDL-C) lowering efficacy is finite and most patients with FH will not achieve LDL-C targets with statin monotherapy. Addition of ezetimibe with or without bile acid sequestrants will also not lead to treatment goals in many of these patients, particularly in those with established cardiovascular disease. In this selected subgroup of the FH population, proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors provide substantial reductions in LDL-C levels, reduce cardiovascular morbidity and appear to be safe...
September 14, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28871187/prolonged-fasting-elicits-increased-hepatic-triglyceride-accumulation-in-rats-born-to-dexamethasone-treated-mothers
#15
Lucas Carminatti Pantaleão, Gilson Murata, Caio Jordão Teixeira, Tanyara Baliani Payolla, Junia Carolina Santos-Silva, Daniella Esteves Duque-Guimaraes, Frhancielly S Sodré, Camilo Lellis-Santos, Juliana Camargo Vieira, Dailson Nogueira de Souza, Patrícia Rodrigues Gomes, Sandra Campos Rodrigues, Gabriel Forato Anhe, Silvana Bordin
We investigated the effect of dexamethasone during the last week of pregnancy on glucose and lipid metabolism in male offspring. Twelve-week old offspring were evaluated after fasting for 12-hours (physiological) and 60-hours (prolonged). Physiological fasting resulted in glucose intolerance, decreased glucose clearance after pyruvate load and increased PEPCK expression in rats born to dexamethasone-treated mothers (DEX). Prolonged fasting resulted in increased glucose tolerance and increased glucose clearance after pyruvate load in DEX...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28860003/sleep-restriction-induced-energy-methylation-and-lipogenesis-metabolic-switches-in-rat-liver
#16
Arjun Sengupta, Seth D Rhoades, Eun Ji Kim, Soumyashant Nayak, Gregory R Grant, Peter Meerlo, Aalim M Weljie
Sleep curtailment is ubiquitous in modern day society. Sleep debt is associated with maladaptive physiological changes that can lead to cardiometabolic and neuropsychiatric pathologies. Recent literature has shown the effects of sleep restriction (SR) on systemic metabolic profiles in biofluids, implying that tissue-specific metabolomes are impacted by SR. To test this hypothesis, we assessed hepatic metabolic profiles of rats after 5days of SR using UPLC-MS based metabolomics analysis and gene expression analysis...
August 28, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28777081/binding-of-hydroxycitrate-to-human-atp-citrate-lyase
#17
Jinhong Hu, Aruna Komakula, Marie E Fraser
Hydroxycitrate from the fruit of Garcinia cambogia [i.e. (2S,3S)-2-hydroxycitrate] is the best-known inhibitor of ATP-citrate lyase. Well diffracting crystals showing how the inhibitor binds to human ATP-citrate lyase were grown by modifying the protein. The protein was modified by introducing cleavage sites for Tobacco etch virus protease on either side of a disordered linker. The protein crystallized consisted of residues 2-425-ENLYFQ and S-488-810 of human ATP-citrate lyase. (2S,3S)-2-Hydroxycitrate binds in the same orientation as citrate, but the citrate-binding domain (residues 248-421) adopts a different orientation with respect to the rest of the protein (residues 4-247, 490-746 and 748-809) from that previously seen...
August 1, 2017: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/28727056/effects-of-protein-and-fat-concentration-in-coproduct-based-growing-calf-diets-on-adipogenic-and-lipogenic-gene-expression-blood-metabolites-and-carcass-composition
#18
J R Segers, J J Loor, S J Moisá, D Gonzalez, D W Shike
Crossbred calves ( = 30; age = 95 ± 1.7 d; BW = 179 ± 18 kg) were fed 1 of 5 growing diets: 1) corn-based control, 2) low-fat, low-protein coproduct blend, 3) high-fat, low-protein coproduct blend, 4) low-fat, high-protein coproduct blend, and 5) high-fat, high-protein coproduct blend for 112 d (growing phase) followed by a common corn-based finishing diet (additional 112 d; finishing phase). Calves were biopsied at 0, 112, and 224 d for transcriptional analysis via real-time quantitative PCR of 14 genes associated with adipogenesis and lipogenesis within the muscle...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28689661/nuclear-acetyl-coa-production-by-acly-promotes-homologous-recombination
#19
Sharanya Sivanand, Seth Rhoades, Qinqin Jiang, Joyce V Lee, Joseph Benci, Jingwen Zhang, Salina Yuan, Isabella Viney, Steven Zhao, Alessandro Carrer, Michael J Bennett, Andy J Minn, Aalim M Weljie, Roger A Greenberg, Kathryn E Wellen
While maintaining the integrity of the genome and sustaining bioenergetics are both fundamental functions of the cell, potential crosstalk between metabolic and DNA repair pathways is poorly understood. Since histone acetylation plays important roles in DNA repair and is sensitive to the availability of acetyl coenzyme A (acetyl-CoA), we investigated a role for metabolic regulation of histone acetylation during the DNA damage response. In this study, we report that nuclear ATP-citrate lyase (ACLY) is phosphorylated at S455 downstream of ataxia telangiectasia mutated (ATM) and AKT following DNA damage...
July 20, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28679948/prl2-links-magnesium-flux-and-sex-dependent-circadian-metabolic-rhythms
#20
Noriko Uetani, Serge Hardy, Simon-Pierre Gravel, Silke Kiessling, Adam Pietrobon, Nau Nau Wong, Valérie Chénard, Nicolas Cermakian, Julie St-Pierre, Michel L Tremblay
Magnesium (Mg2+) plays pleiotropic roles in cellular biology, and it is essentially required for all living organisms. Although previous studies demonstrated intracellular Mg2+ levels were regulated by the complex of phosphatase of regenerating liver 2 (PRL2) and Mg2+ transporter of cyclin M (CNNMs), physiological functions of PRL2 in whole animals remain unclear. Interestingly, Mg2+ was recently identified as a regulator of circadian rhythm-dependent metabolism; however, no mechanism was found to explain the clock-dependent Mg2+ oscillation...
July 6, 2017: JCI Insight
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