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https://www.readbyqxmd.com/read/28726671/in-situ-decoration-of-plasmonic-au-nanoparticles-on-graphene-quantum-dots-graphitic-carbon-nitride-hybrid-and-evaluation-of-its-visible-light-photocatalytic-performance
#1
Biswajit Choudhury, Pravat Kumar Giri, Rajender Gone
This work spotlights the development of a plasmonic photocatalyst showing surface plasmon induced enhanced visible light photocatalytic performance. Plasmonic Au nanoparticles (NPs) are decorated over the hybrid nanosystem of graphitic carbon nitride (GCN) and graphene quantum dots (GQD) by citrate reduction method. Surface plasmon resonance (SPR) induced enhancement of Raman G and 2D band intensity is encountered on excitation of the Plasmonic hybrid at 514.5 nm, which is near to the 532 nm absorption band of Au nanoparticles...
July 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28704856/effects-of-highly-pure-enriched-cellulose-diet-on-digestibility-lipid-metabolism-and-redox-status-in-obese-offspring-of-streptozotocin-induced-diabetic-rats
#2
Bensalah Meryem, Bouanane Samira, Benyagoub Ouahiba, Merzouk Hafida, Baba Ahmed Fatima Zohra
The long-term nutritional efficacy of a highly-pure-enriched-cellulose (HPEC) diet and its effects on lipid metabolism and oxidant/antioxidant status were investigated in obese offspring of streptozotocin-induced diabetic rats. Diabetes in pregnant rats was induced by intraperitoneal injection of streptozotocin on day 5 of gestation. Control pregnant rats were injected with citrate buffer. At weaning offspring of diabetic and control rats were fed HPEC or control diet, they were housed individually in metabolic cage for 2 months to investigate the nutritional efficacy of the diets...
July 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28697307/prawn-shell-derived-chitin-nanofiber-membranes-as-advanced-sustainable-separators-for-li-na-ion-batteries
#3
Tianwen Zhang, Bao Shen, Hong-Bin Yao, Tao Ma, Lei-Lei Lu, Fei Zhou, Shu-Hong Yu
Separators, necessary components to isolate cathodes and anodes in Li/Na-ion batteries, are consumed in a large amount per year and thus their sustainability should be concerned for renewable energy storage systems. However, eco-efficient and environmentally friendly fabrication of separators with high mechanical strength, excellent thermal stability and good electrolyte wettability is still challenging. Herein, we reported the fabrication of a new type of separators for Li/Na-ion batteries through the self-assembly of eco-friendly chitin nanofibers derived from prawn shells...
July 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28682939/burn-trauma-acutely-increases-the-respiratory-capacity-and-function-of-liver-mitochondria
#4
Fredrick J Bohanon, Omar Nunez Lopez, David N Herndon, Xiaofu Wang, Nisha Bhattarai, Amina El Ayadi, Anesh Prasai, Jayson W Jay, Yesenia Rojas-Khalil, Tracy E Toliver-Kinsky, Celeste C Finnerty, Ravi S Radhakrishnan, Craig Porter
BACKGROUND: A complete understanding of the role of the liver in burn-induced hypermetabolism is lacking. We investigated the acute effect of severe burn trauma on liver mitochondrial respiratory capacity and coupling control as well as the signaling events underlying these alterations. METHODS: Male BALB/c mice (8-12 weeks) received full-thickness scald burns on ∼30% of the body surface. Liver tissue was harvested 24 hours post injury. Mitochondrial respiration was determined by high-resolution respirometry...
July 4, 2017: Shock
https://www.readbyqxmd.com/read/28679982/pseudomelanosis-duodeni-a-case-report
#5
Masaya Iwamuro, Shohei Oka, Hiromitsu Kanzaki, Takehiro Tanaka, Seiji Kawano, Yoshiro Kawahara, Hiroyuki Okada
An 83-year-old Japanese man underwent esophagogastroduodenoscopy for screening purposes. He had a medical history of hypertension, chronic kidney disease, chronic heart failure, and chronic myeloid leukemia, and he had been taking the following medications:ferrous citrate, furosemide, spironolactone, tolvaptan, bisoprolol, nicorandil, warfarin, nilotinib, febuxostat, esomeprazole, digestive enzyme complex, ambroxol, carbocysteine, and potassium L-aspartate. Esophagogastroduodenoscopy revealed a brownish speckled pigmentation in the duodenal bulb...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28679948/prl2-links-magnesium-flux-and-sex-dependent-circadian-metabolic-rhythms
#6
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
https://www.readbyqxmd.com/read/28668395/gc-ms-based-metabolomics-of-csf-and-blood-serum-metabolic-phenotype-for-a-rat-model-of-cefoperazone-induced-disulfiram-like-reaction
#7
Linsheng Liu, Chenrong Huang, Yicong Bian, Liyan Miao
Cefoperazone is most popularly used in the treatment of complicated infections clinically. Concomitant ingestion of ethnaol and cefoperazone may cause a disulfiram-like reaction. However, very little is known about the possible interactions between cefoperazone treatment and an alcohol with regard to the induction of disulfiram-like reaction. Study of the metabolic impact of cotreatment with cefoperazone and alcohol on animals can facilitate the identification of markers relevant to disulfiram-like reaction...
June 28, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28663335/mitochondrial-quality-control-in-alveolar-epithelial-cells-damaged-by-s-aureus-pneumonia-in-mice
#8
Hagir B Suliman, Bryan D Kraft, Raquel R Bartz, Lingye Chen, Karen E Welty-Wolf, Claude A Piantadosi
(242 words) Mitochondrial damage is often overlooked in acute lung injury (ALI), but most of the lung's physiological processes, such as airway tone, muco-ciliary clearance, Va/Q matching, and immune surveillance require aerobic energy provision. Because the cell's processes of mitochondrial quality control (QC) regulate the elimination and replacement of damaged mitochondria to support cell survival, we evaluated mitochondrial biogenesis and mitophagy in the alveolar region of mice in a validated S. aureus pneumonia model...
June 29, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28655760/silencing-of-solute-carrier-family-13-member-5-disrupts-energy-homeostasis-and-inhibits-proliferation-of-human-hepatocarcinoma-cells
#9
Zhihui Li, Daochuan Li, Eun Yong Choi, Rena Lapidus, Lei Zhang, Shiew-Mei Huang, Paul Shapiro, Hongbing Wang
The solute carrier family 13 member 5 (SLC13A5), a sodium-coupled citrate transporter, plays a key role in importing citrate from the circulation into liver cells. Recent evidence has revealed that SLC13A5 deletion protects mice from high-fat diet-induced hepatic steatosis and that mutation of the SLC13A5 orthologues in D. melanogaster and C. elegans promotes longevity. However, despite the emerging importance of SLC13A5 in energy homeostasis, whether perturbation of SLC13A5 affects the metabolism and malignancy of hepatocellular carcinoma is unknown...
June 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28644992/surface-coating-modulated-toxic-responses-to-silver-nanoparticles-in-wolffia-globosa
#10
Xiaoyan Zou, Penghui Li, Jie Lou, Hongwu Zhang
With the omnipresence of silver nanoparticles (AgNPs) in our daily consumer products, their release has raised serious concerns. However, the biochemical mechanisms by which plants counteract the toxicity of nanoparticles are largely unknown. This study investigated the exposure of aquatic Wolffia globosa to ATP-nAg (AgNPs coated with adenosine triphosphate), cit-nAg (AgNPs coated with citrate), and Ag(+). Hill reaction activity was basically lost in W. globosa treated with 10mg/L ATP-nAg and Ag(+), while the activity was still maintained at 38...
June 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28644553/structural-insights-into-the-inclusion-complexes-between-clomiphene-citrate-and-%C3%AE-cyclodextrin-the-mechanism-of-preferential-isomeric-selection
#11
Arti Maheshwari, Harish Saraswat, Santosh Kumar Upadhyay
A major challenge in pharmaceuticals for clinical applications is to alter the solubility, stability, and toxicity of drug molecules in living systems. Cyclodextrins (CDs) have the ability to form host-guest inclusion complexes with pharmaceuticals for further development of new drug formulations. The inclusion complex of clomiphene citrate (CL), a poorly water-soluble drug, with native β-cyclodextrin (β-CD) was characterized by a one and two-dimensional nuclear magnetic resonance (NMR) spectroscopic approach and also by molecular docking techniques...
June 23, 2017: Chirality
https://www.readbyqxmd.com/read/28641785/acute-detachment-of-hexokinase-ii-from-mitochondria-modestly-increases-oxygen-consumption-of-the-intact-mouse-heart
#12
Rianne Nederlof, Simone Denis, Benjamin Lauzier, Christine Des Rosiers, Markku Laakso, Jacob Hagen, Carmen Argmann, Ronald Wanders, Riekelt H Houtkooper, Markus W Hollmann, Sander M Houten, Coert J Zuurbier
OBJECTIVE: Cardiac hexokinase II (HKII) can translocate between cytosol and mitochondria and change its cellular expression with pathologies such as ischemia-reperfusion, diabetes and heart failure. The cardiac metabolic consequences of these changes are unknown. Here we measured energy substrate utilization in cytosol and mitochondria using stabile isotopes and oxygen consumption of the intact perfused heart for 1) an acute decrease in mitochondrial HKII (mtHKII), and 2) a chronic decrease in total cellular HKII...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28641602/milk-replacers-supplemented-with-either-l-arginine-or-l-carnitine-potentially-improve-muscle-maturation-of-early-reared-low-birth-weight-piglets-from-hyperprolific-sows
#13
J G Madsen, S Mueller, M Kreuzer, M B Bigler, P Silacci, G Bee
As a result of the selection for genotypes with greater sow prolificacy, litter size increased and, concomitantly, average litter birth weight and early postnatal survival rates of low birth weight (L-BtW) offspring decreased. This study compared the impact of l-carnitine (CAR) and l-arginine (ARG) supplemented with a milk replacer and fed to L-BtW piglets born from large litters from days 7 to 28 of age on growth performance, carcass composition, organ and Semitendinosus muscle (STM) development. A total of 30 female and castrated Swiss Large White piglets weaned at 7 days of age were assigned to three milk replacer diets containing either no supplement (CON), CAR (0...
June 23, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28629076/effect-of-acute-and-long-term-administration-of-gold-nanoparticles-on-biochemical-parameters-in-rat-brain
#14
Gabriela K Ferreira, Eria Cardoso, Francieli Silva Vuolo, Letícia Selinger Galant, Monique Michels, Cinara L Gonçalves, Gislaine Tezza Rezin, Felipe Dal-Pizzol, Roberto Benavides, Gabriel Alonso-Núñez, Vanessa Moraes Andrade, Emilio L Streck, Marcos Marques da Silva Paula
The present study investigated stress oxidative parameters and activities of enzymes of the energy metabolism in various brain structures. Rats were subjected to acute and long-term administration of gold nanoparticles (GNPs) with mean diameters of 10nm and 30nm. Adult (60days old) male Wistar rats received a single intraperitoneal injection (acute administration; 70μg·kg(-1)) or repeated injections once daily for 28days (long-term administration; 70μg·kg(-1)) of saline solution or GNPs (10nm or 30nm). Twenty-four hours after administration of the final dose, the animals were killed and the cerebral structures were isolated for enzyme analysis...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28624490/bioenergetics-dysfunction-mitochondrial-permeability-transition-pore-opening-and-lipid-peroxidation-induced-by-hydrogen-sulfide-as-relevant-pathomechanisms-underlying-the-neurological-dysfunction-characteristic-of-ethylmalonic-encephalopathy
#15
Gabriela Miranda Fernandez Cardoso, Julia Tauana Pletsch, Belisa Parmeggiani, Mateus Grings, Nícolas Manzke Glanzel, Larissa Daniele Bobermin, Alexandre Umpierrez Amaral, Moacir Wajner, Guilhian Leipnitz
Hydrogen sulfide (sulfide) accumulates at high levels in brain of patients with ethylmalonic encephalopathy (EE). In the present study, we evaluated whether sulfide could disturb energy and redox homeostasis, and induce mitochondrial permeability transition (mPT) pore opening in rat brain aiming to better clarify the neuropathophysiology of EE. Sulfide decreased the activities of citrate synthase and aconitase in rat cerebral cortex mitochondria, and of creatine kinase (CK) in rat cerebral cortex, striatum and hippocampus supernatants...
June 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28616072/the-advanced-strategy-for-enhancing-biobutanol-production-and-high-efficient-product-recovery-with-reduced-wastewater-generation
#16
Chuang Xue, Xiaotong Zhang, Jufang Wang, Min Xiao, Lijie Chen, Fengwu Bai
BACKGROUND: Butanol as an important chemical and potential fuel could be produced via ABE fermentation from lignocellulosic biomass. The use of food-related feedstocks such as maize and sugar cane may not be a sustainable solution to world's energy needs. Recently, Jerusalem artichoke tubers containing inulin have been used as feedstock for butanol production, but this bioprocess is not commercially feasible due to the great value of inulin as functional food. Till now, there is a gap on the utilization of Jerusalem artichoke stalk (JAS) as feedstock for microbial butanol production...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28616059/supramolecular-structure-of-dietary-fat-in-early-life-modulates-expression-of-markers-for-mitochondrial-content-and-capacity-in-adipose-tissue-of-adult-mice
#17
Andrea Kodde, Eline M van der Beek, Esther Phielix, Eefje Engels, Lidewij Schipper, Annemarie Oosting
BACKGROUND: Previous studies have shown that early life nutrition can modulate the development of white adipose tissue and thereby affect the risk on obesity and metabolic disease later in life. For instance, postnatal feeding with a concept infant milk formula with large, phospholipid coated lipid droplets (Concept, Nuturis®), resulted in reduced adiposity in adult mice. The present study investigated whether differences in cell energy metabolism, using markers of mitochondrial content and capacity, may contribute to the observed effects...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28596784/indy-a-new-link-to-metabolic-regulation-in-animals-and-humans
#18
REVIEW
Blanka Rogina
The Indy (I'm Not Dead Yet) gene encodes the fly homolog of the mammalian SLC13A5 citrate transporter. Reduced expression of the Indy gene in flies and worms extends their longevity. INDY is expressed in the plasma membrane of metabolically active tissues. Decreased expression of Indy in worms, flies, mice, and rats alters metabolism in a manner similar to calorie restriction. Reducing INDY activity prevents weight gain in flies, worms, and mice, and counteracts the negative effects of age or a high fat diet on metabolism and insulin sensitivity...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28593769/structure-and-dynamics-of-a-n-methylfulleropyrrolidine-mediated-gold-nanocomposite-a-spectroscopic-ruler
#19
Sanjeeb Sutradhar, Archita Patnaik
A mechanistic understanding of the structure and dynamics of a chemically tunable N-methylfulleropyrrolidine (8-NMFP)-assisted gold nanocomposite and its aggregation via a controllable interparticle interaction is reported as a function of the molar ratio and pH of the medium. Electronic structure calculations adopting density functional theory methods implied electrostatic interactions to play a dominant role between 8-NMFP and citrate-capped gold nanoparticles. MM(+) molecular mechanics force field computations revealed intermolecular gold-gold interactions, contributing toward the formation of spherical composite aggregates...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28592702/a-past-and-present-overview-of-macrophage-metabolism-and-functional-outcomes
#20
REVIEW
Rui Curi, Renata de Siqueira Mendes, Luiz Aurélio de Campos Crispin, Giuseppe Danilo Norata, Sandra Coccuzzo Sampaio, Philip Newsholme
In 1986 and 1987, Philip Newsholme et al. reported macrophages utilize glutamine, as well as glucose, at high rates. These authors measured key enzyme activities and consumption and production levels of metabolites in incubated or cultured macrophages isolated from the mouse or rat intraperitoneal cavity. Metabolic pathways essential for macrophage function were then determined. Macrophages utilize glucose to generate (i) ATP in the pathways of glycolysis and mitochondrial oxidative phosphorylation, (ii) glycerol 3-phosphate for the synthesis of phospholipids and triacylglycerols, (iii) NADPH for the production of reactive oxygen species (ROS) and (iv) ribose for the synthesis of RNA and subsequently production and secretion of protein mediators (e...
June 15, 2017: Clinical Science (1979-)
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