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https://www.readbyqxmd.com/read/28213443/changes-in-appetitive-associative-strength-modulates-nucleus-accumbens-but-not-orbitofrontal-cortex-neuronal-ensemble-excitability
#1
Joseph Ziminski, Sabine Hessler, Gabriella Margetts-Smith, Meike C Sieburg, Hans S Crombag, Eisuke Koya
Cues that predict the availability of food rewards influence motivational states and elicit food-seeking behaviors. If a cue no longer predicts food availability, animals may adapt accordingly by inhibiting food seeking responses. Sparsely activated sets of neurons, coined neuronal ensembles, have been shown to encode the strength of reward-cue associations. While alterations in intrinsic excitability have been shown to underlie many learning and memory processes, little is known about these properties specifically on cue-activated neuronal ensembles...
February 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28213267/ferulic-acid-inhibits-neuro-inflammation-in-mice-exposed-to-chronic-unpredictable-mild-stress
#2
Ya-Min Liu, Ji-Duo Shen, Li-Ping Xu, Han-Bing Li, Yu-Cheng Li, Li-Tao Yi
Ferulic acid is a hydroxycinnamic acid that widely presents in plant cell wall components. It has been demonstrated that ferulic acid can attenuate depressive-like behaviors in both forced swimming test and tail suspension test. Considering that depression is an inflammatory related mental disease, our present study was aimed to investigate the role of ferulic acid in the regulation of microglia activation, pro-inflammatory cytokines, nuclear factor kappa B (NF-κB) and nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome in mice exposed to chronic unpredictable mild stress (CUMS)...
February 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28213203/ghrelin-s-control-of-food-reward-and-body-weight-in-the-lateral-hypothalamic-area-is-sexually-dimorphic
#3
Lorena López-Ferreras, Jennifer E Richard, Rozita H Anderberg, Fredrik H Nilsson, Kajsa Olandersson, Scott E Kanoski, Karolina P Skibicka
Ghrelin is a stomach-produced hormone that stimulates ingestive behavior and increases motivated behavior to obtain palatable foods. Ghrelin receptors (growth hormone secretagogue receptors; Ghsr) are expressed in the lateral hypothalamic area (LHA), and LHA-targeted ghrelin application increases ingestive behavior in male rodents. However, the effects of LHA ghrelin signaling in females are unexplored. Here we investigated whether LHA ghrelin signaling is necessary and sufficient for control of ingestive and motivated behavior for food in male and female rats...
February 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28213180/biochemical-composition-of-symplastic-sap-from-sugarcane-genetically-modified-to-overproduce-proline
#4
Graciele Carraro Balestro, Bruna Higashi, Sheila Mara Sanches Lopes, José Eduardo Gonçalves, Luiz Gonzaga Esteves Vieira, Arildo José Braz de Oliveira, Regina Aparecida Correia Gonçalves
Global interest in sugarcane has increased significantly in recent years because of its economic impact on sustainable energy production. The purpose of the present study was to evaluate changes in the concentrations of total sugars, amino acids, free proline, and total proteins by colorimetric analyses and nuclear magnetic resonance (NMR) to perform a metabolic profiling of a water-soluble fraction of symplastic sap in response to the constitutive expression of a mutant Δ(1)-pyrroline-5-carboxylate synthetase (P5CS) gene from Vigna aconitifolia...
February 9, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28213148/interface-tuning-and-stabilization-of-monoglyceride-mesophase-dispersions-food-emulsifiers-and-mixtures-efficiency
#5
Sébastien Serieye, Fabienne Méducin, Irena Milošević, Ling Fu, Samuel Guillot
Several food surfactants were examined as possible efficient emulsifiers for liquid crystalline monolinolein-based particles and as alternative choices to the non-food-grade emulsifier conventionally used Pluronic® F127. We described a food emulsifiers' toolbox, investigating their ability to emulsify mesophases (stabilization capacity, particle size, zeta potential) and their impact on internal nanostructures (from swelling to drastic modifications). Among the selected surfactants, sucrose stearate (S1670) was found to be the best candidate for replacing in a long term F127 as an efficient stabilizer of lipid particles...
January 27, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28213136/systematic-development-of-a-two-stage-fed-batch-process-for-lipid-accumulation-in-rhodotorula-glutinis
#6
Eric Lorenz, Dennis Runge, Anna-Maria Marbà-Ardébol, Maximilian Schmacht, Ulf Stahl, Martin Senz
The application of oleaginous yeast cells as feed supplement, for instance in aqua culture, can be a meaningful alternative for fish meal and oil additives. Therefore, a two-stage fed-batch process split into growth and lipogenesis phase was systematically developed to enrich the oleaginous yeast Rhodotorula glutinis Rh-00301 with high amounts of lipids at industrial relevant biomasses. Thereby, the different carbon sources glucose, sucrose and glycerol were investigated concerning their abilities to serve as a suited raw material for growth and/or lipid accumulation...
February 14, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28212646/linking-long-non-coding-rnas-and-swi-snf-complexes-to-chromatin-remodeling-in-cancer
#7
REVIEW
Yanyan Tang, Jinpeng Wang, Yu Lian, Chunmei Fan, Ping Zhang, Yingfen Wu, Xiayu Li, Fang Xiong, Xiaoling Li, Guiyuan Li, Wei Xiong, Zhaoyang Zeng
Chromatin remodeling controls gene expression and signaling pathway activation, and aberrant chromatin structure and gene dysregulation are primary characteristics of human cancer progression. Recent reports have shown that long non-coding RNAs (lncRNAs) are tightly associated with chromatin remodeling. In this review, we focused on important chromatin remodelers called the switching defective/sucrose nonfermenting (SWI/SNF) complexes, which use the energy of ATP hydrolysis to control gene transcription by altering chromatin structure...
February 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28212464/oxytocin-reduces-ethanol-self-administration-in-mice
#8
Courtney E King, William C Griffin, Lauryn N Luderman, Malcolm M Kates, Jacqueline F McGinty, Howard C Becker
BACKGROUND: Excessive ethanol consumption remains an important health concern and effective treatments are lacking. The central oxytocin system has emerged as a potentially important therapeutic target for alcohol and drug addiction. These studies tested the hypothesis that oxytocin reduces ethanol consumption. METHODS: Male C57BL/6J mice were given access to ethanol (20% v/v) using a model of binge-like drinking ("drinking-in-the-dark") that also included the use of lickometer circuits to evaluate the temporal pattern of intake as well as 2-bottle choice drinking in the home cage...
February 17, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28212441/depressive-disorder-and-gastrointestinal-dysfunction-after-myocardial-infarct-are-associated-with-abnormal-tryptophan-5-hydroxytryptamine-metabolism-in-rats
#9
Xiaofang Lu, Yuefen Wang, Chunyan Liu, Yangang Wang
In this study, we investigated the relationship between tryptophan-5-hydroxytryptamine metabolism, depressive disorder, and gastrointestinal dysfunction in rats after myocardial infarction. Our goal was to elucidate the physiopathologic bases of somatic/psychiatric depression symptoms after myocardial infarction. A myocardial infarction model was established by permanent occlusion of the left anterior descending coronary artery. Depression-like behavior was evaluated using the sucrose preference test, open field test, and forced swim test...
2017: PloS One
https://www.readbyqxmd.com/read/28212324/differential-gene-expression-in-the-meristem-and-during-early-fruit-growth-of-pisum-sativum-l-identifies-potential-targets-for-breeding
#10
Annu Smitha Ninan, Anish Shah, Jiancheng Song, Paula E Jameson
For successful molecular breeding it is important to identify targets to the gene family level, and in the specific species of interest, in this case Pisum sativum L. The cytokinins have been identified as a key breeding target due to their influence on plant architecture, and on seed size and sink activity. We focused on the cytokinin biosynthetic gene family (the IPTs) and the gene family key to the destruction of cytokinins (the CKXs), as well as other gene families potentially affected by changing cytokinin levels...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28212110/the-impact-of-chewing-gum-on-halitosis-parameters-a-systematic-review
#11
Francisco Wilker Mustafa Gomes Muniz, Stephanie Anagnostopoulos Friedrich, Carina Folgearini Silveira, Cassiano Kuchenbecker Rösing
This study aimed to analyze the impact of chewing gum on halitosis parameters. Three databases were searched with the following focused question: 'Can chewing gum additionally reduce halitosis parameters, such as organoleptic scores and volatile sulfur compounds (VSC), when compared to a control treatment'? Controlled clinical trials presenting at least two halitosis measurements (organoleptic scores and/or VSC) were included. Ten studies were included, and different active ingredients were used. One study was performed using a chewing gum without any active ingredient...
February 17, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28211621/changes-in-sugar-content-and-related-enzyme-activities-in-table-grape-vitis-vinifera-l-in-response-to-foliar-selenium-fertilizer
#12
Shuaimeng Zhu, Yinli Liang, Xiaojuan An, Fanchao Kong, Dekai Gao, Hongfei Yin
BACKGROUND: Spraying Se fertilizer is an effective way for Se-enriched fruit production. Sugar content in fruit is the major factor determining berry quality. However, changes in sugar metabolism in response to Se fertilizer are unclear. Hence, this study was conducted to identify the effects of Se fertilizer on sugar metabolism and related enzyme activities of grape berries. Additionally, production of leaves with and without Se fertilizer was also investigated. RESULTS: Acid invertase (AI) activity, total soluble sugar and Se content in berries, photosynthetic rate (Pn) in leaves produced under Se fertilizer treatments were higher than that of control...
February 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28211363/nanowire-networks-and-hollow-nanospheres-of-ag-au-bimetallic-alloys-at-room-temperature
#13
R Britto Hurtado, M Cortez-Valadez, H Arizpe-Chávez, N S Flores-Lopez, Ramón A B Álvarez, M Flores-Acosta
Due to their physicochemical properties, metallic nanoalloys have potential applications in biomedicine, electrocatalysis and electrochemical sensors, among many other fields. New alternative procedures have emerged in order to reduce production costs and the use of toxic substances. In this study we present a novel low-toxicity synthesis method for the fabrication of nanowire networks (NWNs) and Ag-Au hollow nanospheres. The synthesis process is performed at room temperature without any sophisticated equipment, such as special cameras or furnaces, etc...
March 17, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28211103/impaired-learning-and-memory-in-rats-induced-by-a-high-fat-diet-involvement-with-the-imbalance-of-nesfatin-1-abundance-and-copine-6-expression
#14
Zheng Chen, Ya-Yun Xu, Rui Wu, Yin-Xiu Han, Yue Yu, Jin-Fang Ge, Fei-Hu Chen
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease, resulting not only in liver dysfunction, glucose and lipid metabolism disorder, but also in neuropsychiatric damage. In the present study, a NAFLD rat model was established via feeding of a high-fat diet, and the behavior was observed via the open field test (OFT), the sucrose preference test (SPT), the elevated plus maze (EPM), the forced swimming test (FST), and the Morris water maze (MWM). The plasma concentrations of alanine aminotransferase (ALT), glucose, free fatty acid (FFA), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were detected using chemiluminescence technique...
February 17, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28210212/differential-behavioral-and-neurobiological-effects-of-chronic-corticosterone-treatment-in-adolescent-and-adult-rats
#15
Jitao Li, Xiaomeng Xie, Youhong Li, Xiao Liu, Xuemei Liao, Yun-Ai Su, Tianmei Si
Adolescence is a critical period with ongoing maturational processes in stress-sensitive systems. While adolescent individuals show heightened stress-induced hormonal responses compared to adults, it is unclear whether and how the behavioral and neurobiological consequences of chronic stress would differ between the two age groups. Here we address this issue by examining the effects of chronic exposure to the stress hormone, corticosterone (CORT), in both adolescent and adult animals. Male Sprague-Dawley (SD) rats were injected intraperitoneally with CORT (40 mg/kg) or vehicle for 21 days during adolescence (post-natal day (PND) 29-49) or adulthood (PND 71-91) and then subjected to behavioral testing or sacrifice for western blot analyses...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28209499/blastocyst-development-after-intracytoplasmic-sperm-injection-of-equine-oocytes-vitrified-at-the-germinal-vesicle-stage
#16
Heloísa Siqueira Canesin, Joao Gatto Brom-de-Luna, Young-Ho Choi, Isabel Ortiz, Mouhamadou Diaw, Katrin Hinrichs
We evaluated the meiotic and developmental competence of GV-stage equine oocytes vitrified under different conditions. In a preliminary study, using dimethyl sulfoxide (D), ethylene glycol (EG) and sucrose (S) as cryoprotectants, the maturation rate was higher for cumulus-oocyte complexes (COCs) held overnight before vitrification (37%) than for those vitrified immediately (14%; P < 0.05). Thereafter, all COCs were held overnight before vitrification. In Experiment 1 we compared 1 min (1 m) and 4 min (4 m) exposure to vitrification and warming solutions; oocytes that subsequently matured were fertilized by ICSI...
February 13, 2017: Cryobiology
https://www.readbyqxmd.com/read/28209435/contribution-of-equilibrative-nucleoside-transporter-ent-2-to-fluorouracil-transport-in-rat-placental-trophoblast-cells
#17
Akinori Takagi, Tomohiro Nishimura, Tomoya Akashi, Masatoshi Tomi, Emi Nakashima
Fluorouracil is used for treatment of breast cancer even in pregnant women, except during fetal organogenesis. The purpose of this study was to clarify the transport mechanism of fluorouracil at the rat placental barrier. Maternal-to-fetal transfer of [(3)H]fluorouracil in rats at gestational day 19.5 was saturable and much higher than that of [(14)C]sucrose. The uptake of [(3)H]fluorouracil was also saturable in rat placental trophoblast TR-TBT 18d-1 cells, which express both equilibrative nucleoside transporter (ENT) 1 and ENT2...
December 8, 2016: Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28208765/synthesis-of-mono-and-di-glucosides-of-zearalenone-and-%C3%AE-%C3%AE-zearalenol-by-recombinant-barley-glucosyltransferase-hvugt14077
#18
Herbert Michlmayr, Elisabeth Varga, Francesca Lupi, Alexandra Malachová, Christian Hametner, Franz Berthiller, Gerhard Adam
Zearalenone (ZEN) is an estrogenic mycotoxin occurring in Fusarium-infected cereals. Glucosylation is an important plant defense mechanism and generally reduces the acute toxicity of mycotoxins to humans and animals. Toxicological information about ZEN-glucosides is limited due to the unavailability of larger amounts required for animal studies. HvUGT14077, a recently-validated ZEN-conjugating barley UDP-glucosyltransferase was expressed in Escherichia coli, affinity purified, and characterized. HvUGT14077 possesses high affinity (Km = 3 µM) and catalytic efficiency (kcat/Km = 190 s(-1)·mM(-1)) with ZEN...
February 9, 2017: Toxins
https://www.readbyqxmd.com/read/28208062/nano-suspension-coating-as-a-technique-to-modulate-the-drug-release-from-controlled-porosity-osmotic-pumps-for-a-soluble-agent
#19
Leila Azharshekoufeh Bahari, Yousef Javadzadeh, Mohammad Barzegar Jalali, Peyvand Johari, Ali Nokhodchi, Javad Shokri
In controlled porosity osmotic pumps (CPOP), usually finding a single solvent with a capability to dissolve both film former (hydrophobic) and pore former (hydrophilic) is extremely challenging. Therefore, the aim of the present investigation was to tackle the issue associated with controlled porosity osmotic pump (CPOP) system using nano-suspension coating method. In the present study 4-Amino pyridine was used as a highly water soluble drug. In this method, a hydrophilic pore former (sucrose or mannitol) in nano range was suspended in polymeric coating solution using ball-mill...
February 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28207272/controlling-the-release-of-indomethacin-from-glass-solutions-layered-with-a-rate-controlling-membrane-using-fluid-bed-processing-part-2-the-influence-of-formulation-parameters-on-drug-release
#20
Aswin Dereymaker, Jirka Pelgrims, Frederick Engelen, Peter Adriaensens, Guy Van den Mooter
This study aimed to investigate the pharmaceutical performance of an indomethacin-polyvinylpyrrolidone (PVP) glass solution applied using fluid bed processing as a layer on inert sucrose spheres, and subsequently top-coated with a release rate controlling membrane consisting of either ethyl cellulose or Eudragit RL. The implications of the addition of a pore former (PVP) and the coating medium (ethanol or water) on the diffusion and release behavior were also considered. In addition, the role of a charge interaction between drug and controlled release polymer on the release was investigated...
February 16, 2017: Molecular Pharmaceutics
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