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https://www.readbyqxmd.com/read/29049348/chronic-administration-of-fluoxetine-and-pro-inflammatory-cytokine-change-in-a-rat-model-of-depression
#1
Yanxia Lu, Cyrus S Ho, Xin Liu, Anna N Chua, Wei Wang, Roger S McIntyre, Roger C Ho
This study evaluated the chronic effects of fluoxetine, a commonly prescribed SSRI antidepressant, on the peripheral and central levels of inflammatory cytokines including IL-1β, IL-6, TNF-α and IL-17 over a 4-interval in a rat model of chronic mild stress (CMS) which resembles the human experience of depression. Twenty-four Sprague-Dawley rats were randomly assigned to CMS+vehicle (n = 9), CMS+fluoxetine (n = 9) and the control (n = 6) groups. Sucrose preference and forced swim tests were performed to assess behavioral change...
2017: PloS One
https://www.readbyqxmd.com/read/29048540/long-read-sequencing-of-the-coffee-bean-transcriptome-reveals-the-diversity-of-full-length-transcripts
#2
Bing Cheng, Agnelo Furtado, Robert J Henry
Background: Polyploidization contributes to the complexity of gene expression resulting in numerous related but different transcripts. This study explored the transcriptome diversity and complexity of tetraploid Arabica coffee ( Coffea arabica ) bean. Long-read sequencing (LRS) by Pacbio Isoform sequencing (Iso-seq) was used to obtain full-length transcripts without the difficulty and uncertainty of assembly required for reads from short read technologies. The tetraploid transcriptome was annotated and compared with data from the sub-genome progenitors...
August 30, 2017: GigaScience
https://www.readbyqxmd.com/read/29048462/obesity-induced-vascular-dysfunction-and-arterial-stiffening-requires-endothelial-cell-arginase-1
#3
Anil Bhatta, Lin Yao, Zhimin Xu, Haroldo A Toque, Jijun Chen, Reem T Atawia, Abdelrahman Y Fouda, Zsolt Bagi, Rudolf Lucas, Ruth B Caldwell, Robert W Caldwell
Aims: Elevation of arginase activity has been linked to vascular dysfunction in diabetes and hypertension by a mechanism involving decreased nitric oxide (NO) bioavailability due to L-arginine depletion. Excessive arginase activity also can drive L-arginine metabolism towards the production of ornithine, polyamines, and proline, promoting proliferation of vascular smooth muscle cells and collagen formation, leading to perivascular fibrosis. We hypothesized that there is a specific involvement of arginase 1 expression within the vascular endothelial cells in this pathology...
September 7, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29047017/effect-of-arginine-on-the-aggregation-of-protein-in-freeze-dried-formulations-containing-sugars-and-polyol-1-formulation-development
#4
Ellen Hackl, Joseph Darkwah, Geoff Smith, Irina Ermolina
L-arginine was introduced into protein-based freeze-dried formulations to study the ability of arginine to reduce/prevent from protein aggregation during manufacturing, storage and reconstitution of lyophilized protein-based pharmaceuticals. As L-arginine is known to be very hygroscopic, additional excipients which could provide a moisture buffering capacity need to be introduced into the formulation. In the first part of our study-excipient formulation development-the screening of a number of sugars/polyols has been done in order to select the best combination of excipients that, in a complex with L-arginine, can (i) produce freeze-dried cakes with elegant appearance, adequate mechanical properties and reconstitution times, and (ii) resist/minimise the moisture sorption...
October 18, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29045570/optogenetic-activation-of-the-infralimbic-cortex-suppresses-the-return-of-appetitive-pavlovian-conditioned-responding-following-extinction
#5
Franz R Villaruel, Franca Lacroix, Christian Sanio, Daniel W Sparks, C Andrew Chapman, Nadia Chaudhri
The infralimbic medial prefrontal cortex (IL) is important for suppressing learned behavior after extinction, but whether this function extends to responses acquired through appetitive Pavlovian conditioning is unclear. We trained male, Long-Evans rats to associate a white-noise conditional stimulus (CS; 10 s; 14 presentations per session) with 10% liquid sucrose (0.2 mL per CS presentation), and recorded entries into the fluid port during the CS. The CS was presented without sucrose in subsequent extinction and test sessions...
October 17, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29044312/effect-of-carbon-source-on-production-characterization-and-bioactivity-of-exopolysaccharide-produced-by-phellinus-vaninii-ljup
#6
Chunping Xu, Jinwei Yu, Shanshan Zhao, Shungshung Wu, Peixin He, Xuewei Jia, Yanqi Liu, Duobin Mao
The effect on different three carbon source (i.e. glucose, fructose and sucrose) on production, chemical characterization and antioxidant activity of exopolysaccharide (EPS) produced by Phellinus vaninii Ljup was investigated in this study. Amongst carbon sources examined, glucose and sucrose were favorable for the mycelia growth, while the maximum EPS yield was achieved when sucrose was employed. The predominant carbohydrate compositions in EPSs identified were gluconic acid, glucose, mannose and galactose acid...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29044155/enterococci-mediate-the-oviposition-preference-of-drosophila-melanogaster-through-sucrose-catabolism
#7
Wei Liu, Ke Zhang, Yujuan Li, Wanzhen Su, Kunkun Hu, Shan Jin
Sucrose, one of the main products of photosynthesis in plants, functions as a universal biomarker for nutritional content and maturity of different fruits across diverse ecological niches. Drosophila melanogaster congregates to lay eggs in rotting fruits, yet the factors that influence these decisions remains uncovered. Here, we report that lactic acid bacteria Enterococci are critical modulators to attract Drosophila to lay eggs on decaying food. Drosophila-associated Enterococci predominantly catabolize sucrose for growing their population in fly food, and thus generate a unique ecological niche with depleted sucrose, but enriched bacteria...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042247/murine-genetic-variance-in-muscarinic-cholinergic-receptor-antagonism-of-sucrose-and-saccharin-solution-intakes-in-three-inbred-mouse-strains
#8
Faye Bourie, Kerstin Olsson, Ben Iskhakov, Agata Buras, Gabriela Fazilov, Merna Shenouda, Julia Zhezherya, Richard J Bodnar
Nutritive (e.g., sucrose) and non-nutritive (e.g., saccharin) sweeteners stimulate intake in inbred mouse strains. BALB/c, SWR and C57BL/6 mice differ in the ability of dopamine (DA) D1 (SCH23390) and opioid (naltrexone) receptor antagonism to alter sucrose intake. Whereas SCH23390 comparably reduced cumulative sucrose intake in all three strains, naltrexone reduced cumulative sucrose intake maximally in C57/BL/6 mice, in intermediate fashion in BALB/c mice, but not in SWR mice. Whereas cumulative saccharin intake was reduced by DA D1 receptor antagonism in BALB/c and SWR mice, naltrexone was more potent in SWR relative to BALB/c mice...
October 14, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29040832/biological-evaluation-of-surface-modified-magnetic-nanoparticles-as-a-platform-for-colon-cancer-cell-theranostics
#9
Maksym Moskvin, Michal Babič, Salette Reis, M Margarida Cruz, Liliana P Ferreira, Maria Deus Carvalho, Sofia A Costa Lima, Daniel Horák
Magnetic nanoparticles offer multiple possibilities for biomedical applications. Besides their physico-chemical properties, nanoparticle-cellular interactions are determinant for biological safety. In this work, magnetic nanoparticles were synthesized by one-shot precipitation or two-step reaction and coated with biocompatible polymers, such as poly(l-lysine) and poly(N,N-dimethylacrylamide-co-acrylic acid), and carbohydrates, like l-ascorbic acid, d-galactose, d-mannose, and sucrose. The resulting magnetic nanoparticles were characterized by dynamic light scattering, FT-Raman spectroscopy, transmission electron microscopy, SQUID magnetometry, and Mössbauer spectroscopy...
October 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29040685/a-pooled-analysis-of-dietary-sugar-carbohydrate-intake-and-esophageal-and-gastric-cardia-adenocarcinoma-incidence-and-survival-in-the-usa
#10
Nan Li, Jessica L Petrick, Susan E Steck, Patrick T Bradshaw, Kathleen M McClain, Nicole M Niehoff, Lawrence S Engel, Nicholas J Shaheen, Harvey A Risch, Thomas L Vaughan, Anna H Wu, Marilie D Gammon
Background: During the past 40 years, esophageal/gastric cardia adenocarcinoma (EA/GCA) incidence increased in Westernized countries, but survival remained low. A parallel increase in sugar intake, which may facilitate carcinogenesis by promoting hyperglycaemia, led us to examine sugar/carbohydrate intake in association with EA/GCA incidence and survival. Methods: We pooled 500 EA cases, 529 GCA cases and 2027 controls from two US population-based case-control studies with cases followed for vital status...
September 23, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29038916/functional-characterization-of-chloroplast-targeted-rbga-gtpase-in-higher-plants
#11
Young Jeon, Hee-Kyung Ahn, Yong Won Kang, Hyun-Sook Pai
Plant RbgA GTPase is targeted to chloroplasts and co-fractionated with chloroplast ribosomes, and plays a role in chloroplast rRNA processing and/or ribosome biogenesis. Ribosome Biogenesis GTPase A (RbgA) homologs are evolutionarily conserved GTPases that are widely distributed in both prokaryotes and eukaryotes. In this study, we investigated functions of chloroplast-targeted RbgA. Nicotiana benthamiana RbgA (NbRbgA) and Arabidopsis thaliana RbgA (AtRbgA) contained a conserved GTP-binding domain and a plant-specific C-terminal domain...
October 16, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/29038598/male-specific-deficits-in-natural-reward-learning-in-a-mouse-model-of-neurodevelopmental-disorders
#12
N M Grissom, S E McKee, H Schoch, N Bowman, R Havekes, W T O'Brien, E Mahrt, S Siegel, K Commons, C Portfors, T Nickl-Jockschat, T M Reyes, T Abel
Neurodevelopmental disorders, including autism spectrum disorders, are highly male biased, but the underpinnings of this are unknown. Striatal dysfunction has been strongly implicated in the pathophysiology of neurodevelopmental disorders, raising the question of whether there are sex differences in how the striatum is impacted by genetic risk factors linked to neurodevelopmental disorders. Here we report male-specific deficits in striatal function important to reward learning in a mouse model of 16p11.2 hemideletion, a genetic mutation that is strongly associated with the risk of neurodevelopmental disorders, particularly autism and attention-deficit hyperactivity disorder...
October 17, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29037980/improved-stability-of-live-attenuated-vaccine-gdha-derivative-pasteurella-multocida-b-2-by-freeze-drying-method-for-use-as-animal-vaccine
#13
Siti Nur Hazwani Oslan, Murni Halim, Nurfahanah Amirah Ramle, Mohd Zamri Saad, Joo Shun Tan, Mohd Rizal Kapri, Arbakariya B Ariff
The efficacy of attenuated strain of gdhA derivative Pasteurella multocida B:2 mutant as a live vaccine to control haemorrhagic septicaemia (HS) disease in cattle and buffaloes has been demonstrated. In order to use P. multocida B:2 mutant as a commercial product, it is essential to optimise its formulation for high viability and stability of the live cells. The effectiveness of freeze-drying process using different protective agent formulations for improving cells viability was explored. Sugar and nitrogen compounds were used as protective agents in freeze-drying and the capability of these compounds in maintaining the viability of mutant P...
October 13, 2017: Cryobiology
https://www.readbyqxmd.com/read/29037780/bio-based-succinate-from-sucrose-high-resolution-13-c-metabolic-flux-analysis-and-metabolic-engineering-of-the-rumen-bacterium-basfia-succiniciproducens
#14
Anna Lange, Judith Becker, Dennis Schulze, Edern Cahoreau, Jean-Charles Portais, Stefan Haefner, Hartwig Schröder, Joanna Krawczyk, Oskar Zelder, Christoph Wittmann
Succinic acid is a platform chemical of recognized industrial value and accordingly faces a continuous challenge to enable manufacturing from most attractive raw materials. It is mainly produced from glucose, using microbial fermentation. Here, we explore and optimize succinate production from sucrose, a globally applied substrate in biotechnology, using the rumen bacterium Basfia succiniciproducens DD1. As basis of the strain optimization, the yet unknown sucrose metabolism of the microbe was studied, using (13)C metabolic flux analyses...
October 13, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/29037599/neural-basis-of-ventromedial-hypothalamic-oxytocin-driven-decrease-in-appetite
#15
Oscar A Klockars, Joseph R Waas, Anica Klockars, Allen S Levine, Pawel K Olszewski
OBJECTIVES: Oxytocin (OT) administration in the ventromedial hypothalamic nucleus (VMH) reduces chow intake. The nature of VMH OT's anorexigenic action remains unclear. Here we provide insight into neural mechanisms underlying VMH OT-driven anorexia by (a) identifying feeding-related brain sites activated by VMH OT injection; (b) measuring VMH OT receptor (OTr) mRNA changes in response to hunger and palatability; and (c) examining how VMH OT affects episodic sweet solution intake in sated and hungry rats...
October 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/29036673/enhanced-desiccation-tolerance-in-mature-cultures-of-the-streptophytic-green-alga-zygnema-circumcarinatum-revealed-by-transcriptomics
#16
Martin Rippin, Burkhard Becker, Andreas Holzinger
Desiccation tolerance is commonly regarded as one of the key features for the colonization of terrestrial habitats by green algae and the evolution of land plants. Extensive studies, focused mostly on physiology, have been carried out assessing the desiccation tolerance and resilience of the streptophytic genera Klebsormidium and Zygnema. Here we present transcriptomic analyses of Zygnema circumcarinatum exposed to desiccation stress. Cultures of Z. circumcarinatum, grown in liquid medium or on agar plates, were desiccated at ∼86% relative air humidity until Y(II) ceased...
September 22, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29036669/comparative-genome-and-transcriptome-analyses-reveal-adaptations-to-opportunistic-infections-in-woody-plant-degrading-pathogens-of-botryosphaeriaceae
#17
Ji Ye Yan, Wen Sheng Zhao, Zhen Chen, Qi Kai Xing, Wei Zhang, K W Thilini Chethana, Min Feng Xue, Jian Ping Xu, Alan J L Phillips, Yong Wang, Jian Hua Liu, Mei Liu, Ying Zhou, Ruvishika S Jayawardena, Ishara S Manawasinghe, Jin Bao Huang, Guang Hang Qiao, Chun Yuan Fu, Fei Fei Guo, Asha J Dissanayake, You Liang Peng, Kevin D Hyde, Xing Hong Li
Botryosphaeriaceae are an important fungal family that cause woody plant diseases worldwide. Recent studies have established a correlation between environmental factors and disease expression; however, less is known about factors that trigger these diseases. The current study reports on the 43.3 Mb de novo genome of Lasiodiplodia theobromae and five other genomes of Botryosphaeriaceae pathogens. Botryosphaeriaceous genomes showed an expansion of gene families associated with cell wall degradation, nutrient uptake, secondary metabolism and membrane transport, which contribute to adaptations for wood degradation...
October 3, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/29036235/-medicaments-and-oral-healthcare-5-adverse-effects-of-medications-and-over-the-counter-drugs-on-teeth
#18
C de Baat, P G M A Zweers, C van Loveren, A Vissink
Intrinsic tooth discoloration may occur as an adverse effect of fluoride and tetracyclines. Extrinsic tooth discoloration may occur as superficial staining or as discoloration of the superficial pellicle and/or biofilm due to chlorhexidine, liquid iron salts, essential oils, some antibiotics and stannous fluoride. Inhibition of orthodontic tooth movement has been reported due to the use of prostaglandin synthetase inhibitors. If medications or over-the-counter drugs induce hyposalivation or contain much sucrose, caries may develop...
October 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/29036229/cloning-and-characterization-of-the-cerasus-humilis-sucrose-phosphate-synthase-gene-chsps1
#19
Juan Wang, Junjie Du, Xiaopeng Mu, Pengfei Wang
Sucrose is crucial to the growth and development of plants, and sucrose phosphate synthase (SPS) plays a key role in sucrose synthesis. To understand the genetic and molecular mechanisms of sucrose synthesis in Cerasus humilis, ChSPS1, a homologue of SPS, was cloned using RT-PCR. Sequence analysis showed that the open reading frame (ORF) sequence of ChSPS1 is 3174 bp in length, encoding a predicted protein of 1057 amino acids. The predicted protein showed a high degree of sequence identity with SPS homologues from other species...
2017: PloS One
https://www.readbyqxmd.com/read/29035889/inhibition-of-suicidal-erythrocyte-death-by-volasertib
#20
Abdulla Al Mamun Bhuyan, A K M Ashiqul Haque, Itishri Sahu, Hang Cao, Michael S D Kormann, Florian Lang
BACKGROUND/AIMS: The Polo-like kinase 1 (Plk1) inhibitor volasertib is used in the treatment of malignancy. Volasertib is partially effective by triggering suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal cell death or eryptosis, which is characterized by cell membrane scrambling with phosphatidylserine translocation to the cell surface and by cell shrinkage. Stimulators of eryptosis include energy depletion, hyperosmotic shock, oxidative stress and excessive increase of cytosolic Ca2+ activity ([Ca2+]i)...
October 16, 2017: Cellular Physiology and Biochemistry
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