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https://www.readbyqxmd.com/read/28088019/melatonin-and-resveratrol-reverse-the-toxic-effect-of-high-boron-b-and-modulate-biochemical-parameters-in-pepper-plants-capsicum-annuum-l
#1
Eleana Sarafi, Pavlos Tsouvaltzis, Christos Chatzissavvidis, Anastasios Siomos, Ioannis Therios
The objectives of this research were to test a possible involvement of melatonin (MEL) and resveratrol (RES) in restoring growth and to control boron (B) toxicity in peppers. The plants were subjected to four different nutrient solution treatments as following: 1) half-strength Hoagland's nutrient solution (Control), 2) half-strength Hoagland's nutrient solution+100 μM B (100 μMB), 3) half-strength Hoagland's nutrient solution+100 μM boron+100 μMresveratrol (100 μMRES), and 4) half-strength Hoagland's nutrient solution+100 μM B+1 μMmelatonin (1 μM MEL)...
December 23, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28087946/invasion-of-host-cells-and-tissues-by-uropathogenic-bacteria
#2
Adam J Lewis, Amanda C Richards, Matthew A Mulvey
Within the mammalian urinary tract uropathogenic bacteria face many challenges, including the shearing flow of urine, numerous antibacterial molecules, the bactericidal effects of phagocytes, and a scarcity of nutrients. These problems may be circumvented in part by the ability of uropathogenic Escherichia coli and several other uropathogens to invade the epithelial cells that line the urinary tract. By entering host cells, uropathogens can gain access to additional nutrients and protection from both host defenses and antibiotic treatments...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087923/enhanced-aerobic-sludge-granulation-by-seeding-concentrated-activated-sludge-with-ca-alginate-gel
#3
Can Sun
The present study focuses on the effect of Ca-alginate gel on aerobic sludge granulation. Three sequencing batch reactors (SBRs) seeded with different mixtures of Ca-alginate gel and activated sludge with the fraction (weight/weight of dry biomass) of 0%, 5.5% and 15.5% respectively. The granulation time of 14 days was obtained with 5.5% additive, whilst 32 days were needed to adapt aerobic granules developed with 0% Ca-alginate gel. Full granulation was achieved in the trial with 15.5% additive from the 20th day...
December 9, 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28087763/circadian-kinetics-of-cell-cycle-progression-in-adult-neurogenic-niches-of-a-diurnal-vertebrate
#4
Veronica Akle, Alexander J Stankiewicz, Vasili Kharchenko, Lili Yu, Peter V Kharchenko, Irina V Zhdanova
: The circadian system may regulate adult neurogenesis via intracellular molecular clock mechanisms or by modifying the environment of neurogenic niches, with daily variation in growth factors or nutrients depending on the animal's diurnal or nocturnal life-style. In a diurnal vertebrate, zebrafish, we studied circadian distribution of immunohistochemical markers of the cell division cycle (CDC) in five of the sixteen neurogenic niches of adult brain, the dorsal telencephalon, habenula, preoptic area, hypothalamus and cerebellum...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28087662/terpenoids-in-plant-and-arbuscular-mycorrhiza-reinforced-defence-against-herbivorous-insects
#5
REVIEW
Esha Sharma, Garima Anand, Rupam Kapoor
BACKGROUND: Plants, though sessile, employ various strategies to defend themselves against herbivorous insects and convey signals of an impending herbivore attack to other plant(s). Strategies include the production of volatiles that include terpenoids and the formation of symbiotic associations with fungi, such as arbuscular mycorrhiza (AM). This constitutes a two-pronged above-ground/below-ground attack-defence strategy against insect herbivores. SCOPE: Terpenoids represent an important constituent of herbivore-induced plant volatiles that deter herbivores and/or attract their predators...
January 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28087597/membrane-depolarizing-channel-blockers-induce-selective-glioma-cell-death-by-impairing-nutrient-transport-and-unfolded-protein-amino-acid-responses
#6
Mia Niklasson, Gianluca Maddalo, Zuzana Sramkova, Ercan Mutlu, Shimei Wee, Petra Sekyrova, Linnéa Schmidt, Nicolas Fritz, Ivar Dehnisch, Gregorios Kyriatzis, Michaela Krafcikova, Brittany B Carson, Jennifer Feenstra, Voichita D Marinescu, Anna Segerman, Martin Haraldsson, Anna-Lena Gustavsson, Lars Gj Hammarström, Annika Jenmalm-Jensen, Lene Uhrbom, A F Maarten Altelaar, Sten Linnarsson, Per Uhlén, Lukas Trantirek, C Theresa Vincent, Sven Nelander, Per Øyvind Enger, Michael Andäng
Glioma-initiating cells (GIC) are considered the underlying cause of recurrences of aggressive glioblastomas, replenishing the tumor population and undermining the efficacy of conventional chemotherapy. Here we report the discovery that inhibiting T-type voltage-gated Ca2+ and KCa channels can effectively induce selective cell death of GIC and increase host survival in an orthotopic mouse model of human glioma. At present, the precise cellular pathways affected by the drugs affecting these channels are unknown...
January 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/28087444/the-mechanistic-role-of-chemically-diverse-metal-ions-in-the-induction-of-autophagy
#7
REVIEW
Sumit Sahni, Dong-Hun Bae, Patric Jansson, Des Richardson
Autophagy is an evolutionary conserved cellular catabolic degradation process in response to stress which involves lysosomal degradation of unnecessary or damaged organelles and misfolded proteins. This is primarily a pro-survival pathway providing the cell with essential nutrients during stressful conditions. There are number of essential metal ions, which are required for normal physiological functioning of cells. Studies have shown that autophagy can be regulated by cellular metal ion concentrations. On the other hand, autophagy is also shown to regulate intracellular levels of certain metal ions...
January 10, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28087344/up-regulation-of-the-active-form-of-small-gtpase-rab13-promotes-macroautophagy-in-vascular-endothelial-cells
#8
Lu Zhang, Fang Dai, LiuQing Cui, Bo Zhou, YuQi Guo
The importance of macroautophagy (hereafter referred to as autophagy) in vascular endothelial cell (VEC) biology and dysfunction is increasingly recognized, but the molecular mechanisms of autophagy in VECs in the presence of serum are still poorly understood. Previously, we identified pterostilbene as a potent autophagy inducer of VECs in the presence of serum. In this study, we used pterostilbene as a tool to induce VEC autophagy and identified the differentially expressed genes using high-throughput DAN microarray...
January 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28086890/feasibility-and-preliminary-efficacy-of-the-heyman-healthy-lifestyle-program-for-young-men-a-pilot-randomised-controlled-trial
#9
Lee M Ashton, Philip J Morgan, Melinda J Hutchesson, Megan E Rollo, Clare E Collins
BACKGROUND: In young men, unhealthy lifestyle behaviours can be detrimental to their physical and/or mental health and set them on a negative health trajectory into adulthood. Despite this, there is a lack of evidence to guide development of effective health behaviour change interventions for young men. This study assessed the feasibility and preliminary efficacy of the 'HEYMAN' (Harnessing Ehealth to enhance Young men's Mental health, Activity and Nutrition) healthy lifestyle program for young men...
January 13, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28086790/rna-sequencing-for-global-gene-expression-associated-with-muscle-growth-in-a-single-male-modern-broiler-line-compared-to-a-foundational-barred-plymouth-rock-chicken-line
#10
Byung-Whi Kong, Nicholas Hudson, Dongwon Seo, Seok Lee, Bhuwan Khatri, Kentu Lassiter, Devin Cook, Alissa Piekarski, Sami Dridi, Nicholas Anthony, Walter Bottje
BACKGROUND: Modern broiler chickens exhibit very rapid growth and high feed efficiency compared to unselected chicken breeds. The improved production efficiency in modern broiler chickens was achieved by the intensive genetic selection for meat production. This study was designed to investigate the genetic alterations accumulated in modern broiler breeder lines during selective breeding conducted over several decades. METHODS: To identify genes important in determining muscle growth and feed efficiency in broilers, RNA sequencing (RNAseq) was conducted with breast muscle in modern pedigree male (PeM) broilers (n = 6 per group), and with an unselected foundation broiler line (Barred Plymouth Rock; BPR)...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28086748/genetic-mechanisms-of-bone-digestion-and-nutrient-absorption-in-the-bone-eating-worm-osedax-japonicus-inferred-from-transcriptome-and-gene-expression-analyses
#11
Norio Miyamoto, Masa-Aki Yoshida, Hiroyuki Koga, Yoshihiro Fujiwara
BACKGROUND: Bone-eating worms of the genus Osedax (Annelida, Siboglinidae) have adapted to whale fall environments by acquiring a novel characteristic called the root, which branches and penetrates into sunken bones. The worms lack a digestive tract and mouth opening, and it has been suggested that Osedax degrade vertebrate bones and uptake nutrients through acidification and secretion of enzymes from the root. Symbiotic bacteria in the root tissue may have a crucial role in the metabolism of Osedax...
January 13, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28081236/a-key-marine-diazotroph-in-a-changing-ocean-the-interacting-effects-of-temperature-co2-and-light-on-the-growth-of-trichodesmium-erythraeum-ims101
#12
Tobias G Boatman, Tracy Lawson, Richard J Geider
Trichodesmium is a globally important marine diazotroph that accounts for approximately 60 - 80% of marine biological N2 fixation and as such plays a key role in marine N and C cycles. We undertook a comprehensive assessment of how the growth rate of Trichodesmium erythraeum IMS101 was directly affected by the combined interactions of temperature, pCO2 and light intensity. Our key findings were: low pCO2 affected the lower temperature tolerance limit (Tmin) but had no effect on the optimum temperature (Topt) at which growth was maximal or the maximum temperature tolerance limit (Tmax); low pCO2 had a greater effect on the thermal niche width than low-light; the effect of pCO2 on growth rate was more pronounced at suboptimal temperatures than at supraoptimal temperatures; temperature and light had a stronger effect on the photosynthetic efficiency (Fv/Fm) than did CO2; and at Topt, the maximum growth rate increased with increasing CO2, but the initial slope of the growth-irradiance curve was not affected by CO2...
2017: PloS One
https://www.readbyqxmd.com/read/28081189/global-gene-expression-analysis-of-cross-protected-phenotype-of-pectobacterium-atrosepticum
#13
Vladimir Gorshkov, Stanford Kwenda, Olga Petrova, Elena Osipova, Yuri Gogolev, Lucy N Moleleki
The ability to adapt to adverse conditions permits many bacterial species to be virtually ubiquitous and survive in a variety of ecological niches. This ability is of particular importance for many plant pathogenic bacteria that should be able to exist, except for their host plants, in different environments e.g. soil, water, insect-vectors etc. Under some of these conditions, bacteria encounter absence of nutrients and persist, acquiring new properties related to resistance to a variety of stress factors (cross-protection)...
2017: PloS One
https://www.readbyqxmd.com/read/28080325/adequacy-of-parent-packed-lunches-and-preschooler-s-consumption-compared-to-dietary-reference-intake-recommendations
#14
Maria Jose Romo-Palafox, Nalini Ranjit, Sara J Sweitzer, Cindy Roberts-Gray, Courtney E Byrd-Williams, Margaret E Briley, Deanna M Hoelscher
BACKGROUND: U.S. preschool children consume inadequate amounts of key nutrients. Understanding the contents of lunches packed by parents and consumed by their children can help identify areas of opportunity for the development of healthy food preferences. OBJECTIVE: To evaluate the nutrient adequacy of lunches packed by parents and consumed by children attending early care and education (ECE) centers. METHODS: Baseline data from 607 parent-child dyads in the "Lunch Is in the Bag" cluster-randomized controlled trial in Central Texas were examined...
January 12, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28080210/pathogen-control-at-the-intestinal-mucosa-h2o2-to-the-rescue
#15
Ulla G Knaus, Rosanne Hertzberger, Gratiela G Pircalabioru, S Parsa M Yousefi, Filipe Branco Dos Santos
Intestinal infections are a global challenge, connected to malnutrition and inadequate hygiene in developing countries, and to expanding antibiotic resistance in developed countries. In general, a healthy host is capable of fighting off gut pathogens or at least to recover from infections quickly. The underlying protective mechanism, termed colonization resistance, is provided by indigenous commensal communities (microbiota) that are shaped and aided by the host's epithelial and innate immune system. (1) Commensal-pathogen interactions are governed by competition for a suitable niche for replication and stable colonization, nutrient availability, species-specific alterations of the metabolic environment, changes in oxygen tension and release of chemicals and proteinaceous toxins (bacteriocins)...
January 12, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28079560/prenatal-exposures-and-the-development-of-childhood-wheezing-illnesses
#16
Christian Rosas-Salazar, Tina V Hartert
PURPOSE OF REVIEW: To critically evaluate and summarize studies published between July 2015 and June 2016 linking prenatal exposures and the onset of childhood wheezing illnesses and to discuss future research directions in this field. RECENT FINDINGS: The aggregated evidence indicates a consistent detrimental effect of prenatal exposure to parental smoking, outdoor air pollution, and maternal stress on childhood wheezing illnesses. Less consistent evidence suggests an adverse impact of maternal obesity during pregnancy and prenatal exposure to antibiotics on these outcomes...
January 11, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28079271/uptake-and-elimination-kinetics-of-the-biocide-triclosan-and-the-synthetic-musks-galaxolide-and-tonalide-in-the-earthworm-dendrobaena-veneta-when-exposed-to-sewage-sludge
#17
Ivo Havranek, Claire Coutris, Hans Ragnar Norli, Pierre-Adrien Rivier, Erik J Joner
Sewage sludge is an important amendment that enriches soils with organic matter and provides plants with nutrients such as nitrogen and phosphorus. However, knowledge on fate and effects of organic pollutants present in the sludge on soil organisms is limited. In the present study, the uptake of triclosan, galaxolide, and tonalide in the earthworm Dendrobaena veneta was measured one week after amendment of agricultural soil with sewage sludge, while elimination kinetics were assessed over a 21-day period after transferring worms to a clean soil...
January 12, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28079060/intranasal-lactoferrin-enhances-%C3%AE-secretase-dependent-amyloid-precursor-protein-processing-via-the-erk1-2-creb-and-hif-1%C3%AE-pathways-in-an-alzheimer-s-disease-mouse-model
#18
Chuang Guo, Zhao-Hui Yang, Shuai Zhang, Rui Chai, Han Xue, Yan-Hui Zhang, Jia-Yi Li, Zhan-You Wang
Growing evidence suggests that lactoferrin (Lf), an iron-binding glycoprotein, is a pleiotropic functional nutrient. Additionally, Lf was recently implicated as a neuroprotective agent. These properties make Lf a valuable therapeutic candidate for the treatment of Alzheimer's disease (AD). However, the mechanisms regulating the physiological roles of Lf in the pathologic condition of AD remain unknown. In the present study, an APPswe/PS1DE9 transgenic mouse model of AD was used. We explored whether intranasal human Lf (hLf) administration could reduce β-amyloid (Aβ) deposition and ameliorate cognitive decline in this AD model...
January 12, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28079051/integrated-crop-management-practices-for-maximizing-grain-yield-of-double-season-rice-crop
#19
Depeng Wang, Jianliang Huang, Lixiao Nie, Fei Wang, Xiaoxia Ling, Kehui Cui, Yong Li, Shaobing Peng
Information on maximum grain yield and its attributes are limited for double-season rice crop grown under the subtropical environment. This study was conducted to examine key characteristics associated with high yielding double-season rice crop through a comparison between an integrated crop management (ICM) and farmers' practice (FP). Field experiments were conducted in the early and late seasons in the subtropical environment of Wuxue County, Hubei Province, China in 2013 and 2014. On average, grain yield in ICM was 13...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078716/incorporating-food-web-dynamics-into-ecological-restoration-a-modeling-approach-for-river-ecosystems
#20
J Ryan Bellmore, Joseph R Benjamin, Michael Newsom, Jennifer A Bountry, Daniel Dombroski
Restoration is frequently aimed at the recovery of target species, but also influences the larger food web in which these species participate. Effects of restoration on this broader network of organisms can influence target species both directly and indirectly via changes in energy flow through food webs. To help incorporate these complexities into river restoration planning we constructed a model that links river food web dynamics to in-stream physical habitat and riparian vegetation conditions. We present an application of the model to the Methow River, Washington (USA), a location of on-going restoration aimed at recovering salmon...
January 12, 2017: Ecological Applications: a Publication of the Ecological Society of America
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