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https://www.readbyqxmd.com/read/28651043/visualizing-the-contributions-of-virtual-states-to-two-photon-absorption-cross-sections-by-natural-transition-orbitals-of-response-transition-density-matrices
#1
Kaushik D Nanda, Anna I Krylov
Observables such as two-photon absorption cross-sections cannot be computed from the wave functions of the initial and final states alone because of their nonlinear nature. Rather, they depend on the entire manifold of the excited states, which follows from the familiar sum-over-states expressions of second- and higher-order properties. Consequently, the interpretation of the computed nonlinear optical properties in terms of molecular orbitals is not straightforward and usually relies on approximate few-states models...
June 26, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28650979/expression-of-cerebral-serotonin-related-to-anxiety-like-behaviors-in-c57bl-6-offspring-induced-by-repeated-subcutaneous-prenatal-exposure-to-low-dose-lipopolysaccharide
#2
Pei-Tan Hsueh, Hsuan-Han Wang, Chiu-Lin Liu, Wei-Fen Ni, Ya-Lei Chen, Jong-Kang Liu
Prenatal exposure to lipopolysaccharide (LPS), which likely occurs due to infection or contact with environmental allergens during pregnancy, is a proposed risk factor that induces anxiety- and autism spectrum disorder-like behaviors in offspring. However, the molecular and behavioral changes in offspring after maternal immune activation have not been completely identified. We hypothesized that a subcutaneous injection of LPS in a pregnant mouse would induce changes in cerebral serotonin (5-HT) in parallel to the appearance of anxiety-like behaviors in the dam's offspring...
2017: PloS One
https://www.readbyqxmd.com/read/28650785/clinical-performance-of-heat-cured-high-viscosity-glass-ionomer-class-ii-restorations-in-primary-molars-a-preliminary-study
#3
Eliyahu Tal, Ari Kupietzky, Anna B Fuks, Nili Tickotsky, Moti Moskovitz
OBJECTIVES: The present preliminary study evaluated the clinical and radiographic performances of heat-cured high viscosity glass ionomer (HCHVGI) in class II restorations of primary molars. STUDY DESIGN: A retrospective study on a cohort of patients who had dental caries restored at a private practice was conducted. Restorations were evaluated radiographically and photographically by two separate examiners. RESULTS: Ninety-three Class II restorations in 44 patients (average age: 108 months ± 25...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650731/combination-treatments-with-luteolin-and-fisetin-enhance-anti-inflammatory-effects-in-high-glucose-treated-thp-1-cells-through-histone-acetyltransferase-histone-deacetylase-regulation
#4
Arang Kim, Jung-Mi Yun
Hyperglycemia leads to diabetes and its diabetic complications. In this study, we investigated the synergistic effects of luteolin and fisetin on proinflammatory cytokine secretion and its underlying epigenetic regulation in human monocytes exposed to hyperglycemic (HG) concentrations. Human monocytic cells (THP-1) were cultured under controlled (14.5 mM mannitol), normoglycemic (5.5 mM glucose), or HG (20 mM glucose) conditions in the absence or presence of the two phytochemicals for 48 h. Whereas HG conditions significantly induced histone acetylation, nuclear factor-kappa B (NF-κB) activation, interleukin 6, and tumor necrosis factor-α release from THP-1 cells; combination treatments with the two phytochemicals (500 nM fisetin, and l μM and 500 nM luteolin) suppressed NF-κB activity and inflammatory cytokine release...
June 26, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28650727/models-for-nearly-every-occasion-part-iv-two-box-decreasing-emission-models
#5
Gary H Ganser, Paul Hewett
New two box "well-mixed room" decreasing emission (DE) models are introduced for scenarios that involve local controls, such as some form of local exhaust or local exhaust with filtered return. In addition, these models allow for the recirculation of a filtered (or cleaned) portion of the general room ventilation. For each control device scenario, a steady state and transient near and far field model is presented. The transient equations predict the concentration at time t after the application of the substance...
June 26, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28650714/models-for-nearly-every-occasion-part-iii-one-box-decreasing-emission-models
#6
Paul Hewett, Gary H Ganser
New one box "well-mixed room" decreasing emission (DE) models are introduced that allow for local exhaust or local exhaust with filtered return, as well the recirculation of a filtered (or cleaned) portion of the general room ventilation. For each control device scenario, a steady state and transient model is presented. The transient equations predict the concentration at any time t after the application of a known mass of a volatile substance to a surface, and can be used to predict the task exposure profile, the average task exposure, as well as peak and short-term exposures...
June 26, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28650479/aml1-eto-requires-enhanced-c-d-box-snorna-rnp-formation-to-induce-self-renewal-and-leukaemia
#7
Fengbiao Zhou, Yi Liu, Christian Rohde, Cornelius Pauli, Dennis Gerloff, Marcel Köhn, Danny Misiak, Nicole Bäumer, Chunhong Cui, Stefanie Göllner, Thomas Oellerich, Hubert Serve, Maria-Paz Garcia-Cuellar, Robert Slany, Jaroslaw P Maciejewski, Bartlomiej Przychodzen, Barbara Seliger, Hans-Ulrich Klein, Christoph Bartenhagen, Wolfgang E Berdel, Martin Dugas, Makoto Mark Taketo, Daneyal Farouq, Schraga Schwartz, Aviv Regev, Josée Hébert, Guy Sauvageau, Caroline Pabst, Stefan Hüttelmaier, Carsten Müller-Tidow
Leukaemogenesis requires enhanced self-renewal, which is induced by oncogenes. The underlying molecular mechanisms remain incompletely understood. Here, we identified C/D box snoRNAs and rRNA 2'-O-methylation as critical determinants of leukaemic stem cell activity. Leukaemogenesis by AML1-ETO required expression of the groucho-related amino-terminal enhancer of split (AES). AES functioned by inducing snoRNA/RNP formation via interaction with the RNA helicase DDX21. Similarly, global loss of C/D box snoRNAs with concomitant loss of rRNA 2'-O-methylation resulted in decreased leukaemia self-renewal potential...
June 26, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28650433/the-evening-complex-coordinates-environmental-and-endogenous-signals-in-arabidopsis
#8
Daphne Ezer, Jae-Hoon Jung, Hui Lan, Surojit Biswas, Laura Gregoire, Mathew S Box, Varodom Charoensawan, Sandra Cortijo, Xuelei Lai, Dorothee Stöckle, Chloe Zubieta, Katja E Jaeger, Philip A Wigge
Plants maximize their fitness by adjusting their growth and development in response to signals such as light and temperature. The circadian clock provides a mechanism for plants to anticipate events such as sunrise and adjust their transcriptional programmes. However, the underlying mechanisms by which plants coordinate environmental signals with endogenous pathways are not fully understood. Using RNA-sequencing and chromatin immunoprecipitation sequencing experiments, we show that the evening complex (EC) of the circadian clock plays a major role in directly coordinating the expression of hundreds of key regulators of photosynthesis, the circadian clock, phytohormone signalling, growth and response to the environment...
June 26, 2017: Nature Plants
https://www.readbyqxmd.com/read/28650145/the-dead-box-protein-cyt-19-uses-arginine-residues-in-its-c-tail-to-tether-rna-substrates
#9
Veronica F Busa, Maxwell J Rector, Rick Russell
DEAD-box proteins are nonprocessive RNA helicases that play diverse roles in cellular processes. The Neurospora crassa DEAD-box protein CYT-19 promotes mitochondrial group I intron splicing and functions as a general RNA chaperone. CYT-19 includes a disordered, arginine-rich 'C-tail' that binds RNA, positioning the helicase core to capture and unwind nearby RNA helices. Here we probed the C-tail further by varying the number and positions of arginines within it. We found that removing sets of as few as four of the eleven arginines reduced RNA unwinding activity (kcat/KM) equivalently to removing the C-tail, suggesting that a minimum or 'threshold' number of arginines is required...
June 26, 2017: Biochemistry
https://www.readbyqxmd.com/read/28650001/brodalumab-the-first-anti-il-17-receptor-agent-for-psoriasis
#10
L Puig
Psoriasis is a chronic immune-mediated inflammatory skin disease in which the alteration of the interleukin-23 (IL-23)/IL-17 cytokine axis appears to be crucial from a pathogenetic perspective. This has been confirmed by the efficacy of monoclonal antibodies blocking IL-17A, such as secukinumab and ixekizumab. Brodalumab is a human anti-IL-17 receptor A (IL-17RA) monoclonal antibody that inhibits the biological activity of IL-17A, IL-17F and other IL-17 isoforms, and has been approved (210 mg s.c. at weeks 0, 1, 2 and every 2 weeks thereafter) for the treatment of psoriasis vulgaris, psoriatic arthritis, pustular psoriasis and psoriatic erythroderma in Japan (Lumicef)...
May 2017: Drugs of Today
https://www.readbyqxmd.com/read/28649699/a-wrky-transcription-factor-from-withania-somnifera-regulates-triterpenoid-withanolide-accumulation-and-biotic-stress-tolerance-through-modulation-of-phytosterol-and-defense-pathways
#11
Anup Kumar Singh, Sarma Rajeev Kumar, Varun Dwivedi, Avanish Rai, Shaifali Pal, Ajit K Shasany, Dinesh A Nagegowda
Withania somnifera produces pharmacologically important triterpenoid withanolides that are derived via phytosterol pathway; however, their biosynthesis and regulation remain to be elucidated. A jasmonate- and salicin-inducible WRKY transcription factor from W. somnifera (WsWRKY1) exhibiting correlation with withaferin A accumulation was functionally characterized employing virus-induced gene silencing and overexpression studies combined with transcript and metabolite analyses, and chromatin immunoprecipitation assay...
June 26, 2017: New Phytologist
https://www.readbyqxmd.com/read/28649578/anti-high-mobility-group-box-1-antibody-ameliorates-albuminuria-in-mrl-lpr-lupus-prone-mice
#12
Haruki Watanabe, Katsue S Watanabe, Keyue Liu, Sumie Hiramatsu, Sonia Zeggar, Eri Katsuyama, Noriko Tatebe, Akiya Akahoshi, Fumiaki Takenaka, Takahisa Hanada, Masaru Akehi, Takanori Sasaki, Ken-Ei Sada, Eiji Matsuura, Masahiro Nishibori, Jun Wada
We evaluated the efficacy of a neutralizing anti-high mobility group box 1 (HMGB1) monoclonal antibody in MRL/lpr lupus-prone mice. The anti-HMGB1 monoclonal antibody (5 mg/kg weight) or class-matched control immunoglobulin G2a (IgG2a) was administered intravenously twice a week for 4-15 weeks. Urine albumin was monitored, and histological evaluation of the kidneys was conducted at 16 weeks. Lymphadenopathies were evaluated by 1-(2'-deoxy-2'-[(18)F]fluoro-β-D-arabinofuranosyl)cytosine ([(18)F]FAC) positron emission tomography/computed tomography (PET/CT) at 12 weeks...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28649418/facilitating-access-to-health-research-through-a-participatory-research-register-a-feasibility-study-in-outpatient-clinics
#13
Verity A Leach, John D McGeagh, Ruta Margelyte, Niamh M Redmond, Axel Walther, Sabi Redwood, Richard M Martin, Jenny L Donovan
BACKGROUND: A research register (Reach West) has been established to facilitate recruitment of people and patients to health-related research. We conducted a prospective feasibility study to investigate the practicality of recruiting through outpatient clinics. METHODS: Patients over 18 years of age attending dental, eye or oncology outpatient clinics in an acute hospital in the West of England were provided with the opportunity to participate in Reach West. In Phase I, recruitment packs were handed to clinic attendees who could place completed consent forms in secure drop-box or return them later on-line or by post...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28649112/exploding-the-black-box-personal-computing-the-notebook-battery-crisis-and-postindustrial-systems-thinking
#14
Matthew N Eisler
Historians of science and technology have generally ignored the role of power sources in the development of consumer electronics. In this they have followed the predilections of historical actors. Research, development, and manufacturing of batteries has historically occurred at a social and intellectual distance from the research, development, and manufacturing of the devices they power. Nevertheless, power source technoscience should properly be understood as an allied yet estranged field of electronics. The separation between the fields has had important consequences for the design and manufacturing of mobile consumer electronics...
2017: Technology and Culture
https://www.readbyqxmd.com/read/28649088/targeting-aggf1-angiogenic-factor-with-g-patch-and-fha-domains-1-for-blocking-neointimal-formation-after-vascular-injury
#15
Yufeng Yao, Zhenkun Hu, Jian Ye, Changqing Hu, Qixue Song, Xingwen Da, Yubin Yu, Hui Li, Chengqi Xu, Qiuyun Chen, Qing Kenneth Wang
BACKGROUND: Despite recent improvements in angioplasty and placement of drug-eluting stents in treatment of atherosclerosis, restenosis and in-stent thrombosis impede treatment efficacy and cause numerous deaths. Research efforts are needed to identify new molecular targets for blocking restenosis. We aim to establish angiogenic factor AGGF1 (angiogenic factor with G patch and FHA domains 1) as a novel target for blocking neointimal formation and restenosis after vascular injury. METHODS AND RESULTS: AGGF1 shows strong expression in carotid arteries; however, its expression is markedly decreased in arteries after vascular injury...
June 25, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28649074/neurochemical-and-behavioral-effects-of-green-tea-camellia-sinensis-as-observed-in-animals-exposed-to-restraint-stress
#16
Huma Ikram, Beenish Mirza, Darakhshan Jabeen Haleem
Clinical studies on psychiatric patients suggest that life events stress precipitates depression. The possible involvement of 5-Hydroxy tryptamine (5-HT; Serotonin) in depression and other behavioral deficits is also suggested by clinical studies. As a natural stimulant, green tea (Camellia Sinensis) diminishes stress, worry and anxiety, allowing the brain to focus and concentrate better. Previously we have reported that beneficial effects of green tea might be associated with altered levels of 5-HT, which in turn may help in coping with stress...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28649000/suppression-of-the-mads-box-gene-slmbp8-accelerates-fruit-ripening-of-tomato-solanum-lycopersicum
#17
Wencheng Yin, Zongli Hu, Baolu Cui, Xuhu Guo, Jingtao Hu, Zhiguo Zhu, Guoping Chen
MADS-box genes encode important transcription factors that are involved in many biological processes of plants, including fruit ripening. In our research, a MADS-box gene, SlMBP8, was identified, and its tissue-specific expression profiles were analysed. SlMBP8 was highly expressed in fruits of the B+4 stage, in senescent leaves and in sepals. To further characterize its function, an RNA interference (RNAi) expression vector of SlMBP8 was constructed and transferred into tomato. In the transgenic plants, the ripening of fruits was shortened by 2-4 days compared to that of wild type...
June 15, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28648849/cellular-dead-box-rna-helicase-18-ddx18-promotes-the-prrsv-replication-via-interaction-with-virus-nsp2-and-nsp10
#18
Huan Jin, Lei Zhou, Xinna Ge, Han Zhang, Ruimin Zhang, Cong Wang, Li Wang, Zhibang Zhang, Hanchun Yang, Xin Guo
Porcine reproductive and respiratory syndrome virus (PRRSV) is an aetiological agent that can lead to reproductive failure and respiratory diseases of pigs. The replication and pathogenesis of PRRSV, although poorly understood, has been associated with the host factors. DDX18 is a member of DEAD-box RNA helicases (DDXs) family which were proved to participate in viral replication. Previously, we found the DDX18 interacts with both nsp2 and nsp10 of PRRSV by Co-Immunoprecipitation (Co-IP). In the present study, we demonstrated the interactions of DDX18 with nsp2 and nsp10, and located DDX18's binding regions as the N-terminus of nsp2 and both the N-terminus and C-terminus of nsp10...
June 22, 2017: Virus Research
https://www.readbyqxmd.com/read/28648822/novel-predators-reshape-holozoan-phylogeny-and-reveal-the-presence-of-a-two-component-signaling-system-in-the-ancestor-of-animals
#19
Elisabeth Hehenberger, Denis V Tikhonenkov, Martin Kolisko, Javier Del Campo, Anton S Esaulov, Alexander P Mylnikov, Patrick J Keeling
Our understanding of the origin of animals has been transformed by characterizing their most closely related, unicellular sisters: the choanoflagellates, filastereans, and ichthyosporeans. Together with animals, these lineages make up the Holozoa [1, 2]. Many traits previously considered "animal specific" were subsequently found in other holozoans [3, 4], showing that they evolved before animals, although exactly when is currently uncertain because several key relationships remain unresolved [2, 5]. Here we report the morphology and transcriptome sequencing from three novel unicellular holozoans: Pigoraptor vietnamica and Pigoraptor chileana, which are related to filastereans, and Syssomonas multiformis, which forms a new lineage with Corallochytrium in phylogenomic analyses...
June 15, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28648144/repression-of-the-f-box-protein-skp2-is-essential-for-actin-damage-induced-tetraploid-g1-arrest
#20
Yongsam Jo, Deug Y Shin
We previously reported that p53 plays as a key regulator in tetraploid G1 checkpoint, which is activated by actin damage-induced cytokinesis blockade and then prevents uncoupled DNA replication and nuclear division without cytokinesis. In this study, we investigated a role of Skp2, which targets CDK2 inhibitor p27/Kip1, in actin damage-induced tetraploid G1 arrest. Expression of Skp2 was decreased, but p27/Kip1 was increased after actin damage-induced cytokinesis blockade. The roles of Skp2 repression in tetraploid G1 arrest was investigated by analyzing the effects of ectopic expression of Skp2...
June 26, 2017: BMB Reports
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