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https://www.readbyqxmd.com/read/28334850/aicardi-gouti%C3%A3-res-syndrome-protein-trex1-suppresses-l1-and-maintains-genome-integrity-through-exonuclease-independent-orf1p-depletion
#1
Peng Li, Juan Du, John L Goodier, Jingwei Hou, Jian Kang, Haig H Kazazian, Ke Zhao, Xiao-Fang Yu
Maintaining genome integrity is important for cells and damaged DNA triggers autoimmunity. Previous studies have reported that Three-prime repair exonuclease 1(TREX1), an endogenous DNA exonuclease, prevents immune activation by depleting damaged DNA, thus preventing the development of certain autoimmune diseases. Consistently, mutations in TREX1 are linked with autoimmune diseases such as systemic lupus erythematosus, Aicardi-Goutières syndrome (AGS) and familial chilblain lupus. However, TREX1 mutants competent for DNA exonuclease activity are also linked to AGS...
March 15, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334293/what-s-behind-a-sign-perceiving-an-arithmetic-operator-recruits-brain-circuits-for-spatial-orienting
#2
Romain Mathieu, Justine Epinat-Duclos, Monica Sigovan, Audrey Breton, Anne Cheylus, Michel Fayol, Catherine Thevenot, Jérôme Prado
Do mathematical symbols evoke spatial representations? Although behavioral studies have long demonstrated interactions between space and the processing of Arabic digits, how to interpret these results remains controversial. Here, we tested whether activity in regions supporting spatial processing contributes to the processing of symbols conveying fundamental arithmetic concepts-such as operation signs-even in the absence of associated digits. Using functional magnetic resonance imaging, we show that merely perceiving a "+" sign triggers activity in brain regions that support the orienting of spatial attention in adults...
March 14, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333609/fundamental-use-of-surgical-energy-fuse-an-essential-educational-program-for-operating-room-safety
#3
Stephanie B Jones, Malcolm G Munro, Liane S Feldman, Thomas N Robinson, L Michael Brunt, Steven D Schwaitzberg, Daniel B Jones, Pascal R Fuchshuber
Operating room (OR) safety has become a major concern in patient safety since the 1990s. Improvement of team communication and behavior is a popular target for safety programming at the institutional level. Despite these efforts, essential safety gaps remain in the OR and procedure rooms. A prime example is the use of energy-based devices in ORs and procedural areas. The lack of fundamental understanding of energy device function, design, and application contributes to avoidable injury and harm at a rate of approximately 1 to 2 per 1000 patients in the US...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28333307/formation-physiology-ecology-evolution-and-clinical-importance-of-bacterial-persisters
#4
Bram Van den Bergh, Maarten Fauvart, Jan Michiels
Persisters are transiently tolerant variants that allow populations to avoid eradication by antibiotic treatment. Their antibiotic tolerance is non-genetic, not inheritable and results from a phenotypic switch from the normal, sensitive cell type to the tolerant, persister state. Here we give a comprehensive overview on bacterial persistence. We first define persistence, summarize the various aspects of persister physiology and show their heterogeneous nature. We then focus on the role of key cellular processes and mechanisms controlling the formation of a subpopulation of tolerant cells...
February 15, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28333238/clustering-of-pcos-like-traits-in-naturally-hyperandrogenic-female-rhesus-monkeys
#5
D H Abbott, B H Rayome, D A Dumesic, K C Lewis, A K Edwards, K Wallen, M E Wilson, S E Appt, J E Levine
STUDY QUESTION: Do naturally occurring, hyperandrogenic (≥1 SD of population mean testosterone, T) female rhesus monkeys exhibit traits typical of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Hyperandrogenic female monkeys exhibited significantly increased serum levels of androstenedione (A4), 17-hydroxyprogesterone (17-OHP), estradiol (E2), LH, antimullerian hormone (AMH), cortisol, 11-deoxycortisol and corticosterone, as well as increased uterine endometrial thickness and evidence of reduced fertility, all traits associated with PCOS...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332938/semantic-transparency-affects-morphological-priming%C3%A2-%C3%A2-%C3%A2-eventually
#6
Vera Heyer, Dana Kornishova
Semantic transparency has been in the focus of psycholinguistic research for decades, with the controversy about the time-course of the application of morpho-semantic information during the processing of morphologically complex words not yet resolved. The present study reports two masked priming studies with English -ness and Russian -ost' nominalisations, investigating how semantic transparency modulates native speakers' morphological priming effects at short and long SOAs. In both languages, we found increased morphological priming for nominalisations at the transparent end of the scale (e...
March 23, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28332707/effects-of-relational-uncertainty-in-heightening-national-identification-and-reactive-approach-motivation-of-japanese
#7
Yuto Terashima, Jiro Takai
This study investigated whether relational uncertainty poses uncertainty threat, which causes compensatory behaviours among Japanese. We hypothesised that Japanese, as collectivists, would perceive relational uncertainty to pose uncertainty threat. In two experiments, we manipulated relational uncertainty, and confirmed that participants exhibited compensatory reactions to reduce aversive feelings due to it. In Study 1, we conducted direct comparison between relational uncertainty, independent self-uncertainty and control conditions...
March 23, 2017: International Journal of Psychology: Journal International de Psychologie
https://www.readbyqxmd.com/read/28332706/jasmonic-acid-dependent-regulation-of-seed-dormancy-following-maternal-herbivory-in-arabidopsis
#8
Prashant Singh, Anuja Dave, Fabian E Vaistij, Dawn Worrall, Geoff H Holroyd, Jonathan G Wells, Filip Kaminski, Ian A Graham, Michael R Roberts
Maternal experience of abiotic environmental factors such as temperature and light are well known to control seed dormancy in many plant species. Maternal biotic stress alters offspring defence phenotypes, but whether it also affects seed dormancy remains unexplored. We exposed Arabidopsis thaliana plants to herbivory and investigated plasticity in germination and defence phenotypes in their offspring, along with the roles of phytohormone signalling in regulating maternal effects. Maternal herbivory resulted in the accumulation of jasmonic acid-isoleucine and loss of dormancy in seeds of stressed plants...
March 23, 2017: New Phytologist
https://www.readbyqxmd.com/read/28332603/the-arabidopsis-mir396-mediates-pathogen-associated-molecular-pattern-triggered-immune-responses-against-fungal-pathogens
#9
Mauricio Soto-Suárez, Patricia Baldrich, Detlef Weigel, Ignacio Rubio-Somoza, Blanca San Segundo
MicroRNAs (miRNAs) play a pivotal role in regulating gene expression during plant development. Although a substantial fraction of plant miRNAs has proven responsive to pathogen infection, their role in disease resistance remains largely unknown, especially during fungal infections. In this study, we screened Arabidopsis thaliana lines in which miRNA activity has been reduced using artificial miRNA target mimics (MIM lines) for their response to fungal pathogens. Reduced activity of miR396 (MIM396 plants) was found to confer broad resistance to necrotrophic and hemibiotrophic fungal pathogens...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331616/ex-vivo-akt-inhibition-promotes-the-generation-of-potent-cd19car-t-cells-for-adoptive-immunotherapy
#10
Ryan Urak, Miriam Walter, Laura Lim, ChingLam W Wong, Lihua E Budde, Sandra Thomas, Stephen J Forman, Xiuli Wang
BACKGROUND: Insufficient persistence and effector function of chimeric antigen receptor (CAR)-redirected T cells have been challenging issues for adoptive T cell therapy. Generating potent CAR T cells is of increasing importance in the field. Studies have demonstrated the importance of the Akt pathway in the regulation of T cell differentiation and memory formation. We now investigate whether inhibition of Akt signaling during ex vivo expansion of CAR T cells can promote the generation of CAR T cells with enhanced antitumor activity following adoptive therapy in a murine leukemia xenograft model...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28331179/hyperosmolarity-impedes-the-cross-priming-competence-of-dendritic-cells-in-a-trif-dependent-manner
#11
Zoran V Popovic, Maria Embgenbroich, Federica Chessa, Viola Nordström, Mahnaz Bonrouhi, Thomas Hielscher, Norbert Gretz, Shijun Wang, Daniel Mathow, Thomas Quast, Jan-Gero Schloetel, Waldemar Kolanus, Sven Burgdorf, Hermann-Josef Gröne
Tissue osmolarity varies among different organs and can be considerably increased under pathologic conditions. Hyperosmolarity has been associated with altered stimulatory properties of immune cells, especially macrophages and dendritic cells. We have recently reported that dendritic cells upon exposure to hypertonic stimuli shift their profile towards a macrophage-M2-like phenotype, resulting in attenuated local alloreactivity during acute kidney graft rejection. Here, we examined how hyperosmotic microenvironment affects the cross-priming capacity of dendritic cells...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331154/-prime-meeting
#12
Tosiaki Miyati
No abstract text is available yet for this article.
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28331061/an-intracellular-matrix-metalloproteinase-2-isoform-induces-tubular-regulated-necrosis-implications-for-acute-kidney-injury
#13
Carla S Ceron, Celine Baligand, Sunil K Joshi, Shaynah Wanga, Patrick M Cowley, Joy P Walker, Sang Heon Song, Rajeev Mahimkar, Anthony J Baker, Robert L Raffai, Zhen J Wang, David H Lovett
Acute kidney injury (AKI) causes severe morbidity, mortality, and chronic kidney disease (CKD). Mortality is particularly marked in the elderly and with pre-existing CKD. Oxidative stress is a common theme in models of AKI induced by ischemia/reperfusion (I/R) injury. We recently characterized an intracellular isoform of matrix metalloproteinase-2 (MMP-2) induced by oxidative stress-mediated activation of an alternate promoter in the first intron of the MMP-2 gene. This generates an N-terminal truncated MMP-2 isoform (NTT-MMP-2) that is intracellular and associated with mitochondria...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28330878/linear-summation-of-repulsive-and-attractive-serial-dependencies-orientation-and-motion-dependencies-sum-in-motion-perception
#14
David Alais, Johahn Leung, Erik Van der Burg
Recent work from several groups has shown that perception of various visual attributes in human observers at a given moment is biased towards what was recently seen. This positive serial dependency is a kind of temporal averaging which exploits short-term correlations in visual scenes to reduce noise and stabilise perception. To date this stabilising 'continuity field' has been demonstrated on stable visual attributes such as orientation and face identity, yet it would be counterproductive to apply it to dynamic attributes where change sensitivity is needed...
March 22, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28330529/highlight-on-bottlenecks-in-food-allergen-analysis-detection-and-quantification-by-mass-spectrometry
#15
Mélanie Planque, Thierry Arnould, Patricia Renard, Philippe Delahaut, Marc Dieu, Nathlie Gillard
Food laboratories have developed methods for testing allergens in foods. The efficiency of qualitative and quantitativemethods is of prime importance in protecting allergic populations. Unfortunately, food laboratories encounter barriers to developing efficient methods. Bottlenecks include the lack of regulatory thresholds, delays in the emergence of reference materials and guidelines, and the need to detect processed allergens. In this study, ultra-HPLC coupled to tandem MS was used to illustrate difficulties encountered in determining method performances...
February 9, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28329691/myocardial-infarction-primes-autoreactive-t-cells-through-activation-of-dendritic-cells
#16
Katrien Van der Borght, Charlotte L Scott, Veronika Nindl, Ann Bouché, Liesbet Martens, Dorine Sichien, Justine Van Moorleghem, Manon Vanheerswynghels, Sofie De Prijck, Yvan Saeys, Burkhard Ludewig, Thierry Gillebert, Martin Guilliams, Peter Carmeliet, Bart N Lambrecht
Peripheral tolerance is crucial for avoiding activation of self-reactive T cells to tissue-restricted antigens. Sterile tissue injury can break peripheral tolerance, but it is unclear how autoreactive T cells get activated in response to self. An example of a sterile injury is myocardial infarction (MI). We hypothesized that tissue necrosis is an activator of dendritic cells (DCs), which control tolerance to self-antigens. DC subsets of a murine healthy heart consisted of IRF8-dependent conventional (c)DC1, IRF4-dependent cDC2, and monocyte-derived DCs...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329452/effect-of-prime-blood-storage-duration-on-clinical-outcome-after-pediatric-cardiac-surgery
#17
Arvind Kumar Bishnoi, Pankaj Garg, Kartik Patel, Parth Solanki, Jigar Surti, Atul Solanki, Komal Shah, Sanjay Patel
BACKGROUND: In this study, we tested the hypothesis that in pediatric patients undergoing cardiac surgery using cardiopulmonary bypass (CPB) with blood prime, the storage duration of the packed red blood cells (PRBCs) used in prime led to differences in postoperative complications and metabolic profiles of the patients. METHODS: For this prospective observational study we included 400 pediatric patients undergoing cardiac operations using CPB and requiring PRBCs prime...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329234/revaccination-of-guinea-pigs-with-the-live-attenuated-mycobacterium-tuberculosis-vaccine-mtbvac-improves-bcg-s-protection-against-tuberculosis
#18
Simon Clark, Faye Lanni, Dessislava Marinova, Emma Rayner, Carlos Martin, Ann Williams
Background.: The need for an effective vaccine against human tuberculosis has driven the development of different candidates and vaccination strategies. Novel live attenuated vaccines are being developed that promise greater safety and efficacy than BCG against tuberculosis. We combined BCG with the vaccine MTBVAC to evaluate whether the efficacy of either vaccine would be affected upon revaccination. Methods.: In a well-established guinea pig model of aerosol infection with Mycobacterium tuberculosis, BCG and MTBVAC delivered via various prime-boost combinations or alone were compared...
January 25, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28329174/ccr7-deficiency-modulates-t-cell-response-and-increases-susceptibility-to-yersinia-pseudotuberculosis-infection
#19
Joern Pezoldt, Fabio Pisano, Wiebke Heine, Maria Pasztoi, Maik Rosenheinrich, Aaron M Nuss, Marina C Pils, Immo Prinz, Reinhold Förster, Jochen Huehn, Petra Dersch
Background: To successfully limit pathogen dissemination an immunological link between the entry tissue of the pathogen and the underlying secondary lymphoid organs (SLO) needs to be established to prime adaptive immune responses. Here, the prerequisite of CCR7 to mount host immune responses within SLOs during gastrointestinal Yersinia pseudotuberculosis infection to limit pathogen spread was investigated. Methods: Survival, bacterial dissemination, intestinal and systemic pathology of wild type (WT) and CCR7-/- mice were assessed and correlated to the presence of immune cell subsets and cytokine responses throughout the course of infection...
January 27, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28327646/erratum-prime-factorization-using-quantum-annealing-and-computational-algebraic-geometry
#20
Raouf Dridi, Hedayat Alghassi
No abstract text is available yet for this article.
March 22, 2017: Scientific Reports
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