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https://www.readbyqxmd.com/read/28319463/solid-cancer-incidence-among-the-life-span-study-of-atomic-bomb-survivors-1958-2009
#1
Eric J Grant, Alina Brenner, Hiromi Sugiyama, Ritsu Sakata, Atsuko Sadakane, Mai Utada, Elizabeth K Cahoon, Caitlin M Milder, Midori Soda, Harry M Cullings, Dale L Preston, Kiyohiko Mabuchi, Kotaro Ozasa
This is the third analysis of solid cancer incidence among the Life Span Study (LSS) cohort of atomic bomb survivors in Hiroshima and Nagasaki, adding eleven years of follow-up data since the previously reported analysis. For this analysis, several changes and improvements were implemented, including updated dose estimates (DS02R1) and adjustment for smoking. Here, we focus on all solid cancers in aggregate. The eligible cohort included 105,444 subjects who were alive and had no known history of cancer at the start of follow-up...
March 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28263416/the-effect-of-reward-expectation-on-the-time-course-of-perceptual-decisions
#2
Annalisa Tosoni, Giorgia Committeri, Cinzia Calluso, Gaspare Galati
Perceptual discriminations can be strongly biased by the expected reward for a correct decision but the neural mechanisms underlying this influence are still partially unclear. Using functional magnetic resonance imaging (fMRI) during a task requiring to arbitrarily associate a visual stimulus with a specific action, we have recently shown that perceptual decisions are encoded within the same sensorimotor regions responsible for planning and executing specific motor actions. Here we examined whether these regions additionally encode the amount of expected reward for a perceptual decision...
March 6, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28261564/legionella-pneumophila-strain-130b-evades-macrophage-cell-death-independent-of-the-effector-sidf-in-the-absence-of-flagellin
#3
Mary Speir, Adam Vogrin, Azadeh Seidi, Gilu Abraham, Stéphane Hunot, Qingqing Han, Gerald W Dorn, Seth L Masters, Richard A Flavell, James E Vince, Thomas Naderer
The human pathogen Legionella pneumophila must evade host cell death signaling to enable replication in lung macrophages and to cause disease. After bacterial growth, however, L. pneumophila is thought to induce apoptosis during egress from macrophages. The bacterial effector protein, SidF, has been shown to control host cell survival and death by inhibiting pro-apoptotic BNIP3 and BCL-RAMBO signaling. Using live-cell imaging to follow the L. pneumophila-macrophage interaction, we now demonstrate that L. pneumophila evades host cell apoptosis independent of SidF...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28242789/tm6sf2-rs58542926-variant-affects-postprandial-lipoprotein-metabolism-and-glucose-homeostasis-in-nafld-a-clue-to-the-opposite-impact-of-tm6sf2-variant-on-liver-and-cardio-metabolic-disease
#4
Giovanni Musso, Ugo Cipolla, Maurizio Cassader, Silvia Pinach, Francesca Saba, Franco De Michieli, Elena Paschetta, Daria Bongiovanni, Luciana Framarin, Nicola Leone, Mara Berrutti, Floriano Rosina, Stefania Corvisieri, Federica Molinaro, Antonio Sircana, Roberto Gambino
Mechanisms underlying the opposite effects of TM6SF2 rs58542926 C>T polymorphism on liver injury and cardio-metabolic risk in NAFLD are unclear. We assessed the impact of this polymorphism on postprandial lipoprotein metabolism, glucose homeostasis, and nutrient oxidation in NAFLD. Sixty nonobese, nondiabetic, normolipidemic biopsy-proven NAFLD patients and 60 matched controls genotyped for TM6SF2 C>T polymorphism underwent: indirect calorimetry, an oral fat tolerance test with measurement of plasma lipoprotein subfractions, adipokines, incretin GIP, and an OGTT with Minimal Model analysis of glucose homeostasis...
February 27, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28241570/thickness-independent-dynamics-in-cholesteric-liquid-crystals
#5
Yo Inoue, Mayo Hattori, Hiroshi Moritake
We report fast electro-optic response independent of cell thickness in cholesteric liquid crystals (ChLCs). Usually, an electric field normal to the helix axis of ChLCs induces two fast and one slow response components: helical elongation (slow one), helical deformation (fast one), and flexoelectric effect (fast one). In this study, we found that a planarly aligned ChLC applied with an in-plane electric field exhibited only fast response components because the glass substrates suppressed the motion of the helical elongation...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28221370/blunted-ventral-striatal-responses-to-anticipated-rewards-foreshadow-problematic-drug-use-in-novelty-seeking-adolescents
#6
Christian Büchel, Jan Peters, Tobias Banaschewski, Arun L W Bokde, Uli Bromberg, Patricia J Conrod, Herta Flor, Dimitri Papadopoulos, Hugh Garavan, Penny Gowland, Andreas Heinz, Henrik Walter, Bernd Ittermann, Karl Mann, Jean-Luc Martinot, Marie-Laure Paillère-Martinot, Frauke Nees, Tomas Paus, Zdenka Pausova, Luise Poustka, Marcella Rietschel, Trevor W Robbins, Michael N Smolka, Juergen Gallinat, Gunter Schumann, Brian Knutson
Novelty-seeking tendencies in adolescents may promote innovation as well as problematic impulsive behaviour, including drug abuse. Previous research has not clarified whether neural hyper- or hypo-responsiveness to anticipated rewards promotes vulnerability in these individuals. Here we use a longitudinal design to track 144 novelty-seeking adolescents at age 14 and 16 to determine whether neural activity in response to anticipated rewards predicts problematic drug use. We find that diminished BOLD activity in mesolimbic (ventral striatal and midbrain) and prefrontal cortical (dorsolateral prefrontal cortex) regions during reward anticipation at age 14 predicts problematic drug use at age 16...
February 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28210781/adolescent-cocaine-exposure-enhances-goal-tracking-behavior-and-impairs-hippocampal-cell-genesis-selectively-in-adult-bred-low-responder-rats
#7
M Julia García-Fuster, Aram Parsegian, Stanley J Watson, Huda Akil, Shelly B Flagel
RATIONALE: Environmental challenges during adolescence, such as drug exposure, can cause enduring behavioral and molecular changes that contribute to life-long maladaptive behaviors, including addiction. Selectively bred high-responder (bHR) and low-responder (bLR) rats represent a unique model for assessing the long-term impact of adolescent environmental manipulations, as they inherently differ on a number of addiction-related traits. bHR rats are considered "addiction-prone," whereas bLR rats are "addiction-resilient," at least under baseline conditions...
February 16, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28195391/rig-i-is-a-key-antiviral-interferon-stimulated-gene-against-hepatitis-e-virus-dispensable-of-interferon-production
#8
Lei Xu, Wenshi Wang, Yunlong Li, Xinying Zhou, Yuebang Yin, Yijin Wang, Robert A de Man, Luc J W van der Laan, Fen Huang, Nassim Kamar, Maikel P Peppelenbosch, Qiuwei Pan
Interferons (IFNs) are broad antiviral cytokines that exert their function by inducing the transcription of hundreds of interferon-stimulated genes (ISGs). However, little is known about the antiviral potential of these cellular effectors on hepatitis E virus (HEV) infection, the leading cause of acute hepatitis globally. In this study, we profiled the antiviral potential of a panel of important human ISGs on HEV replication in cell culture models by overexpression of individual ISG. The mechanism-of-action of the key anti-HEV ISG was further studied...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28193847/dna-damage-response-independent-role-for-mdc1-in-maintaining-genomic-stability
#9
Zhiguo Li, Chen Shao, Yifan Kong, Colin Carlock, Nihal Ahmad, Xiaoqi Liu
MDC1 is a central player in checkpoint activation and subsequent DNA repair following DNA damage. Although MDC1 has been extensively studied, much of its known functions to date pertains to the DNA damage response (DDR) pathway. Herein, we report a novel function of phosphorylated MDC1, independent of ATM and DNA damage, which is required for proper mitotic progression and maintenance of genomic stability. We demonstrate that MDC1 is an in vivo target of Plk1 and that the phosphorylated MDC1 is dynamically localized to nuclear envelopes, centrosomes, kinetochores and the midbodies...
February 13, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28193764/shoot-removal-induces-chloroplast-development-in-roots-via-cytokinin-signaling
#10
Koichi Kobayashi, Ai Ohnishi, Daichi Sasaki, Sho Fujii, Akira Iwase, Keiko Sugimoto, Tatsuru Masuda, Hajime Wada
Development of plant chloroplasts is regulated by various developmental, environmental, and hormonal cues. In Arabidopsis thaliana, chloroplast development is repressed in roots via auxin signaling. However, roots develop chloroplasts when they are detached from the shoot. In contrast to auxin, cytokinin positively affects chloroplast development in roots, but the role and signaling pathway of cytokinin in the root greening response remain unclear. To understand the regulatory pathways of chloroplast development in the plant stress response, we examined the mechanisms underlying the conditional greening of detached roots...
February 13, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28177480/circulating-tumour-cells-and-pathological-complete-response-independent-prognostic-factors-in-inflammatory-breast-cancer-in-a-pooled-analysis-of-two-multicentre-phase-ii-trials-beverly-1-and-2-of-neoadjuvant-chemotherapy-combined-with-bevacizumab
#11
J-Y Pierga, F-C Bidard, A Autret, T Petit, F Andre, F Dalenc, C Levy, J-M Ferrero, G Romieu, J Bonneterre, F Lerebours, T Bachelot, P Kerbrat, M Campone, J-C Eymard, M-A Mouret-Reynier, J Gligorov, A-C Hardy-Bessard, A Lortholary, P Soulie, J-M Boher, C Proudhon, E Charafe-Jaufret, J Lemonnier, F Bertucci, P Viens
No abstract text is available yet for this article.
January 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28122715/primary-cilia-regulate-the-osmotic-stress-response-of-renal-epithelial-cells-through-trpm3
#12
Brian J Siroky, Nancy K Kleene, Steven J Kleene, Charles D Varnell, Raven G Comer, Jialiu Liu, Lu Lu, Nolan W Pachciarz, John J Bissler, Bradley P Dixon
Primary cilia sense environmental conditions including osmolality, but whether cilia participate in osmotic response in renal epithelial cells is not known. Transient receptor potential (TRP) channels TRPV4 and TRPM3 are osmoresponsive. TRPV4 localizes to cilia in certain cell types, while renal subcellular localization of TRPM3 is not known. We hypothesized that primary cilia are required for maximal activation of the osmotic response of renal epithelial cells, and that ciliary TRPM3 and TRPV4 mediate that response...
January 25, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28117243/patient-perceptions-of-integrated-care-and-their-relationship-to-utilization-of-emergency-inpatient-and-outpatient-services
#13
Ashley-Kay Fryer, Mark W Friedberg, Ryan W Thompson, Sara J Singer
BACKGROUND: Patients with multiple chronic conditions have garnered particular attention from policymakers and health service researchers because these patients utilize more services and contribute disproportionally to rising health care expenses. The growing prevalence of patients with multiple chronic conditions has increased the importance of achieving better health care integration for this patient population. Patients may be well positioned to assess integration of their care, but the relationship between patients' perceptions of care integration and use of health services has not been studied...
January 21, 2017: Healthcare
https://www.readbyqxmd.com/read/28094276/b7-h3-participates-in-the-development-of-asthma-by-augmentation-of-the-inflammatory-response-independent-of-tlr2-pathway
#14
Wenjing Gu, Xinxing Zhang, Yongdong Yan, Yuqing Wang, Li Huang, Meijuan Wang, Xuejun Shao, Zhengrong Chen, Wei Ji
B7-H3, a new member of the B7 superfamily, acts as both a T cell costimulator and coinhibitor. Recent studies identified B7-H3 plays a critical role in the development of asthma. But the definitive mechanism is not clear. In this study, we further report that B7-H3 participates in the development of OVA-induced asthma in a murine model. And study its mechanism through the vitro and vivo experiment. Exogenous administration of B7-H3 strongly amplified the inflammatory response and augmented proinflammatory cytokines in vitro and vivo...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28081195/assessment-of-volumetric-versus-manual-measurement-in-disseminated-testicular-cancer-no-difference-in-assessment-between-non-radiologists-and-genitourinary-radiologist
#15
Çiğdem Öztürk, Ton Velleman, Alphons H H Bongaerts, L M Bergman, Robert J van Ginkel, Jourik A Gietema, Harald J Hoekstra
BACKGROUND: The aim of this study was to assess the feasibility and reproducibility of semi-automatic volumetric measurement of retroperitoneal lymph node metastases in testicular cancer (TC) patients treated with chemotherapy versus the standardized manual measurements based on RECIST criteria. METHODS: 21 TC patients with retroperitoneal lymph node metastases of testicular cancer were studied with a CT scan of chest and abdomen before and after cisplatin based chemotherapy...
2017: PloS One
https://www.readbyqxmd.com/read/28061843/sun-protection-to-improve-vaccine-effectiveness-in-children-in-a-high-ambient-ultraviolet-radiation-and-rural-environment-an-intervention-study
#16
Caradee Y Wright, Patricia N Albers, Angela Mathee, Zamantimande Kunene, Catherine D'Este, Ashwin Swaminathan, Robyn M Lucas
BACKGROUND: Vaccination is a mainstay of preventive healthcare, reducing the incidence of serious childhood infections. Ecological studies have demonstrated an inverse association between markers of high ambient ultraviolet (UV) radiation exposure (e.g., sunny season, low latitude of residence) and reduction in the vaccination-associated immune response. Higher sun exposure on the day prior to and spanning the day of vaccination has been associated with a reduced antigen-specific immune response independent of skin pigmentation...
January 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28018863/immunization-with-the-mipa-skp-or-etec_2479-antigens-confers-protection-against-enterotoxigenic-e-coli-strains-expressing-different-colonization-factors-in-a-mouse-pulmonary-challenge-model
#17
Michael P Hays, Amit Kumar, Francisco J Martinez-Becerra, Philip R Hardwidge
Achieving cross-protective efficacy against multiple bacterial strains or serotypes is an important goal of vaccine design. Enterotoxigenic Escherichia coli (ETEC) is an important cause of diarrheal disease in underdeveloped nations. We have been interested in identifying and characterizing ETEC antigens that generate protective immune responses independent of ETEC colonization factor (CF) expression. Our previous studies used proteomics to identify the ETEC MipA, Skp, and ETEC_2479 proteins as effective in protecting mice from homologous challenge with ETEC H10407 using a pulmonary inoculation model...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28013188/a-capture-method-based-on-the-vc1-domain-reveals-new-binding-properties-of-the-human-receptor-for-advanced-glycation-end-products-rage
#18
Genny Degani, Alessandra A Altomare, Mara Colzani, Caterina Martino, Angelica Mazzolari, Guenter Fritz, Giulio Vistoli, Laura Popolo, Giancarlo Aldini
The Advanced Glycation and Lipoxidation End products (AGEs and ALEs) are a heterogeneous class of compounds derived from the non-enzymatic glycation or protein adduction by lipoxidation break-down products. The receptor for AGEs (RAGE) is involved in the progression of chronic diseases based on persistent inflammatory state and oxidative stress. RAGE is a pattern recognition receptor (PRR) and the inhibition of the interaction with its ligands or of the ligand accumulation have a potential therapeutic effect...
April 2017: Redox Biology
https://www.readbyqxmd.com/read/27966553/microbiota-metabolite-short-chain-fatty-acid-acetate-promotes-intestinal-iga-response-to-microbiota-which-is-mediated-by-gpr43
#19
W Wu, M Sun, F Chen, A T Cao, H Liu, Y Zhao, X Huang, Y Xiao, S Yao, Q Zhao, Z Liu, Y Cong
Intestinal IgA, which is regulated by gut microbiota, has a crucial role in maintenance of intestinal homeostasis and in protecting the intestines from inflammation. However, the means by which microbiota promotes intestinal IgA responses remain unclear. Emerging evidence suggests that the host can sense gut bacterial metabolites in addition to pathogen-associated molecular patterns and that recognition of these small molecules influences host immune response in the intestines and beyond. We reported here that microbiota metabolite short-chain fatty acid acetate promoted intestinal IgA responses, which was mediated by "metabolite-sensing" GPR43...
December 14, 2016: Mucosal Immunology
https://www.readbyqxmd.com/read/27956580/visual-discomfort-from-flash-afterimages-of-riloid-patterns
#20
Louise O'Hare
Op-art-based stimuli have been shown to be uncomfortable, possibly due to a combination of fixational eye movements (microsaccades) and excessive cortical responses. Efforts have been made to measure illusory phenomena arising from these stimuli in the absence of microsaccades, but there has been no attempt thus far to decouple the effects of the cortical response from the effect of fixational eye movements. This study uses flash afterimages to stabilise the image on the retina and thus reduce the systematic effect of eye movements, in order to investigate the role of the brain in discomfort from op-art-based stimuli...
December 11, 2016: Perception
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