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https://www.readbyqxmd.com/read/28540421/yeast-env9-encodes-a-conserved-lipid-droplet-ld-short-chain-dehydrogenase-involved-in-ld-morphology
#1
Ikha M Siddiqah, Surya P Manandhar, Stephanie M Cocca, Teli Hsueh, Vanessa Cervantes, Editte Gharakhanian
Lipid droplets (LDs) have emerged as dynamic and interactive organelles with important roles in lipid metabolism and membrane biogenesis. Here, we report that Saccharomyces cerevisiae Env9 is a novel conserved oxidoreductase involved in LD morphology. Microscopic and biochemical studies confirm localization of tagged Env9 to LDs and implicate its C-terminal hydrophobic domain (aa241-265) in its membrane association and stability. Confocal studies reveal a role for Env9 in LD morphology. Env9 positively affects both formation of large LDs upon overexpression and LD proliferation under poor carbon source...
May 24, 2017: Current Genetics
https://www.readbyqxmd.com/read/28539143/incidence-of-g-induced-loss-of-consciousness-and-almost-loss-of-consciousness-in-the-royal-air-force
#2
Ellen Slungaard, Judith McLeod, Nicholas D C Green, Amit Kiran, Di J Newham, Stephen D R Harridge
INTRODUCTION: Exposure to sustained +Gz acceleration with inadequate G protection can result in G-induced loss of consciousness (G-LOC) or almost loss of consciousness (A-LOC). The UK Royal Air Force (RAF) last conducted a survey of G-LOC within their military aircrew in 2005 with interventions subsequently introduced. The aim of this study was to repeat the 2005 survey in order to evaluate the impact of those interventions. METHODS: An anonymous questionnaire requesting details of G-LOC and A-LOC events was mailed to all RAF pilots (N = 1878) and weapons systems operators (WSOs) (N = 473), irrespective of aircraft currently flown...
June 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28535857/functional-characterization-of-the-collagen-binding-protein-dip2093-and-its-influence-on-host-pathogen-interaction-and-arthritogenic-potential-of-corynebacterium-diphtheriae
#3
Renata Stavracakis Peixoto, Camila Azevedo Antunes, Liliane Simpson Lourêdo, Vanilda Gonçalves Viana, Cintia Silva Dos Santos, Jemima Fuentes Ribeiro da Silva, Raphael Hirata, Elena Hacker, Ana Luíza Mattos-Guaraldi, Andreas Burkovski
Corynebacterium diphtheriae is typically recognized as the a etiological agent of diphtheria, a toxaemic infection of the respiratory tract; however, both non-toxigenic and toxigenic strains are increasingly isolated from cases of invasive infections. The molecular mechanisms responsible for bacterial colonization and dissemination to host tissues remain only partially understood. In this report, we investigated the role of DIP2093, described as a putative adhesin of the serine-aspartate repeat (Sdr) protein family in host-pathogen interactions of C...
May 23, 2017: Microbiology
https://www.readbyqxmd.com/read/28532050/full-in-vitro-analyses-of-new-generation-bulk-fill-dental-composites-cured-by-halogen-light
#4
Tuçe Hazal Tekin, Aysel Kantürk Figen, Pınar Yılmaz Atalı, Bilge Coşkuner Filiz, Mehmet Burçin Pişkin
The objective of this study was to investigate the full in-vitro analyses of new-generation bulk-fill dental composites cured by halogen light (HLG). Two types' four composites were studied: Surefill SDR (SDR) and Xtra Base (XB) as bulk-fill flowable materials; QuixFill (QF) and XtraFill (XF) as packable bulk-fill materials. Samples were prepared for each analysis and test by applying the same procedure, but with different diameters and thicknesses appropriate to the analysis and test requirements. Thermal properties were determined by thermogravimetric analysis (TG/DTG) and differential scanning calorimetry (DSC) analysis; the Vickers microhardness (VHN) was measured after 1, 7, 15 and 30days of storage in water...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28524243/bulk-filled-posterior-resin-restorations-based-on-stress-decreasing-resin-technology-a-randomized-controlled-6-year-evaluation
#5
Jan W V van Dijken, Ulla Pallesen
This randomized study evaluated a flowable resin composite bulk-fill technique in posterior restorations and compared it intraindividually with a conventional 2-mm resin composite layering technique over a 6-yr follow-up period. Thirty-eight pairs of Class II restorations and 15 pairs of Class I restorations were placed in 38 adults. In all cavities a single-step self-etch adhesive (Xeno V) was applied. In the first cavity of each pair, the flowable resin composite (SDR) was placed, in bulk increments of up to 4 mm...
May 19, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28491039/daily-moderate-exercise-is-beneficial-and-social-stress-is-detrimental-to-disease-pathology-in-murine-lupus-nephritis
#6
Saba I Aqel, Jeffrey M Hampton, Michael Bruss, Kendra T Jones, Giancarlo R Valiente, Lai-Chu Wu, Matthew C Young, William L Willis, Stacy Ardoin, Sudha Agarwal, Brad Bolon, Nicole Powell, John Sheridan, Naomi Schlesinger, Wael N Jarjour, Nicholas A Young
Daily moderate exercise (DME) and stress management are underemphasized in the care of patients with lupus nephritis (LN) due to a poor comprehensive understanding of their potential roles in controlling the inflammatory response. To investigate these effects on murine LN, disease progression was monitored with either DME or social disruption stress (SDR) induction in NZM2410/J mice, which spontaneously develop severe, early-onset LN. SDR of previously established social hierarchies was performed daily for 6 days and DME consisted of treadmill walking (8...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28490305/long-term-risk-of-severe-retinopathy-in-childhood-onset-type-1-diabetes-a-data-linkage-study
#7
Mary White, Matthew A Sabin, Costan G Magnussen, Michele A O'Connell, Peter G Colman, Fergus Cameron
OBJECTIVES: To determine the relationship between glycaemic control trajectory and the long term risk of severe complications in people with type 1 diabetes mellitus, as well as the effects of paediatric and adult HbA1c levels. DESIGN, SETTING, PARTICIPANTS: Data linkage study of data for adults with childhood-onset type 1 diabetes (diagnosed during 1975-2010) who had transitioned from paediatric diabetes care at the Royal Children's Hospital (Melbourne) to adult diabetes care at the Royal Melbourne Hospital during 1992-2013...
May 15, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28467259/in-vitro-evaluation-of-marginal-adaptation-of-direct-class-ii-composite-restorations-made-of-different-low-shrinkage-systems
#8
C Shahidi, I Krejci, D Dietschi
The present study evaluated the influence of various low-shrinkage restorative systems in class II direct composite restorations following simulated occlusal loading. Forty MOD class II cavities were prepared on freshly extracted human lower third molars with proximal margins located mesially 1.0 mm coronal to and distally 1 mm apical to the cementoenamel junction. The samples were randomly distributed into five experimental groups corresponding to the following restorative systems: a conventional resin composite (Tetric) as active control group, a low-shrinkage composite (Extra Low Shrinkage [ELS]) alone or combined with its corresponding flowable version (ELSflow) used as a 1- to 1...
May 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28465832/randomized-crossover-study-showing-nurse-led-same-day-review-replacing-next-day-review-in-uneventful-phacoemulsification-to-be-safe-and-efficacious
#9
Jennifer W H Shum, Janice J C Cheung, Monica M N Lee, Oscar G W Wong, Kenneth K W Li
Purpose. To study whether nurse led same-day review (SDR) after uneventful phacoemulsification can replace next-day review (NDR) in terms of safety and efficacy. Setting. Patients are recruited from an ophthalmology outpatient clinic in Hong Kong. Design. A prospective, randomized crossover study conducted from November 2012 to 2014. Methods. Inclusion criteria include cataract surgery naïve patients undergoing phacoemulsification under local anaesthesia. All patients were seen by our ophthalmic nurse 2 hours after surgery...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28457810/chronic-stress-suppresses-anti-tumor-tcd8-responses-and-tumor-regression-following-cancer-immunotherapy-in-a-mouse-model-of-melanoma
#10
Annette Sommershof, Lisa Scheuermann, Julia Koerner, Marcus Groettrup
Animal tumor models and human cancer studies have provided convergent evidence that chronic psychological stress plays a decisive role in modulating anti-tumor T cell immunity. However, whether chronic stress also affects anti-cancer vaccine strategies that rely on the induction of functional tumor-specific TCD8+ cells has not been investigated yet. In this study we provide direct evidence that chronic stress suppresses the therapeutic efficacy of a biodegradable poly(d,l-lactide-co-glycolide) microsphere (PLGA-MS) based cancer vaccine in a murine melanoma model...
April 27, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28450226/human-carbonyl-reductase-1-participating-in-intestinal-first-pass-drug-metabolism-is-inhibited-by-fatty-acids-and-acyl-coas
#11
Akira Hara, Satoshi Endo, Toshiyuki Matsunaga, Ossama El-Kabbani, Takeshi Miura, Toru Nishinaka, Tomoyuki Terada
Human carbonyl reductase 1 (CBR1), a member of the short-chain dehydrogenase/reductase (SDR) superfamily, reduces a variety of carbonyl compounds including endogenous isatin, prostaglandin E2 and 4-oxo-2-nonenal. It is also a major non-cytochrome P450 enzyme in the phase I metabolism of carbonyl-containing drugs, and is highly expressed in the intestine. In this study, we found that long-chain fatty acids and their CoA ester derivatives inhibit CBR1. Among saturated fatty acids, myristic, palmitic and stearic acids were inhibitory, and stearic acid was the most potent (IC50 9µM)...
April 24, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28402737/comparison-of-polymerization-shrinkage-physical-properties-and-marginal-adaptation-of-flowable-and-restorative-bulk-fill-resin-based-composites
#12
J H Jung, S H Park
PURPOSE: The purpose of this study was to compare the marginal adaptation of two flowable bulk fill resin-based composites (FB-RBCs), two restorative bulk fill resin-based composites (RB-RBCs), and one regular incremental-fill RBC in MOD cavities in vitro. Additionally, the influence of linear polymerization shrinkage, shrinkage force, flexural modulus, and bottom/top surface hardness ratio on the marginal adaptation was evaluated. METHODS: A Class II MOD cavity was prepared in 40 extracted sound lower molars...
April 12, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28402731/characterization-of-inorganic-filler-content-mechanical-properties-and-light-transmission-of-bulk-fill-resin-composites
#13
B M Fronza, Apa Ayres, R R Pacheco, F A Rueggeberg, Cts Dias, M Giannini
OBJECTIVES: The aims of this study were to characterize inorganic content (IC), light transmission (LT), biaxial flexural strength (BFS), and flexural modulus (FM) of one conventional (layered) and four bulk-fill composites at different depths. METHODS: Bulk-fill composites tested were Surefil SDR flow (SDR), Filtek Bulk Fill (FBF), Tetric EvoCeram Bulk Fill (TEC), and EverX Posterior (EXP). Herculite Classic (HER) was used as a control. Energy dispersive x-ray analysis and scanning electron microscopy were used to characterize filler particle composition and morphology...
April 12, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28401027/beneficial-effects-of-childhood-selective-dorsal-rhizotomy-in-adulthood
#14
T S Park, Caleb Edwards, Jenny L Liu, Deanna M Walter, Matthew B Dobbs
 Selective dorsal rhizotomy (SDR) has been used to treat children with spastic cerebral palsy (CP) for over three decades. However, little is known about the outcomes of childhood SDR in adults.  Objectives: 1) To study the effects of childhood SDR on the quality of life and ambulatory function in adult life. 2) To determine late side effects of SDR in adults.   Methods: Adults (> 17.9 years) who underwent SDR in childhood (2 - 17.9 years) between 1987 and 2013 were surveyed in 2015. Patients completed a survey, including questions on demographic information, quality of life, health, surgical outcomes, motor function, manual ability, pain, braces/orthotics, post-SDR treatment, living situation, education level, work status, and side effects of SDR...
March 5, 2017: Curēus
https://www.readbyqxmd.com/read/28399833/a-comparison-of-dalys-for-periodontal-disease-in-china-between-1990-and-2013-insights-from-the-2013-global-burden-of-disease-study
#15
Qi Zhang, Zhixin Li, Chunxiao Wang, Yunning Liu, Yang Yang, Scottie Bussell, Maigeng Zhou, Linhong Wang
BACKGROUND: China has undergone a rapid demographic and epidemiological transition with fast ecomonic development since the 1980s. Oral health is becoming a major public health problem as the prevalence of non-communicable diseases has greatly increased. Periodontal disease (PD) and caries are among the most prevalent oral diseases. PD accounts for the majority of tooth loss and increases with age. China's third national epidemiological investigation on oral diseases (2005) revealed that periodontitis affected >50% of the adult population...
April 11, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28394293/implementation-of-a-cross-layer-sensing-medium-access-control-scheme
#16
Yishan Su, Xiaomei Fu, Guangyao Han, Naishen Xu, Zhigang Jin
In this paper, compressed sensing (CS) theory is utilized in a medium-access control (MAC) scheme for wireless sensor networks (WSNs). We propose a new, cross-layer compressed sensing medium-access control (CL CS-MAC) scheme, combining the physical layer and data link layer, where the wireless transmission in physical layer is considered as a compress process of requested packets in a data link layer according to compressed sensing (CS) theory. We first introduced using compressive complex requests to identify the exact active sensor nodes, which makes the scheme more efficient...
April 10, 2017: Sensors
https://www.readbyqxmd.com/read/28383612/european-cardiovascular-mortality-over-the-last-three-decades-evaluation-of-time-trends-forecasts-for-2016
#17
M Gaeta, F Campanella, L Gentile, G M Schifino, L Capasso, F Bandera, G Banfi, M Arpesella, C Ricci
BACKGROUND: The circulatory diseases, in particular ischemic heart diseases and stroke, represent the main causes of death worldwide both in high income and in middle and low income countries. Our aim is to provide a comprehensive report to depict the circulatory disease mortality in Europe over the last 30 years and to address the sources of heterogeneity among different countries. METHODS: Our study was performed using the WHO statistical information system - mortality database - and was restricted to the 28 countries belonging to the European Union (EU-28)...
May 2017: Annali di Igiene: Medicina Preventiva e di Comunità
https://www.readbyqxmd.com/read/28381493/recreational-concentrations-of-alcohol-enhance-synaptic-inhibition-of-cerebellar-unipolar-brush-cells-via-pre-and-postsynaptic-mechanisms
#18
Ben David Richardson, David James Rossi
Variation in cerebellar sensitivity to alcohol/ethanol (EtOH) is a heritable trait associated with alcohol use disorder (AUD) in humans and high EtOH consumption in rodents, but the underlying mechanisms are poorly understood. A recently identified cellular substrate of cerebellar sensitivity to EtOH: the GABAergic system of cerebellar granule cells (GCs), shows divergent responses to EtOH paralleling EtOH consumption and motor impairment phenotype. Although GCs are the dominant afferent integrator in the cerebellum, such integration is shared by unipolar brush cells (UBCs) in vestibulocerebellar lobes...
April 5, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28358678/low-dimensional-representation-of-fisher-vectors-for-microscopy-image-classification
#19
Yang Song, Qing Li, Heng Huang, Dagan Feng, Mei Chen, Weidong Cai
Microscopy image classification is important in various biomedical applications, such as cancer subtype identification and protein localization for high content screening. To achieve automated and effective microscopy image classification, the representative and discriminative capability of image feature descriptors is essential. To this end, in this study we propose a new feature representation algorithm to facilitate automated microscopy image classification. In particular, we incorporate Fisher vector (FV) encoding with multiple types of local features that are handcrafted or learned, and we design a separationguided dimension reduction (SDR) method to reduce the descriptor dimension while increasing its discriminative capability...
March 24, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28345647/sexual-epigenetics-gender-specific-methylation-of-a-gene-in-the-sex-determining-region-of-populus-balsamifera
#20
Katharina Bräutigam, Raju Soolanayakanahally, Marc Champigny, Shawn Mansfield, Carl Douglas, Malcolm M Campbell, Quentin Cronk
Methylation has frequently been implicated in gender determination in plants. The recent discovery of the sex determining region (SDR) of balsam poplar, Populus balsamifera, pinpointed 13 genes with differentiated X and Y copies. We tested these genes for differential methylation using whole methylome sequencing of xylem tissue of multiple individuals grown under field conditions in two common gardens. The only SDR gene to show a marked pattern of gender-specific methylation is PbRR9, a member of the two component response regulator (type-A) gene family, involved in cytokinin signalling...
March 27, 2017: Scientific Reports
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