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https://www.readbyqxmd.com/read/28817109/dysfunctional-natural-killer-cells-in-the-aftermath-of-cancer-surgery
#1
REVIEW
Leonard Angka, Sarwat T Khan, Marisa K Kilgour, Rebecca Xu, Michael A Kennedy, Rebecca C Auer
The physiological changes that occur immediately following cancer surgeries initiate a chain of events that ultimately result in a short pro-, followed by a prolonged anti-, inflammatory period. Natural Killer (NK) cells are severely affected during this period in the recovering cancer patient. NK cells play a crucial role in anti-tumour immunity because of their innate ability to differentiate between malignant versus normal cells. Therefore, an opportunity arises in the aftermath of cancer surgery for residual cancer cells, including distant metastases, to gain a foothold in the absence of NK cell surveillance...
August 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28816644/cyp2b6-haplotype-predicts-efavirenz-plasma-concentration-in-black-south-african-hiv-1-infected-children-a-longitudinal-pediatric-pharmacogenomic-study
#2
Riaan Reay, Collet Dandara, Michelle Viljoen, Malie Rheeders
South Africa has the highest burden of the human immunodeficiency virus (HIV) infection globally. Efavirenz (EFV), a frequently used drug against HIV infection, displays a relationship between drug concentration and pharmacodynamics effects clinically. However, haplotype-based genetic variation in drug metabolism in a pediatric sample has been little considered in a longitudinal long-term context. CYP2B6 plays a key role in variation of EFV plasma concentration through altered drug metabolism. We report here on a prospective clinical pharmacogenomics/pharmacokinetic study of Bantu-speaking children, importantly, over a period of 24 months post-initiation of EFV-based treatment in South Africa...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28815122/incorporating-data-citation-in-a-biomedical-repository-an-implementation-use-case
#3
Snehil Gupta, Connie Zabarovskaya, Brian Romine, Daniel A Vianello, Cynthia Hudson Vitale, Leslie D McIntosh
Research data is a dynamic and evolving entity and the ability to cite such data depends on recreating the same datasets utilized in the original research. Despite the availability of several existing technologies, most data repositories lack the necessary setup to recreate a point-in-time snapshot of data, let alone long-term sustainability of dynamic data without restoring an entire database. Through this project, we adopted a subset of the Research Data Alliance data citation working group recommendations to establish a robust informatics system supporting dynamic data and its use for reproducible research within our evolving clinical data repository...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814515/fdg-uptake-in-lymphoid-tissue-serves-as-a-predictor-of-disease-outcome-in-the-nonhuman-primate-model-of-monkeypox-infection
#4
Julie Dyall, Reed F Johnson, Svetlana Chefer, Christopher Leyson, David Thomasson, Jurgen Seidel, Dan R Ragland, Russell Byrum, Catherine Jett, Jennifer A Cann, Marisa St Claire, Elaine Jagoda, Richard C Reba, Dima Hammoud, Joseph E Blaney, Peter B Jahrling
Real-time bioimaging of infectious disease processes may aid countermeasure development and lead to an improved understanding of pathogenesis. However, few studies have identified biomarkers for monitoring infections using in vivo imaging. Previously, we demonstrated that positron emission tomography/computed tomography (PET/CT) imaging with [(18)F]-fluorodeoxyglucose (FDG) can monitor monkeypox disease progression in vivo in nonhuman primates (NHPs). In this study, we investigated [(18)F]-FDG-PET/CT imaging of immune processes in lymphoid tissues to identify patterns of inflammation in the monkepox NHP model and to determine the value of [(18)F]-FDG-PET/CT as a biomarker for disease and treatment outcomes...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28814448/carcinogen-susceptibility-is-regulated-by-genome-architecture-and-predicts-cancer-mutagenesis
#5
Pablo E García-Nieto, Erin K Schwartz, Devin A King, Jonas Paulsen, Philippe Collas, Rafael E Herrera, Ashby J Morrison
The development of many sporadic cancers is directly initiated by carcinogen exposure. Carcinogens induce malignancies by creating DNA lesions (i.e., adducts) that can result in mutations if left unrepaired. Despite this knowledge, there has been remarkably little investigation into the regulation of susceptibility to acquire DNA lesions. In this study, we present the first quantitative human genome-wide map of DNA lesions induced by ultraviolet (UV) radiation, the ubiquitous carcinogen in sunlight that causes skin cancer...
August 16, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28814270/transcriptional-analysis-of-abdominal-fat-in-chickens-divergently-selected-on-bodyweight-at-two-ages-reveals-novel-mechanisms-controlling-adiposity-validating-visceral-adipose-tissue-as-a-dynamic-endocrine-and-metabolic-organ
#6
C W Resnyk, W Carré, X Wang, T E Porter, J Simon, E Le Bihan-Duval, M J Duclos, S E Aggrey, L A Cogburn
BACKGROUND: Decades of intensive genetic selection in the domestic chicken (Gallus gallus domesticus) have enabled the remarkable rapid growth of today's broiler (meat-type) chickens. However, this enhanced growth rate was accompanied by several unfavorable traits (i.e., increased visceral fatness, leg weakness, and disorders of metabolism and reproduction). The present descriptive analysis of the abdominal fat transcriptome aimed to identify functional genes and biological pathways that likely contribute to an extreme difference in visceral fatness of divergently selected broiler chickens...
August 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28813480/paleogenetic-study-on-the-17th-century-korean-mummy-with-atherosclerotic-cardiovascular-disease
#7
Dong Hoon Shin, Chang Seok Oh, Jong Ha Hong, Yusu Kim, Soong Deok Lee, Eunju Lee
While atherosclerotic cardiovascular disease (ASCVD) is known to be common among modern people exposed to various risk factors, recent paleopathological studies have shown that it affected ancient populations much more frequently than expected. In 2010, we investigated a 17th century Korean female mummy with presumptive ASCVD signs. Although the resulting report was a rare and invaluable conjecture on the disease status of an ancient East Asian population, the diagnosis had been based only on anatomical and radiological techniques, and so could not confirm the existence of ASCVD in the mummy...
2017: PloS One
https://www.readbyqxmd.com/read/28813143/effect-of-structure-and-disorder-on-the-charge-transport-in-defined-self-assembled-monolayers-of-organic-semiconductors
#8
Thomas Schmaltz, Bastian Gothe, Andreas Krause, Susanne Leitherer, Hans-Georg Steinrück, Michael Thoss, Timothy Clark, Marcus Halik
Self-assembled monolayer field-effect transistors (SAMFETs) are not only a promising new type of organic electronic device but also allow uniquely detailed analyses of structure-property correlations. The influence of the morphology on the charge transport is particularly pronounced, due to the confined monolayer of 2D-π-stacked organic semiconductor molecules. The morphology, in turn, is governed by relatively weak van-der-Waals interactions and is thus prone to dynamic structural fluctuations. Accordingly, combining electronic and physical characterization and time-averaged X-ray analyses with the dynamic information available at atomic resolution from simulations, allows us to characterize self-assembled monolayer (SAM-) based devices in unprecedented detail...
August 16, 2017: ACS Nano
https://www.readbyqxmd.com/read/28812966/a-snapshot-of-intellectual-disabilities-in-lao-pdr-challenges-for-the-development-of-services
#9
Stian H Thoresen, Angela Fielding, Sue Gillieatt, Barbara Blundell, Liem Nguyen
Lao People's Democratic Republic (PDR) has experienced significant economic growth in the last two decades. While access to education, health, and employment for people with disabilities has also improved markedly, people with intellectual disabilities are still among the most vulnerable in society. This article presents findings from a screening survey of 2469 participants, a focus group discussion with key stakeholders in intellectual disabilities, and a case study of the Association for Autism. The screening survey suggests 1...
September 2017: Journal of Intellectual Disabilities: JOID
https://www.readbyqxmd.com/read/28811466/time-lapse-crystallography-snapshots-of-a-double-strand-break-repair-polymerase-in-action
#10
Joonas A Jamsen, William A Beard, Lars C Pedersen, David D Shock, Andrea F Moon, Juno M Krahn, Katarzyna Bebenek, Thomas A Kunkel, Samuel H Wilson
DNA polymerase (pol) μ is a DNA-dependent polymerase that incorporates nucleotides during gap-filling synthesis in the non-homologous end-joining pathway of double-strand break repair. Here we report time-lapse X-ray crystallography snapshots of catalytic events during gap-filling DNA synthesis by pol μ. Unique catalytic intermediates and active site conformational changes that underlie catalysis are uncovered, and a transient third (product) metal ion is observed in the product state. The product manganese coordinates phosphate oxygens of the inserted nucleotide and PPi...
August 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28810937/tweets-gangs-and-guns-a-snapshot-of-gang-communications-in-detroit
#11
Desmond Patton, Sadiq Patel, Jun Sung Hong, Megan Ranney, Marie Crandall, Lyle Dungy
The aim of this study is to determine the frequency of violent and criminal Twitter communications among gang-affiliated individuals in Detroit, Michigan. We analyzed 8.5 million Detroit gang members' tweets from January 2013 to March 2014 to assess whether they contained Internet banging-related keywords. We found that 4.7% of gangaffiliated user tweets consisted of terms related to violence and crime. Violence and crime-related communications fell into 4 main categories: (a) beefing (267,221 tweets), (b) grief (79,971 tweets), (c) guns (3,551 tweets), and (d) substance use and distribution (47,638 tweets)...
August 15, 2017: Violence and Victims
https://www.readbyqxmd.com/read/28809086/who-where-what-and-where-to-now-a-snapshot-of-publishing-patterns-in-australian-orthopaedic-surgery
#12
Nicholas Croker, Abhirup Lobo, Anne Croker, Zsolt J Balogh, David Dewar
BACKGROUND: Development of core research competency is a principle of orthopaedic surgical training in Australia. This paper aims to provide an objective snapshot of publications by Australian orthopaedic trainees and surgeons, to contribute to the discussion on how to identify and build on research capability in the Australian Orthopaedic Association (AOA). METHODS: By analysing journals with a journal impact factor >1 from 2009 to 2015, data were gathered to explore scientific journal publications by Australian orthopaedic surgeons and trainees in relation to who are the authors, what they are reporting and where they are publishing...
August 15, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28808433/felix-an-algorithm-for-indexing-multiple-crystallites-in-x-ray-free-electron-laser-snapshot-diffraction-images
#13
Kenneth R Beyerlein, Thomas A White, Oleksandr Yefanov, Cornelius Gati, Ivan G Kazantsev, Nicolai Fog-Gade Nielsen, Peter M Larsen, Henry N Chapman, Søren Schmidt
A novel algorithm for indexing multiple crystals in snapshot X-ray diffraction images, especially suited for serial crystallography data, is presented. The algorithm, FELIX, utilizes a generalized parametrization of the Rodrigues-Frank space, in which all crystal systems can be represented without singularities. The new algorithm is shown to be capable of indexing more than ten crystals per image in simulations of cubic, tetragonal and monoclinic crystal diffraction patterns. It is also used to index an experimental serial crystallography dataset from lysozyme microcrystals...
August 1, 2017: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/28808005/conformational-dynamics-of-1-deoxy-d-xylulose-5-phosphate-synthase-on-ligand-binding-revealed-by-h-d-exchange-ms
#14
Jieyu Zhou, Luying Yang, Alicia DeColli, Caren Freel Meyers, Natalia S Nemeria, Frank Jordan
The enzyme 1-deoxy-d-xylulose 5-phosphate synthase (DXPS) is a key enzyme in the methylerythritol 4-phosphate pathway and is a target for the development of antibiotics, herbicides, and antimalarial drugs. DXPS catalyzes the formation of 1-deoxy-d-xylulose 5-phosphate (DXP), a branch point metabolite in isoprenoid biosynthesis, and is also used in the biosynthesis of thiamin (vitamin B1) and pyridoxal (vitamin B6). Previously, we found that DXPS is unique among the superfamily of thiamin diphosphate (ThDP)-dependent enzymes in stabilizing the predecarboxylation intermediate, C2-alpha-lactyl-thiamin diphosphate (LThDP), which has subsequent decarboxylation that is triggered by d-glyceraldehyde 3-phosphate (GAP)...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28806692/microplastic-pollution-identified-in-deep-sea-water-and-ingested-by-benthic-invertebrates-in-the-rockall-trough-north-atlantic-ocean
#15
Winnie Courtene-Jones, Brian Quinn, Stefan F Gary, Andrew O M Mogg, Bhavani E Narayanaswamy
Microplastics are widespread in the natural environment and present numerous ecological threats. While the ultimate fate of marine microplastics are not well known, it is hypothesized that the deep sea is the final sink for this anthropogenic contaminant. This study provides a quantification and characterisation of microplastic pollution ingested by benthic macroinvertebrates with different feeding modes (Ophiomusium lymani, Hymenaster pellucidus and Colus jeffreysianus) and in adjacent deep water > 2200 m, in the Rockall Trough, Northeast Atlantic Ocean...
August 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28805793/conformational-landscape-of-a-virus-by-single-particle-x-ray-scattering
#16
Ahmad Hosseinizadeh, Ghoncheh Mashayekhi, Jeremy Copperman, Peter Schwander, Ali Dashti, Reyhaneh Sepehr, Russell Fung, Marius Schmidt, Chun Hong Yoon, Brenda G Hogue, Garth J Williams, Andrew Aquila, Abbas Ourmazd
Using a manifold-based analysis of experimental diffraction snapshots from an X-ray free electron laser, we determine the three-dimensional structure and conformational landscape of the PR772 virus to a detector-limited resolution of 9 nm. Our results indicate that a single conformational coordinate controls reorganization of the genome, growth of a tubular structure from a portal vertex and release of the genome. These results demonstrate that single-particle X-ray scattering has the potential to shed light on key biological processes...
August 14, 2017: Nature Methods
https://www.readbyqxmd.com/read/28805543/exploring-the-relationship-of-phase-and-peak-frequency-eeg-alpha-band-and-beta-band-activity-to-temporal-judgments-of-stimulus-duration
#17
Alex Milton, Christopher Pleydell-Pearce
Pre-stimulus phase has been shown to influence temporal judgments concerning order, causality and simultaneity. One hypothesis is that phase cycles frame discrete perceptual snapshots over time. Yet, existing studies have explored the effect of pre-stimulus phase on fine-grained temporal judgments whereas no study has shown whether pre-stimulus phase influences sub-second temporal judgments lasting several phase cycles. If effects of phase on fine-grained temporal judgments reflect perceptual framing, then the perception of longer intervals might show some dependency on the frequency of phase cycles...
August 14, 2017: Cognitive Neuroscience
https://www.readbyqxmd.com/read/28805350/predicting-student-success-in-nurse-practitioner-programs
#18
Angela Richard-Eaglin
BACKGROUND AND PURPOSE: Criteria for admission to nurse practitioner (NP) and other professional programs provide a snapshot of students' potential for success in those programs. Critical examination of admission criteria is a vital component of ensuring timely matriculation and completion of NP programs. The purpose of the current study was to examine the relationship between admission criteria and student progression and completion of NP programs. METHODS: A retrospective review of 150 randomly selected student records from a total of 232 available records was conducted...
August 14, 2017: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/28803259/opportunities-and-challenges-in-the-immunological-therapy-of-pediatric-malignancy-a-concise-snapshot
#19
REVIEW
Francesco Ceppi, Maja Beck-Popovic, Jean-Pierre Bourquin, Raffaele Renella
Over the last 50 years, collaborative clinical trials have reduced the number of children dying from pediatric cancer significantly. Unfortunately, certain tumor types have remained resistant to conventional surgical, radiotherapy and chemotherapy combinations, and relapsing and/or refractory disease remains associated with dismal outcomes. Recently, renewed attention has been given to the role for immunotherapies in pediatric oncology. In fact, these combine several attractive features, including (but possibly not limited to) the specificity for cancer cells, potentially in vivo persistence and longevity, and potency against refractory disease...
August 12, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28802936/nonmotor-symptoms-in-experimental-models-of-parkinson-s-disease
#20
Nataliya Titova, Anthony H V Schapira, K Ray Chaudhuri, Mubasher A Qamar, Elena Katunina, Peter Jenner
Nonmotor symptoms of Parkinson's disease (PD) range from neuropsychiatric, cognitive to sleep and sensory disorders and can arise from the disease process as well as from drug treatment. The clinical heterogeneity of nonmotor symptoms of PD is underpinned by a wide range of neuropathological and molecular pathology, affecting almost the entire range of neurotransmitters present in brain and the periphery. Understanding the neurobiology and pathology of nonmotor symptoms is crucial to the effective treatment of PD and currently a key unmet need...
2017: International Review of Neurobiology
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