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James Griffith

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https://www.readbyqxmd.com/read/28379446/50-important-research-questions-in-microbial-ecology
#1
Rachael E Antwis, Sarah M Griffiths, Xavier A Harrison, Paz Aranega-Bou, Andres Arce, Aimee S Bettridge, Francesca L Brailsford, Alexandre de Menezes, Andrew Devaynes, Kristian M Forbes, Ellen L Fry, Ian Goodhead, Erin Haskell, Chloe Heys, Chloe James, Sarah R Johnston, Gillian R Lewis, Zenobia Lewis, Michael C Macey, Alan McCarthy, James E McDonald, Nasmille L Mejia-Florez, David O'Brien, Chloé Orland, Marco Pautasso, William D K Reid, Heather A Robinson, Kenneth Wilson, William J Sutherland
Microbial ecology provides insights into the ecological and evolutionary dynamics of microbial communities underpinning every ecosystem on Earth. Microbial communities can now be investigated in unprecedented detail, although there is still a wealth of open questions to be tackled. Here we identify 50 research questions of fundamental importance to the science or application of microbial ecology, with the intention of summarising the field and bringing focus to new research avenues. Questions are categorised into seven themes: Host-Microbiome Interactions; Health and Infectious Diseases; Human Health and Food Security; Microbial Ecology in a Changing World; Environmental Processes; Functional Diversity; and Evolutionary Processes...
April 3, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28379387/a-new-mhc-linked-susceptibility-locus-for-primary-sj%C3%A3-gren-s-syndrome-mica
#2
Raphael Carapito, Jacques-Eric Gottenberg, Irina Kotova, Meiggie Untrau, Sandra Michel, Lydie Naegely, Ismail Aouadi, Marius Kwemou, Nicodème Paul, Angélique Pichot, James Locke, Simon J Bowman, Bridget Griffiths, Kathy L Sivils, Jean Sibilia, Hidetoshi Inoko, Corinne Micelli-Richard, Gaétane Nocturne, Masao Ota, Wan-Fai Ng, Xavier Mariette, Seiamak Bahram
The association of primary Sjögren's syndrome (pSS) with Major Histocompatibility Complex (MHC) alleles is quintessential of MHC-disease associations. Indeed, although disease associations with classical HLA class I and II alleles/haplotypes are amply documented, further dissection is often prevented by the strong linkage disequilibrium across the entire MHC complex. Here we study the association of pSS, not with HLA genes, but with the non-conventional MHC encoded class I gene, MICA (MHC class I chain-related gene A)...
April 4, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28378091/how-misapplication-of-the-hydrologic-unit-framework-diminishes-the-meaning-of-watersheds
#3
James M Omernik, Glenn E Griffith, Robert M Hughes, James B Glover, Marc H Weber
Hydrologic units provide a convenient but problematic nationwide set of geographic polygons based on subjectively determined subdivisions of land surface areas at several hierarchical levels. The problem is that it is impossible to map watersheds, basins, or catchments of relatively equal size and cover the whole country. The hydrologic unit framework is in fact composed mostly of watersheds and pieces of watersheds. The pieces include units that drain to segments of streams, remnant areas, noncontributing areas, and coastal or frontal units that can include multiple watersheds draining to an ocean or large lake...
April 4, 2017: Environmental Management
https://www.readbyqxmd.com/read/28374282/a-randomised-crossover-study-to-compare-the-cross-sectional-and-longitudinal-approaches-to-ultrasound-guided-peripheral-venepuncture-in-a-model
#4
James Griffiths, Amadeus Carnegie, Richard Kendall, Rajeev Madan
BACKGROUND: Ultrasound-guided peripheral intravenous access may present an alternative to central or intraosseous access in patients with difficult peripheral veins. Using venepuncture of a phantom model as a proxy, we investigated whether novice ultrasound users should adopt a cross-sectional or longitudinal approach when learning to access peripheral veins under ultrasound guidance. This result would inform the development of a structured training method for this procedure. METHODS: We conducted a randomised controlled trial of 30 medical students...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28372855/neuromodulation-and-obstetric-anaesthesia
#5
EDITORIAL
James Griffiths, Peter Teddy
No abstract text is available yet for this article.
March 7, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28341891/homecoming-of-citizen-soldiers-postdeployment-problems-and-service-use-among-army-national-guard-soldiers
#6
James Griffith
The present study described the types and amount of problems and services sought among returned deployed Army National Guard soldiers (4568 soldiers in 50 units). The study responds to gaps in the research literature to better understand community intervention needs of reservists. About half (48%) of the soldiers reported one or two problems, mostly those of psychological well-being, such as feelings of anger and frustration, upsetting memories, and troubled sleep (34% of the study sample), followed by problems of social support (18%), alcohol use (17%), feelings of isolation including suicidal thoughts (13%), and financial difficulties (11%)...
March 24, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/28341348/the-impact-of-oral-polypodium-leucotomos-extract-on-ultraviolet-b-response-a-human-clinical-study
#7
Indermeet Kohli, Rubina Shafi, Prescilia Isedeh, James L Griffith, Mohammed S Al-Jamal, Narumol Silpa-Archa, Bradford Jackson, Mohammed Athar, Nikiforos Kollias, Craig A Elmets, Henry W Lim, Iltefat H Hamzavi
BACKGROUND: There is a rationale for adding systemic photoprotective agents to the current photoprotection regimen. OBJECTIVE: This study was designed to objectively evaluate the molecular and photobiologic effects of oral administration of Polypodium leucotomos extract (PLE). METHODS: In all, 22 subjects with Fitzpatrick skin phototype I to III were enrolled. On day 1, subjects were irradiated with visible light, ultraviolet (UV) A1, and UVB (using 308-nm excimer laser)...
March 21, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28320831/interference-of-the-t-cell-and-antigen-presenting-cell-costimulatory-pathway-using-ctla4-ig-abatacept-prevents-staphylococcal-enterotoxin-b-pathology
#8
Sarah J C Whitfield, Chris Taylor, Jane E Risdall, Gareth D Griffiths, James T A Jones, E Diane Williamson, Sjoerd Rijpkema, Luisa Saraiva, Sandrine Vessillier, A Christopher Green, Alun J Carter
Staphylococcal enterotoxin B (SEB) is a bacterial superantigen that binds the receptors in the APC/T cell synapse and causes increased proliferation of T cells and a cytokine storm syndrome in vivo. Exposure to the toxin can be lethal and cause significant pathology in humans. The lack of effective therapies for SEB exposure remains an area of concern, particularly in scenarios of acute mass casualties. We hypothesized that blockade of the T cell costimulatory signal by the CTLA4-Ig synthetic protein (abatacept) could prevent SEB-dependent pathology...
March 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28316756/photon-reabsorption-in-mixed-cspbcl3-cspbi3-perovskite-nanocrystal-films-for-light-emitting-diodes
#9
Nathaniel J L K Davis, Francisco J de la Peña, Maxim Tabachnyk, Johannes M Richter, Robin D Lamboll, Edward P Booker, Florencia Wisnivesky Rocca Rivarola, James T Griffiths, Caterina Ducati, S Matthew Menke, Felix Deschler, Neil C Greenham
Cesium lead halide nanocrystals, CsPbX3 (X = Cl, Br, I), exhibit photoluminescence quantum efficiencies approaching 100% without the core-shell structures usually used in conventional semiconductor nanocrystals. These high photoluminescence efficiencies make these crystals ideal candidates for light-emitting diodes (LEDs). However, because of the large surface area to volume ratio, halogen exchange between perovskite nanocrystals of different compositions occurs rapidly, which is one of the limiting factors for white-light applications requiring a mixture of different crystal compositions to achieve a broad emission spectrum...
February 23, 2017: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
https://www.readbyqxmd.com/read/28284142/reach-scale-variation-surface-water-quality-in-a-reticular-canal-system-in-the-lower-yangtze-river-delta-region-china
#10
James Andrew Griffiths, Faith Ka Shun Chan, Fangfang Zhu, Vickie Wang, David Laurence Higgitt
The aim of this research was to assess the spatial and temporal distribution of surface water pollution within a reticular canal system typical of those found in the lower Yangtze River Delta (YRD). For this purpose, surface water quality data was collected from a drainage canal that bisected the southeast district of Ningbo Municipality (Zhejiang) from 2013 to 2015. The sampling transect was designed to represent the change in land-use from the agriculture dominated rural hinterland, to the predominantly urban city-centre...
March 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28277982/mapping-differential-cellular-protein-response-of-mouse-alveolar-epithelial-cells-to-multi-walled-carbon-nanotubes-as-a-function-of-atomic-layer-deposition-coating
#11
Gina M Hilton, Alexia J Taylor, Salik Hussain, Erinn C Dandley, Emily H Griffith, Stavros Garantziotis, Gregory N Parsons, James C Bonner, Michael S Bereman
Carbon nanotubes (CNTs), a prototypical engineered nanomaterial, have been increasingly manufactured for a variety of novel applications over the past two decades. However, since CNTs possess fiber-like shape and cause pulmonary fibrosis in rodents, there is concern that mass production of CNTs will lead to occupational exposure and associated pulmonary diseases. The aim of this study was to use contemporary proteomics to investigate the mechanisms of cellular response in E10 mouse alveolar epithelial cells in vitro after exposure to multi-walled CNTs (MWCNTs) that were functionalized by atomic layer deposition (ALD)...
March 13, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28260023/silencing-bmi1-radiosensitizes-human-breast-cancer-cells-by-inducing-dna-damage-and-autophagy
#12
James Griffith, Daniel Andrade, Meghna Mehta, William Berry, Doris M Benbrook, Natarajan Aravindan, Terence S Herman, Rajagopal Ramesh, Anupama Munshi
Overexpression of BMI1 in human cancer cells, a member of the polycomb group of repressive complexes, correlates with advanced stage of disease, aggressive clinico-pathological behavior, poor prognosis, and resistance to radiation and chemotherapy. Studies have shown that experimental reduction of BMI1 protein level in tumor cells results in inhibition of cell proliferation, induction of apoptosis and/or senescence, and increased susceptibility to cytotoxic agents and radiation therapy. Although a role for BMI1 in cancer progression and its importance as a molecular target for cancer therapy has been established, information on the impact of silencing BMI1 in triple-negative breast cancer (TNBC) and its consequence on radiotherapy have not been well studied...
April 2017: Oncology Reports
https://www.readbyqxmd.com/read/28259484/prediction-of-complicated-disease-course-for-children-newly-diagnosed-with-crohn-s-disease-a-multicentre-inception-cohort-study
#13
Subra Kugathasan, Lee A Denson, Thomas D Walters, Mi-Ok Kim, Urko M Marigorta, Melanie Schirmer, Kajari Mondal, Chunyan Liu, Anne Griffiths, Joshua D Noe, Wallace V Crandall, Scott Snapper, Shervin Rabizadeh, Joel R Rosh, Jason M Shapiro, Stephen Guthery, David R Mack, Richard Kellermayer, Michael D Kappelman, Steven Steiner, Dedrick E Moulton, David Keljo, Stanley Cohen, Maria Oliva-Hemker, Melvin B Heyman, Anthony R Otley, Susan S Baker, Jonathan S Evans, Barbara S Kirschner, Ashish S Patel, David Ziring, Bruce C Trapnell, Francisco A Sylvester, Michael C Stephens, Robert N Baldassano, James F Markowitz, Judy Cho, Ramnik J Xavier, Curtis Huttenhower, Bruce J Aronow, Greg Gibson, Jeffrey S Hyams, Marla C Dubinsky
BACKGROUND: Stricturing and penetrating complications account for substantial morbidity and health-care costs in paediatric and adult onset Crohn's disease. Validated models to predict risk for complications are not available, and the effect of treatment on risk is unknown. METHODS: We did a prospective inception cohort study of paediatric patients with newly diagnosed Crohn's disease at 28 sites in the USA and Canada. Genotypes, antimicrobial serologies, ileal gene expression, and ileal, rectal, and faecal microbiota were assessed...
March 1, 2017: Lancet
https://www.readbyqxmd.com/read/28196607/development-of-a-model-web-based-system-to-support-a-statewide-quality-consortium-in-radiation-oncology
#14
Jean M Moran, Mary Feng, Lisa A Benedetti, Robin Marsh, Kent A Griffith, Martha M Matuszak, Michael Hess, Matthew McMullen, Jennifer H Fisher, Teamour Nurushev, Margaret Grubb, Stephen Gardner, Daniel Nielsen, Reshma Jagsi, James A Hayman, Lori J Pierce
PURPOSE: A database in which patient data are compiled allows analytic opportunities for continuous improvements in treatment quality and comparative effectiveness research. We describe the development of a novel, web-based system that supports the collection of complex radiation treatment planning information from centers that use diverse techniques, software, and hardware for radiation oncology care in a statewide quality collaborative, the Michigan Radiation Oncology Quality Consortium (MROQC)...
October 20, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28193515/infliximab-is-not-associated-with-increased-risk-of-malignancy-or-hemophagocytic-lymphohistiocytosis-in-pediatric-patients-with-inflammatory-bowel-disease
#15
Jeffrey S Hyams, Marla C Dubinsky, Robert N Baldassano, Richard B Colletti, Salvatore Cucchiara, Johanna Escher, William Faubion, John Fell, Benjamin D Gold, Anne Griffiths, Sibylle Koletzko, Subra Kugathasan, James Markowitz, Frank M Ruemmele, Gigi Veereman, Harland Winter, Nicholas Masel, Chu Ri Shin, Kezhen L Tang, Meena Thayu
BACKGROUND AND AIMS: Immunosuppressive therapy for inflammatory bowel disease (IBD) in pediatric patients is thought to increase the risk of malignancy and lymphoproliferative disorders, including hemophagocytic lymphohistiocytosis (HLH). We compared unadjusted incidence rates of malignancy and HLH in pediatric patients with IBD exposed to infliximab (IFX) with patients not exposed to biologics and calculated standardized incidence ratios (SIRs). METHODS: We collected and analyzed data from 5766 participants in a prospective study of long-term outcomes of pediatric patients with IBD (NCT00606346), from 2007 through 30 June 2016...
February 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28181830/effect-of-traction-on-wrist-joint-space-and-cartilage-visibility-with-and-without-mr-arthrography
#16
Ryan K L Lee, James F Griffith, W K Tang, Alex W H Ng, David K W Yeung
OBJECTIVE: To compare the effect of traction during non-arthrographic and arthrographic MR examination of the wrist with regard to joint space width, joint fluid dispersion and cartilage surface visibility. METHODS: Prospective 3-T MRI study of 100 wrists in 96 patients. The first 50 wrists underwent MR arthrography first without traction and then with traction. The following 50 wrists underwent standard MR first without traction and then with traction. On these examinations, two radiologists independently measured (i) joint space width, semi-quantitatively graded (ii) joint fluid dispersion between opposing cartilage surfaces and (iii) articular cartilage surface visibility...
April 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28174251/a-process-engineering-approach-to-increase-organoid-yield
#17
Natasha Arora, Jasmin Imran Alsous, Jacob W Guggenheim, Michael Mak, Jorge Munera, James M Wells, Roger D Kamm, H Harry Asada, Stanislav Y Shvartsman, Linda G Griffith
Temporal manipulation of the in vitro environment and growth factors can direct differentiation of human pluripotent stem cells into organoids - aggregates with multiple tissue-specific cell types and three-dimensional structure mimicking native organs. A mechanistic understanding of early organoid formation is essential for improving the robustness of these methods, which is necessary prior to use in drug development and regenerative medicine. We investigated intestinal organoid emergence, focusing on measurable parameters of hindgut spheroids, the intermediate step between definitive endoderm and mature organoids...
March 15, 2017: Development
https://www.readbyqxmd.com/read/28161533/prevalence-determinants-and-clinical-correlates-of-vitamin-d-deficiency-in-patients-with-chronic-obstructive-pulmonary-disease-in-london-uk
#18
David A Jolliffe, Wai Yee James, Richard L Hooper, Neil C Barnes, Claire L Greiller, Kamrul Islam, Angshu Bhowmik, Peter M Timms, Raj K Rajakulasingam, Aklak B Choudhury, David E Simcock, Elina Hyppönen, Robert T Walton, Christopher J Corrigan, Christopher J Griffiths, Adrian R Martineau
Vitamin D deficiency is common in patients with chronic obstructive pulmonary disease (COPD), yet a comprehensive analysis of environmental and genetic determinants of serum 25-hydroxyvitamin D (25[OH]D) concentration in patients with this condition is lacking. We conducted a multi-centre cross-sectional study in 278 COPD patients aged 41-92 years in London, UK. Details of potential environmental determinants of vitamin D status and COPD symptom control and severity were collected by questionnaire, and blood samples were taken for analysis of serum 25(OH)D concentration and DNA extraction...
February 1, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28160560/exosome-secretome-and-mediated-signaling-in-breast-cancer-patients-with-nontuberculous-mycobacterial-disease
#19
Julie V Philley, Anbarasu Kannan, David E Griffith, Megan S Devine, Jeana L Benwill, Richard J Wallace, Barbara A Brown-Elliott, Foram Thakkar, Varsha Taskar, James G Fox, Ammar Alqaid, Hernaina Bains, Sudeep Gupta, Santanu Dasgupta
Bronchiectasis Nontuberculous mycobacterium (NTMnb) infection is an emerging health problem in breast cancer (BCa) patients. We measured sera exosome proteome in BCa-NTMnb subjects and controls by Mass Spectroscopy. Extracellular matrix protein 1 (ECM1) was detected exclusively in the circulating exosomes of 82% of the BCa-NTMnb cases. Co-culture of ECM1+ exosomes with normal human mammary epithelial cells induced epithelial to mesenchymal transition accompanied by increased Vimentin/CDH1 expression ratio and Glutamate production...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28148635/high-dose-immunosuppressive-therapy-and-autologous-hct-for-relapsing-remitting-ms
#20
Richard A Nash, George J Hutton, Michael K Racke, Uday Popat, Steven M Devine, Kaitlyn C Steinmiller, Linda M Griffith, Paolo A Muraro, Harry Openshaw, Peter H Sayre, Olaf Stuve, Douglas L Arnold, Mark H Wener, George E Georges, Annette Wundes, George H Kraft, James D Bowen
OBJECTIVE: To evaluate the safety, efficacy, and durability of multiple sclerosis (MS) disease stabilization after high-dose immunosuppressive therapy (HDIT) and autologous hematopoietic cell transplantation (HCT). METHODS: High-Dose Immunosuppression and Autologous Transplantation for Multiple Sclerosis (HALT-MS) is a phase II clinical trial of HDIT/HCT for patients with relapsing-remitting (RR) MS who experienced relapses with disability progression (Expanded Disability Status Scale [EDSS] 3...
February 28, 2017: Neurology
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