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Christopher Thompson

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https://www.readbyqxmd.com/read/28822588/characterization-of-reactive-flow-induced-evolution-of-carbonate-rocks-using-digital-core-analysis-part-2-calculation-of-the-evolution-of-percolation-and-transport-properties
#1
Jafar Qajar, Christoph H Arns
Percolation of reactive fluids in carbonate rocks affects the rock microstructure and hence changes the rock macroscopic properties. In Part 1 paper, we examined the voxel-wise evolution of microstructure of the rock in terms of mineral dissolution/detachment, mineral deposition, and unchanged regions. In the present work, we investigate the relationships between changes in two characteristic transport properties, i.e. permeability and electrical conductivity and two critical parameters of the pore phase, i...
August 12, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28820381/possible-role-of-fish-as-transport-hosts-for-dracunculus-spp-larvae
#2
Christopher A Cleveland, Mark L Eberhard, Alec T Thompson, Stephen J Smith, Hubert Zirimwabagabo, Robert Bringolf, Michael J Yabsley
To inform Dracunculus medinensis (Guinea worm) eradication efforts, we evaluated the role of fish as transport hosts for Dracunculus worms. Ferrets fed fish that had ingested infected copepods became infected, highlighting the importance of recommendations to cook fish, bury entrails, and prevent dogs from consuming raw fish and entrails.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28815753/aruncin-b-synthetic-studies-structural-reassignment-and-biological-evaluation
#3
Aubert Ribaucourt, Christopher Towers, Laia Josa-Culleré, Frances Willenbrock, Amber Thompson, David M Hodgson
A ring-closing alkene metathesis (RCM) / oxyselenation-selenoxide elimination sequence was established to the sodium salts E- and Z-25 of the originally proposed structure for the recently isolated cytotoxin aruncin B (1), as well as to the sodium salt Z-34 of a related ethyl ether regioisomer; however, none of their corresponding free acids could be obtained. Their acid sensitivity, together with detailed analysis of the spectroscopic data indicated that profound structural revision was necessary. This led to reassignment of aruncin B as a Z-γ-alkylidenebutenolide Z-36...
August 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28814670/mtg16-is-a-tumor-suppressor-in-colitis-associated-carcinoma
#4
Elizabeth M McDonough, Caitlyn W Barrett, Bobak Parang, Mukul K Mittal, J Joshua Smith, Amber M Bradley, Yash A Choksi, Lori A Coburn, Sarah P Short, Joshua J Thompson, Baolin Zhang, Shenika V Poindexter, Melissa A Fischer, Xi Chen, Jiang Li, Frank L Revetta, Rishi Naik, M Kay Washington, Michael J Rosen, Scott W Hiebert, Keith T Wilson, Christopher S Williams
MTG16 is a member of the myeloid translocation gene (MTG) family of transcriptional corepressors. While MTGs were originally identified in chromosomal translocations in acute myeloid leukemia, recent studies have uncovered a role in intestinal biology. For example, Mtg16-/- mice have increased intestinal proliferation and are more sensitive to intestinal injury in colitis models. MTG16 is also underexpressed in patients with moderate/severe ulcerative colitis. Based on these findings, we postulated that MTG16 might protect against colitis-associated carcinogenesis...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28809386/complications-of-bariatric-surgery-what-you-can-expect-to-see-in-your-gi-practice
#5
REVIEW
Allison R Schulman, Christopher C Thompson
Obesity is one of the most significant health problems worldwide. Bariatric surgery has become one of the fastest growing operative procedures and has gained acceptance as the leading option for weight-loss. Despite improvement in the performance of bariatric surgical procedures, complications are not uncommon. There are a number of unique complications that arise in this patient population and require specific knowledge for proper management. Furthermore, conditions unrelated to the altered anatomy typically require a different management strategy...
August 15, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28805660/prolyl-hydroxylase-2-inactivation-enhances-glycogen-storage-and-promotes-excessive-neutrophilic-responses
#6
Pranvera Sadiku, Joseph A Willson, Rebecca S Dickinson, Fiona Murphy, Alison J Harris, Amy Lewis, David Sammut, Ananda S Mirchandani, Eilise Ryan, Emily R Watts, A A Roger Thompson, Helen M Marriott, David H Dockrell, Cormac T Taylor, Martin Schneider, Patrick H Maxwell, Edwin R Chilvers, Massimilliano Mazzone, Veronica Moral, Chris W Pugh, Peter J Ratcliffe, Christopher J Schofield, Bart Ghesquiere, Peter Carmeliet, Moira Kb Whyte, Sarah R Walmsley
Fully activated innate immune cells are required for effective responses to infection, but their prompt deactivation and removal are essential for limiting tissue damage. Here, we have identified a critical role for the prolyl hydroxylase enzyme Phd2 in maintaining the balance between appropriate, predominantly neutrophil-mediated pathogen clearance and resolution of the innate immune response. We demonstrate that myeloid-specific loss of Phd2 resulted in an exaggerated inflammatory response to Streptococcus pneumonia, with increases in neutrophil motility, functional capacity, and survival...
August 14, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28802556/randomized-sham-controlled-trials-in-endoscopy-a-systematic-review-and-meta-analysis-of-adverse-events
#7
REVIEW
Allison R Schulman, Violeta Popov, Christopher C Thompson
BACKGROUND AND AIMS: Sham procedures in endoscopy are used with the intention of controlling for placebo response, potentially allowing more precise evaluation of treatment effect. Nevertheless, this type of study may impose significant risk without potential benefit for those in the sham group. The aim of the current study is to systematically review and analyze the endoscopic literature to assess the safety of sham controls. METHODS: MEDLINE and Embase databases were searched for endoscopic sham procedures for all dates through July 2017...
August 9, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28799115/remnant-gastropathy-due-to-bile-reflux-after-roux-en-y-gastric-bypass-a-unique-cause-of-abdominal-pain-and-successful-treatment-with-ursodiol
#8
Nitin Kumar, Christopher C Thompson
BACKGROUND: Chronic abdominal pain can occur after Roux-en-Y gastric bypass (RYGB), and can remain unexplained despite extensive investigation. Bile can pool in the gastric remnant and create a bile reflux gastropathy. The aim of this study was to assess gastric remnant findings in patients with RYGB and chronic abdominal pain of unclear etiology, and to determine the effectiveness of ursodiol therapy for patients with confirmed remnant gastropathy. METHODS: All consecutive patients with RYGB and a diagnosis of chronic abdominal pain, and a negative diagnostic workup (including physical examination, routine laboratory work, cross-sectional imaging, and standard upper endoscopy), who underwent device-assisted enteroscopy for evaluation of the gastric remnant, were included...
August 10, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28783802/association-of-neonatal-glycemia-with-neurodevelopmental-outcomes-at-4-5-years
#9
Christopher J D McKinlay, Jane M Alsweiler, Nicola S Anstice, Nataliia Burakevych, Arijit Chakraborty, J Geoffrey Chase, Gregory D Gamble, Deborah L Harris, Robert J Jacobs, Yannan Jiang, Nabin Paudel, Ryan J San Diego, Benjamin Thompson, Trecia A Wouldes, Jane E Harding
Importance: Hypoglycemia is common during neonatal transition and may cause permanent neurological impairment, but optimal intervention thresholds are unknown. Objective: To test the hypothesis that neurodevelopment at 4.5 years is related to the severity and frequency of neonatal hypoglycemia. Design, Setting, and Participants: The Children With Hypoglycemia and Their Later Development (CHYLD) Study is a prospective cohort investigation of moderate to late preterm and term infants born at risk of hypoglycemia...
August 7, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28782132/aspirin-and-incident-depressive-symptoms-a-longitudinal-cohort-study-over-8%C3%A2-years
#10
Nicola Veronese, Ai Koyanagi, Brendon Stubbs, Marco Solmi, Michele Fornaro, Brisa F Fernandes, Christoph Muller, Trevor Thompson, André F Carvalho, Stefania Maggi
OBJECTIVE: Aspirin exhibits anti-atherosclerotic and anti-inflammatory properties-two potential risk factors for depression. The relationship between aspirin use and depression, however, remains unclear. We investigated whether the aspirin use is associated with a decreased incidence of depressive symptoms in a large North American cohort. METHODS: Data from the Osteoarthritis Initiative dataset, a multicenter, longitudinal study on community-dwelling adults was analyzed...
August 6, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28768312/association-of-white-matter-with-core-cognitive-deficits-in-patients-with-schizophrenia
#11
Peter Kochunov, Thomas R Coyle, Laura M Rowland, Neda Jahanshad, Paul M Thompson, Sinead Kelly, Xiaoming Du, Hemalatha Sampath, Heather Bruce, Joshua Chiappelli, Meghann Ryan, Feven Fisseha, Anya Savransky, Bhim Adhikari, Shuo Chen, Sara A Paciga, Christopher D Whelan, Zhiyong Xie, Craig L Hyde, Xing Chen, Christian R Schubert, Patricio O'Donnell, L Elliot Hong
Importance: Efforts to remediate the multiple cognitive function impairments in schizophrenia should consider white matter as one of the underlying neural mechanisms. Objective: To determine whether altered structural brain connectivity is responsible for 2 of the core cognitive deficits in schizophrenia- reduced information processing speed and impaired working memory. Design, Setting, and Participants: This cross-sectional study design took place in outpatient clinics from August 1, 2004, to August 31, 2015...
August 2, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28766266/utility-of-bile-acid-scintigraphy-in-the-diagnosis-of-remnant-gastropathy-in-patients-with-roux-en-y-gastric-bypass
#12
Allison R Schulman, Christopher C Thompson
No abstract text is available yet for this article.
August 1, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28760787/bridging-the-age-gap-in-breast-cancer-evaluation-of-decision-support-interventions-for-older-women-with-operable-breast-cancer-protocol-for-a-cluster-randomised-controlled-trial
#13
Karen Collins, Malcolm Reed, Kate Lifford, Maria Burton, Adrian Edwards, Alistair Ring, Katherine Brain, Helena Harder, Thompson Robinson, Kwok Leung Cheung, Jenna Morgan, Riccardo Audisio, Susan Ward, Paul Richards, Charlene Martin, Tim Chater, Kirsty Pemberton, Anthony Nettleship, Christopher Murray, Stephen Walters, Oscar Bortolami, Fiona Armitage, Robert Leonard, Jacqui Gath, Deirdre Revell, Tracy Green, Lynda Wyld
INTRODUCTION: While breast cancer outcomes are improving steadily in younger women due to advances in screening and improved therapies, there has been little change in outcomes among the older age group. It is inevitable that comorbidities/frailty rates are higher, which may increase the risks of some breast cancer treatments such as surgery and chemotherapy, many older women are healthy and may benefit from their use. Adjusting treatment regimens appropriately for age/comorbidity/frailty is variable and largely non-evidence based, specifically with regard to rates of surgery for operable oestrogen receptor-positive disease and rates of chemotherapy for high-risk disease...
July 31, 2017: BMJ Open
https://www.readbyqxmd.com/read/28750837/eus-guided-gastroenterostomy-a-multicenter-study-comparing-the-direct-and-balloon-assisted-techniques
#14
Yen-I Chen, Rastislav Kunda, Andrew C Storm, Hanaa Dakour Aridi, Christopher C Thompson, Jose Nieto, Ali A Siddiqui, Theodore James, Shayan Irani, Majidah Bukhari, Olaya Brewer Gutierrez, Amol Agarwal, Lea Fayad, Robert Moran, Nuha Alammar, Omid Sanaei, Marcia I Canto, Vikesh K Singh, Todd H Baron, Mouen A Khashab
BACKGROUND: Endoscopic ultrasound-guided gastroenterostomy (EUS-GE) is a developing modality in the management of gastric outlet obstruction (GOO) with several technical approaches including the direct and balloon-assisted techniques. The aim of this study is to compare the direct with the balloon-assisted modality while further defining the role of EUS-GE in GOO. METHODS: Multicenter, retrospective study involving consecutive patients who underwent EUS gastroenterostomy with the direct or balloon-assisted technique for GOO (January 2014-October 2016)...
July 24, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28742614/compression-socks-worn-during-flight-and-hemostatic-balance-in-boston-marathon-runners-on-oral-contraceptives
#15
Beth A Taylor, Amanda L Zaleski, Kevin D Ballard, Gregory A Panza, Antonio B Fernandez, Lauren Corso, Linda S Pescatello, Aaron L Baggish, Christopher Troyanos, Paul D Thompson
OBJECTIVE: To investigate the effect of oral contraceptive (OC) use and compression socks on hemostatic activation in women flying cross-country to and from a marathon. DESIGN: Prospective study. SETTING: 2015 Boston Marathon. PARTICIPANTS: Women were divided into non-OC using (CONTROL; n = 12), OC-using (OC; n = 15), and OC-using plus compression sock (OC + SOCK; n = 14) groups. INTERVENTION: Women in OC + SOCK wore compression socks during flights to and from the marathon...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28740414/the-role-of-endoscopic-therapy-in-obesity-management-intragastric-balloons-and-aspiration-therapy
#16
REVIEW
Nitin Kumar, Shelby Sullivan, Christopher C Thompson
Weight management is increasingly incorporating endoscopic bariatric therapy (EBT). As the global burden of obesity and its comorbidities has increased, it is evident that novel therapeutic approaches will be necessary to address the obesity epidemic. EBTs offer greater efficacy than diet and lifestyle modification and lower invasiveness than bariatric surgery. The US Food and Drug Administration has approved two intragastric balloons and aspiration therapy for the treatment of obesity: Apollo Orbera is indicated for the treatment of Class I and Class II obesity, Re Shape Integrated Dual Balloon system is indicated for the same range with a comorbidity, and Aspire Bariatrics AspireAssist is approved for patients with a body mass index of 35-55 kg/m(2)...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/28738187/presymptomatic-atrophy-in-autosomal-dominant-alzheimer-s-disease-a%C3%A2-serial-mri-study
#17
Kirsi M Kinnunen, David M Cash, Teresa Poole, Chris Frost, Tammie L S Benzinger, R Laila Ahsan, Kelvin K Leung, M Jorge Cardoso, Marc Modat, Ian B Malone, John C Morris, Randall J Bateman, Daniel S Marcus, Alison Goate, Stephen Salloway, Stephen Correia, Reisa A Sperling, Jasmeer P Chhatwal, Richard Mayeux, Adam M Brickman, Ralph N Martins, Martin R Farlow, Bernardino Ghetti, Andrew J Saykin, Clifford R Jack, Peter R Schofield, Eric McDade, Michael W Weiner, John M Ringman, Paul M Thompson, Colin L Masters, Christopher C Rowe, Martin N Rossor, Sebastien Ourselin, Nick C Fox
INTRODUCTION: Identifying at what point atrophy rates first change in Alzheimer's disease is important for informing design of presymptomatic trials. METHODS: Serial T1-weighed magnetic resonance imaging scans of 94 participants (28 noncarriers, 66 carriers) from the Dominantly Inherited Alzheimer Network were used to measure brain, ventricular, and hippocampal atrophy rates. For each structure, nonlinear mixed-effects models estimated the change-points when atrophy rates deviate from normal and the rates of change before and after this point...
July 21, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28734785/impact-of-magnetic-stirring-on-stainless-steel-integrity-effect-on-biopharmaceutical-processing
#18
Christopher Thompson, Kelly Wilson, Yoen Joo Kim, Min Xie, William K Wang, Michaela Wendeler
Stainless steel containers are widely used in the pharmaceutical and biopharmaceutical industry for the storage of buffers, process intermediates, and purified drug substance. They are generally held to be corrosion resistant, biocompatible, and nonreactive, although it is well established that trace amounts of metal ions can leach from stainless steel equipment into biopharmaceutical products. We report here that the use of stainless steel containers in conjunction with magnetic stirring bars leads to significantly aggravated metal contamination, consisting of both metal particles and significantly elevated metal ions in solution, the degree of which is several orders of magnitude higher than described for static conditions...
July 20, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28731801/diversification-of-trait-combinations-in-coevolving-plant-and-insect-lineages
#19
John N Thompson, Christopher Schwind, Magne Friberg
Closely related species often have similar traits and sometimes interact with the same species. A crucial problem in evolutionary ecology is therefore to understand how coevolving species diverge when they interact with a set of closely related species from another lineage rather than with a single species. We evaluated geographic differences in the floral morphology of all woodland star plant species (Lithophragma, Saxifragaceae) that are pollinated by Greya (Prodoxidae) moths. Flowers of each woodland star species differed depending on whether plants interact locally with one, two, or no pollinating moth species...
August 2017: American Naturalist
https://www.readbyqxmd.com/read/28717384/accelerating-root-system-phenotyping-of-seedlings-through-a-computer-assisted-processing-pipeline
#20
Lionel X Dupuy, Gladys Wright, Jacqueline A Thompson, Anna Taylor, Sebastien Dekeyser, Christopher P White, William T B Thomas, Mark Nightingale, John P Hammond, Neil S Graham, Catherine L Thomas, Martin R Broadley, Philip J White
BACKGROUND: There are numerous systems and techniques to measure the growth of plant roots. However, phenotyping large numbers of plant roots for breeding and genetic analyses remains challenging. One major difficulty is to achieve high throughput and resolution at a reasonable cost per plant sample. Here we describe a cost-effective root phenotyping pipeline, on which we perform time and accuracy benchmarking to identify bottlenecks in such pipelines and strategies for their acceleration...
2017: Plant Methods
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