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William T McGee
No abstract text is available yet for this article.
January 2018: Annals of Cardiac Anaesthesia
Richard J Lindsay, Jan Siess, David P Lohry, Trevor S McGee, Jordan S Ritchie, Quentin R Johnson, Tongye Shen
We have developed a method to capture the essential conformational dynamics of folded biopolymers using statistical analysis of coarse-grained segment-segment contacts. Previously, the residue-residue contact analysis of simulation trajectories was successfully applied to the detection of conformational switching motions in biomolecular complexes. However, the application to large protein systems (larger than 1000 amino acid residues) is challenging using the description of residue contacts. Also, the residue-based method cannot be used to compare proteins with different sequences...
January 14, 2018: Journal of Chemical Physics
Scott Bottoms, Quinn Dickinson, Mick McGee, Li Hinchman, Alan Higbee, Alex Hebert, Jose Serate, Dan Xie, Yaoping Zhang, Joshua J Coon, Chad L Myers, Robert Landick, Jeff S Piotrowski
BACKGROUND: Gamma valerolactone (GVL) treatment of lignocellulosic bomass is a promising technology for degradation of biomass for biofuel production; however, GVL is toxic to fermentative microbes. Using a combination of chemical genomics with the yeast (Saccharomyces cerevisiae) deletion collection to identify sensitive and resistant mutants, and chemical proteomics to monitor protein abundance in the presence of GVL, we sought to understand the mechanism toxicity and resistance to GVL with the goal of engineering a GVL-tolerant, xylose-fermenting yeast...
January 12, 2018: Microbial Cell Factories
Erin L Doyle, Christy L Fillman, Nathan S Reyna, Deborah M Tobiason, Daniel E Westholm, Jonathan L Askins, Brittany P Backus, Ashlynn C Baker, Harrison S Ballard, Paul J Bisesi, Logan Bond, Deanna Byrnes, Hannah Carlstedt, Kinnon S Dodson, Megan J Fallert, Kyla J Foster, Daniel N Games, Tristan R Grams, Nancy A Guild, Autumn Hurd, Nicholas Iwata, Cassidy R Kepler, Lucinda R Krenzke, Kelly Luekens, Jackie Lewis, Cali McEntee, Justin C McGee, Noah Nalley, Ruth C Plymale, Jade Prochaska, Reid G Rogers, Jessica B Schipper, Kelsey Snyder, Kali Uhrich, Chelsey D Vermillion, Sarah K Vickers, Meredyth D Wenta, Tyler Z Yates, Chas F Young, Ty H Stoner, Welkin H Pope, Deborah Jacobs-Sera, Rebecca A Garlena, Daniel A Russell, Steven G Cresawn, Graham F Hatfull
Four bacteriophages infecting Mycobacterium smegmatis mc2155 (three belonging to subcluster P1 and one belonging to subcluster P2) were isolated from soil and sequenced. All four phages are similar in the left arm of their genomes, but the P2 phage differs in the right arm. All four genomes contain features of temperate phages.
January 11, 2018: Genome Announcements
Michael R Pranzatelli, Nathan R McGee
No abstract text is available yet for this article.
March 2018: Neurology® Neuroimmunology & Neuroinflammation
Aubyn C Stahmer, Jessica Suhrheinrich, Patricia L Schetter, Elizabeth McGee Hassrick
BACKGROUND: This study examines how system-wide (i.e., region, district, and school) mechanisms such as leadership support, training requirements, structure, collaboration, and education affect the use of evidence-based practices (EBPs) in schools and how this affects the outcomes for students with autism spectrum disorder (ASD). Despite growing evidence for the positive effects of EBPs for ASD, these practices are not consistently or effectively used in schools. Although special education programs are mandated to use EBPs, there are very few evidence-based methods for selecting, implementing, and sustaining EBPs...
January 8, 2018: Implementation Science: IS
Cameron S Thorpe, Joshua R Niska, Daniel C Brunnhoelzl, Lisa A McGee, Christy M Kesslering, William F Hartsell, Carlos E Vargas
No abstract text is available yet for this article.
January 5, 2018: Acta Oncologica
Qianyi Ma, Paula M Jacobi, Brian T Emmer, Colin A Kretz, Ayse Bilge Ozel, Beth McGee, Chava Kimchi-Sarfaty, David Ginsburg, Jun Z Li, Karl C Desch
The metalloprotease ADAMTS13 cleaves von Willebrand factor (VWF) in circulating blood, limiting the size of VWF multimers and regulating VWF activity. Abnormal regulation of VWF contributes to bleeding and to thrombotic disorders. ADAMTS13 levels in plasma are highly variable among healthy individuals, although the heritability and the genetic determinants of this variation are unclear. We performed genome-wide association studies of plasma ADAMTS13 concentrations in 3244 individuals from 2 independent cohorts of healthy individuals...
June 27, 2017: Blood Advances
Andrew C Prince, Andrew S McGee, Herrick Siegel, Eben L Rosenthal, Nicole K Behnke, Jason M Warram
BACKGROUND AND OBJECTIVES: Soft tissue sarcomas (STS) are mesenchymal malignancies. Treatment mainstay is surgical resection with negative margins ± adjuvant treatment. Fluorescence-guided surgical (FGS) resection can delineate intraoperative margins; FGS has improved oncologic outcomes in other malignancies. This novel strategy may minimize resection-associated morbidity while improving local tumor control. METHODS: We evaluate the tumor-targeting specificity and utility of fluorescence-imaging agents to provide disease-specific contrast...
December 28, 2017: Journal of Surgical Oncology
John H McGee, So Youn Shim, Seung-Joo Lee, Paige K Swanson, Yanting Jiang, Michael A Durney, Gregory L Verdine
The Ras proteins are aberrantly activated in a wide range of human cancers, often endowing tumors with aggressive properties and resistance to therapy. Decades of effort to develop direct Ras inhibitors for clinical use have thus far failed, largely because of a lack of adequate small-molecule binding pockets on the Ras surface. Here, we report the discovery of Ras-binding miniproteins from a naive library, and their evolution to afford versions with mid-picomolar affinity to Ras. A series of biochemical experiments indicated that these miniproteins bind to the Ras effector domain as dimers, and high-resolution crystal structures revealed that these miniprotein dimers bind Ras in an unprecedented mode, in which the Ras effector domain is remodeled to expose an extended pocket that connects two isolated pockets previously found to engage small-molecule ligands...
December 27, 2017: Journal of Biological Chemistry
Andrew McGee, Franklin G Miller
BACKGROUND: A competent patient has the right to refuse foods and fluids even if the patient will die. The exercise of this right, known as voluntarily stopping eating and drinking (VSED), is sometimes proposed as an alternative to physician assisted suicide. However, there is ethical and legal uncertainty about physician involvement in VSED. Are physicians advising of this option, or making patients comfortable while they undertake VSED, assisting suicide? This paper attempts to resolve this ethical and legal uncertainty...
December 27, 2017: BMC Medicine
Jocelyn Shealy McGee, Holly Carlson Zhao, Dennis R Myers, Hannah Seela Eaton
Attention to spiritual diversity is necessary for the provision of culturally informed clinical care for people with early-stage dementia and their family members. In this article, an evidence-based theoretical framework for conceptualizing spiritual diversity is described in detail (Pargament, 2011). The framework is then applied to two clinical case studies of people living with early-stage dementia to elucidate the multilayered components of spiritual diversity in this population. The case studies were selected from a larger mixed-methods study on spirituality, positive psychological factors, health, and well-being in people living with early-stage dementia and their family members...
October 24, 2017: Clinical Gerontologist
Arin M Ellingson, Corey McGee, David J Nuckley, Michelle Ferkul, Virgil G Mathiowetz
Measurement of the dynamic kinetics involved in opening a jar may enable health care professionals to understand and train individuals in optimal hand/grip mechanics. This technical note details the design, validity, and reproducibility testing of a mimetic jar capable of measuring the forces and moments and isolated digital forces applied to the lid of the jar. An ecological jar instrument was designed with a torque limiter to provide a natural opening mechanism while a six-axis load cell and force sensing resistors recorded the way individuals applied force to the jar and lid during opening of a sealed container...
January 2017: Journal of Rehabilitation and Assistive Technologies Engineering
Andres R Henriquez, Samantha J Snow, Mette C Schladweiler, Colette N Miller, Janice A Dye, Allen D Ledbetter, Judy E Richards, Kevin Mauge-Lewis, Marie A McGee, Urmila P Kodavanti
Recent studies showed that the circulating stress hormones, epinephrine and corticosterone/cortisol, are involved in mediating ozone-induced pulmonary effects through the activation of the sympathetic-adrenal-medullary (SAM) and hypothalamus-pituitary-adrenal (HPA) axes. Hence, we examined the role of adrenergic and glucocorticoid receptor inhibition in ozone-induced pulmonary injury and inflammation. Male 12-week old Wistar-Kyoto rats were pretreated daily for 7days with propranolol (PROP; a non-selective β adrenergic receptor [AR] antagonist, 10mg/kg, i...
January 15, 2018: Toxicology and Applied Pharmacology
Anirudh Vashisht, Michael Morykwas, Ashok N Hegde, Louis Argenta, Maria P McGee
Aging in humans and animals is associated with gradual and variable changes in some cognitive functions, but what causes them and explains individual variations remains unclear. Hydration decreases with aging but whether dehydration contributes to cognitive dysfunction is not known. The brain hydration of aging mice was determined by colloidosmotic-pressure titration. Dehydration increased with age from ∼76 mmHg at 6 weeks to ∼105 mmHg at 40 weeks, or a progressive ∼10 percent loss of brain water but seemed to level off afterward...
December 12, 2017: Brain Research
Jun Liu, Ankur Goswami, Keren Jiang, Faheem Khan, Seokbeom Kim, Ryan McGee, Zhi Li, Zhiyu Hu, Jungchul Lee, Thomas Thundat
The direct conversion of mechanical energy into electricity by nanomaterial-based devices offers potential for green energy harvesting 1-3 . A conventional triboelectric nanogenerator converts frictional energy into electricity by producing alternating current (a.c.) triboelectricity. However, this approach is limited by low current density and the need for rectification 2 . Here, we show that continuous direct-current (d.c.) with a maximum density of 106 A m-2 can be directly generated by a sliding Schottky nanocontact without the application of an external voltage...
December 11, 2017: Nature Nanotechnology
Conor F McGee
Agaricus bisporus is the most widely cultivated mushroom species in the world. Cultivation is commenced by inoculating beds of semi-pasteurised composted organic substrate with a pure spawn of A. bisporus. The A. bisporus mycelium subsequently colonises the composted substrate by degrading the organic material to release nutrients. A layer of peat, often called "casing soil", is laid upon the surface of the composted substrate to induce the development of the mushroom crop and maintain compost environmental conditions...
December 8, 2017: Applied Microbiology and Biotechnology
Julius Alexander McGee, Christina Ergas, Patrick Trent Greiner, Matthew Thomas Clement
This study examines how the relationship between urbanization (measured as the percentage of total population living in urban areas) and the carbon intensity of well-being (CIWB) (measured as a ratio of carbon dioxide emissions and life expectancy) in most nations from 1960-2013 varies based on the economic context and whereabouts of a substantial portion of a nation's urban population. To accomplish this, we use the United Nations' (UN) definition of slum households to identify developing countries that have substantial slum populations, and estimate a Prais-Winsten regression model with panel-corrected standard errors (PCSE), allowing for disturbances that are heteroskedastic and contemporaneously correlated across panels...
2017: PloS One
Charles Foster, Jonathan Herring
No abstract text is available yet for this article.
December 7, 2017: Journal of Medical Ethics
A P Da Cunha, Q Zhang, M Prentiss, X Q Wu, V Kainz, Y Y Xu, J Vrouvlianis, H Li, N Rangaswamy, B Leehy, T L McGee, C L Bell, C E Bigelow, V Kansara, Q Medley, Q Huang, H Y Wu
PURPOSE: The concept of tissue-dependent cytokine hierarchy has been demonstrated in a number of diseases, but it has not been investigated in ophthalmic diseases. Here, we evaluated the functional hierarchy of interleukin-1β (IL-1β), IL-6, IL-17A, and tumor necrosis factor (TNF) in the induction of ocular inflammation. MATERIALS AND METHODS: We delivered adeno-associated virus (AAV) vectors expressing IL-1β, IL-6, IL-17A, or TNF intravitreally in naïve C57/BL6 mice and compared and contrasted the inflammatory effects in the eye 5 weeks after AAV-mediated gene transfer...
December 4, 2017: Current Eye Research
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