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https://www.readbyqxmd.com/read/29341859/an-indoor-air-quality-evaluation-in-a-residential-retrofit-project-using-spray-polyurethane-foam
#1
Shen Tian, Scott Ecoff, John Sebroski, Jason Miller, Harold Rickenbacker, Melissa Bilec
Understanding of indoor air quality (IAQ) during and after spray polyurethane foam (SPF) application is essential to protect the health of both workers and building occupants. Previous efforts such as field monitoring, micro-chamber/spray booth emission studies and fate/transport modeling have been conducted to understand the chemical exposure of SPF and guide risk mitigation strategies. However, each type of research has its limitation and can only reveal partial information on the relationship between SPF and IAQ...
January 17, 2018: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29335648/rapid-chromatin-repression-by-aire-provides-precise-control-of-immune-tolerance
#2
Andrew S Koh, Erik L Miller, Jason D Buenrostro, David M Moskowitz, Jing Wang, William J Greenleaf, Howard Y Chang, Gerald R Crabtree
Aire mediates the expression of tissue-specific antigens in thymic epithelial cells to promote tolerance against self-reactive T lymphocytes. However, the mechanism that allows expression of tissue-specific genes at levels that prevent harm is unknown. Here we show that Brg1 generates accessibility at tissue-specific loci to impose central tolerance. We found that Aire has an intrinsic repressive function that restricts chromatin accessibility and opposes Brg1 across the genome. Aire exerted this repressive influence within minutes after recruitment to chromatin and restrained the amplitude of active transcription...
January 15, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29333208/integrating-cadaver-needle-forces-into-a-haptic-robotic-simulator
#3
David F Pepley, Mary A Yovanoff, Katelin A Mirkin, Scarlett R Miller, David C Han, Jason Z Moore
Accurate force simulation is essential to haptic simulators for surgical training. Factors such as tissue inhomogeneity pose unique challenges for simulating needle forces. To aid in the development of haptic needle insertion simulators, a handheld force sensing syringe was created to measure the motion and forces of needle insertions. Five needle insertions were performed into the neck of a cadaver using the force sensing syringe. Based on these measurements a piecewise exponential needle force characterization, was implemented into a haptic central venous catheterization (CVC) simulator...
March 2018: Journal of Medical Devices
https://www.readbyqxmd.com/read/29329394/analysis-of-the%C3%A2-aedes-albopictus%C3%A2-c6-36-genome-provides-insight-into-cell-line-utility-for-viral-propagation
#4
Jason R Miller, Sergey Koren, Kari A Dilley, Vinita Puri, David M Brown, Derek M Harkins, Françoise Thibaud-Nissen, Benjamin Rosen, Xiao-Guang Chen, Zhijian Tu, Igor V Sharakhov, Maria V Sharakhova, Robert Sebra, Timothy B Stockwell, Nicholas H Bergman, Granger G Sutton, Adam M Phillippy, Peter M Piermarini, Reed S Shabman
Background: The 50-year old Aedes albopictus C6/36 cell line is a resource for the detection, amplification, and analysis of mosquito-borne viruses including Zika, dengue, and chikungunya. The cell line is derived from an unknown number of larvae from an unspecified strain of Aedes albopictus mosquitoes. Toward improved utility of the cell line for research in virus transmission, we present an annotated assembly of the C6/36 genome. Results: The C6/36 genome assembly has the largest contig N50 (3...
January 10, 2018: GigaScience
https://www.readbyqxmd.com/read/29324579/traditional-vs-suspended-pushup-muscle-activation-in-athletes-and-sedentary-females
#5
Majid M Syed-Abdul, Dhwani S Soni, William M Miller, Ryan J Johnson, Jeremy T Barnes, Thomas J Pujol, Jason D Wagganer
Many strength training (ST) programs incorporate pushup exercises, which primarily activate upper body muscles. Past data supports the fact that shoulder girdle muscles [i.e., triceps (T) and anterior deltoids (AD)] exhibit greater electromyography (EMG) activity when a pushup is performed on an unstable [i.e., suspended (SP)] vs. stable [i.e., traditional (TD)] surface (Andrade, 2011). Sixty-nine healthy female volunteers [soccer players (SO), n=24; gymnasts (GY), n=21; sedentary (SE), n=24) performed three TD and three SP pushups...
January 5, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29322632/approaches-to-sample-size-calculation-for-clinical-trials-in-rare-diseases
#6
Frank Miller, Sarah Zohar, Nigel Stallard, Jason Madan, Martin Posch, Siew Wan Hee, Michael Pearce, Mårten Vågerö, Simon Day
We discuss 3 alternative approaches to sample size calculation: traditional sample size calculation based on power to show a statistically significant effect, sample size calculation based on assurance, and sample size based on a decision-theoretic approach. These approaches are compared head-to-head for clinical trial situations in rare diseases. Specifically, we consider 3 case studies of rare diseases (Lyell disease, adult-onset Still disease, and cystic fibrosis) with the aim to plan the sample size for an upcoming clinical trial...
January 10, 2018: Pharmaceutical Statistics
https://www.readbyqxmd.com/read/29316995/prehospital-modified-heart-score-predictive-of-30-day-adverse-cardiac-events
#7
Jason P Stopyra, William S Harper, Tyson J Higgins, Julia V Prokesova, James E Winslow, Robert D Nelson, Roy L Alson, Christopher A Davis, Gregory B Russell, Chadwick D Miller, Simon A Mahler
Introduction The History, Electrocardiogram (ECG), Age, Risk Factors, and Troponin (HEART) score is a decision aid designed to risk stratify emergency department (ED) patients with acute chest pain. It has been validated for ED use, but it has yet to be evaluated in a prehospital setting. Hypothesis A prehospital modified HEART score can predict major adverse cardiac events (MACE) among undifferentiated chest pain patients transported to the ED. METHODS: A retrospective cohort study of patients with chest pain transported by two county-based Emergency Medical Service (EMS) agencies to a tertiary care center was conducted...
January 10, 2018: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/29312603/intratumoral-heterogeneity-and-tert-promoter-mutations-in-progressive-higher-grade-meningiomas
#8
Tareq A Juratli, Christian Thiede, Mara V A Koerner, Shilpa S Tummala, Dirk Daubner, Ganesh M Shankar, Erik A Williams, Maria Martinez-Lage, Silke Soucek, Katja Robel, Tristan Penson, Mechthild Krause, Steffen Appold, Matthias Meinhardt, Thomas Pinzer, Julie J Miller, Dietmar Krex, Heather A Ely, Ian M Silverman, Jason Christiansen, Gabriele Schackert, Hiroaki Wakimoto, Matthias Kirsch, Priscilla K Brastianos, Daniel P Cahill
Background: Recent studies have reported mutations in the telomerase reverse transcriptase promoter (TERTp) in meningiomas. We sought to determine the frequency, clonality and clinical significance of telomere gene alterations in a cohort of patients with progressive/higher-grade meningiomas. Methods: We characterized 64 temporally- and regionally-distinct specimens from 26 WHO grade III meningioma patients. On initial diagnoses, the meningiomas spanned all WHO grades (3 grade I, 13 grade II and 10 grade III)...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29306514/intermediate-endpoints-after-postprostatectomy-radiotherapy-5-year-distant-metastasis-to-predict-overall-survival
#9
William C Jackson, Krithika Suresh, Vasu Tumati, Steven G Allen, Robert T Dess, Simpa S Salami, Arvin George, Samuel D Kaffenberger, David C Miller, Jason W D Hearn, Shruti Jolly, Rohit Mehra, Brent K Hollenbeck, Ganesh S Palapattu, Matthew Schipper, Felix Y Feng, Todd M Morgan, Neil B Desai, Daniel E Spratt
BACKGROUND: Intermediate clinical endpoints (ICEs) prognostic for overall survival (OS) are needed for men receiving postprostatectomy radiation therapy (PORT) to improve clinical trial design. OBJECTIVE: To identify a potential ICE for men receiving PORT. DESIGN, SETTING, AND PARTICIPANTS: We performed an institutional review board-approved multi-institutional retrospective study of 566 men consecutively treated with PORT at tertiary care centers from 1986 to 2013...
January 3, 2018: European Urology
https://www.readbyqxmd.com/read/29300757/the-effects-of-alternative-splicing-on-mirna-binding-sites-in-bladder-cancer
#10
Seonggyun Han, Dongwook Kim, Manu Shivakumar, Young-Ji Lee, Tullika Garg, Jason E Miller, Ju Han Kim, Dokyoon Kim, Younghee Lee
Eukaryotic organisms have developed a variety of mechanisms to regulate translation post-transcriptionally, including but not limited to the use of miRNA silencing in many species. One method of post-transcriptional regulation is through miRNAs that bind to the 3' UTRs to regulate mRNA abundance and influence protein expression. Therefore, the diversity of mRNA 3' UTRs mediating miRNA binding sites influence miRNA-mediated regulation. Alternative polyadenylation, by shortening mRNA isoforms, increases the diversity of 3' UTRs; moreover, short mRNA isoforms elude miRNA-medicated repression...
2018: PloS One
https://www.readbyqxmd.com/read/29298421/primary-cilium-mediated-retinal-pigment-epithelium-maturation-is-disrupted-in-ciliopathy-patient-cells
#11
Helen Louise May-Simera, Qin Wan, Balendu Shekhar Jha, Juliet Hartford, Vladimir Khristov, Roba Dejene, Justin Chang, Sarita Patnaik, Quanlong Lu, Poulomi Banerjee, Jason Silver, Christine Insinna-Kettenhofen, Dishita Patel, Mostafa Lotfi, May Malicdan, Nathan Hotaling, Arvydas Maminishkis, Rupa Sridharan, Brian Brooks, Kiyoharu Miyagishima, Meral Gunay-Aygun, Rajarshi Pal, Christopher Westlake, Sheldon Miller, Ruchi Sharma, Kapil Bharti
Primary cilia are sensory organelles that protrude from the cell membrane. Defects in the primary cilium cause ciliopathy disorders, with retinal degeneration as a prominent phenotype. Here, we demonstrate that the retinal pigment epithelium (RPE), essential for photoreceptor development and function, requires a functional primary cilium for complete maturation and that RPE maturation defects in ciliopathies precede photoreceptor degeneration. Pharmacologically enhanced ciliogenesis in wild-type induced pluripotent stem cells (iPSC)-RPE leads to fully mature and functional cells...
January 2, 2018: Cell Reports
https://www.readbyqxmd.com/read/29288071/design-and-synthesis-of-a-potent-highly-selective-orally-bioavailable-retinoic-acid-receptor-alpha-agonist
#12
Earl Clarke, Christopher I Jarvis, Maria B Goncalves, S Barret Kalindjian, David R Adams, Jane T Brown, Jason J Shiers, David M A Taddei, Elodie Ravier, Stephanie Barlow, Iain Miller, Vanessa Smith, Alan D Borthwick, Jonathan P T Corcoran
A ligand-based virtual screening exercise examining likely bioactive conformations of AM 580 (2) and AGN 193836 (3) was used to identify the novel, less lipophilic RARα agonist 4-(3,5-dichloro-4-ethoxybenzamido)benzoic acid 5, which has good selectivity over the RARβ, and RARγ receptors. Analysis of the medicinal chemistry parameters of the 3,5-substituents of derivatives of template 5 enabled us to design a class of drug-like molecules with lower intrinsic clearance and higher oral bioavailability which led to the novel RARα agonist 4-(3-chloro-4-ethoxy-5-isopropoxybenzamido)-2-methylbenzoic acid 56 that has high RARα potency and excellent selectivity versus RARβ (2 orders of magnitude) and RARγ (4 orders of magnitude) at both the human and mouse RAR receptors with improved drug-like properties...
December 9, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29286232/development-of-cationic-quaternary-ammonium-sulfonamide-amino-lipids-csals-for-nucleic-acid-delivery
#13
Jason B Miller, Petra Kos, Victor Tieu, Kejin Zhou, Daniel John Siegwart
Lipid nanoparticles (LNPs) currently comprise the most effective carrier class for delivery of small RNAs. Among lipid carriers, charge unbalanced lipids are relatively unexplored synthetically. Herein, we developed and evaluated a novel collection of compounds for siRNA delivery, termed Cationic quaternary ammonium Sulfonamide Amino Lipids (CSALs). Formulated CSAL LNPs containing cholesterol, DSPC, and lipid PEG exhibited biophysical property trends directly related to the CSAL chemical structure. Lead CSAL LNPs were identified using an siRNA delivery screen...
December 29, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29261820/a-method-for-attributing-patient-level-metrics-to-rotating-providers-in-an-inpatient-setting
#14
Carrie A Herzke, Henry J Michtalik, Nowella Durkin, Joseph Finkelstein, Amy Deutschendorf, Jason Miller, Curtis Leung, Daniel J Brotman
BACKGROUND: Individual provider performance drives group metrics, and increasingly, individual providers are held accountable for these metrics. However, appropriate attribution can be challenging, particularly when multiple providers care for a single patient. OBJECTIVE: We sought to develop and operationalize individual provider scorecards that fairly attribute patient-level metrics, such as length of stay and patient satisfaction, to individual hospitalists involved in each patient's care...
December 20, 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/29249664/in%C3%A2-vitro-induction-and-in%C3%A2-vivo-engraftment-of-lung-bud-tip-progenitor-cells-derived-from-human-pluripotent-stem-cells
#15
Alyssa J Miller, David R Hill, Melinda S Nagy, Yoshiro Aoki, Briana R Dye, Alana M Chin, Sha Huang, Felix Zhu, Eric S White, Vibha Lama, Jason R Spence
The current study aimed to understand the developmental mechanisms regulating bud tip progenitor cells in the human fetal lung, which are present during branching morphogenesis, and to use this information to induce a bud tip progenitor-like population from human pluripotent stem cells (hPSCs) in vitro. We identified cues that maintained isolated human fetal lung epithelial bud tip progenitor cells in vitro and induced three-dimensional hPSC-derived organoids with bud tip-like domains. Bud tip-like domains could be isolated, expanded, and maintained as a nearly homogeneous population...
December 12, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29232403/genomics-clarifies-taxonomic-boundaries-in-a-difficult-species-complex
#16
Jason Baumsteiger, Peter B Moyle, Andres Aguilar, Sean M O'Rourke, Michael R Miller
Efforts to taxonomically delineate species are often confounded with conflicting information and subjective interpretation. Advances in genomic methods have resulted in a new approach to taxonomic identification that stands to greatly reduce much of this conflict. This approach is ideal for species complexes, where divergence times are recent (evolutionarily) and lineages less well defined. The California Roach/Hitch fish species complex is an excellent example, experiencing a convoluted geologic history, diverse habitats, conflicting species designations and potential admixture between species...
2017: PloS One
https://www.readbyqxmd.com/read/29227803/editorial-comment
#17
Brady L Miller, E Jason Abel
No abstract text is available yet for this article.
December 8, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29224663/obstruction-of-the-biliary-and-urinary-system
#18
William O'Connell, Jay Shah, Jason Mitchell, J David Prologo, Louis Martin, Michael J Miller, Jonathan G Martin
Biliary and urinary obstructions can be managed endoscopically or cystoscopically, surgically or by percutansous intervention or drainage. If the obtructed system is infected, emergent decompression is needed. Early recognition and treatment is paramount in both conditions. Acute cholangitis can present many different ways, from mild symptoms to fulminant sepsis. It is usually a result of ascending bacterial colonization and biliary obstruction resulting in bacterial overgrowth. Therefore, those patients with recent biliary instrumentation or previous biliary modification are at higher risk...
December 2017: Techniques in Vascular and Interventional Radiology
https://www.readbyqxmd.com/read/29218897/codon-bias-among-synonymous-rare-variants-is-associated-with-alzheimer-s-disease-imaging-biomarker
#19
Jason E Miller, Manu K Shivakumar, Shannon L Risacher, Andrew J Saykin, Seunggeun Lee, Kwangsik Nho, Dokyoon Kim
Alzheimer's disease (AD) is a neurodegenerative disorder with few biomarkers even though it impacts a relatively large portion of the population and is predicted to affect significantly more individuals in the future. Neuroimaging has been used in concert with genetic information to improve our understanding in relation to how AD arises and how it can be potentially diagnosed. Additionally, evidence suggests synonymous variants can have a functional impact on gene regulatory mechanisms, including those related to AD...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29212525/establishing-and-characterizing-patient-derived-xenografts-using-pre-chemotherapy-percutaneous-biopsy-and-post-chemotherapy-surgical-samples-from-a-prospective-neoadjuvant-breast-cancer-study
#20
Jia Yu, Bo Qin, Ann M Moyer, Jason P Sinnwell, Kevin J Thompson, John A Copland, Laura A Marlow, James L Miller, Ping Yin, Bowen Gao, Katherine Minter-Dykhouse, Xiaojia Tang, Sarah A McLaughlin, Alvaro Moreno-Aspitia, Anthony Schweitzer, Yan Lu, Jason Hubbard, Donald W Northfelt, Richard J Gray, Katie Hunt, Amy L Conners, Vera J Suman, Krishna R Kalari, James N Ingle, Zhenkun Lou, Daniel W Visscher, Richard Weinshilboum, Judy C Boughey, Matthew P Goetz, Liewei Wang
BACKGROUND: Patient-derived xenografts (PDXs) are increasingly used in cancer research as a tool to inform cancer biology and drug response. Most available breast cancer PDXs have been generated in the metastatic setting. However, in the setting of operable breast cancer, PDX models both sensitive and resistant to chemotherapy are needed for drug development and prospective data are lacking regarding the clinical and molecular characteristics associated with PDX take rate in this setting...
December 6, 2017: Breast Cancer Research: BCR
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