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David c miller

Pearlie P Chong, David van Duin, Ananta Bangdiwala, Anastasia Ivanova, William C Miller, David J Weber, Peter H Gilligan, Thomas C Shea
PURPOSE: Case reports of treatment failure with standard-dose daptomycin (6 mg/kg) have recently surfaced in vancomycin-resistant Enterococcus (VRE) bloodstream infection (BSI) episodes with daptomycin MICs of 3 to 4 mg/L. The clinical implications of daptomycin MICs of 3 to 4 mg/L in VRE BSIs have not been elucidated. METHODS: We performed a single institutional retrospective analysis of adult stem cell transplant recipients and patients with hematologic malignancies diagnosed with VRE BSI from 2006 to 2014 and compared outcomes between those with daptomycin MICs of 3 to 4 mg/L those with 2 mg/L, as determined by Etest...
October 19, 2016: Clinical Therapeutics
Steven Z Josefowicz, Miho Shimada, Anja Armache, Charles H Li, Rand M Miller, Shu Lin, Aerin Yang, Brian D Dill, Henrik Molina, Hee-Sung Park, Benjamin A Garcia, Jack Taunton, Robert G Roeder, C David Allis
The inflammatory response requires coordinated activation of both transcription factors and chromatin to induce transcription for defense against pathogens and environmental insults. We sought to elucidate the connections between inflammatory signaling pathways and chromatin through genomic footprinting of kinase activity and unbiased identification of prominent histone phosphorylation events. We identified H3 serine 28 phosphorylation (H3S28ph) as the principal stimulation-dependent histone modification and observed its enrichment at induced genes in mouse macrophages stimulated with bacterial lipopolysaccharide...
October 20, 2016: Molecular Cell
Robert F Riley, Chadwick D Miller, Gregory B Russell, Erin N Harper, Brian C Hiestand, James W Hoekstra, Cedric W Lefebvre, Bret A Nicks, David M Cline, Kim L Askew, Simon A Mahler
INTRODUCTION: The HEART Pathway is a diagnostic protocol designed to identify low-risk patients presenting to the emergency department with chest pain that are safe for early discharge. This protocol has been shown to significantly decrease health care resource utilization compared with usual care. However, the impact of the HEART Pathway on the cost of care has yet to be reported. METHODS AND RESULTS: We performed a cost analysis of patients enrolled in the HEART Pathway trial, which randomized participants to either usual care or the HEART Pathway protocol...
October 5, 2016: American Journal of Emergency Medicine
Vivek Subbiah, Oliver Holmes, Kyle Gowen, Daniel Spritz, Behrang Amini, Wei-Lien Wang, Alexa B Schrock, Funda Meric-Bernstam, Ralph Zinner, Sarina Piha-Paul, Maria Zarzour, Julia A Elvin, Rachel L Erlich, David L Stockman, Jo-Anne Vergilio, James H Suh, Philip J Stephens, Vincent Miller, Jeffrey S Ross, Siraj M Ali
Malignant gastrointestinal neuroectodermal tumor (GNET) is an aggressive rare tumor, primarily occurring in young adults with frequent local-regional metastases and recurrence after local control. The tumor is characterized by the presence of EWSR1-ATF1 or EWSR1-CREB1 and immunohistochemical positivity for S-100 protein without melanocytic marker positivity. Due to poor responses to standard sarcoma regimens, GNET has a poor prognosis, and development of effective systemic therapy is desperately needed to treat these patients...
October 21, 2016: Oncology
Cristina Matthewman, Tyne W Miller-Fleming, David M Miller, Laura Bianchi
Hyperactivated DEG/ENaC channels cause neuronal death mediated by intracellular Ca(2+) overload. Mammalian ASIC1a and C. elegans MEC-4(d) neurotoxic channels conduct both Na(+) and Ca(2+) raising the possibility that direct Ca(2+) influx through these channels contributes to the intracellular Ca(2+) overload. However, we showed that homologous C. elegans DEG/ENaC channel UNC-8(d) is not Ca(2+) permeable yet it is neurotoxic, suggesting that Na(+) influx is sufficient to induce cell death. Interestingly, UNC-8(d) shows small currents due to extracellular Ca(2+) block in the Xenopus oocytes expression system...
October 19, 2016: American Journal of Physiology. Cell Physiology
Sigrid Bairdain, David Zurakowski, Sara O Vargas, Nicole Stenquist, Molly McDonald, Meghan C Towne, David T Miller, Russell W Jennings, David B Kantor, Pankaj B Agrawal
BACKGROUND: Long-gap esophageal atresia (LGEA) may have clinical and syndromic presentations different from those of esophageal atresia (EA) that affects shorter segments of the esophagus (non-LGEA). This may suggest unique underlying developmental mechanisms. OBJECTIVES: We sought to characterize clinical differences between LGEA and non-LGEA by carefully phenotyping a cohort of EA patients, and furthermore to assess molecular genetic findings in a subset of them...
October 19, 2016: Neonatology
Randall J Olson, Rosa Braga-Mele, Sherleen Huang Chen, Kevin M Miller, Roberto Pineda, James P Tweeten, David C Musch
No abstract text is available yet for this article.
October 13, 2016: Ophthalmology
Joey B Tanney, David R McMullin, Blake D Green, J David Miller, Keith A Seifert
The genus Diaporthe comprises close to 800 species, with around 2000 names attributed to it and its asexual morphs previously recognized in Phomopsis. Diaporthe species are common plant associates, including saprotrophs, pathogens, and endophytes affiliated with a diverse range of hosts worldwide. In this study, an unknown Diaporthe sp. was frequently isolated as an endophyte from healthy Picea mariana and Picea rubens needles in the Acadian forest of Eastern Canada. Morphological observations and the application of the genealogical concordance phylogenetic species recognition concept using four unlinked loci (internal transcribed spacer (ITS), DNA-lyase (Apn2), translation elongation factor 1-α (EF1-α), and beta-tubulin (TUB)) support the distinctiveness of this species, described here as Diaporthe maritima...
November 2016: Fungal Biology
Marios C Yiannakas, Francesco Grussu, Polymnia Louka, Ferran Prados, Rebecca S Samson, Marco Battiston, Daniel R Altmann, Sebastien Ourselin, David H Miller, Claudia A M Gandini Wheeler-Kingshott
Diffusion tensor imaging (DTI) has recently started to be adopted into clinical investigations of spinal cord (SC) diseases. However, DTI applications to the lower SC are limited due to a number of technical challenges, related mainly to the even smaller size of the SC structure at this level, its position relative to the receiver coil elements and the effects of motion during data acquisition. Developing methods to overcome these problems would offer new means to gain further insights into microstructural changes of neurological conditions involving the lower SC, and in turn could help explain symptoms such as bladder and sexual dysfunction...
2016: PloS One
Gilbert J Choi, Qilei Zhu, David C Miller, Carol J Gu, Robert R Knowles
Despite advances in hydrogen atom transfer (HAT) catalysis, there are currently no molecular HAT catalysts that are capable of homolysing the strong nitrogen-hydrogen (N-H) bonds of N-alkyl amides. The motivation to develop amide homolysis protocols stems from the utility of the resultant amidyl radicals, which are involved in various synthetically useful transformations, including olefin amination and directed carbon-hydrogen (C-H) bond functionalization. In the latter process-a subset of the classical Hofmann-Löffler-Freytag reaction-amidyl radicals remove hydrogen atoms from unactivated aliphatic C-H bonds...
October 12, 2016: Nature
Monica Vaccari, Shari N Gordon, Slim Fourati, Luca Schifanella, Namal P M Liyanage, Mark Cameron, Brandon F Keele, Xiaoying Shen, Georgia D Tomaras, Erik Billings, Mangala Rao, Amy W Chung, Karen G Dowell, Chris Bailey-Kellogg, Eric P Brown, Margaret E Ackerman, Diego A Vargas-Inchaustegui, Stephen Whitney, Melvin N Doster, Nicolo Binello, Poonam Pegu, David C Montefiori, Kathryn Foulds, David S Quinn, Mitzi Donaldson, Frank Liang, Karin Loré, Mario Roederer, Richard A Koup, Adrian McDermott, Zhong-Min Ma, Christopher J Miller, Tran B Phan, Donald N Forthal, Matthew Blackburn, Francesca Caccuri, Massimiliano Bissa, Guido Ferrari, Vaniambadi Kalyanaraman, Maria G Ferrari, DeVon Thompson, Marjorie Robert-Guroff, Silvia Ratto-Kim, Jerome H Kim, Nelson L Michael, Sanjay Phogat, Susan W Barnett, Jim Tartaglia, David Venzon, Donald M Stablein, Galit Alter, Rafick-Pierre Sekaly, Genoveffa Franchini
No abstract text is available yet for this article.
October 6, 2016: Nature Medicine
David C Adams, Lida P Hariri, Alyssa J Miller, Yan Wang, Josalyn L Cho, Martin Villiger, Jasmin A Holz, Margit V Szabari, Daniel L Hamilos, R Scott Harris, Jason W Griffith, Brett E Bouma, Andrew D Luster, Benjamin D Medoff, Melissa J Suter
The inability to visualize airway smooth muscle (ASM) cells in vivo is a major obstacle in understanding their role in normal physiology and diseases. At present, there is no imaging modality available to assess ASM in vivo. Confocal endomicroscopy lacks the penetration depth and field of view, and conventional optical coherence tomography (OCT) does not have sufficient contrast to differentiate ASM from surrounding tissues. We have developed a birefringence microscopy platform that leverages the micro-organization of tissue to add further dimension to traditional OCT...
October 5, 2016: Science Translational Medicine
Maxime Bertoux, Marie Sarazin, Florence Pasquier, Michel Bottlaender, Leonardo Cruz de Souza, Eneida Mioshi, Michael Hornberger, Kamalini G Ranasinghe, Katherine P Rankin, Iryna V Lobach, Joel H Kramer, Virginia E Sturm, Brianne M Bettcher, Katherine Possin, S Christine You, Amanda K Lamarre, Tal Shany-Ur, Melanie L Stephens, David C Perry, Suzee E Lee, Zachary A Miller, Maria L Gorno-Tempini, Howard J Rosen, Adam Boxer, William W Seeley, Gil D Rabinovici, Keith A Vossel, Bruce L Miller
No abstract text is available yet for this article.
October 4, 2016: Neurology
Alexandra B Byrne, Rebecca D McWhirter, Yuichi Sekine, Stephen M Strittmatter, David M Miller, Marc Hammarlund
The ability of a neuron to regenerate its axon after injury depends in part on its intrinsic regenerative potential. Here, we identify novel intrinsic regulators of axon regeneration: poly(ADP-ribose) glycohodrolases (PARGs) and poly(ADP-ribose) polymerases (PARPs). PARGs, which remove poly(ADP-ribose) from proteins, act in injured C. elegans GABA motor neurons to enhance axon regeneration. PARG expression is regulated by DLK signaling, and PARGs mediate DLK function in enhancing axon regeneration. Conversely, PARPs, which add poly(ADP-ribose) to proteins, inhibit axon regeneration of both C...
October 4, 2016: ELife
David J Gagnon, Gabriel V Fontaine, Kathryn E Smith, Richard R Riker, Russell R Miller, Patricia A Lerwick, F L Lucas, John T Dziodzio, Kristen C Sihler, Gilles L Fraser
PURPOSE: The purpose was to describe the use of valproate therapy for agitation in critically ill patients, examine its safety, and describe its relationship with agitation and delirium. MATERIALS AND METHODS: This retrospective cohort study evaluated critically ill adults treated with valproate for agitation from December 2012 through February 2015. Information on valproate prescribing practices and safety was collected. Incidence of agitation, delirium, and concomitant psychoactive medication use was compared between valproate day 1 and valproate day 3...
September 11, 2016: Journal of Critical Care
Ruben A Mesa, Carole B Miller, Maureen Thyne, James Mangan, Sara Goldberger, Salman Fazal, Xiaomei Ma, Wendy Wilson, Dilan C Paranagama, David G Dubinski, Ahmad Naim, Shreekant Parasuraman, John Boyle, John O Mascarenhas
BACKGROUND: This analysis of the myeloproliferative neoplasm (MPN) Landmark survey evaluated gaps between patient perceptions of their disease management and physician self-reported practices. METHODS: The survey included 813 patient respondents who had MPNs (myelofibrosis [MF], polycythemia vera [PV], or essential thrombocythemia [ET]) and 457 hematologist/oncologist respondents who treated patients with these conditions. RESULTS: Greater proportions of physician respondents reported using prognostic risk classifications (MF, 83%; PV, 59%; ET, 77%) compared with patient recollections (MF, 54%; PV, 17%; ET, 31%)...
September 30, 2016: Cancer
Corrado Cancedda, Sheila M Davis, Kerry L Dierberg, Jonathan Lascher, J Daniel Kelly, Mohammed Bailor Barrie, Alimamy Philip Koroma, Peter George, Adikali Alpha Kamara, Ronald Marsh, Manso S Sumbuya, Cameron T Nutt, Kirstin W Scott, Edgar Thomas, Katherine Bollbach, Andrew Sesay, Ahmidu Barrie, Elizabeth Barrera, Kathryn Barron, John Welch, Nahid Bhadelia, Raphael G Frankfurter, Ophelia M Dahl, Sarthak Das, Rebecca E Rollins, Bryan Eustis, Amanda Schwartz, Piero Pertile, Ilias Pavlopoulos, Allan Mayfield, Regan H Marsh, Yusupha Dibba, Danielle Kloepper, Andrew Hall, Karin Huster, Michael Grady, Kimberly Spray, David A Walton, Fodei Daboh, Cora Nally, Sahr James, Gabriel S Warren, Joyce Chang, Michael Drasher, Gina Lamin, Sherry Bangura, Ann C Miller, Annie P Michaelis, Ryan McBain, M Jana Broadhurst, Megan Murray, Eugene T Richardson, Ted Philip, Gary L Gottlieb, Joia S Mukherjee, Paul E Farmer
An epidemic of Ebola virus disease (EVD) beginning in 2013 has claimed an estimated 11 310 lives in West Africa. As the EVD epidemic subsides, it is important for all who participated in the emergency Ebola response to reflect on strengths and weaknesses of the response. Such reflections should take into account perspectives not usually included in peer-reviewed publications and after-action reports, including those from the public sector, nongovernmental organizations (NGOs), survivors of Ebola, and Ebola-affected households and communities...
October 15, 2016: Journal of Infectious Diseases
Scott R Hawken, Naveen K Krishnan, Sapan N Ambani, Jeffrey S Montgomery, Elaine M Caoili, James H Ellis, Lakshmi P Kunju, Khaled S Hafez, David C Miller, Alexander Kutikov, Ganesh S Palapattu, Alon Z Weizer, James Stuart Wolf, Todd M Morgan
OBJECTIVE: To understand potential harms associated with delaying resection of small renal masses (SRMs) in patients ultimately treated, and whether these patients have factors associated with adverse pathology. METHODS: Patients with SRMs (≤4cm) who underwent surgical resection at our institution (2009-2015) were classified as undergoing early resection or initial surveillance with delayed resection (defined by a time from presentation to intervention of at least 6mo)...
September 26, 2016: Urologic Oncology
Chad Ellimoottil, Andrew M Ryan, Hechuan Hou, James M Dupree, Brian Hallstrom, David C Miller
Importance: Under the Comprehensive Care for Joint Replacement (CJR) model, hospitals are held accountable for nearly all Medicare payments that occur during the initial hospitalization until 90 days after hospital discharge (ie, the episode of care). It is not known whether unrelated expenditures resulting from this "broad" definition of an episode of care will affect participating hospitals' average episode-of-care payments. Objective: To compare the CJR program's broad definition of an episode of care with a clinically narrow definition of an episode of care...
September 28, 2016: JAMA Surgery
Todd E Katzner, David M Nelson, Melissa A Braham, Jacqueline M Doyle, Nadia B Fernandez, Adam E Duerr, Peter H Bloom, Matthew C Fitzpatrick, Tricia A Miller, Renee C E Culver, Loan Braswell, J Andrew DeWoody
Renewable energy production is expanding rapidly despite mostly unknown environmental effects on wildlife and habitats. We used genetic and stable isotope data collected from Golden Eagles (Aquila chrysaetos) killed at the Altamont Pass Wind Resource Area (APWRA) in California in demographic models to test hypotheses about the geographic extent and demographic consequences of fatalities caused by renewable energy facilities. Geospatial analyses of δ(2) H values obtained from feathers showed that ≥25% of these APWRA-killed eagles were recent immigrants to the population, most from long distances away (>100 km)...
September 27, 2016: Conservation Biology: the Journal of the Society for Conservation Biology
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