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https://www.readbyqxmd.com/read/28821584/transcriptome-analysis-of-mycobacteria-specific-cd4-t-cells-identified-by-activation-induced-expression-of-cd154
#1
Shajo Kunnath-Velayudhan, Michael F Goldberg, Neeraj K Saini, Christopher T Johndrow, Tony W Ng, Alison J Johnson, Jiayong Xu, John Chan, William R Jacobs, Steven A Porcelli
Analysis of Ag-specific CD4(+) T cells in mycobacterial infections at the transcriptome level is informative but technically challenging. Although several methods exist for identifying Ag-specific T cells, including intracellular cytokine staining, cell surface cytokine-capture assays, and staining with peptide:MHC class II multimers, all of these have significant technical constraints that limit their usefulness. Measurement of activation-induced expression of CD154 has been reported to detect live Ag-specific CD4(+) T cells, but this approach remains underexplored and, to our knowledge, has not previously been applied in mycobacteria-infected animals...
August 18, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28810995/chondrocyte-viability-after-a-simulated-blast-exposure
#2
K Aaron Shaw, Peter C Johnson, David Williams, Steven D Zumbrun, Richard Topolski, Craig D Cameron
OBJECTIVES: The effects of blast exposure have gained increasing interest in the military medical community with their continued occurrence on the battlefield. The impact of the direct and indirect energy imparted from blasts to hollow viscera, as well as closed head injuries, have been well studied. However, the injury to articular cartilage has not been investigated, despite previous correlations regarding the development of osteoarthritis. The purpose of this study was to assess the degree of injury to articular chondrocytes after exposure to a simulated blast overpressure wave...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810705/flowers-as-a-reservoir-of-yeast-diversity-description-of-wickerhamiella-nectarea-f-a-sp-nov-and-wickerhamiella-natalensis-f-a-sp-nov-from-south-african-flowers-and-pollinators-and-transfer-of-related-candida-species-to-the-genus-wickerhamiella-as-new-combinations
#3
Clara de Vega, Rafael G Albaladejo, Beatriz Guzmán, Sandy-Lynn Steenhuisen, Steven D Johnson, Carlos M Herrera, Marc-André Lachance
Flowers offer favourable microenvironments for yeast growth, and are increasingly recognised as a rich source of novel yeast species. Independent surveys of yeasts associated with flowers and pollinators in South Africa led to the discovery of 38 strains of two new species. Physiological profiles and analysis of the internal transcribed spacer and the D1/D2 domains of the large subunit rRNA gene showed that they represent two novel species that belong to the Wickerhamiella clade. We describe the species as Wickerhamiella nectarea f...
August 1, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28803781/myc-regulates-chromatin-decompaction-and-nuclear-architecture-during-b-cell-activation
#4
Kyong-Rim Kieffer-Kwon, Keisuke Nimura, Suhas S P Rao, Jianliang Xu, Seolkyoung Jung, Aleksandra Pekowska, Marei Dose, Evan Stevens, Ewy Mathe, Peng Dong, Su-Chen Huang, Maria Aurelia Ricci, Laura Baranello, Ying Zheng, Francesco Tomassoni Ardori, Wolfgang Resch, Diana Stavreva, Steevenson Nelson, Michael McAndrew, Adriel Casellas, Elizabeth Finn, Charles Gregory, Brian Glenn St Hilaire, Steven M Johnson, Wendy Dubois, Maria Pia Cosma, Eric Batchelor, David Levens, Robert D Phair, Tom Misteli, Lino Tessarollo, Gordon Hager, Melike Lakadamyali, Zhe Liu, Monique Floer, Hari Shroff, Erez Lieberman Aiden, Rafael Casellas
50 years ago, Vincent Allfrey and colleagues discovered that lymphocyte activation triggers massive acetylation of chromatin. However, the molecular mechanisms driving epigenetic accessibility are still unknown. We here show that stimulated lymphocytes decondense chromatin by three differentially regulated steps. First, chromatin is repositioned away from the nuclear periphery in response to global acetylation. Second, histone nanodomain clusters decompact into mononucleosome fibers through a mechanism that requires Myc and continual energy input...
August 17, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28803710/intrathecal-2-hydroxypropyl-%C3%AE-cyclodextrin-decreases-neurological-disease-progression-in-niemann-pick-disease-type-c1-a-non-randomised-open-label-phase-1-2-trial
#5
Daniel S Ory, Elizabeth A Ottinger, Nicole Yanjanin Farhat, Kelly A King, Xuntian Jiang, Lisa Weissfeld, Elizabeth Berry-Kravis, Cristin D Davidson, Simona Bianconi, Lee Ann Keener, Ravichandran Rao, Ariane Soldatos, Rohini Sidhu, Kimberly A Walters, Xin Xu, Audrey Thurm, Beth Solomon, William J Pavan, Bernardus N Machielse, Mark Kao, Steven A Silber, John C McKew, Carmen C Brewer, Charles H Vite, Steven U Walkley, Christopher P Austin, Forbes D Porter
BACKGROUND: Niemann-Pick disease, type C1 (NPC1) is a lysosomal storage disorder characterised by progressive neurodegeneration. In preclinical testing, 2-hydroxypropyl-β-cyclodextrins (HPβCD) significantly delayed cerebellar Purkinje cell loss, slowed progression of neurological manifestations, and increased lifespan in mouse and cat models of NPC1. The aim of this study was to assess the safety and efficacy of lumbar intrathecal HPβCD. METHODS: In this open-label, dose-escalation phase 1-2a study, we gave monthly intrathecal HPβCD to participants with NPC1 with neurological manifestation at the National Institutes of Health (NIH), Bethesda, MD, USA...
August 10, 2017: Lancet
https://www.readbyqxmd.com/read/28798047/mtor-regulates-metabolic-adaptation-of-apcs-in-the-lung-and-controls-the-outcome-of-allergic-inflammation
#6
Charles Sinclair, Gayathri Bommakanti, Luiz Gardinassi, Jens Loebbermann, Matthew Joseph Johnson, Paul Hakimpour, Thomas Hagan, Lydia Benitez, Andrei Todor, Deepa Machiah, Timothy Oriss, Anuradha Ray, Steven Bosinger, Rajesh Ravindran, Shuzhao Li, Bali Pulendran
Antigen-presenting cells (APCs) occupy diverse anatomical tissues, but their tissue-restricted homeostasis remains poorly understood. Here, working in mouse models of inflammation, we found that mTOR-dependent metabolic adaptation was required at discrete locations. mTOR was dispensable for DC homeostasis in secondary lymphoid tissues but necessary to regulate cellular metabolism and accumulation of CD103(+) DCs and alveolar macrophages in lung. Moreover, while numbers of mTOR-deficient lung CD11b(+) DCs were not changed, they were metabolically reprogrammed to skew allergic inflammation from eosinophilic Th2 to neutrophilic Th17 polarity...
August 10, 2017: Science
https://www.readbyqxmd.com/read/28797570/genetic-variants-related-to-longer-telomere-length-are-associated-with-increased-risk-of-renal-cell-carcinoma
#7
Mitchell J Machiela, Jonathan N Hofmann, Robert Carreras-Torres, Kevin M Brown, Mattias Johansson, Zhaoming Wang, Matthieu Foll, Peng Li, Nathaniel Rothman, Sharon A Savage, Valerie Gaborieau, James D McKay, Yuanqing Ye, Marc Henrion, Fiona Bruinsma, Susan Jordan, Gianluca Severi, Kristian Hveem, Lars J Vatten, Tony Fletcher, Kvetoslava Koppova, Susanna C Larsson, Alicja Wolk, Rosamonde E Banks, Peter J Selby, Douglas F Easton, Paul Pharoah, Gabriella Andreotti, Laura E Beane Freeman, Stella Koutros, Demetrius Albanes, Satu Mannisto, Stephanie Weinstein, Peter E Clark, Todd E Edwards, Loren Lipworth, Susan M Gapstur, Victoria L Stevens, Hallie Carol, Matthew L Freedman, Mark M Pomerantz, Eunyoung Cho, Peter Kraft, Mark A Preston, Kathryn M Wilson, J Michael Gaziano, Howard S Sesso, Amanda Black, Neal D Freedman, Wen-Yi Huang, John G Anema, Richard J Kahnoski, Brian R Lane, Sabrina L Noyes, David Petillo, Leandro M Colli, Joshua N Sampson, Celine Besse, Helene Blanche, Anne Boland, Laurie Burdette, Egor Prokhortchouk, Konstantin G Skryabin, Meredith Yeager, Mirjana Mijuskovic, Miodrag Ognjanovic, Lenka Foretova, Ivana Holcatova, Vladimir Janout, Dana Mates, Anush Mukeriya, Stefan Rascu, David Zaridze, Vladimir Bencko, Cezary Cybulski, Eleonora Fabianova, Viorel Jinga, Jolanta Lissowska, Jan Lubinski, Marie Navratilova, Peter Rudnai, Neonila Szeszenia-Dabrowska, Simone Benhamou, Geraldine Cancel-Tassin, Olivier Cussenot, H Bas Bueno-de-Mesquita, Federico Canzian, Eric J Duell, Börje Ljungberg, Raviprakash T Sitaram, Ulrike Peters, Emily White, Garnet L Anderson, Lisa Johnson, Juhua Luo, Julie Buring, I-Min Lee, Wong-Ho Chow, Lee E Moore, Christopher Wood, Timothy Eisen, James Larkin, Toni K Choueiri, G Mark Lathrop, Bin Tean Teh, Jean-Francois Deleuze, Xifeng Wu, Richard S Houlston, Paul Brennan, Stephen J Chanock, Ghislaine Scelo, Mark P Purdue
BACKGROUND: Relative telomere length in peripheral blood leukocytes has been evaluated as a potential biomarker for renal cell carcinoma (RCC) risk in several studies, with conflicting findings. OBJECTIVE: We performed an analysis of genetic variants associated with leukocyte telomere length to assess the relationship between telomere length and RCC risk using Mendelian randomization, an approach unaffected by biases from temporal variability and reverse causation that might have affected earlier investigations...
August 7, 2017: European Urology
https://www.readbyqxmd.com/read/28797467/outcomes-of-oral-cavity-cancer-patients-treated-with-surgery-followed-by-postoperative-intensity-modulated-radiation-therapy
#8
Sean R Quinlan-Davidson, Abdallah S R Mohamed, Jeffrey N Myers, Gary B Gunn, Faye M Johnson, Heath Skinner, Beth M Beadle, Ann M Gillenwater, Jack Phan, Steven J Frank, William N William, Andrew J Wong, Stephen Y Lai, Clifton D Fuller, William H Morrison, David I Rosenthal, Adam S Garden
OBJECTIVES: Although treatment paradigms have not changed significantly, radiotherapy, surgery, and imaging techniques have improved, leading us to investigate oncologic and survival outcomes for oral cavity squamous cell cancer (OCSCC) patients treated with surgery followed by postoperative IMRT. MATERIAL AND METHODS: Records of patients with pathological diagnosis of OCSCC treated between 2000 and 2012 were retrospectively reviewed. Patients' demographic, disease, and treatment criteria were extracted...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28795424/going-with-the-flow-an-aid-in-detecting-and-differentiating-bronchopulmonary-sequestrations-and-hybrid-lesions
#9
Edward R Oliver, Suzanne E DeBari, Mariann M Giannone, Jennifer E Pogoriler, Ann M Johnson, Steven C Horii, Juliana S Gebb, Lori J Howell, N Scott Adzick, Beverly G Coleman
OBJECTIVES: To assess the ability of prenatal ultrasound (US) in identifying systemic feeding arteries in bronchopulmonary sequestrations and hybrid lesions and report the ability of US in classifying bronchopulmonary sequestrations as intralobar or extralobar. METHODS: Institutional Review Board-approved radiology and clinical database searches from 2008 to 2015 were performed for prenatal lung lesions with final diagnoses of bronchopulmonary sequestrations or hybrid lesions...
August 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28789734/new-paths-to-professional-nursing-using-encouragement-to-prepare-a-minority-workforce-to-enter-the-nursing-profession
#10
Elisheba Haqq-Stevens, Kathleen E Zavotsky, Sarah Kelly, Christopher Duffy, Claudia Pagani, Myrna Young, Lori Colineri
The current professional nursing workforce in the United States is predominantly White and female, even though minorities compose 33% of the national population (Travers, Smaldone, & Cohn, 2015). Minority patients are more effectively cared for when their particular cultural milieu is taken into consideration as part of their health care plan (Sullivan, 2004). According to the Agency for Healthcare Research and Quality (AHRQ), health care quality remains suboptimal for diverse populations in the United States because some individuals do not receive quality care or do not believe their values are honored or respected (AHRQ, 2016)...
August 1, 2017: Creative Nursing
https://www.readbyqxmd.com/read/28776375/limits-to-the-optical-response-of-graphene-and-two-dimensional-materials
#11
Owen D Miller, Ognjen Ilic, Thomas Christensen, M T Homer Reid, Harry A Atwater, John D Joannopoulos, Marin Soljačić, Steven G Johnson
Two-dimensional (2D) materials provide a platform for strong light-matter interactions, creating wide-ranging design opportunities via new-material discoveries and new methods for geometrical structuring. We derive general upper bounds to the strength of such light-matter interactions, given only the optical conductivity of the material, including spatial nonlocality, and otherwise independent of shape and configuration. Our material figure-of-merit shows that highly doped graphene is an optimal material at infrared frequencies, whereas single-atomic-layer silver is optimal in the visible...
August 8, 2017: Nano Letters
https://www.readbyqxmd.com/read/28770884/outcome-of-application-of-amniotic-membrane-graft-in-ocular-surface-disorders
#12
Nargis Nizam Ashraf, Muhammad Idrees Adhi
OBJECTIVE: To determine the outcome of application of amniotic graft in ocular surface disorders. METHODS: This cross-sectional study was conducted at Dow University of Health Sciences, Karachi, from January 2010 to December 2012, and comprised patients with ocular surface disorders. Patients' presenting symptoms and signs were recorded. Previously harvested and frozen amniotic graft was applied in different types of ocular surface disorders, such as corneal ulcers, pterygium, keratomalacia, Steven-Johnson syndrome, etc...
July 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28769568/incidence-causative-drugs-and-economic-consequences-of-drug-induced-sjs-ten-and-sjs-ten-overlap-and-potential-drug-drug-interactions-during-treatment-a-retrospective-analysis-at-an-indonesian-referral-hospital
#13
Rizky Abdulah, Tazkia F Suwandiman, Nadhira Handayani, Dika P Destiani, Auliya A Suwantika, Melisa I Barliana, Keri Lestari
BACKGROUND: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are acute life-threatening adverse drug reactions (ADRs) that are commonly caused by medications. Apart from their contribution to morbidity and mortality, these diseases may also present substantial consequences on health care resources. In this study, we aimed to identify the incidence, causative drugs, and economic consequences of these serious ADRs and potential drug-drug interactions (DDIs) during treatment...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28766064/a-severe-ranavirus-outbreak-in-captive-wild-caught-box-turtles
#14
Steven J A Kimble, April J Johnson, Rod N Williams, Jason T Hoverman
A Ranavirus outbreak in a captive population of wild-caught individuals was monitored using clinical evaluations and real-time PCR in 317 wild box turtles held in captivity during translocation. During the 2-year study period, the population experienced 71.6% mortality, suggesting that ranaviruses can rapidly attenuate populations. Wide variation in infection rate (7-94% per sampling period) was observed, which may have been driven by clearing and reinfection, adaptive immunity, or imperfect detection using noninvasive samples...
August 1, 2017: EcoHealth
https://www.readbyqxmd.com/read/28763334/pseudomelanomas-following-stevens-johnson-syndrome
#15
Nima Mesbah Ardakani, Shevya M Tiwari, Benjamin A Wood
In this report, we present a novel case of pseudomelanoma, similar to that seen in a recurrent/traumatized nevus, in pre-existing nevi in a 36-year-old man a few months after recovering from an episode of severe Stevens-Johnson syndrome. The mechanism responsible for the atypical transformation of these nevi is likely the release of cytokines and growth factors in the microenvironment during the repair/regeneration process. It is important to be aware of this phenomenon, and specific inquiry about potential recent blistering skin disorder in addition to the other causes of trauma should be made when dealing with cases of pseudomelanoma to avoid misdiagnosis...
July 26, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28763137/cognitive-function-and-patient-reported-memory-problems-after-radiotherapy-for-cancers-at-the-skull-base-a-cross-sectional-survivorship-study-using-the-telephone-interview-for-cognitive-status-and-the-md-anderson-symptom-inventory-head-and-neck-module
#16
Chase C Hansen, Joshua B Smith, Abdallah S R Mohamed, Collin F Mulcahy, Jeffrey S Wefel, Katherine A Hutcheson, Kelsey Chrane, Jack Phan, Steven J Frank, Adam S Garden, Blaine D Smith, Hillary Eichelberger, Carthal Anderson, Colton McCoy, Marina Horiates, Conner Patrick, Sarah Floris, Chloe French, Beth M Beadle, William H Morrison, Shirley Y Su, Carol M Lewis, Michael E Kupferman, Jason M Johnson, Heath D Skinner, Stephen Y Lai, Ehab Y Hanna, David I Rosenthal, Clifton D Fuller, G Brandon Gunn
BACKGROUND: Using patient-reported and objective assessment tools, we sought to quantify cognitive symptoms and objective cognitive dysfunction in patients irradiated for skull base cancer. METHODS: Participants were assessed using the Telephone Interview for Cognitive Status (TICS) and the MD Anderson Symptom Inventory-Head and Neck module (MDASI-HN), with subsequent analysis. RESULTS: Of the 122 participants analyzed, the majority (63%) had no frank detectable cognitive impairment by TICS, with frank impairment in 6%...
August 1, 2017: Head & Neck
https://www.readbyqxmd.com/read/28762893/overlapping-microrna-expression-in-saliva-and-cerebrospinal-fluid-accurately-identifies-pediatric-traumatic-brain-injury
#17
Steven Daniel Hicks, Jeremiah Johnson, Molly C Carney, Harry Bramley, Robert P Olympia, Andrea C Loeffert, Neal J Thomas
Objectives To assess the accuracy and physiologic relevance of circulating microRNA (miRNA) as a biomarker of pediatric concussion, we compared changes in salivary miRNA and cerebrospinal fluid (CSF) miRNA following childhood traumatic brain injury (TBI). Study Design A case-cohort design was used to compare longitudinal miRNA concentrations in CSF of seven children with severe TBI against three controls without TBI. The miRNAs "altered" in CSF were interrogated in saliva of 60 children with mild TBI and compared with 18 age- and gender- matched controls...
August 1, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28758256/hospitalization-and-outcomes-attributed-to-epidermal-necrolysis-in-united-states-predictors-of-mortality
#18
Veerajalandhar Allareddy, Sankeerth Rampa, Veerasathpurush Allareddy
Acute life-threatening mucocutaneous reactions characterized by extensive necrosis and detachment of the epidermis(epidermal necrolysis,EN) includes the spectrum of Stevens-Johnson syndrome (SJS, <10% body surface area), Toxic epidermal necrolysis (TEN, >20% BSA) and the SJS-TEN overlap(10-20%BSA). Prior older studies have revealed that the incidence of these rare conditions was estimated to be 1 to 6 cases per million person-years for SJS and 0.4 to 1.2 cases per million person-years for TEN. Current, large population based hospitalization outcomes attributed to EN in United States are lacking...
July 31, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28749897/role-of-scleral-contact-lenses-in-management-of-coexisting-keratoconus-and-stevens-johnson-syndrome
#19
Varsha M Rathi, Mukesh Taneja, Srikanth Dumpati, Preeji S Mandathara, Virender S Sangwan
PURPOSE: To report the rare coexistence of keratoconus and Stevens-Johnson syndrome (SJS) managed with scleral contact lenses (ScCLs). METHODS: This is a retrospective case series. Five patients (9 eyes) who had coexisting SJS and corneal ectasia were identified from the database during the 2-year period. Diagnosis of SJS was based on a positive history of drug reactions, signs of ocular surface disease, and the presence of keratinization of lid margins. Keratoconus was diagnosed by slit-lamp biomicroscopy...
July 26, 2017: Cornea
https://www.readbyqxmd.com/read/28745509/contact-angle-and-adhesion-dynamics-and-hysteresis-on-molecularly-smooth-chemically-homogeneous-surfaces
#20
Szu-Ying Chen, Yair Kaufman, Alex M Schrader, Dongjin Seo, Dong Woog Lee, Steven H Page, Peter H Koenig, Sandra Isaacs, Yonas Gizaw, Jacob N Israelachvili
Measuring truly equilibrium adhesion energies or contact angles to obtain the thermodynamic values are experimentally difficult because they require loading/unloading or advancing/receding boundaries to be measured at rates that can be slower than 1 nm/s. We have measured advancing-receding contact angles and loading-unloading energies for various systems and geometries involving molecularly smooth and chemically homogeneous surfaces moving at different but steady velocities in both directions, ±V, focusing on the thermodynamic limit of ±V → 0...
July 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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