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https://www.readbyqxmd.com/read/29343712/zika-virus-infection-in-pregnant-rhesus-macaques-causes-placental-dysfunction-and-immunopathology
#1
Alec J Hirsch, Victoria H J Roberts, Peta L Grigsby, Nicole Haese, Matthias C Schabel, Xiaojie Wang, Jamie O Lo, Zheng Liu, Christopher D Kroenke, Jessica L Smith, Meredith Kelleher, Rebecca Broeckel, Craig N Kreklywich, Christopher J Parkins, Michael Denton, Patricia Smith, Victor DeFilippis, William Messer, Jay A Nelson, Jon D Hennebold, Marjorie Grafe, Lois Colgin, Anne Lewis, Rebecca Ducore, Tonya Swanson, Alfred W Legasse, Michael K Axthelm, Rhonda MacAllister, Ashlee V Moses, Terry K Morgan, Antonio E Frias, Daniel N Streblow
Zika virus (ZIKV) infection during pregnancy leads to an increased risk of fetal growth restriction and fetal central nervous system malformations, which are outcomes broadly referred to as the Congenital Zika Syndrome (CZS). Here we infect pregnant rhesus macaques and investigate the impact of persistent ZIKV infection on uteroplacental pathology, blood flow, and fetal growth and development. Despite seemingly normal fetal growth and persistent fetal-placenta-maternal infection, advanced non-invasive in vivo imaging studies reveal dramatic effects on placental oxygen reserve accompanied by significantly decreased oxygen permeability of the placental villi...
January 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29329684/impact-of-seasonal-influenza-vaccination-in-the-presence-of-vaccine-interference
#2
Eunha Shim, Kenneth J Smith, Mary Patricia Nowalk, Jonathan M Raviotta, Shawn T Brown, Jay DePasse, Richard K Zimmerman
BACKGROUND: Annual influenza vaccination is a key to preventing widespread influenza infections. Recent reports of influenza vaccine effectiveness (VE) indicate that vaccination in prior years may reduce VE in the current season, suggesting vaccine interference. The purpose of this study is to evaluate the potential effect of repeat influenza vaccinations in the presence of vaccine interference. METHODS: Using literature-based parameters, an age-structured influenza equation-based transmission model was used to determine the optimal vaccination strategy, while considering the effect of varying levels of interference...
January 9, 2018: Vaccine
https://www.readbyqxmd.com/read/29300191/sonographically-detected-transligamentous-median-nerve-branch
#3
John P Beckman, Jacob L Sellon, Nirusha Lachman, Jay Smith
No abstract text is available yet for this article.
January 4, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29247712/effects-of-normobaric-hypoxia-on-upper-body-critical-power-and-anaerobic-working-capacity
#4
Michael B La Monica, David H Fukuda, Tristan M Starling-Smith, Ran Wang, Jay R Hoffman, Jeffrey R Stout
PURPOSE: To evaluate the effects of moderate normobaric hypoxia on the parameters of the work-time relationship in the upper body. METHODS: Twenty-one recreationally active men completed a graded exercise test in both normobaric hypoxia (H) and normoxia (N) to exhaustion on an arm ergometer to determine V̇O2peak and peak power output (PPO). Each participant completed four constant work-rate (CWR) arm-cranking tests at 90-120% PPO in both environmental conditions...
December 13, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29246954/immunoregulatory-activity-of-the-natural-product-laminarin-varies-widely-as-a-result-of-its-physical-properties
#5
Alyson J Smith, Bridget Graves, Robert Child, Peter J Rice, Zuchao Ma, Douglas W Lowman, Harry E Ensley, Kendal T Ryter, Jay T Evans, David L Williams
Ligation of Dectin-1 by fungal glucans elicits a Th17 response that is necessary for clearing many fungal pathogens. Laminarin is a (1→3, 1→6)-β-glucan that is widely reported to be a Dectin-1 antagonist, however, there are reports that laminarin is also a Dectin-1 agonist. To address this controversy, we assessed the physical properties, structure, purity, Dectin-1 binding, and biological activity of five different laminarin preparations from three different commercial sources. The proton nuclear magnetic resonance analysis indicated that all of the preparations contained laminarin although their molecular mass varied considerably (4400-34,400 Da)...
December 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29203268/efficacy-and-safety-of-blue-light-flexible-cystoscopy-with-hexaminolevulinate-hal-in-the-surveillance-of-bladder-cancer-a-phase-iii-comparative-multi-center-study
#6
Siamak Daneshmand, Sanjay Patel, Yair Lotan, Kamal Pohar, Edouard Trabulsi, Michael Woods, Tracy Downs, William Huang, Jeffrey Jones, Michael O'Donnell, Trinity Bivalacqua, Joel DeCastro, Gary Steinberg, Ashish Kamat, Matthew Resnick, Badrinath Konety, Mark Schoenberg, J Stephen Jones, Soroush Bazargani, Michael Cookson, Brian Cross, Costas Dan Lallas, Hoorman Djaladat, Leonard Gomella, Michael Johnson, James McKiernan, Mark Mann, Megan Merrill, Matthew Nielsen, Phillip Pierorazio, Raj Pruthi, Alexander Sankin, Anne Schuckman, Ahmad Shabsigh, Jay B Shah, Angela Smith, Kelley Stratton, Jennifer Taylor, Christopher Weight, Sven Wenske
PURPOSE: To compare blue light flexible cystoscopy (BLFC) with white light flexible cystoscopy (WLFC) in the detection of bladder cancer during surveillance. MATERIALS AND METHODS: Patients at high risk of recurrence received intravesical HAL before WLFC and randomization to BLFC. All suspicious lesions were documented. Patients with suspicious lesions were referred to the operating room (OR) for repeat WLC (white light) and BLC (blue light) cystoscopy. All suspected lesions underwent biopsy or resection and specimens were examined by an independent pathology consensus panel...
December 1, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29193420/accessory-neuropathy-after-sternotomy-clinico-anatomical-correlation-supporting-an-inflammatory-cause
#7
Mohammad W Kassem, Joe Iwanaga, Marios Loukas, Jonathan J Stone, Jay Smith, Robert J Spinner, R Shane Tubbs
Inflammatory etiologies are becoming increasingly recognized as explanations of some neuropathies, especially those occurring in the perioperative period. Although "brachial neuritis" is known to affect extraplexal nerves, accessory nerve palsy following median sternotomy has been attributed to stretch on the nerve. To better elucidate stretch as a potential cause, a cadaveric study was performed. Two patients who developed accessory nerve palsy following median sternotomy are presented to illustrate features consistent with the diagnosis of a perioperative inflammatory neuropathy...
November 28, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29186670/changes-in-extreme-events-and-the-potential-impacts-on-human-health
#8
Jesse E Bell, Claudia Langford Brown, Kathryn Conlon, Stephanie Herring, Kenneth E Kunkel, Jay Lawrimore, George Luber, Carl Schreck, Adam Smith, Christopher Uejio
Extreme weather and climate-related events affect human health by causing death, injury, and illness, as well as having large socioeconomic impacts. Climate change has caused changes in extreme event frequency, intensity and geographic distribution, and will continue to be a driver for change in the future. Some of these events include heat waves, droughts, wildfires, dust storms, flooding rains, coastal flooding, storm surge, and hurricanes. The pathways connecting extreme events to health outcomes and economic losses can be diverse and complex...
November 29, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29161539/home-is-where-the-future-is-the-brightfocus-foundation-consensus-panel-on-dementia-care
#9
Quincy M Samus, Constantine G Lyketsos, Betty Smith Black, Diane Bovenkamp, Michael Buckley, Christopher Callahan, Karen Davis, Laura N Gitlin, Nancy Hodgson, Deirdre Johnston, Helen C Kales, Michele Karel, John Jay Kenney, Shari M Ling, Maï Panchal, Melissa Reuland, Amber Willink
INTRODUCTION: A national consensus panel was convened to develop recommendations on future directions for home-based dementia care (HBDC). METHODS: The panel summarized advantages and challenges of shifting to HBDC as the nexus of care and developed consensus-based recommendations. RESULTS: The panel developed five core recommendations: (1) HBDC should be considered the nexus of new dementia models, from diagnosis to end of life in dementia; (2) new payment models are needed to support HBDC and reward integration of care; (3) a diverse new workforce that spans the care continuum should be prepared urgently; (4) new technologies to promote communication, monitoring/safety, and symptoms management must be tested, integrated, and deployed; and (5) targeted dissemination efforts for HBDC must be employed...
November 18, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29141724/prostatic-abscess-due-to-burkholderia-pseudomallei-facilitating-diagnosis-to-optimize-management
#10
Jowita Kozlowska, Simon Smith, Jay Roberts, Simon Pridgeon, Josh Hanson
Prostatic involvement is common in men with melioidosis. Indeed, some clinicians recommend radiological screening of all male patients as an undrained prostatic abscess may result in relapse of this potentially fatal disease. However, sophisticated medical imaging is frequently unavailable in the remote and resource-poor locations where patients are managed. In this retrospective study from Queensland, Australia, 22/144 (15%) men with melioidosis had a radiologically confirmed prostatic abscess. The absence of urinary symptoms had a negative predictive value (NPV) (95% confidence interval [CI]) for prostatic abscess of 96% (90-99%), whereas a urinary leukocyte count of < 50 × 10(6)/L had an NPV (95% CI) of 100% (94-100%)...
October 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29140122/lymphangioleiomyomatosis-diagnosis-and-management-high-resolution-chest-computed-tomography-transbronchial-lung-biopsy-and-pleural-disease-management-an-official-american-thoracic-society-japanese-respiratory-society-clinical-practice-guideline
#11
Nishant Gupta, Geraldine A Finlay, Robert M Kotloff, Charlie Strange, Kevin C Wilson, Lisa R Young, Angelo M Taveira-DaSilva, Simon R Johnson, Vincent Cottin, Steven A Sahn, Jay H Ryu, Kuniaki Seyama, Yoshikazu Inoue, Gregory P Downey, MeiLan K Han, Thomas V Colby, Kathryn A Wikenheiser-Brokamp, Cristopher A Meyer, Karen Smith, Joel Moss, Francis X McCormack
BACKGROUND: Recommendations regarding key aspects related to the diagnosis and pharmacological treatment of lymphangioleiomyomatosis (LAM) were recently published. We now provide additional recommendations regarding four specific questions related to the diagnosis of LAM and management of pneumothoraces in patients with LAM. METHODS: Systematic reviews were performed and then discussed by a multidisciplinary panel. For each intervention, the panel considered its confidence in the estimated effects, the balance of desirable (i...
November 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29110069/correction-to-a-multi-center-analysis-of-adverse-events-among-two-thousand-three-hundred-and-seventy-two-adult-patients-undergoing-adult-autologous-stem-cell-therapy-for-orthopaedic-conditions
#12
Christopher J Centeno, Hasan Al-Sayegh, Michael D Freeman, Jay Smith, William D Murrell, Rostyslav Bubnov
The published online version contains mistake in Acknowledgment Section. The author name "Steve Gorin, M.D." should have been "Steven Gorin, D.O, M.S.Ed.".
November 6, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29104953/exploring-the-multiligand-binding-specificity-of-saposin-b-reveals-two-binding-sites
#13
Jay Tinklepaugh, Britannia M Smith, Etta Hanlon, Chloe Zubieta, Fadi Bou-Abdallah, Robert P Doyle
Saposin B (SapB) is a human lysosomal protein, critical for the degradation of O-sulfogalactosylceramide (sulfatide). SapB binds sulfatide and presents it to the active site of the enzyme arylsulfatase A. Deficiency of SapB leads to fatal activator-deficient metachromatic leukodystrophy. Given the conformational flexibility and the large hydrophobic "pocket" produced upon (physiologically relevant) homodimerization, SapB may have broader substrate diversity than originally thought. Herein, we present evidence using fluorescence spectroscopy and computational docking studies that SapB binds a wide variety of ligands at KD values varying from micromolar to nanomolar, with entropy being the primary driving force...
October 31, 2017: ACS Omega
https://www.readbyqxmd.com/read/29104114/newfound-sex-differences-in-axonal-structure-underlie-differential-outcomes-from-in-vitro-traumatic-axonal-injury
#14
Jean-Pierre Dollé, Andrew Jaye, Stewart A Anderson, Hossein Ahmadzadeh, Vivek B Shenoy, Douglas H Smith
Since traumatic axonal injury (TAI) is implicated as a prominent pathology of concussion, we examined potential sex differences in axon structure and responses to TAI. Rat and human neurons were used to develop micropatterned axon tracts in vitro that were genetically either male or female. Ultrastructural analysis revealed for the first time that female axons were consistently smaller with fewer microtubules than male axons. Computational modeling of TAI showed that these structural differences place microtubules in female axons at greater risk of failure during trauma under the same applied loads than in male axons...
November 13, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29097605/pura-syndrome-clinical-delineation-and-genotype-phenotype-study-in-32-individuals-with-review-of-published-literature
#15
Margot R F Reijnders, Robert Janowski, Mohsan Alvi, Jay E Self, Ton J van Essen, Maaike Vreeburg, Rob P W Rouhl, Servi J C Stevens, Alexander P A Stegmann, Jolanda Schieving, Rolph Pfundt, Katinke van Dijk, Eric Smeets, Connie T R M Stumpel, Levinus A Bok, Jan Maarten Cobben, Marc Engelen, Sahar Mansour, Margo Whiteford, Kate E Chandler, Sofia Douzgou, Nicola S Cooper, Ene-Choo Tan, Roger Foo, Angeline H M Lai, Julia Rankin, Andrew Green, Tuula Lönnqvist, Pirjo Isohanni, Shelley Williams, Ilene Ruhoy, Karen S Carvalho, James J Dowling, Dorit L Lev, Katalin Sterbova, Petra Lassuthova, Jana Neupauerová, Jeff L Waugh, Sotirios Keros, Jill Clayton-Smith, Sarah F Smithson, Han G Brunner, Ceciel van Hoeckel, Mel Anderson, Virginia E Clowes, Victoria Mok Siu, The Ddd Study, Paulo Selber, Richard J Leventer, Christoffer Nellaker, Dierk Niessing, David Hunt, Diana Baralle
BACKGROUND: De novo mutations in PURA have recently been described to cause PURA syndrome, a neurodevelopmental disorder characterised by severe intellectual disability (ID), epilepsy, feeding difficulties and neonatal hypotonia. OBJECTIVES: To delineate the clinical spectrum of PURA syndrome and study genotype-phenotype correlations. METHODS: Diagnostic or research-based exome or Sanger sequencing was performed in individuals with ID. We systematically collected clinical and mutation data on newly ascertained PURA syndrome individuals, evaluated data of previously reported individuals and performed a computational analysis of photographs...
November 2, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29095647/correction-to-steven-deitelzweig-et-al-comparison-of-effectiveness-and-safety-of-treatment-with-apixaban-vs-other-oral-anticoagulants-among-elderly-nonvalvular-atrial-fibrillation-patients
#16
Steve Deitelzweig, Xuemei Luo, Kiran Gupta, Jack Mardekian, Jeffrey N Trocio, Tammy Curtice, Melissa Lingohr-Smith, Brandy Menges, Jay Lin
No abstract text is available yet for this article.
November 2, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29083968/effect-of-apixaban-versus-warfarin-use-on-health-care-resource-utilization-and-costs-among-elderly-patients-with-nonvalvular-atrial-fibrillation
#17
Steven Deitelzweig, Xuemei Luo, Kiran Gupta, Jeffrey Trocio, Jack Mardekian, Tammy Curtice, Melissa Lingohr-Smith, Brandy Menges, Jay Lin
BACKGROUND: The clinical trial ARISTOTLE showed that apixaban was superior to warfarin in reducing the risks of stroke and bleeding among patients with nonvalvular atrial fibrillation (NVAF). Further study of the effect of apixaban versus warfarin use on health care resource utilization (HCRU) and associated costs in the real-world setting is warranted, especially among elderly patients who are at higher risk of stroke and bleeding. OBJECTIVE: To compare HCRU and costs among elderly NVAF patients treated with apixaban versus warfarin in the United States...
November 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/29057298/saposin-b-binds-the-lipofuscin-bisretinoid-a2e-and-prevents-its-enzymatic-and-photooxidation
#18
Jay Tinklepaugh, Britannia M Smith, Yan Nie, Kelsey Moody, Kris Grohn, Fadi Bou-Abdallah, Robert P Doyle
Vitamin A based bisretinoid accumulation is a major focus in the study of macular degeneration. Whether specific endogenous lysosomal proteins can bind A2E, a pronounced bisretinoid in lipofuscin granules in retinal pigment epithelial cells, and interfere with enzymatic or photoinduced oxidation of such, has not been explored. Herein, using fluorescence and electronic absorption spectroscopy and mass spectrometry, we demonstrate that Saposin B, a critical protein in the degradation of sulfatides and "flushing" of lipids, can bind A2E, preventing its H2O2-dependent enzymatic oxidation by horseradish peroxidase and photooxidation by blue light (λ=450-460 nm)...
June 2017: ChemPhotoChem
https://www.readbyqxmd.com/read/29044725/serum-sclerostin-levels-in-adults-with-osteogenesis-imperfecta-comparison-with-normal-individuals-and-response-to-teriparatide-therapy
#19
Lindsey Nicol, Ying Wang, Rosamund Smith, John Sloan, Sandesh C S Nagamani, Jay Shapiro, Brendan Lee, Eric Orwoll
Sclerostin (SOST), a glycoprotein primarily derived from osteocytes, is an important regulator of bone remodeling. Osteogenesis imperfecta ([1]) is a heritable disorder of bone characterized by low bone mass, bone fragility, recurrent fractures, and bone deformities. Altered SOST-mediated signaling may have a role in pathogenesis of type I collagen-related OI; however this has not been evaluated in humans. We measured serum SOST levels in adults with OI who were enrolled in a randomized, placebo-controlled clinical trial that evaluated the effects of osteoanabolic therapy with teriparatide...
October 17, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29041068/relativistic-electron-acceleration-by-mj-class-khz-lasers-normally-incident-on-liquid-targets
#20
Scott Feister, Drake R Austin, John T Morrison, Kyle D Frische, Chris Orban, Gregory Ngirmang, Abraham Handler, Joseph R H Smith, Mark Schillaci, Jay A LaVerne, Enam A Chowdhury, R R Freeman, W M Roquemore
We report observation of kHz-pulsed-laser-accelerated electron energies up to 3 MeV in the -klaser (backward) direction from a 3 mJ laser interacting at normal incidence with a solid density, flowing-liquid target. The electrons/MeV/s.r. >1 MeV recorded here using a mJ-class laser exceeds or equals that of prior super-ponderomotive electron studies employing lasers at lower repetition-rates and oblique incidence. Focal intensity of the 40-fs-duration laser is 1.5 · 10(18) W cm(-2), corresponding to only ∼80 keV electron ponderomotive energy...
August 7, 2017: Optics Express
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