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https://www.readbyqxmd.com/read/28538734/zika-virus-evolution-and-spread-in-the-americas
#1
Hayden C Metsky, Christian B Matranga, Shirlee Wohl, Stephen F Schaffner, Catherine A Freije, Sarah M Winnicki, Kendra West, James Qu, Mary Lynn Baniecki, Adrianne Gladden-Young, Aaron E Lin, Christopher H Tomkins-Tinch, Simon H Ye, Daniel J Park, Cynthia Y Luo, Kayla G Barnes, Rickey R Shah, Bridget Chak, Giselle Barbosa-Lima, Edson Delatorre, Yasmine R Vieira, Lauren M Paul, Amanda L Tan, Carolyn M Barcellona, Mario C Porcelli, Chalmers Vasquez, Andrew C Cannons, Marshall R Cone, Kelly N Hogan, Edgar W Kopp, Joshua J Anzinger, Kimberly F Garcia, Leda A Parham, Rosa M Gélvez Ramírez, Maria C Miranda Montoya, Diana P Rojas, Catherine M Brown, Scott Hennigan, Brandon Sabina, Sarah Scotland, Karthik Gangavarapu, Nathan D Grubaugh, Glenn Oliveira, Refugio Robles-Sikisaka, Andrew Rambaut, Lee Gehrke, Sandra Smole, M Elizabeth Halloran, Luis Villar, Salim Mattar, Ivette Lorenzana, Jose Cerbino-Neto, Clarissa Valim, Wim Degrave, Patricia T Bozza, Andreas Gnirke, Kristian G Andersen, Sharon Isern, Scott F Michael, Fernando A Bozza, Thiago M L Souza, Irene Bosch, Nathan L Yozwiak, Bronwyn L MacInnis, Pardis C Sabeti
Although the recent Zika virus (ZIKV) epidemic in the Americas and its link to birth defects have attracted a great deal of attention, much remains unknown about ZIKV disease epidemiology and ZIKV evolution, in part owing to a lack of genomic data. Here we address this gap in knowledge by using multiple sequencing approaches to generate 110 ZIKV genomes from clinical and mosquito samples from 10 countries and territories, greatly expanding the observed viral genetic diversity from this outbreak. We analysed the timing and patterns of introductions into distinct geographic regions; our phylogenetic evidence suggests rapid expansion of the outbreak in Brazil and multiple introductions of outbreak strains into Puerto Rico, Honduras, Colombia, other Caribbean islands, and the continental United States...
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28538723/genomic-epidemiology-reveals-multiple-introductions-of-zika-virus-into-the-united-states
#2
Nathan D Grubaugh, Jason T Ladner, Moritz U G Kraemer, Gytis Dudas, Amanda L Tan, Karthik Gangavarapu, Michael R Wiley, Stephen White, Julien Thézé, Diogo M Magnani, Karla Prieto, Daniel Reyes, Andrea M Bingham, Lauren M Paul, Refugio Robles-Sikisaka, Glenn Oliveira, Darryl Pronty, Carolyn M Barcellona, Hayden C Metsky, Mary Lynn Baniecki, Kayla G Barnes, Bridget Chak, Catherine A Freije, Adrianne Gladden-Young, Andreas Gnirke, Cynthia Luo, Bronwyn MacInnis, Christian B Matranga, Daniel J Park, James Qu, Stephen F Schaffner, Christopher Tomkins-Tinch, Kendra L West, Sarah M Winnicki, Shirlee Wohl, Nathan L Yozwiak, Joshua Quick, Joseph R Fauver, Kamran Khan, Shannon E Brent, Robert C Reiner, Paola N Lichtenberger, Michael J Ricciardi, Varian K Bailey, David I Watkins, Marshall R Cone, Edgar W Kopp, Kelly N Hogan, Andrew C Cannons, Reynald Jean, Andrew J Monaghan, Robert F Garry, Nicholas J Loman, Nuno R Faria, Mario C Porcelli, Chalmers Vasquez, Elyse R Nagle, Derek A T Cummings, Danielle Stanek, Andrew Rambaut, Mariano Sanchez-Lockhart, Pardis C Sabeti, Leah D Gillis, Scott F Michael, Trevor Bedford, Oliver G Pybus, Sharon Isern, Gustavo Palacios, Kristian G Andersen
Zika virus (ZIKV) is causing an unprecedented epidemic linked to severe congenital abnormalities. In July 2016, mosquito-borne ZIKV transmission was reported in the continental United States; since then, hundreds of locally acquired infections have been reported in Florida. To gain insights into the timing, source, and likely route(s) of ZIKV introduction, we tracked the virus from its first detection in Florida by sequencing ZIKV genomes from infected patients and Aedes aegypti mosquitoes. We show that at least 4 introductions, but potentially as many as 40, contributed to the outbreak in Florida and that local transmission is likely to have started in the spring of 2016-several months before its initial detection...
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28537943/reinforcing-effectiveness-of-midazolam-ethanol-and-sucrose-behavioral-economic-comparison-of-a-mixture-relative-to-its-component-solutions
#3
E Andrew Townsend, Donna M Platt, James K Rowlett, Peter G Roma, Kevin B Freeman
Benzodiazepines (BZs) are relatively safe when administered alone. However, these drugs can produce severe side effects when coadministered with ethanol. Despite these adverse consequences, rates of concurrent BZ and ethanol misuse are increasing, and it is unclear whether this behavior is maintained by an enhanced reinforcing effect of the mixture. To address this issue, the current study compared the reinforcing effectiveness of sucrose solutions mixed with midazolam, ethanol, or both. Eight male rats were trained to orally self-administer solutions of either sucrose (S), sucrose+midazolam (SM), sucrose+ethanol (SE), or sucrose+midazolam+ethanol (SME)...
May 19, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28537751/using-neutron-reflectometry-to-characterize-antimicrobial-protein-surface-coatings
#4
Peter W Akers, Andrew J Dingley, Simon Swift, Andrew R J Nelson, Julie Martin, Duncan James McGillivray
Understanding the interaction of adsorbed or covalently immobilized proteins with solid substrates at the molecular level guides the successful design of functionalized surfaces used in biomedical applications. In this report, neutron reflectometry (NR) was used to characterize the structure of surface-attached antimicrobial protein films, with antimicrobial activity assessed using an adaption of the Japanese Industrial Standard Test JIS Z 2801. NR allowed parameters influencing bioactivity to be measured at nanometer resolution and for conclusions about structural characteristics relating to bioactivity to be drawn...
May 24, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28533386/metabolic-basis-to-sherpa-altitude-adaptation
#5
James A Horscroft, Aleksandra O Kotwica, Verena Laner, James A West, Philip J Hennis, Denny Z H Levett, David J Howard, Bernadette O Fernandez, Sarah L Burgess, Zsuzsanna Ament, Edward T Gilbert-Kawai, André Vercueil, Blaine D Landis, Kay Mitchell, Monty G Mythen, Cristina Branco, Randall S Johnson, Martin Feelisch, Hugh E Montgomery, Julian L Griffin, Michael P W Grocott, Erich Gnaiger, Daniel S Martin, Andrew J Murray
The Himalayan Sherpas, a human population of Tibetan descent, are highly adapted to life in the hypobaric hypoxia of high altitude. Mechanisms involving enhanced tissue oxygen delivery in comparison to Lowlander populations have been postulated to play a role in such adaptation. Whether differences in tissue oxygen utilization (i.e., metabolic adaptation) underpin this adaptation is not known, however. We sought to address this issue, applying parallel molecular, biochemical, physiological, and genetic approaches to the study of Sherpas and native Lowlanders, studied before and during exposure to hypobaric hypoxia on a gradual ascent to Mount Everest Base Camp (5,300 m)...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28533375/keap1-modifying-small-molecule-reveals-muted-nrf2-signaling-responses-in-neural-stem-cells-from-huntington-s-disease-patients
#6
Luisa Quinti, Sharadha Dayalan Naidu, Ulrike Träger, Xiqun Chen, Kimberly Kegel-Gleason, David Llères, Colúm Connolly, Vanita Chopra, Cho Low, Sébastien Moniot, Ellen Sapp, Adelaide R Tousley, Petr Vodicka, Michael J Van Kanegan, Linda S Kaltenbach, Lisa A Crawford, Matthew Fuszard, Maureen Higgins, James R C Miller, Ruth E Farmer, Vijay Potluri, Susanta Samajdar, Lisa Meisel, Ningzhe Zhang, Andrew Snyder, Ross Stein, Steven M Hersch, Lisa M Ellerby, Eranthie Weerapana, Michael A Schwarzschild, Clemens Steegborn, Blair R Leavitt, Alexei Degterev, Sarah J Tabrizi, Donald C Lo, Marian DiFiglia, Leslie M Thompson, Albena T Dinkova-Kostova, Aleksey G Kazantsev
The activity of the transcription factor nuclear factor-erythroid 2 p45-derived factor 2 (NRF2) is orchestrated and amplified through enhanced transcription of antioxidant and antiinflammatory target genes. The present study has characterized a triazole-containing inducer of NRF2 and elucidated the mechanism by which this molecule activates NRF2 signaling. In a highly selective manner, the compound covalently modifies a critical stress-sensor cysteine (C151) of the E3 ligase substrate adaptor protein Kelch-like ECH-associated protein 1 (KEAP1), the primary negative regulator of NRF2...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28532206/the-clinical-use-of-arthur-boothroyd-ab-word-lists-in-australia-exploring-evidence-based-practice
#7
Andrew James Myles
OBJECTIVE: Limited empirical investigation exists validating the use of Arthur Boothroyd (AB) word recognition materials within the Australian clinical context. The current research was undertaken to examine the evidence base and clinical implementation/interpretation of AB words in Australia. DESIGN: An on-line 22-question survey was e-mailed to members of the peak audiology professional body in Australia. STUDY SAMPLE: Three hundred and twelve responses were recorded between April and June 2015 from audiologists of a range of ages, working in various clinical settings...
May 22, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28529627/-18-f-ge-180-pet-detects-reduced-microglia-activation-after-lm11a-31-therapy-in-a-mouse-model-of-alzheimer-s-disease
#8
Michelle L James, Nadia P Belichenko, Adam J Shuhendler, Aileen Hoehne, Lauren E Andrews, Christina Condon, Thuy-Vi V Nguyen, Vladimer Reiser, Paul Jones, William Trigg, Jianghong Rao, Sanjiv S Gambhir, Frank M Longo
Microglial activation is a key pathological feature of Alzheimer's disease (AD). PET imaging of translocator protein 18 kDa (TSPO) is a strategy to detect microglial activation in vivo. Here we assessed flutriciclamide ([(18)F]GE-180), a new second-generation TSPO-PET radiotracer, for its ability to monitor response to LM11A-31, a novel AD therapeutic in clinical trials. AD mice displaying pathology were treated orally with LM11A-31 for 3 months. Subsequent [(18)F]GE-180-PET imaging revealed significantly lower signal in cortex and hippocampus of LM11A-31-treated AD mice compared to those treated with vehicle, corresponding with decreased levels of TSPO immunostaining and microglial Iba1 immunostaining...
2017: Theranostics
https://www.readbyqxmd.com/read/28528873/measurement-of-peak-impact-loads-differ-between-accelerometers-effects-of-system-operating-range-and-sampling-rate
#9
Christina Ziebart, Lora M Giangregorio, Jenna C Gibbs, Iris C Levine, James Tung, Andrew C Laing
A wide variety of accelerometer systems, with differing sensor characteristics, are used to detect impact loading during physical activities. The study examined the effects of system characteristics on measured peak impact loading during a variety of activities by comparing outputs from three separate accelerometer systems, and by assessing the influence of simulated reductions in operating range and sampling rate. Twelve healthy young adults performed seven tasks (vertical jump, box drop, heel drop, and bilateral single leg and lateral jumps) while simultaneously wearing three tri-axial accelerometers including a criterion standard laboratory-grade unit (Endevco 7267A) and two systems primarily used for activity-monitoring (ActiGraph GT3X+, GCDC X6-2mini)...
May 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28527533/global-regional-and-national-burden-of-cardiovascular-diseases-for-10-causes-1990-to-2015
#10
Gregory A Roth, Catherine Johnson, Amanuel Abajobir, Foad Abd-Allah, Semaw Ferede Abera, Gebre Abyu, Muktar Ahmed, Baran Aksut, Tahiya Alam, Khurshid Alam, François Alla, Nelson Alvis-Guzman, Stephen Amrock, Hossein Ansari, Johan Ärnlöv, Hamid Asayesh, Tesfay Mehari Atey, Leticia Avila-Burgos, Ashish Awasthi, Amitava Banerjee, Aleksandra Barac, Till Bärnighausen, Lars Barregard, Neeraj Bedi, Ezra Belay Ketema, Derrick Bennett, Gebremedhin Berhe, Zulfiqar Bhutta, Shimelash Bitew, Jonathan Carapetis, Juan Jesus Carrero, Deborah Carvalho Malta, Carlos Andres Castañeda-Orjuela, Jacqueline Castillo-Rivas, Ferrán Catalá-López, Jee-Young Choi, Hanne Christensen, Massimo Cirillo, Leslie Cooper, Michael Criqui, David Cundiff, Albertino Damasceno, Lalit Dandona, Rakhi Dandona, Kairat Davletov, Samath Dharmaratne, Prabhakaran Dorairaj, Manisha Dubey, Rebecca Ehrenkranz, Maysaa El Sayed Zaki, Emerito Jose A Faraon, Alireza Esteghamati, Talha Farid, Maryam Farvid, Valery Feigin, Eric L Ding, Gerry Fowkes, Tsegaye Gebrehiwot, Richard Gillum, Audra Gold, Philimon Gona, Rajeev Gupta, Tesfa Dejenie Habtewold, Nima Hafezi-Nejad, Tesfaye Hailu, Gessessew Bugssa Hailu, Graeme Hankey, Hamid Yimam Hassen, Kalkidan Hassen Abate, Rasmus Havmoeller, Simon I Hay, Masako Horino, Peter J Hotez, Kathryn Jacobsen, Spencer James, Mehdi Javanbakht, Panniyammakal Jeemon, Denny John, Jost Jonas, Yogeshwar Kalkonde, Chante Karimkhani, Amir Kasaeian, Yousef Khader, Abdur Khan, Young-Ho Khang, Sahil Khera, Abdullah T Khoja, Jagdish Khubchandani, Daniel Kim, Dhaval Kolte, Soewarta Kosen, Kristopher J Krohn, G Anil Kumar, Gene Kwan, Dharmesh Kumar Lal, Anders Larsson, Shai Linn, Alan Lopez, Paulo A Lotufo, Hassan Magdy Abd El Razek, Reza Malekzadeh, Mohsen Mazidi, Toni Meier, Kidanu Gebremariam Meles, George Mensah, Atte Meretoja, Haftay Mezgebe, Ted Miller, Erkin Mirrakhimov, Shafiu Mohammed, Andrew E Moran, Kamarul Imran Musa, Jagat Narula, Bruce Neal, Frida Ngalesoni, Grant Nguyen, Carla Makhlouf Obermeyer, Mayowa Owolabi, George Patton, João Pedro, Dima Qato, Mostafa Qorbani, Kazem Rahimi, Rajesh Kumar Rai, Salman Rawaf, Antônio Ribeiro, Saeid Safiri, Joshua A Salomon, Itamar Santos, Milena Santric Milicevic, Benn Sartorius, Aletta Schutte, Sadaf Sepanlou, Masood Ali Shaikh, Min-Jeong Shin, Mehdi Shishehbor, Hirbo Shore, Diego Augusto Santos Silva, Eugene Sobngwi, Saverio Stranges, Soumya Swaminathan, Rafael Tabarés-Seisdedos, Niguse Tadele Atnafu, Fisaha Tesfay, J S Thakur, Amanda Thrift, Roman Topor-Madry, Thomas Truelsen, Stefanos Tyrovolas, Kingsley Nnanna Ukwaja, Olalekan Uthman, Tommi Vasankari, Vasiliy Vlassov, Stein Emil Vollset, Tolassa Wakayo, David Watkins, Robert Weintraub, Andrea Werdecker, Ronny Westerman, Charles Shey Wiysonge, Charles Wolfe, Abdulhalik Workicho, Gelin Xu, Yuichiro Yano, Paul Yip, Naohiro Yonemoto, Mustafa Younis, Chuanhua Yu, Theo Vos, Mohsen Naghavi, Christopher Murray
BACKGROUND: The burden of cardiovascular diseases (CVDs) remains unclear in many regions of the world. OBJECTIVES: The GBD (Global Burden of Disease) 2015 study integrated data on disease incidence, prevalence, and mortality to produce consistent, up-to-date estimates for cardiovascular burden. METHODS: CVD mortality was estimated from vital registration and verbal autopsy data. CVD prevalence was estimated using modeling software and data from health surveys, prospective cohorts, health system administrative data, and registries...
May 15, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28526392/susceptibility-to-tobacco-product-use-among-youth-in-wave-1-of-the-population-assessment-of-tobacco-and-health-path-study
#11
Dennis R Trinidad, John P Pierce, James D Sargent, Martha M White, David R Strong, David B Portnoy, Victoria R Green, Cassandra A Stanton, Kelvin Choi, Maansi Bansal-Travers, Yuyan Shi, Jennifer Pearson, Annette R Kaufman, Nicolette Borek, Blair N Coleman, Andrew Hyland, Charles Carusi, Sheila Kealey, Eric Leas, Madison Noble, Karen Messer
The purpose of this study was to investigate susceptibility and ever use of tobacco products among adolescents and young adults in the US. Cross-sectional analysis of Wave 1(2013-2014) adolescent (12-17year-olds; n=13,651) and young adult (18-24year-olds; n=9112) data from the nationally-representative Population Assessment of Tobacco and Health (PATH) Study was conducted. At 12years, 5% were ever tobacco users and 36% were susceptible to use. Seventy percent were susceptible at age 17years, and the same proportion were ever users at age 22years...
May 16, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28525923/a-national-implementation-project-to-prevent-catheter-associated-urinary-tract-infection-in-nursing-home-residents
#12
Lona Mody, M Todd Greene, Jennifer Meddings, Sarah L Krein, Sara E McNamara, Barbara W Trautner, David Ratz, Nimalie D Stone, Lillian Min, Steven J Schweon, Andrew J Rolle, Russell N Olmsted, Dale R Burwen, James Battles, Barbara Edson, Sanjay Saint
Importance: Catheter-associated urinary tract infection (UTI) in nursing home residents is a common cause of sepsis, hospital admission, and antimicrobial use leading to colonization with multidrug-resistant organisms. Objective: To develop, implement, and evaluate an intervention to reduce catheter-associated UTI. Design, Setting, and Participants: A large-scale prospective implementation project was conducted in community-based nursing homes participating in the Agency for Healthcare Research and Quality Safety Program for Long-Term Care...
May 19, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28525755/antibodies-from-a-human-survivor-define-sites-of-vulnerability-for-broad-protection-against-ebolaviruses
#13
Anna Z Wec, Andrew S Herbert, Charles D Murin, Elisabeth K Nyakatura, Dafna M Abelson, J Maximilian Fels, Shihua He, Rebekah M James, Marc-Antoine de La Vega, Wenjun Zhu, Russell R Bakken, Eileen Goodwin, Hannah L Turner, Rohit K Jangra, Larry Zeitlin, Xiangguo Qiu, Jonathan R Lai, Laura M Walker, Andrew B Ward, John M Dye, Kartik Chandran, Zachary A Bornholdt
Experimental monoclonal antibody (mAb) therapies have shown promise for treatment of lethal Ebola virus (EBOV) infections, but their species-specific recognition of the viral glycoprotein (GP) has limited their use against other divergent ebolaviruses associated with human disease. Here, we mined the human immune response to natural EBOV infection and identified mAbs with exceptionally potent pan-ebolavirus neutralizing activity and protective efficacy against three virulent ebolaviruses. These mAbs recognize an inter-protomer epitope in the GP fusion loop, a critical and conserved element of the viral membrane fusion machinery, and neutralize viral entry by targeting a proteolytically primed, fusion-competent GP intermediate (GPCL) generated in host cell endosomes...
May 18, 2017: Cell
https://www.readbyqxmd.com/read/28524820/chemical-structure-guided-design-of-dynapyrazoles-potent-cell-permeable-dynein-inhibitors-with-a-unique-mode-of-action
#14
Jonathan Baruch Steinman, Cristina C Santarossa, Rand M Miller, Lola S Yu, Anna S Serpinskaya, Hideki Furukawa, Sachie Morimoto, Yuta Tanaka, Mitsuyoshi Nishitani, Moriteru Asano, Ruta Zalyte, Alison E Ondrus, Alex G Johnson, Fan Ye, Maxence V Nachury, Yoshiyuki Fukase, Kazuyoshi Aso, Michael A Foley, Vladimir I Gelfand, James K Chen, Andrew P Carter, Tarun M Kapoor
Cytoplasmic dyneins are motor proteins in the AAA+ superfamily that power transport of cellular cargos towards microtubule minus-ends. Recently, ciliobrevins were reported as selective cell-permeable inhibitors of cytoplasmic dyneins. As is often true for first-in-class inhibitors, the use of ciliobrevins has been limited by low potency. Moreover, suboptimal chemical properties, such as the potential to isomerize, have hindered efforts to improve ciliobrevins. Here, we characterized the structure of ciliobrevins and designed conformationally-constrained isosteres...
May 19, 2017: ELife
https://www.readbyqxmd.com/read/28523513/erratum-to-high-interspecimen-variability-in-engagement-of-the-anterolateral-ligament-an-in-vitro-cadaveric-study
#15
Robert N Kent, James F Boorman-Padgett, Ran Thein, Jelle P van der List, Danyal H Nawabi, Thomas L Wickiewicz, Carl W Imhauser, Andrew D Pearle
No abstract text is available yet for this article.
May 18, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28523268/the-sedative-effect-of-propranolol-on-critically-ill-patients-a-case-series
#16
Junji Shiotsuka, Andrew Steel, James Downar
INTRODUCTION: Recent studies have examined the effectiveness of alpha-2 adrenergic agonists for controlling delirium and agitation. Propranolol, a non-selective beta-adrenergic antagonist with good penetration of the blood-brain barrier, has not been investigated for this purpose. MATERIALS AND METHODS: We retrospectively reviewed the medical records of all patients who were prescribed propranolol in our Medical Surgical ICU from January 1, 2010, to December 31, 2013...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28522011/vaccination-with-a-live-attenuated-acinetobacter-baumannii-deficient-in-thioredoxin-provides-protection-against-systemic-acinetobacter-infection
#17
Sarah Ainsworth, Patrick M Ketter, Jieh-Juen Yu, Rose C Grimm, Holly C May, Andrew P Cap, James P Chambers, M Neal Guentzel, Bernard P Arulanandam
Multi-drug resistant Acinetobacter baumannii (MDR-Ab), an opportunistic pathogen associated with nosocomial and combat related infections, has a high mortality due to its virulence and limited treatment options. Deletion of the thioredoxin gene (TrxA) from a clinical isolate of MDR-Ab resulted in a 100-fold increase in 50% lethal dose (LD50) in a systemic challenge murine model. Thus, we investigated the potential use of this attenuated strain as a live vaccine against MDR-Ab. Mice were vaccinated by subcutaneous (s...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28521630/isolated-ventricular-noncompaction-cardiomyopathy-presenting-as-fetal-hydrops-at-24-weeks-gestation
#18
Jane E Armes, Lisa Squires, Rohan Lourie, Mark Williams, Renee Gallagher, Gareth Price, Andrew Stubbs, Sigrid Ma Swagemakers, Peter J van der Spek, James Harraway, Joseph Thomas, Deon J Venter
Ventricular noncompaction cardiomyopathy is a rare form of congenital cardiomyopathy with increasing evidence of genetic etiology, especially when presenting in childhood. Fetal presentation is rare. We describe a case of fetal hydrops, presenting at 24 weeks gestation and leading to intrapartum death at 26 weeks gestation. Autopsy examination revealed characteristic features of left ventricular noncompaction. A genetic analysis identified a constellation of variants of unknown significance in MYH6, TNNC1, and MYBPC3, genes known to be important in sarcomeric function...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28520680/acute-pediatric-monteggia-fractures-a-conservative-approach-to-stabilization
#19
Ian Foran, Vidyadhar V Upasani, Charles D Wallace, Elise Britt, Tracey P Bastrom, James D Bomar, Andrew T Pennock
BACKGROUND: In 2015, a multicenter study group proposed a treatment algorithm for pediatric Monteggia fractures based upon the ulnar fracture pattern. This strategy recommends surgical stabilization for all complete ulna fractures. The purpose of this study was to evaluate whether an initial nonoperative approach to pediatric Monteggia fractures resulted in poorer outcomes and a higher rate of complications. METHODS: This institutional review board approved retrospective study evaluated all Monteggia fractures presenting to a level 1 pediatric trauma center between 2008 and 2014...
May 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28518122/dorsal-root-ganglion-injection-and-dorsal-root-crush-injury-as-a-model-for-sensory-axon-regeneration
#20
Menghon Cheah, James W Fawcett, Melissa R Andrews
Achieving axon regeneration after nervous system injury is a challenging task. As different parts of the central nervous system (CNS) differ from each other anatomically, it is important to identify an appropriate model to use for the study of axon regeneration. By using a suitable model, we can formulate a specific treatment based on the severity of injury, the neuronal cell type of interest, and the desired spinal tract for assessing regeneration. Within the sensory pathway, DRG neurons are responsible for relaying sensory information from the periphery to the CNS...
May 3, 2017: Journal of Visualized Experiments: JoVE
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