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Brian smith

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https://www.readbyqxmd.com/read/29778523/local-immunomodulation-with-anti-inflammatory-cytokine-encoding-lentivirus-enhances-functional-recovery-after-spinal-cord-injury
#1
Jonghyuck Park, Joseph T Decker, Daniel J Margul, Dominique R Smith, Brian J Cummings, Aileen J Anderson, Lonnie D Shea
Trauma to the spinal cord and associated secondary inflammation can lead to permanent loss of sensory and motor function below the injury level, with the resulting environment serving as a barrier that limits regeneration. In this study, we investigate the localized expression of anti-inflammatory cytokines IL-10 and IL-4 via lentiviral transduction in multichannel bridges. Porous multichannel bridges provide physical guidance for axonal outgrowth with the cytokines hypothesized to modulate the neuroinflammatory microenvironment and enhance axonal regeneration...
April 27, 2018: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29774392/cost-effectiveness-of-ventricular-assist-device-destination-therapy-for-advanced-heart-failure-in-duchenne-muscular-dystrophy
#2
Defne A Magnetta, JaHyun Kang, Peter D Wearden, Kenneth J Smith, Brian Feingold
Destination ventricular assist device therapy (DT-VAD) is well accepted in select adults with medically refractory heart failure (HF) who are not transplant candidates; however, its use in younger patients with progressive diseases is unclear. We sought to evaluate the cost-effectiveness of DT-VAD in Duchenne muscular dystrophy (DMD) patients with advanced HF. We created a Markov-state transition model (5-year horizon) to compare survival, costs, and quality of life (QOL) between medical management and DT-VAD in DMD with advanced HF...
May 17, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29772939/enabling-appropriate-personnel-skill-mix-for-progressive-realization-of-equitable-access-to-assistive-technology
#3
Emma M Smith, Rosemary Joan Gowran, Hasheem Mannan, Brian Donnelly, Liliana Alvarez, Diane Bell, Silvana Contepomi, Liezel Ennion Wegner, Evert-Jan Hoogerwerf, Tracey Howe, Yih-Kuen Jan, Jeanne Kagwiza, Natasha Layton, Ritchard Ledgerd, Malcolm MacLachlan, Giulia Oggero, Cecilia Pettersson, Thais Pousada, Elsje Scheffler, Sam Wu
BACKGROUND AND METHODS: This paper reviews the current capacity of personnel in enabling access to assistive technology (AT) as well as the systems and processes within which they work, and was reviewed, discussed, and refined during and following the Global Research, Innovation, and Education in Assistive Technology (GREAT) Summit. FINDINGS: Key concepts addressed include a person-centred team approach; sustainability indicators to monitor, measure, and respond to needs for service design and delivery; education, research, and training for competent practice, using the six rehab-workforce challenges framework; and credentialing frameworks...
May 17, 2018: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29769701/a-drosophila-model-of-essential-tremor
#4
Philip Smith, Ronald Arias, Shilpa Sonti, Zagaa Odgerel, Ismael Santa-Maria, Brian D McCabe, Krasimira Tsaneva-Atanasova, Elan D Louis, James J L Hodge, Lorraine N Clark
Essential Tremor (ET) is one of the most common neurological diseases, with an estimated 7 million affected individuals in the US; the pathophysiology of the disorder is poorly understood. Recently, we identified a mutation (KCNS2 (Kv9.2), c.1137 T > A, p.(D379E) in an electrically silent voltage-gated K+ channel α-subunit, Kv9.2, in a family with ET, that modulates the activity of Kv2 channels. We have produced transgenic Drosophila lines that express either the human wild type Kv9.2 (hKv9.2) or the ET causing mutant Kv9...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29767824/variability-in-verbal-and-nonverbal-communication-in-infants-at-risk-for-autism-spectrum-disorder-predictors-and-outcomes
#5
M Franchini, E Duku, V Armstrong, J Brian, S E Bryson, N Garon, W Roberts, C Roncadin, L Zwaigenbaum, I M Smith
Early communication impairment is among the most-reported first concerns in parents of young children with autism spectrum disorder (ASD). Using a parent-report questionnaire, we derived trajectory groups for early language and gesture acquisition in siblings at high risk for ASD and in children at low risk, during their first 2 years of life. Developmental skills at 6 months were associated with trajectory group membership representing growth in receptive language and gestures. Behavioral symptoms also predicted gesture development...
May 16, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29765101/favipiravir-t-705-protects-against-nipah-virus-infection-in-the-hamster-model
#6
Brian E Dawes, Birte Kalveram, Tetsuro Ikegami, Terry Juelich, Jennifer K Smith, Lihong Zhang, Arnold Park, Benhur Lee, Takashi Komeno, Yousuke Furuta, Alexander N Freiberg
Nipah and Hendra viruses are recently emerged bat-borne paramyxoviruses (genus Henipavirus) causing severe encephalitis and respiratory disease in humans with fatality rates ranging from 40-75%. Despite the severe pathogenicity of these viruses and their pandemic potential, no therapeutics or vaccines are currently approved for use in humans. Favipiravir (T-705) is a purine analogue antiviral approved for use in Japan against emerging influenza strains; and several phase 2 and 3 clinical trials are ongoing in the United States and Europe...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29762386/exposure-response-analysis-of-micafungin-in-neonatal-candidiasis-pooled-analysis-of-two-clinical-trials
#7
Laura L Kovanda, Thomas J Walsh, Daniel K Benjamin, Antonio Arrieta, David A Kaufman, P Brian Smith, Paolo Manzoni, Amit V Desai, Atsunori Kaibara, Peter L Bonate, William W Hope
BACKGROUND: Neonatal candidiasis causes significant morbidity and mortality in high risk infants. The micafungin dosage regimen of 10 mg/kg established for the treatment of neonatal candidiasis is based on a laboratory animal model of neonatal hematogenous Candida meningoencephalitis and pharmacokinetic (PK)-pharmacodynamic (PD) bridging studies. However, little is known about the how these PK-PD data translate clinically. METHODS: Micafungin plasma concentrations from infants were used to construct a population PK model using Pmetrics software...
June 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29762340/external-validation-of-the-adult-spinal-deformity-asd-frailty-index-asd-fi-in-the-scoli-risk-1-patient-database
#8
Emily K Miller, Lawrence G Lenke, Brian J Neuman, Daniel M Sciubba, Khaled M Kebaish, Justin S Smith, Yong Qiu, Benny T Dahl, Ferran Pellisé, Yukihiro Matsuyama, Leah Y Carreon, Michael G Fehlings, Kenneth M Cheung, Stephen Lewis, Mark B Dekutoski, Frank J Schwab, Oheneba Boachie-Adjei, Hossein Mehdian, Shay Bess, Christopher I Shaffrey, Christopher P Ames
STUDY DESIGN: Analysis of a prospective multicenter database. OBJECTIVE: To assess the ability of the recently created Adult Spinal Deformity (ASD) Frailty Index (ASD-FI) to predict odds of major complications and length of hospital stay for patients who had more severe preoperative deformity and underwent more invasive ASD surgery compared with patients in the database used to create the index. SUMMARY OF BACKGROUND DATA: Accurate preoperative estimates of risk are necessary given the high complication rates currently associated with ASD surgery...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29758480/analytical-and-clinical-performance-of-progesterone-receptor-antibodies-in-breast-cancer
#9
Benjamin C Calhoun, Brian Mosteller, Daniel Warren, Margie Smith, J Jordi Rowe, Christopher P Lanigan, Karen C Mrazeck, Espen Walker, Amy Hanlon Newell, Raymond Jones
OBJECTIVE: Comparison of analytical and immunohistochemical performance of progesterone receptor (PR) antibodies with correlation to recurrence of invasive breast cancer treated with endocrine therapy. METHODS: The binding-affinity kinetics of PR clones 1E2, 1A6, 16 and 636 were compared using synthetic peptides derived from identified epitopes on a Biacore T200. A cohort of 351 cases (Hormone Receptor (HR)+/HER2-) were stained for PR expression with immunohistochemistry (IHC) and scored according to ASCO/CAP criteria...
February 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29758374/age-and-alzheimer-s-pathology-disrupt-default-mode-network-functioning-via-alterations-in-white-matter-microstructure-but-not-hyperintensities
#10
Christopher A Brown, Yang Jiang, Charles D Smith, Brian T Gold
The default mode network (DMN) comprises defined brain regions contributing to internally-directed thought processes. Reductions in task-induced deactivation in the DMN have been associated with increasing age and poorer executive task performance, but factors underlying these functional changes remain unclear. We investigated contributions of white matter (WM) microstructure, WM hyperintensities (WMH) and Alzheimer's pathology to age-related alterations in DMN function. Thirty-five cognitively normal older adults and 29 younger adults underwent working memory task fMRI and diffusion tensor imaging...
April 19, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29758082/adjunct-antibody-administration-with-standard-treatment-reduces-relapse-rates-in-a-murine-tuberculosis-model-of-necrotic-granulomas
#11
Alvaro A Ordonez, Supriya Pokkali, Sunhwa Kim, Brian Carr, Mariah H Klunk, Leah Tong, Vikram Saini, Yong S Chang, Matthew McKevitt, Victoria Smith, David L Gossage, Sanjay K Jain
Matrix metalloproteinase (MMP)-9 is a zinc-dependent protease associated with early immune responses to Mycobacterium tuberculosis infection, macrophage recruitment and granuloma formation. We evaluated whether adjunctive inhibition of MMP-9 could improve the response to standard TB treatment in a mouse model that develops necrotic lesions. Six weeks after an aerosol infection with M. tuberculosis, C3HeB/FeJ mice received standard TB treatment (12 weeks) comprising rifampin, isoniazid and pyrazinamide alone or in combination with either anti-MMP-9 antibody, etanercept (positive control) or isotype antibody (negative control) for 6 weeks...
2018: PloS One
https://www.readbyqxmd.com/read/29753957/brainstem-blood-brain-barrier-disruption-using-focused-ultrasound-a-demonstration-of-feasibility-and-enhanced-doxorubicin-delivery
#12
Saira Alli, Carlyn A Figueiredo, Brian Golbourn, Nesrin Sabha, Megan Yijun Wu, Andrew Bondoc, Amanda Luck, Daniel Coluccia, Colin Maslink, Christian Smith, Heiko Wurdak, Kullervo Hynynen, Meaghan O'Reilly, James T Rutka
Magnetic Resonance Image-guided Focused Ultrasound (MRgFUS) has been used to achieve transient BBB opening without tissue injury. Delivery of a targeted ultrasonic wave causes an interaction between administered microbubbles and the capillary bed resulting in enhanced vessel permeability. The use of MRgFUS in the brainstem has not previously been shown but could provide value in the treatment of tumours such as Diffuse Intrinsic Pontine Glioma (DIPG) where the intact BBB has contributed to the limited success of chemotherapy...
May 10, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29752638/avoiding-complications-with-mpfl-reconstruction
#13
REVIEW
Marvin K Smith, Brian C Werner, David R Diduch
PURPOSE OF REVIEW: To discuss the potentially significant complications associated with medial patellofemoral ligament (MPFL) reconstruction. Additionally, to review the most current and relevant literature with an emphasis on avoiding these potential complications. RECENT FINDINGS: Multiple cadaveric studies have characterized the anatomy of the MPFL and the related morphologic abnormalities that contribute to recurrent lateral patellar instability. Such abnormalities include patella alta, excessive tibial tubercle to trochlear grove (TT-TG) distance, trochlear dysplasia, and malalignment...
May 12, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29752375/functional-invalidation-of-putative-sudden-infant-death-syndrome-associated-variants-in-the-kcnh2-encoded-kv11-1-channel
#14
Jennifer L Smith, David J Tester, Allison R Hall, Don E Burgess, Chun-Chun Hsu, Samy Claude Elayi, Corey L Anderson, Craig T January, Jonathan Z Luo, Dustin N Hartzel, Uyenlinh L Mirshahi, Michael F Murray, Tooraj Mirshahi, Michael J Ackerman, Brian P Delisle
BACKGROUND: Heterologous functional validation studies of putative long-QT syndrome subtype 2-associated variants clarify their pathological potential and identify disease mechanism(s) for most variants studied. The purpose of this study is to clarify the pathological potential for rare nonsynonymous KCNH2 variants seemingly associated with sudden infant death syndrome. METHODS: Genetic testing of 292 sudden infant death syndrome cases identified 9 KCNH2 variants: E90K, R181Q, A190T, G294V, R791W, P967L, R1005W, R1047L, and Q1068R...
May 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29752171/association-between-furosemide-exposure-and-patent-ductus-arteriosus-in-hospitalized-infants-of-very-low-birth-weight
#15
Elizabeth J Thompson, Rachel G Greenberg, Karan Kumar, Matthew Laughon, P Brian Smith, Reese H Clark, Andromeda Crowell, Layla Shaw, Louis Harrison, Gabrielle Scales, Nicole Bell, Christoph P Hornik
OBJECTIVE: To evaluate the association between furosemide exposure and patent ductus arteriosus (PDA) in a large, contemporary cohort of hospitalized infants with very low birth weight (VLBW). STUDY DESIGN: Using the Pediatrix Medical Group Clinical Data Warehouse, we identified all inborn infants of VLBW <37 weeks of gestation discharged from the neonatal intensive care unit after the first postnatal week from 2011 to 2015. We defined PDA as any medical (ibuprofen or indomethacin) or surgical PDA therapy...
May 8, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29749852/ecoevo-maps-an-ecology-and-evolution-assessment-for-introductory-through-advanced-undergraduates
#16
Mindi M Summers, Brian A Couch, Jennifer K Knight, Sara E Brownell, Alison J Crowe, Katharine Semsar, Christian D Wright, Michelle K Smith
A new assessment tool, Ecology and Evolution-Measuring Achievement and Progression in Science or EcoEvo-MAPS, measures student thinking in ecology and evolution during an undergraduate course of study. EcoEvo-MAPS targets foundational concepts in ecology and evolution and uses a novel approach that asks students to evaluate a series of predictions, conclusions, or interpretations as likely or unlikely to be true given a specific scenario. We collected evidence of validity and reliability for EcoEvo-MAPS through an iterative process of faculty review, student interviews, and analyses of assessment data from more than 3000 students at 34 associate's-, bachelor's-, master's-, and doctoral-granting institutions...
June 2018: CBE Life Sciences Education
https://www.readbyqxmd.com/read/29742306/a-defined-and-flexible-pocket-explains-aryl-substrate-promiscuity-by-the-cahuitamycin-starter-unit-activating-enzyme-cahj
#17
David H Sherman, Ashootosh Tripathi, Sung Ryeol Park, Andrew Sikkema, Hyo Je Cho, Jianfeng Wu, Brian Lee, Chuanwu Xi, Janet L Smith
Cahuitamycins are biofilm inhibitors biosynthesized by a convergent NRPS pathway. Previous genetic analysis indicated that a discrete enzyme, CahJ, serves as a gatekeeper for cahuitamycin structural diversification. Herein, the CahJ protein was probed structurally, functionally and through mutasynthesis. This analysis enabled production of a new cahuitamycin congener through targeted precursor incorporation.
May 9, 2018: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29742102/attenuation-and-efficacy-of-live-attenuated-rift-valley-fever-virus-vaccine-candidates-in-non-human-primates
#18
Darci R Smith, Sara C Johnston, Ashley Piper, Miriam Botto, Ginger Donnelly, Joshua Shamblin, César G Albariño, Lisa E Hensley, Connie Schmaljohn, Stuart T Nichol, Brian H Bird
Rift Valley fever virus (RVFV) is an important mosquito-borne veterinary and human pathogen that has caused large outbreaks of severe disease throughout Africa and the Arabian Peninsula. Currently, no licensed vaccine or therapeutics exists to treat this potentially deadly disease. The explosive nature of RVFV outbreaks and the severe consequences of its accidental or intentional introduction into RVFV-free areas provide the impetus for the development of novel vaccine candidates for use in both livestock and humans...
May 9, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29741715/forward-surgical-team-experience-fste-is-associated-with-increased-confidence-with-combat-surgeon-trauma-skills
#19
D Joshua Mancini, Brian P Smith, Travis M Polk, C William Schwab
Introduction: Little is known regarding the confidence of military surgeons prior to combat zone deployment. Military surgeons are frequently deployed without peers experienced in combat surgery. We hypothesized that forward surgical team experience (FSTE) increases surgeon confidence with critical skill sets. Methods: We conducted a national survey of military affiliated personnel. We used a novel survey instrument that was piloted and validated by experienced military surgeons to collect demographics, education, practice patterns, and confidence parameters for trauma and surgical critical care skills...
May 8, 2018: Military Medicine
https://www.readbyqxmd.com/read/29741665/evaluation-of-prep-eligibility-criteria-using-sexually-transmissible-infections-as-hiv-risk-markers-at-enrolment-in-prepx-a-large-australian-hiv-pre-exposure-prophylaxis-trial
#20
Vincent J Cornelisse, Christopher K Fairley, Mark Stoove, Jason Asselin, Eric P F Chow, Brian Price, Norman J Roth, Jeff Willcox, B K Tee, Matthew Penn, Christina C Chang, Judith Armishaw, George Forgan-Smith, Edwina J Wright
Background: The PrEPX trial provided HIV pre-exposure prophylaxis (PrEP) to 2600 people in Victoria, Australia. To determine participants' HIV risk, PrEPX used six eligibility criteria derived from the Australian PrEP guidelines, based on the CDC PrEP guidelines. Participants who fulfilled no eligibility criteria could be enrolled if clinically assessed to need PrEP. This study evaluated whether PREPX eligibility criteria correlated with biological HIV risk markers, namely syphilis, anorectal chlamydia or anorectal gonorrhoea (STIs)...
May 7, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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