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https://www.readbyqxmd.com/read/28329140/the-impact-of-frailty-on-patient-centered-outcomes-following-aortic-valve-replacement
#1
Brian R Kotajarvi, Marissa J Schafer, Elizabeth J Atkinson, Megan M Traynor, Charles J Bruce, Kevin L Greason, Rakesh M Suri, Jordan D Miller, Nathan K LeBrasseur
Background: Frailty confers risk for surgical morbidity and mortality. Whether patient-reported measures of health, well-being, or quality of life respond differently to surgery in non-frail and frail individuals is unknown. Methods: Older adults with severe aortic stenosis presenting for surgery were assessed for frailty using Cardiovascular Health Study Criteria. Patient-reported measures of functional capacity (Duke Activity Status Index [DASI]), physical and mental health (Medical Outcomes Study Short Form-Physical and Mental Component Scales [SF-12 PCS and SF-12 MCS, respectively]), well-being (linear analogue self-assessment [LASA]), and quality of life (LASA) were administered before and 3 months after surgery...
March 10, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28329096/diffuse-white-matter-signal-abnormalities-on-magnetic-resonance-imaging-are-associated-with-human-immunodeficiency-virus-type-1-viral-escape-in-the-central-nervous-system-among-patients-with-neurological-symptoms
#2
Ruthiran Kugathasan, Dami A Collier, Lewis J Haddow, Kate El Bouzidi, Simon G Edwards, Jonathan D Cartledge, Robert F Miller, Ravindra K Gupta
Background.: Human immunodeficiency virus type 1 (HIV-1) can replicate independently in extravascular compartments such as the central nervous system, resulting in either cerebrospinal fluid (CSF) discordance (viral load [VL] in CSF 0.5 log10 copies HIV-1 RNA greater than plasma VL) or escape (detection of HIV VL >50 copies/mL in CSF in patients with suppressed plasma VL <50 copies/mL). Both discordance and escape may be associated with neurological symptoms. We explored risk factors for CSF discordance and escape in patients presenting with diverse neurological problems...
March 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329030/protective-factors-in-the-intestinal-microbiome-against-clostridium-difficile-infection-in-recipients-of-allogeneic-hematopoietic-stem-cell-transplantation
#3
Yeon Joo Lee, Esther P Arguello, Robert R Jenq, Eric Littmann, Grace J Kim, Liza C Miller, Lilan Ling, Cesar Figueroa, Elizabeth Robilotti, Miguel-Angel Perales, Juliet N Barker, Sergio Giralt, Marcel R M van den Brink, Eric G Pamer, Ying Taur
Background.: Clostridium difficile infection (CDI) is a frequent complication in recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT), who receive intensive treatments that significantly disrupt the intestinal microbiota. In this study, we examined the microbiota composition of allo-HSCT recipients to identify bacterial colonizers that confer protection against CDI following engraftment. Methods.: Feces collected from adult recipients allo-HSCT at engraftment were analyzed; 16S rRNA genes were sequenced and analyzed from each sample...
January 30, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328947/a-spontaneous-mutation-in-kdsd-a-biosynthesis-gene-for-3-deoxy-d-manno-octulosonic-acid-occurred-in-a-ciprofloxacin-resistant-strain-of-francisella-tularensis-and-caused-a-high-level-of-attenuation-in-murine-models-of-tularemia
#4
Taylor Chance, Jennifer Chua, Ronald G Toothman, Jason T Ladner, Jonathan E Nuss, Jo Lynne Raymond, Fabrice V Biot, Samandra Demons, Lynda Miller, Stephanie Halasohoris, Sherry Mou, Galina Koroleva, Sean Lovett, Gustavo Palacios, Nicholas J Vietri, Patricia L Worsham, Christopher K Cote, Todd M Kijek, Joel A Bozue
Francisella tularensis, a gram-negative facultative intracellular bacterial pathogen, is the causative agent of tularemia and able to infect many mammalian species, including humans. Because of its ability to cause a lethal infection, low infectious dose, and aerosolizable nature, F. tularensis subspecies tularensis is considered a potential biowarfare agent. Due to its in vitro efficacy, ciprofloxacin is one of the antibiotics recommended for post-exposure prophylaxis of tularemia. In order to identify therapeutics that will be efficacious against infections caused by drug resistant select-agents and to better understand the threat, we sought to characterize an existing ciprofloxacin resistant (CipR) mutant in the Schu S4 strain of F...
2017: PloS One
https://www.readbyqxmd.com/read/28328943/structurally-detailed-coarse-grained-model-for-sec-facilitated-co-translational-protein-translocation-and-membrane-integration
#5
Michiel J M Niesen, Connie Y Wang, Reid C Van Lehn, Thomas F Miller
We present a coarse-grained simulation model that is capable of simulating the minute-timescale dynamics of protein translocation and membrane integration via the Sec translocon, while retaining sufficient chemical and structural detail to capture many of the sequence-specific interactions that drive these processes. The model includes accurate geometric representations of the ribosome and Sec translocon, obtained directly from experimental structures, and interactions parameterized from nearly 200 μs of residue-based coarse-grained molecular dynamics simulations...
March 22, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28328741/sagittal-plane-parameters-in-growing-rod-patients-following-final-fusion
#6
Robert F Murphy, John B Emans, Michael Troy, Patricia E Miller, Michael T Hresko, Lawrence I Karlin, Daniel J Hedequist, Michael P Glotzbecker
Almost half of growing rod (GR) patients that undergo final fusion (FF) have an extension of instrumented levels. The purpose of this study was to review sagittal plane radiographic parameters of patients with distal extension of instrumented levels at FF to those whose levels remained the same. Radiographs were assessed preoperatively, after GR insertion/first lengthening, following GR treatment before FFs, and after FF. Measurements included sagittal balance, lumbar lordosis, thoracic kyphosis, and distal junction angle (DJA)...
March 21, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28328629/clinical-biomechanical-and-anatomic-investigation-of-colles-fascia-and-pubic-ramus-periosteum-for-use-during-medial-thighplasty
#7
Martin J Carney, Tim Matatov, Matthew Freeman, John Miller, Rahul Vemula, Jason Schuster, Michael Dancisak, John Lindsey, Guenevere Rae
INTRODUCTION: The medial thighplasty is a procedure where patients may attain superior mobility, hygiene, and cosmesis. Most surgeons use attachment of the superficial fascial system (SFS) of the thigh flap to the Colles fascia, whereas others attach the SFS to the pubic ramus periosteum. Because of a high complication profile, we aim to elucidate the clinical, biomechanical, and anatomic qualities of the Colles fascia versus the pubic ramus periosteum. MATERIALS AND METHODS: We performed a 17-year retrospective review documenting clinical complications, a biomechanical analysis of sutures placed in different tissue layers of the thigh, and a histologic analysis surrounding the ischiopubic ramus...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28325782/aibp-limits-angiogenesis-thorough-%C3%AE-secretase-mediated-upregulation-of-notch-signaling
#8
Renfang Mao, Shu Meng, Qilin Gu, Raquel Araujo-Gutierrez, Sandeep Kumar, Qing Yan, Felicidad Almazan, Keith A Youker, Yingbin Fu, Henry J Pownall, John P Cooke, Yury I Miller, Longhou Fang
Rationale: Angiogenesis improves perfusion to the ischemic tissue following acute vascular obstruction. Angiogenesis in pathophysiological settings reactivates signaling pathways involved in developmental angiogenesis. We showed previously that apoA-I binding protein (AIBP)-regulated cholesterol efflux in endothelial cells (ECs) controls zebrafish embryonic angiogenesis. Objective: This study is to determine whether loss of AIBP affects angiogenesis in mice during development and under pathological conditions, and to explore the underlying molecular mechanism...
March 21, 2017: Circulation Research
https://www.readbyqxmd.com/read/28325551/patient-related-risk-factors-for-infection-following-knee-arthroscopy-an-analysis-of-over-700-000-patients-from-two-large-databases
#9
Jourdan M Cancienne, Harrison S Mahon, Ian J Dempsey, Mark D Miller, Brian C Werner
BACKGROUND: To determine patient-related risk factors for infection following knee arthroscopy using two large databases. METHODS: A private-payer (PP) and Medicare national insurance database were queried for patients undergoing simple knee arthroscopy procedures from 2005 to 2015. Patients undergoing concomitant open or complex procedures with grafts were excluded. Postoperative infection within 90days was assessed using ICD-9 and CPT codes. A multivariate logistic regression analysis was utilized to evaluate patient-related risk factors for postoperative infection...
March 18, 2017: Knee
https://www.readbyqxmd.com/read/28323831/genetic-assessment-of-age-associated-alzheimer-disease-risk-development-and-validation-of-a-polygenic-hazard-score
#10
Rahul S Desikan, Chun Chieh Fan, Yunpeng Wang, Andrew J Schork, Howard J Cabral, L Adrienne Cupples, Wesley K Thompson, Lilah Besser, Walter A Kukull, Dominic Holland, Chi-Hua Chen, James B Brewer, David S Karow, Karolina Kauppi, Aree Witoelar, Celeste M Karch, Luke W Bonham, Jennifer S Yokoyama, Howard J Rosen, Bruce L Miller, William P Dillon, David M Wilson, Christopher P Hess, Margaret Pericak-Vance, Jonathan L Haines, Lindsay A Farrer, Richard Mayeux, John Hardy, Alison M Goate, Bradley T Hyman, Gerard D Schellenberg, Linda K McEvoy, Ole A Andreassen, Anders M Dale
BACKGROUND: Identifying individuals at risk for developing Alzheimer disease (AD) is of utmost importance. Although genetic studies have identified AD-associated SNPs in APOE and other genes, genetic information has not been integrated into an epidemiological framework for risk prediction. METHODS AND FINDINGS: Using genotype data from 17,008 AD cases and 37,154 controls from the International Genomics of Alzheimer's Project (IGAP Stage 1), we identified AD-associated SNPs (at p < 10-5)...
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28323819/development-of-an-adaptive-personalized-and-scalable-dementia-care-program-early-findings-from-the-care-ecosystem
#11
Katherine L Possin, Jennifer Merrilees, Stephen J Bonasera, Alissa Bernstein, Winston Chiong, Kirby Lee, Leslie Wilson, Sarah M Hooper, Sarah Dulaney, Tamara Braley, Sutep Laohavanich, Julie E Feuer, Amy M Clark, Michael W Schaffer, A Katrin Schenk, Julia Heunis, Paulina Ong, Kristen M Cook, Angela D Bowhay, Rosalie Gearhart, Anna Chodos, Georges Naasan, Andrew B Bindman, Daniel Dohan, Christine Ritchie, Bruce L Miller
Katherine Possin and colleagues report on the implementation, development, and early findings of the Care Ecosystem, an adaptive, personalized, and scalable dementia care program.
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28322704/transmission-of-hepatitis-a-virus-through-combined-liver-small-intestine-pancreas-transplantation
#12
Monique A Foster, Lauren M Weil, Sherry Jin, Thomas Johnson, Tonya R Hayden-Mixson, Yury Khudyakov, Pallavi D Annambhotla, Sridhar V Basavaraju, Saleem Kamili, Jana M Ritter, Noele Nelson, George Mazariegos, Michael Green, Ryan W Himes, David T Kuhar, Matthew J Kuehnert, Jeffrey A Miller, Rachel Wiseman, Anne C Moorman
Although transmission of hepatitis A virus (HAV) through blood transfusion has been documented, transmission through organ transplantation has not been reported. In August 2015, state health officials in Texas, USA, were notified of 2 home health nurses with HAV infection whose only common exposure was a child who had undergone multi-visceral organ transplantation 9 months earlier. Specimens from the nurses, organ donor, and all organ recipients were tested and medical records reviewed to determine a possible infection source...
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28322270/huntington-s-disease-blood-and-brain-show-a-common-gene-expression-pattern-and-share-an-immune-signature-with-alzheimer-s-disease
#13
Davina J Hensman Moss, Michael D Flower, Kitty K Lo, James R C Miller, Gert-Jan B van Ommen, Peter A C 't Hoen, Timothy C Stone, Amelia Guinee, Douglas R Langbehn, Lesley Jones, Vincent Plagnol, Willeke M C van Roon-Mom, Peter Holmans, Sarah J Tabrizi
There is widespread transcriptional dysregulation in Huntington's disease (HD) brain, but analysis is inevitably limited by advanced disease and postmortem changes. However, mutant HTT is ubiquitously expressed and acts systemically, meaning blood, which is readily available and contains cells that are dysfunctional in HD, could act as a surrogate for brain tissue. We conducted an RNA-Seq transcriptomic analysis using whole blood from two HD cohorts, and performed gene set enrichment analysis using public databases and weighted correlation network analysis modules from HD and control brain datasets...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322115/lower-extremity-kinematics-of-curve-sprinting-displayed-by-runners-using-a-transtibial-prosthesis
#14
Yumeng Li, Kathy J Simpson, Lee Nolan, Marilyn Miller, Benjamin Johnson
The purpose of the study was to determine if the kinematics exhibited by skilled runners wearing a unilateral, transtibial prosthesis during the curve section of a 200-m sprint race were influenced by interaction of limb-type (prosthetic limb (PROS-L) vs. nonprosthetic limb (NONPROS-L)) and curve-side (inside and outside limb relative to the centre of the curve). Step kinematics, toe clearance and knee and hip flexion/extension, hip ab/adduction for one stride of each limb were generated from video of 13 males running the curve during an international 200 m transtibial-classified competition...
March 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28321993/metatropic-dysplasia-a-skeletal-dysplasia-with-challenging-airway-and-other-anesthetic-concerns
#15
Mary C Theroux, Martha Lopez, Patricia J Olszewsky, Sabina DiCindio, Lynda Arai, Colleen Ditro, Michael B Bober, Olubukola Opeyemi Olla, Tetsu Uejima, David W West, William G Mackenzie
BACKGROUND: Metatropic dysplasia is a rare form of skeletal dysplasia requiring multiple anesthetics for surgical and imaging procedures, most of which are orthopedic procedures. We provide centralized care to patients with skeletal dysplasia at our tertiary care pediatric hospital, and we were able to collect the largest number of metatropic dysplasia patients reported to date. AIM: The aim of this retrospective study was to describe and characterize the anesthetic difficulties in this high-risk population...
March 21, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28321140/y-site-incompatibility-between-premix-concentrations-of-vancomycin-and-piperacillin-tazobactam-do-current-compatibility-testing-methodologies-tell-the-whole-story
#16
Wesley D Kufel, Christopher D Miller, Paul R Johnson, Kaleigh Reid, James J Zahra, Robert W Seabury
Background: Published literature has demonstrated commercially available premix vancomycin (5 mg/mL) and piperacillin-tazobactam (67.5 mg/mL) as physically compatible via simulated Y-site methodology. Compatibility via actual Y-site infusion has yet to be established. Objective: To assess and compare the compatibility of commercially available premix concentrations of vancomycin and piperacillin-tazobactam via simulated and actual Y-site evaluation. Methods: Vancomycin and piperacillin-tazobactam were tested using simulated and actual Y-site infusion methodologies...
February 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/28319119/evaluating-the-combined-effects-of-ballast-water-management-and-trade-dynamics-on-transfers-of-marine-organisms-by-ships
#17
Katharine J Carney, Mark S Minton, Kimberly K Holzer, A Whitman Miller, Linda D McCann, Gregory M Ruiz
Global trade by merchant ships is a leading mechanism for the unintentional transfer of marine organisms, including non-indigenous species, to bays and estuaries worldwide. To reduce the likelihood of new invasions, ships are increasingly being required to manage their ballast water (BW) prior to discharge in coastal waters. In the United States, most overseas arrivals have been required to manage BW discharge since 2004, primarily through ballast water exchange (BWE), which flushes out ballast tanks in the open ocean (>200 miles from shore)...
2017: PloS One
https://www.readbyqxmd.com/read/28319001/impact-on-psychosocial-outcomes-of-a-nationally-available-weight-management-program-tailored-for-individuals-with-type-2-diabetes-results-of-a-randomized-controlled-trial
#18
Lauren Holland-Carter, Peter W Tuerk, Thomas A Wadden, Ken N Fujioka, Lynne E Becker, Karen Miller-Kovach, Priscilla L Hollander, W Timothy Garvey, Daniel Weiss, Domenica M Rubino, Robert F Kushner, Robert J Malcolm, William J Raum, Kathie L Hermayer, Jan L Veliko, Stephanie L Rost, Nicoleta D Sora, Jonny L Salyer, Patrick M O'Neil
AIMS: Type 2 diabetes mellitus (T2DM) can substantially decrease quality of life (QOL). This study examined the effects on QOL-relevant psychosocial measures of a widely available commercial weight loss program enhanced for individuals with T2DM. METHODS: A year-long multi-site randomized clinical trial compared the Weight Watchers (WW) approach, supplemented with phone and email counseling with a certified diabetes educator (CDE), to brief standard diabetes nutrition counseling and education (Standard Care; SC)...
February 16, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28318435/determining-zebrafish-epitope-reactivity-to-commercially-available-antibodies
#19
Michael A Villarreal, Nicole M Biediger, Natalie A Bonner, Jennifer N Miller, Samantha K Zepeda, Benjamin J Ricard, Dana M García, Karen A Lewis
Antibodies raised against mammalian proteins may exhibit cross-reactivity with zebrafish proteins, making these antibodies useful for fish studies. However, zebrafish may express multiple paralogues of similar sequence and size, making them difficult to distinguish by traditional Western blot analysis. To identify the zebrafish proteins that are recognized by an antimammalian antibody, we developed a system to screen putative epitopes by cloning the sequences between the yeast SUMO protein and a C-terminal 6xHis tag...
March 20, 2017: Zebrafish
https://www.readbyqxmd.com/read/28317544/analysis-of-phylogeny-distribution-and-pathogenicity-of-botryosphaeriaceae-species-associated-with-gummosis-of-anacardium-in-brazil-with-a-new-species-of-lasiodiplodia
#20
Mariote S B Netto, Waléria G Lima, Kamila C Correia, Christiana F B da Silva, Michael Thon, Ricardo B Martins, Robert N G Miller, Sami J Michereff, Marcos P S Câmara
Netto, M. S. B., Lima, W. G., Correia, K. C., da Silva, C. F. B., Thon, M., Martins, R. B., Miller, R. N. G., Michereff, S. J., and Câmara, M. P. S. 2016. Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia. We identified Botryosphaeriaceae species associated with gummosis on Anacardium in Brazil. Isolates were sampled and identified on the basis morphology and phylogeny, through analysis of a partial translation elongation factor 1-α sequence, ribosomal DNA internal transcribed spacers, and β-tubulin gene sequence...
April 2017: Fungal Biology
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