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https://www.readbyqxmd.com/read/28198351/therapeutic-drug-monitoring-guided-raltegravir-dosing-for-prevention-of-vertical-transmission-in-a-premature-neonate-born-to-a-woman-living-with-perinatally-acquired-hiv
#1
Denise Kreutzwiser, Nancy Sheehan, Natalie Dayneka, Benoît Lemire, Alison Wong, Lindy Samson, Jason Brophy
We report a case of therapeutic drug monitoring guided raltegravir use for the prevention of vertical HIV transmission in a premature neonate born to a woman living with perinatally acquired HIV and documented resistance to multiple HIV drugs. Maternal viral load was above 1,000 copies/mL at delivery. This case demonstrates delayed raltegravir elimination in a neonate born at 33 weeks gestational age and a need for less frequent raltegravir dosing than is used in older infants and children.
February 15, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28196534/comparative-genomics-reveals-high-biological-diversity-and-specific-adaptations-in-the-industrially-and-medically-important-fungal-genus-aspergillus
#2
Ronald P de Vries, Robert Riley, Ad Wiebenga, Guillermo Aguilar-Osorio, Sotiris Amillis, Cristiane Akemi Uchima, Gregor Anderluh, Mojtaba Asadollahi, Marion Askin, Kerrie Barry, Evy Battaglia, Özgür Bayram, Tiziano Benocci, Susanna A Braus-Stromeyer, Camila Caldana, David Cánovas, Gustavo C Cerqueira, Fusheng Chen, Wanping Chen, Cindy Choi, Alicia Clum, Renato Augusto Corrêa Dos Santos, André Ricardo de Lima Damásio, George Diallinas, Tamás Emri, Erzsébet Fekete, Michel Flipphi, Susanne Freyberg, Antonia Gallo, Christos Gournas, Rob Habgood, Matthieu Hainaut, María Laura Harispe, Bernard Henrissat, Kristiina S Hildén, Ryan Hope, Abeer Hossain, Eugenia Karabika, Levente Karaffa, Zsolt Karányi, Nada Kraševec, Alan Kuo, Harald Kusch, Kurt LaButti, Ellen L Lagendijk, Alla Lapidus, Anthony Levasseur, Erika Lindquist, Anna Lipzen, Antonio F Logrieco, Andrew MacCabe, Miia R Mäkelä, Iran Malavazi, Petter Melin, Vera Meyer, Natalia Mielnichuk, Márton Miskei, Ákos P Molnár, Giuseppina Mulé, Chew Yee Ngan, Margarita Orejas, Erzsébet Orosz, Jean Paul Ouedraogo, Karin M Overkamp, Hee-Soo Park, Giancarlo Perrone, Francois Piumi, Peter J Punt, Arthur F J Ram, Ana Ramón, Stefan Rauscher, Eric Record, Diego Mauricio Riaño-Pachón, Vincent Robert, Julian Röhrig, Roberto Ruller, Asaf Salamov, Nadhira S Salih, Rob A Samson, Erzsébet Sándor, Manuel Sanguinetti, Tabea Schütze, Kristina Sepčić, Ekaterina Shelest, Gavin Sherlock, Vicky Sophianopoulou, Fabio M Squina, Hui Sun, Antonia Susca, Richard B Todd, Adrian Tsang, Shiela E Unkles, Nathalie van de Wiele, Diana van Rossen-Uffink, Juliana Velasco de Castro Oliveira, Tammi C Vesth, Jaap Visser, Jae-Hyuk Yu, Miaomiao Zhou, Mikael R Andersen, David B Archer, Scott E Baker, Isabelle Benoit, Axel A Brakhage, Gerhard H Braus, Reinhard Fischer, Jens C Frisvad, Gustavo H Goldman, Jos Houbraken, Berl Oakley, István Pócsi, Claudio Scazzocchio, Bernhard Seiboth, Patricia A vanKuyk, Jennifer Wortman, Paul S Dyer, Igor V Grigoriev
BACKGROUND: The fungal genus Aspergillus is of critical importance to humankind. Species include those with industrial applications, important pathogens of humans, animals and crops, a source of potent carcinogenic contaminants of food, and an important genetic model. The genome sequences of eight aspergilli have already been explored to investigate aspects of fungal biology, raising questions about evolution and specialization within this genus. RESULTS: We have generated genome sequences for ten novel, highly diverse Aspergillus species and compared these in detail to sister and more distant genera...
February 14, 2017: Genome Biology
https://www.readbyqxmd.com/read/28192233/use-of-ontology-structure-and-bayesian-models-to-aid-the-crowdsourcing-of-icd-11-sanctioning-rules
#3
Yun Lou, Samson W Tu, Csongor Nyulas, Tania Tudorache, Robert J G Chalmers, Mark A Musen
The International Classification of Diseases (ICD) is the de facto standard international classification for mortality reporting and for many epidemiological, clinical, and financial use cases. The next version of ICD, ICD-11, will be submitted for approval by the World Health Assembly in 2018. Unlike previous versions of ICD, where coders mostly select single codes from pre-enumerated disease and disorder codes, ICD-11 coding will allow extensive use of multiple codes to give more detailed disease descriptions...
February 10, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28188333/use-of-modern-tomato-breeding-germplasm-for-deciphering-the-genetic-control-of-agronomical-traits-by-genome-wide-association-study
#4
Guillaume Bauchet, Stéphane Grenier, Nicolas Samson, Julien Bonnet, Laurent Grivet, Mathilde Causse
A panel of 300 tomato accessions including breeding materials was built and characterized with >11,000 SNP. A population structure in six subgroups was identified. Strong heterogeneity in linkage disequilibrium and recombination landscape among groups and chromosomes was shown. GWAS identified several associations for fruit weight, earliness and plant growth. Genome-wide association studies (GWAS) have become a method of choice in quantitative trait dissection. First limited to highly polymorphic and outcrossing species, it is now applied in horticultural crops, notably in tomato...
February 10, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28188302/vesicular-acetylcholine-transporter-defect-underlies-devastating-congenital-myasthenia-syndrome
#5
Adi Aran, Reeval Segel, Kota Kaneshige, Suleyman Gulsuner, Paul Renbaum, Scott Oliphant, Tomer Meirson, Ariella Weinberg-Shukron, Yair Hershkovitz, Sharon Zeligson, Ming K Lee, Abraham O Samson, Stanley M Parsons, Mary-Claire King, Ephrat Levy-Lahad, Tom Walsh
OBJECTIVE: To identify the genetic basis of a recessive congenital neurologic syndrome characterized by severe hypotonia, arthrogryposis, and respiratory failure. METHODS: Identification of the responsible gene by exome sequencing and assessment of the effect of the mutation on protein stability in transfected rat neuronal-like PC12(A123.7) cells. RESULTS: Two brothers from a nonconsanguineous Yemeni Jewish family manifested at birth with severe hypotonia and arthrogryposis...
February 10, 2017: Neurology
https://www.readbyqxmd.com/read/28181718/segmented-sleep-in-a-nonelectric-small-scale-agricultural-society-in-madagascar
#6
David R Samson, Melissa B Manus, Andrew D Krystal, Efe Fakir, James J Yu, Charles L Nunn
OBJECTIVES: We studied sleep in a rural population in Madagascar to (i) characterize sleep in an equatorial small-scale agricultural population without electricity, (ii) assess whether sleep is linked to noise levels in a dense population, and (iii) examine the effects of experimentally introduced artificial light on sleep timing. METHODS: Using actigraphy, sleep-wake patterns were analyzed for both daytime napping and nighttime wakefulness in 21 participants for a sum total of 292 days...
February 9, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28175486/359%C3%A2-delayed-treatment-of-ruptured-arteriovenous-malformations-is-it-ok-to-wait
#7
Jeffrey S Beecher, Awais Vance, Kristopher Allen Lyon, Vin Shen Ban, Cameron Michael McDougall, Louis A Whitworth, Jonathan A White, Duke S Samson, H Hunt Batjer, Babu Guai Welch
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28175374/115%C3%A2-the-southwestern-aneurysm-scoring-index-prediction-of-outcomes-at-1-year-in-ruptured-aneurysms-treated-with-microsurgery
#8
Vin Shen Ban, Jeffrey S Beecher, Christopher S Eddleman, Salah G Aoun, Kristopher Allen Lyon, Tarek Youssef El Ahmadieh, Cameron Michael McDougall, Babu Guai Welch, Joan Reisch, H Hunt Batjer, Duke S Samson, Jonathan A White
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28165751/dna-nanostructure-sequence-dependent-binding-of-organophosphates
#9
Yingning Gao, Samson Or, Aaron Toop, Ian Wheeldon
Understanding the molecular interactions between small molecules and double-stranded DNA has important implications on the design and development of DNA and DNA-protein nanomaterials. Such materials can be assembled into a vast array of 1-, 2-, and 3D structures that contain a range of chemical and physical features where small molecules can bind via intercalation, groove binding, and electrostatics. In this work, we use a series of simulation-guided binding assays and spectroscopy techniques to investigate the binding of selected organophosphtates, methyl parathion, paraoxon, their common enzyme hydrolysis product p-nitrophenol, and double-stranded DNA fragments and DNA DX tiles, a basic building block of DNA-based materials...
February 16, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28154163/less-than-ideal-cardiovascular-health-is-associated-with-shorter-leukocyte-telomere-length-the-national-health-and-nutrition-examination-surveys-1999-2002
#10
Samson Y Gebreab, Zerai G Manna, Rumana J Khan, Pia Riestra, Ruihua Xu, Sharon K Davis
BACKGROUND: The associations between individual cardiovascular disease risk factors and leukocyte telomere length (LTL) have been inconclusive. We investigated the association between LTL and overall cardiovascular health (CVH) as defined by the American Heart Association and whether the association is modified by sex and race/ethnicity. METHODS AND RESULTS: We included 5194 adults (aged ≥20) from the National Health and Nutrition Examination Survey 1999-2002...
February 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28152131/a-comparative-study-of-the-precision-of-carstens-and-northern-digital-instruments-electromagnetic-articulographs
#11
Christophe Savariaux, Pierre Badin, Adeline Samson, Silvain Gerber
Purpose: This study compares the precision of the electromagnetic articulographs used in speech research: Northern Digital Instruments' Wave and Carstens' AG200, AG500, and AG501 systems. Method: The fluctuation of distances between 3 pairs of sensors attached to a manually rotated device that can position them inside the measurement volumes was determined. For each device, 2 precision estimates made on the basis of the 95% quantile range of these distances (QR95) were defined: The local QR95 was computed for bins around specific rotation angles, and the global QR95 was computed for all angles pooled...
February 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28142207/fc%C3%AE-receptor-expression-on-splenic-macrophages-in-adult-immune-thrombocytopenia
#12
Sylvain Audia, Kim Santegoets, Annemieke G Laarhoven, Gestur Vidarsson, Olivier Facy, Pablo Ortega-Deballon, Maxime Samson, Nona Janikashvili, Philippe Saas, Bernard Bonnotte, Timothy Radstake
Splenic macrophages play a key role in immune thrombocytopenia (ITP) pathogenesis by clearing opsonized platelets. Fcγ receptors (FcγR) participate to this phenomenon but their expression on splenic macrophages and their modulation by treatments have scarcely been studied in human ITP. We aimed to compare the phenotype and function of splenic macrophages, between six controls and 24 ITP patients, and between ITP patients according to the treatments they received prior to splenectomy. CD86, HLA-DR and FcγR expression were measured by flow cytometry on splenic macrophages...
January 31, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28125554/o-006-rapid-infliximab-infusion-in-children-with-inflammatory-bowel-disease-a-multi-center-north-american-experience
#13
Wael El-Matary, Charles Samson, Alisa Crim, Sabina Ali, Andrew Grossman
BACKGROUND: Infusions of infliximab (IFX), a chimeric monoclonal antibody against tumor necrosis factor alpha (TNF-α) used to treat inflammatory bowel disease (IBD), can lead to development of anti-IFX antibodies (ATI), increasing risk of subsequent infusion reactions (IRs). IRs have been reported in as many as 5% of infusions and up to 10% to 20% of patients. The safety of rapid IFX infusion has been under-evaluated in children. In a multi-center study, the incidence of IRs associated with rapid infusion of IFX was examined...
February 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28122705/championing-regulatory-integrative-and-comparative-physiology-the-new-investigator-review-award
#14
Willis K Samson
After three full years shepherding the journal, our editorial team has debated how best to continue the broad focus and tradition of the journal and how to attract more authors. While our Impact Factor, submission rate and "time to first decision" have remained relatively stable, we recognize that just as the American Physiological Society is seeking to develop initiatives to reverse the trend of the greying of our membership, so must our journal seek to attract and encourage manuscripts from Early Stage Investigators...
January 25, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28120738/are-patients-bypassing-paediatric-cardiology-outreach-clinics
#15
Alexander Fletcher, Ray Samson, Karen McLeod
Previous studies have identified that receiving specialist care close to home can positively influence patients' experience. Despite this, a review of cardiology outpatient appointments at the Royal Hospital for Children in Glasgow demonstrated that a large number of families are bypassing their local children's cardiology centre to attend cardiac clinics at the specialist children's surgical centre. We used patient questionnaire, audit of local facilities, and examined the relationship between diagnosis and bypass numbers to better understand factors influencing this trend...
January 25, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28115629/a-novel-role-for-transcription-coupled-nucleotide-excision-repair-for-the-in-vivo-repair-of-3-n4-ethenocytosine
#16
Isaac A Chaim, Alycia Gardner, Jie Wu, Teruaki Iyama, David M Wilson, Leona D Samson
Etheno (ε) DNA base adducts are highly mutagenic lesions produced endogenously via reactions with lipid peroxidation (LPO) products. Cancer-promoting conditions, such as inflammation, can induce persistent oxidative stress and increased LPO, resulting in the accumulation of ε-adducts in different tissues. Using a recently described fluorescence multiplexed host cell reactivation assay, we show that a plasmid reporter bearing a site-specific 3,N(4)-ethenocytosine (εC) causes transcriptional blockage. Notably, this blockage is exacerbated in Cockayne Syndrome and xeroderma pigmentosum patient-derived lymphoblastoid and fibroblast cells...
January 23, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28114397/the-trypanosome-exocyst-a-conserved-structure-revealing-a-new-role-in-endocytosis
#17
Cordula M Boehm, Samson Obado, Catarina Gadelha, Alexandra Kaupisch, Paul T Manna, Gwyn W Gould, Mary Munson, Brian T Chait, Michael P Rout, Mark C Field
Membrane transport is an essential component of pathogenesis for most infectious organisms. In African trypanosomes, transport to and from the plasma membrane is closely coupled to immune evasion and antigenic variation. In mammals and fungi an octameric exocyst complex mediates late steps in exocytosis, but comparative genomics suggested that trypanosomes retain only six canonical subunits, implying mechanistic divergence. We directly determined the composition of the Trypanosoma brucei exocyst by affinity isolation and demonstrate that the parasite complex is nonameric, retaining all eight canonical subunits (albeit highly divergent at the sequence level) plus a novel essential subunit, Exo99...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28114187/nevirapine-pharmacokinetics-and-safety-in-neonates-receiving-combination-antiretroviral-therapy-for-prevention-of-vertical-hiv-transmission
#18
Elaine Lau, Jason Brophy, Lindy Samson, Fatima Kakkar, Douglas Campbell, Mark H Yudin, Kellie Murphy, Winnie Seto, David Colantonio, Stanley E Read, Ari Bitnun
BACKGROUND: Nevirapine (NVP)-based combination antiretroviral therapy (cART) is routinely prescribed to infants deemed at high risk of vertical HIV infection in our centers. We evaluated NVP pharmacokinetics and safety of this regimen. METHODS: Neonates were recruited prospectively between September 2012 and April 2015 or enrolled retrospectively if treated similarly prior to prospective study initiation. NVP was dosed at 150 mg/m daily for 14 days, then twice daily for 14 days...
January 20, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28110809/defining-the-ideal-time-interval-between-planned-induction-therapy-and-surgery-for-stage-iiia-non-small-cell-lung-cancer
#19
Pamela Samson, Traves D Crabtree, Cliff G Robinson, Daniel Morgensztern, Stephen Broderick, A Sasha Krupnick, Daniel Kreisel, G Alexander Patterson, Bryan Meyers, Varun Puri
BACKGROUND: Induction therapy leads to significant improvement in survival for selected patients with stage IIIA non-small cell lung cancer. The ideal time interval between induction therapy and surgery remains unknown. METHODS: Clinical stage IIIA non-small cell lung cancer patients receiving induction therapy and surgery were identified in the National Cancer Database. Delayed surgery was defined as greater than or equal to 3 months after starting induction therapy...
January 19, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28109569/adhering-to-quality-measures-in-esophagectomy-is-associated-with-improved-survival-in-all-stages-of-esophageal-cancer
#20
Pamela Samson, Varun Puri, Stephen Broderick, G Alexander Patterson, Bryan Meyers, Traves Crabtree
BACKGROUND: Quality measures for patients with early and locally advanced esophageal cancer undergoing esophagectomy have been made by national organizations. The rate of adherence to these measures as well as their association with overall survival are unknown. METHODS: Esophagectomy patients were abstracted from the National Cancer Database. Because neoadjuvant status was available since 2006, the analysis of locally advanced patients began at this time point...
January 18, 2017: Annals of Thoracic Surgery
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