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https://www.readbyqxmd.com/read/28221373/ecological-restoration-soil-microbes-call-the-shots
#1
Robert H Marrs
No abstract text is available yet for this article.
August 2, 2016: Nature Plants
https://www.readbyqxmd.com/read/28218899/prospective-identification-of-hematopoietic-lineage-choice-by-deep-learning
#2
Felix Buggenthin, Florian Buettner, Philipp S Hoppe, Max Endele, Manuel Kroiss, Michael Strasser, Michael Schwarzfischer, Dirk Loeffler, Konstantinos D Kokkaliaris, Oliver Hilsenbeck, Timm Schroeder, Fabian J Theis, Carsten Marr
Differentiation alters molecular properties of stem and progenitor cells, leading to changes in their shape and movement characteristics. We present a deep neural network that prospectively predicts lineage choice in differentiating primary hematopoietic progenitors using image patches from brightfield microscopy and cellular movement. Surprisingly, lineage choice can be detected up to three generations before conventional molecular markers are observable. Our approach allows identification of cells with differentially expressed lineage-specifying genes without molecular labeling...
February 20, 2017: Nature Methods
https://www.readbyqxmd.com/read/28203054/uveal-melanoma-epidemiology-etiology-and-treatment-of-primary-disease
#3
REVIEW
Benjamin A Krantz, Nikita Dave, Kimberly M Komatsubara, Brian P Marr, Richard D Carvajal
Uveal melanoma (UM) is the most common intraocular malignancy and arises from melanocytes in the iris, ciliary body, or choroid. Early diagnosis and local treatment is crucial, as survival correlates with primary tumor size. However, approximately 50% of patients will develop metastatic disease with 6-12 months' survival from metastatic diagnosis. Genomic analyses have led to the development of gene-expression profiles that effectively predict metastatic progression; unfortunately, no adjuvant therapy has been shown to prolong survival to date...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28198357/cgcorrect-a-method-to-correct-for-confounding-cell-cell-variation-due-to-cell-growth-in-single-cell-transcriptomics
#4
Thomas Blasi, Florian Buettner, Michael Strasser, Carsten Marr, Fabian Theis
MOTIVATION: Accessing gene expression at the single cell level has unraveled often large heterogeneity among seemingly homogeneous cells, which remained obscured in traditional population based approaches. The computational analysis of single-cell transcriptomics data, however, still imposes unresolved challenges with respect to normalization, visualization and modeling the data. One such issue are differences in cell size, which introduce additional variability into the data, for which appropriate normalization techniques are needed...
February 15, 2017: Physical Biology
https://www.readbyqxmd.com/read/28197133/metatranscriptomics-reveals-the-active-bacterial-and-eukaryotic-fibrolytic-communities-in-the-rumen-of-dairy-cow-fed-a-mixed-diet
#5
Sophie Comtet-Marre, Nicolas Parisot, Pascale Lepercq, Frédérique Chaucheyras-Durand, Pascale Mosoni, Eric Peyretaillade, Ali R Bayat, Kevin J Shingfield, Pierre Peyret, Evelyne Forano
Ruminants have a unique ability to derive energy from the degradation of plant polysaccharides through the activity of the rumen microbiota. Although this process is well studied in vitro, knowledge gaps remain regarding the relative contribution of the microbiota members and enzymes in vivo. The present study used RNA-sequencing to reveal both the expression of genes encoding carbohydrate-active enzymes (CAZymes) by the rumen microbiota of a lactating dairy cow and the microorganisms forming the fiber-degrading community...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28176463/severe-chronic-norovirus-diarrheal-disease-in-transplant-recipients-clinical-features-of-an-under-recognized-syndrome
#6
Robin K Avery, Bonnie E Lonze, Edward S Kraus, Kieren A Marr, Robert A Montgomery
BACKGROUND: Norovirus (NV) infection has been reported as a cause of severe chronic diarrhea in transplant recipients, but this entity remains under-recognized in clinical practice, leading to diagnostic delays. Transplant clinicians should become familiar with this syndrome in order to facilitate early detection and management. METHODS: Demographic, clinical, and outcomes variables were summarized from a series of transplant recipients with positive stool NV reverse transcription polymerase chain reaction (RT-PCR) assays at Johns Hopkins in 2013-2014...
February 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28174115/antioxidant-and-antigenotoxic-potential-of-ramaria-largentii-marr-d-e-stuntz-a-wild-edible-mushroom-collected-from-northeast-romania
#7
Ana Clara Aprotosoaie, Daniela Elena Zavastin, Cosmin-Teodor Mihai, Gabriela Voichita, Daniela Gherghel, Mihaela Silion, Adriana Trifan, Anca Miron
Ramaria largentii Marr & D. E. Stuntz (orange coral mushroom) is a wild edible mushroom whose chemical composition and bioactivity have not been investigated. Herein, we present a study on the phenolic constituents, antioxidant and antigenotoxic effects of a hydromethanolic extract of the fruiting bodies. Total phenolic content, estimated by Folin-Ciocalteu assay, was found to be 42.33 ± 0.18 mg GAE/g. Protocatechuic and vanillic acids were detected by HPLC-DAD-ESI-MS. The extract showed good free radical scavenging and reducing capacities (EC50 = 64...
February 4, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28169881/side-effects-and-tolerability-of-combination-blood-pressure-lowering-according-to-blood-pressure-levels-an-analysis-of-the-perindopril-protection-against-recurrent-stroke-study-and-action-in-diabetes-and-vascular-disease-preterax-and-diamicron-mr-controlled
#8
Emily R Atkins, Yoichiro Hirakawa, Abdul Salam, Mark Woodward, Mark Cooper, Pavel Hamet, Stephen Harrap, Kennedy Lees, Lisheng Liu, Giuseppe Mancia, Michel Marre, Vlado Perkovic, Neil Poulter, Bryan Williams, John Chalmers, Anthony Rodgers
OBJECTIVE: To measure the placebo-controlled effects of combination therapy on hypotension, treatment discontinuation, and major renal outcomes, according to baseline blood pressure. METHODS: We conducted an analysis of the action in diabetes and vascular disease: preterax and diamicron-MR controlled evaluation and perindopril protection against recurrent stroke study trials, including 14 684 participants allocated combination therapy or placebo. The mean age was 65 years, 61% were men, and 64% were receiving background blood pressure lowering (BPL) therapy...
February 6, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28165464/genome-wide-association-analysis-implicates-dysregulation-of-immunity-genes-in-chronic-lymphocytic-leukaemia
#9
Philip J Law, Sonja I Berndt, Helen E Speedy, Nicola J Camp, Georgina P Sava, Christine F Skibola, Amy Holroyd, Vijai Joseph, Nicola J Sunter, Alexandra Nieters, Silvia Bea, Alain Monnereau, David Martin-Garcia, Lynn R Goldin, Guillem Clot, Lauren R Teras, Inés Quintela, Brenda M Birmann, Sandrine Jayne, Wendy Cozen, Aneela Majid, Karin E Smedby, Qing Lan, Claire Dearden, Angela R Brooks-Wilson, Andrew G Hall, Mark P Purdue, Tryfonia Mainou-Fowler, Claire M Vajdic, Graham H Jackson, Pierluigi Cocco, Helen Marr, Yawei Zhang, Tongzhang Zheng, Graham G Giles, Charles Lawrence, Timothy G Call, Mark Liebow, Mads Melbye, Bengt Glimelius, Larry Mansouri, Martha Glenn, Karen Curtin, W Ryan Diver, Brian K Link, Lucia Conde, Paige M Bracci, Elizabeth A Holly, Rebecca D Jackson, Lesley F Tinker, Yolanda Benavente, Paolo Boffetta, Paul Brennan, Marc Maynadie, James McKay, Demetrius Albanes, Stephanie Weinstein, Zhaoming Wang, Neil E Caporaso, Lindsay M Morton, Richard K Severson, Elio Riboli, Paolo Vineis, Roel C H Vermeulen, Melissa C Southey, Roger L Milne, Jacqueline Clavel, Sabine Topka, John J Spinelli, Peter Kraft, Maria Grazia Ennas, Geoffrey Summerfield, Giovanni M Ferri, Robert J Harris, Lucia Miligi, Andrew R Pettitt, Kari E North, David J Allsup, Joseph F Fraumeni, James R Bailey, Kenneth Offit, Guy Pratt, Henrik Hjalgrim, Chris Pepper, Stephen J Chanock, Chris Fegan, Richard Rosenquist, Silvia de Sanjose, Angel Carracedo, Martin J S Dyer, Daniel Catovsky, Elias Campo, James R Cerhan, James M Allan, Nathanial Rothman, Richard Houlston, Susan Slager
Several chronic lymphocytic leukaemia (CLL) susceptibility loci have been reported; however, much of the heritable risk remains unidentified. Here we perform a meta-analysis of six genome-wide association studies, imputed using a merged reference panel of 1,000 Genomes and UK10K data, totalling 6,200 cases and 17,598 controls after replication. We identify nine risk loci at 1p36.11 (rs34676223, P=5.04 × 10(-13)), 1q42.13 (rs41271473, P=1.06 × 10(-10)), 4q24 (rs71597109, P=1.37 × 10(-10)), 4q35.1 (rs57214277, P=3...
February 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28155905/multipath-colourimetric-assay-for-copper-ii-ions-utilizing-marr-functionalized-gold-nanoparticles
#10
Yulong Wang, Limin Wang, Zhenhe Su, Juanjuan Xue, Jinbo Dong, Cunzheng Zhang, Xiude Hua, Minghua Wang, Fengquan Liu
We use the multiple antibiotic resistance regulator (MarR), as a highly selective biorecognition elements in a multipath colourimetric sensing strategy for the fast detection of Cu(2+) in water samples. The colourimetric assay is based on the aggregation of MarR-coated gold nanoparticles in the presence of Cu(2+) ions, which induces a red-to-purple colour change of the solution. The colour variation in the gold nanoparticle aggregation process can be used for qualitative and quantitative detection of Cu(2+) by the naked eye, and with UV-vis and smartphone-based approaches...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28153505/three-cases-of-erdheim-chester-disease-with-intraocular-manifestations-imaging-and-histopathology-findings-of-a-rare-entity
#11
Anna C S Tan, Suzanne Yzer, Neal Atebara, Brian P Marr, Robert M Verdijk, Virgil A S H Dalm, K Bailey Freund, Lawrence Yannuzzi, Tom Missotten
PURPOSE: To report intraocular manifestations of ECD with multimodal imaging. DESIGN: A retrospective observational case series. METHODS: This was a multi-center case series of three patients with confirmed tissue diagnosis of ECD that showed intraocular manifestations and were imaged at baseline and follow-up visits. RESULTS: Intraocular manifestations are rarely observed in association with Erdheim-Chester disease (ECD)...
January 30, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28147693/inverse-collimated-proton-radiography-for-imaging-thin-materials
#12
Matthew S Freeman, Jason Allison, Malcolm Andrews, Eric Ferm, John J Goett, Kris Kwiatkowski, Julian Lopez, Fesseha Mariam, Mark Marr-Lyon, Michael Martinez, Jason Medina, Patrick Medina, Frank E Merrill, Chris L Morris, Matthew M Murray, Paul Nedrow, Levi P Neukirch, Katherine Prestridge, Paolo Rigg, Alexander Saunders, Tamsen Schurman, Amy Tainter, Frans Trouw, Dale Tupa, Josh Tybo, Wendy Vogan-McNeil, Carl Wilde
Relativistic, magnetically focused proton radiography was invented at Los Alamos National Laboratory using the 800 MeV LANSCE beam and is inherently well-suited to imaging dense objects, at areal densities >20 g cm(-2). However, if the unscattered portion of the transmitted beam is removed at the Fourier plane through inverse-collimation, this system becomes highly sensitive to very thin media, of areal densities <100 mg cm(-2). Here, this inverse-collimation scheme is described in detail and demonstrated by imaging Xe gas with a shockwave generated by an aluminum plate compressing the gas at Mach 8...
January 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28140579/adsorption-of-phthalates-on-impervious-indoor-surfaces
#13
Yaoxing Wu, Clara M A Eichler, Weinan Leng, Steven S Cox, Linsey C Marr, John C Little
Sorption of semivolatile organic compounds (SVOCs) onto interior surfaces, often referred to as the "sink effect", and their subsequent re-emission significantly affect the fate and transport of indoor SVOCs and the resulting human exposure. Unfortunately, experimental challenges and the large number of SVOC/surface combinations have impeded progress in understanding sorption of SVOCs on indoor surfaces. An experimental approach based on a diffusion model was thus developed to determine the surface/air partition coefficient K of di-2-ethylhexyl phthalate (DEHP) on typical impervious surfaces including aluminum, steel, glass, and acrylic...
February 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28125778/aerosolization-of-ebola-virus-surrogates-in-wastewater-systems
#14
Kaisen Lin, Linsey C Marr
Recent studies have shown that Ebola virus can persist in wastewater. We evaluated the potential for Ebola virus surrogates to be aerosolized from three types of wastewater systems: toilets, a lab-scale model of an aeration basin, and a lab-scale model of converging sewer pipes. We measured the aerosol size distribution generated by each system, spiked Ebola virus surrogates (MS2 and Phi6) into each system, and determined the emission rate of viruses into the air. The number of aerosols released ranged from 10(5) to 10(7) per flush from the toilets or per minute from the lab-scale models, and the total volume of aerosols generated by these systems was ∼10(-9) to 10(-7) mL per flush or per minute in all cases...
February 10, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28124121/structural-characterization-of-the-dna-binding-mechanism-underlying-the-copper-ii-sensing-marr-transcriptional-regulator
#15
Rongfeng Zhu, Ziyang Hao, Hubing Lou, Yanqun Song, Jingyi Zhao, Yuqing Chen, Jiuhe Zhu, Peng R Chen
Multiple antibiotic resistance regulator (MarR) family proteins are widely conserved transcription factors that control bacterial resistance to antibiotics, environmental stresses, as well as the regulation of virulence determinants. Escherichia coli MarR, the prototype member of this family, has recently been shown to undergo copper(II)-catalyzed inter-dimer disulfide bond formation via a unique cysteine residue (Cys80) residing in its DNA-binding domain. However, despite extensive structural characterization of the MarR family proteins, the structural mechanism for DNA binding of this copper(II)-sensing MarR factor remains elusive...
January 25, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/28122141/large-pore-functionalized-mesoporous-silica-nanoparticles-as-drug-delivery-vector-for-a-highly-cytotoxic-hybrid-platinum-acridine-anticancer-agent
#16
Ye Zheng, Cale Fahrenholtz, Christopher Hackett, Song Ding, Cynthia Day, Rohan Dhall, Glen Marrs, Michael Gross, Ravi Singh, Ulrich Bierbach
Large-pore mesoporous silica nanoparticles (MSN) were prepared and functionalized to serve as a highly robust and biocompatible delivery platform for platinum-acridine (PA) anticancer agents. The material showed a high loading capacity for the dicationic, hydrophilic hybrid agent [PtCl(en)(N-[acridin-9-ylaminoethyl]-N-methylpropionamidine)] dinitrate salt (P1A1) and virtually complete retention of payload at neutral pH in a high-chloride buffer. In acidic media mimicking the pH inside the cells' lysosomes, rapid, burst-like release of P1A1 from the nanoparticles is observed...
January 25, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28121888/worldwide-testing-of-the-eface-facial-nerve-clinician-graded-scale
#17
Caroline A Banks, Nathan Jowett, Babak Azizzadeh, Carien Beurskens, Prabhat Bhama, Gregory Borschel, Christopher Coombs, Susan Coulson, Glen Croxon, Jaqueline Diels, Adel Fattah, Manfred Frey, Javier Gavilan, Douglas Henstrom, Marc Hohman, Jennifer Kim, Henri Marres, Richard Redett, Alison Snyder-Warwick, Tessa Hadlock
BACKGROUND: The electronic, clinician-graded facial function scale (eFACE) is a potentially useful tool for assessing facial function. Beneficial features include its digital nature, use of visual analogue scales, and provision of graphic outputs and scores. The authors introduced the instrument to experienced facial nerve clinicians for feedback, and examined the effect of viewing a video tutorial on score agreement. METHODS: Videos of 30 patients with facial palsy were embedded in an Apple eFACE application...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28112928/transformation-of-cerium-oxide-nanoparticles-from-a-diesel-fuel-additive-during-combustion-in-a-diesel-engine
#18
James G Dale, Steven S Cox, Marina E Vance, Linsey C Marr, Michael F Hochella
Nanoscale cerium oxide is used as a diesel fuel additive to reduce particulate matter emissions and increase fuel economy, but its fate in the environment has not been established. Cerium oxide released as a result of the combustion of diesel fuel containing the additive Envirox, which utilizes suspended nanoscale cerium oxide to reduce particulate matter emissions and increase fuel economy, was captured from the exhaust stream of a diesel engine and was characterized using a combination of bulk analytical techniques and high resolution transmission electron microscopy...
February 8, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28095092/ophthalmic-artery-chemosurgery-for-eyes-with-advanced-retinoblastoma
#19
David H Abramson, Armida W M Fabius, Jasmine H Francis, Brian P Marr, Ira J Dunkel, Scott E Brodie, Anna Escuder, Y Pierre Gobin
BACKGROUND: Surgical removal of one or both eyes has been the most common way to treat children with retinoblastoma worldwide for more than 100 years. Ophthalmic artery chemosurgery (OAC) was introduced 10 years ago and it has been used as an alternative to enucleation for eyes with advanced retinoblastoma. The purpose of this report is to analyze our 9-year experience treating advanced retinoblastoma eyes with OAC. MATERIALS AND METHODS: Single-arm retrospective study from a single center of 226 eyes with eyes of retinoblastoma patients with advanced intraocular disease defined as both Reese-Ellsworth (RE) "Va" or "Vb" and International Classification Retinoblastoma (ICRb) group "D" or "E" (COG Classification)...
January 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28092395/intraocular-pressure-changes-following-intravitreal-melphalan-and-topotecan-for-the-treatment-of-retinoblastoma-with-vitreous-seeding
#20
Matthew D Karl, Jasmine H Francis, Saipriya Iyer, Brian Marr, David H Abramson
PURPOSE: To investigate the impact of intravitreal chemotherapy on intraocular pressure (IOP) in children with retinoblastoma. METHODS: This was a retrospective study of 10 eyes of 10 patients with retinoblastoma (7 males, 3 females, mean age: 33.6 ± 9.4 months) with vitreous seeding injected with intravitreal melphalan and topotecan. IOP was measured with Tono-pen (Reichert, Inc., Buffalo, NY) at baseline prior to injecting and then repeatedly following each intravitreal injection...
January 13, 2017: Journal of Pediatric Ophthalmology and Strabismus
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