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Christopher fletcher

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https://www.readbyqxmd.com/read/28728604/target-d-a-stratified-individually-randomized-controlled-trial-of-the-diamond-clinical-prediction-tool-to-triage-and-target-treatment-for-depressive-symptoms-in-general-practice-study-protocol-for-a-randomized-controlled-trial
#1
Jane Gunn, Caroline Wachtler, Susan Fletcher, Sandra Davidson, Cathrine Mihalopoulos, Victoria Palmer, Kelsey Hegarty, Amy Coe, Elizabeth Murray, Christopher Dowrick, Gavin Andrews, Patty Chondros
BACKGROUND: Depression is a highly prevalent and costly disorder. Effective treatments are available but are not always delivered to the right person at the right time, with both under- and over-treatment a problem. Up to half the patients presenting to general practice report symptoms of depression, but general practitioners have no systematic way of efficiently identifying level of need and allocating treatment accordingly. Therefore, our team developed a new clinical prediction tool (CPT) to assist with this task...
July 20, 2017: Trials
https://www.readbyqxmd.com/read/28691436/viral-kinetics-in-untreated-versus-treated-acute-hiv-infection-in-prospective-cohort-studies-in-thailand
#2
Jintanat Ananworanich, Leigh Anne Eller, Suteeraporn Pinyakorn, Eugene Kroon, Somchai Sriplenchan, James Lk Fletcher, Duanghathai Suttichom, Christopher Bryant, Rapee Trichavaroj, Peter Dawson, Nelson Michael, Nittaya Phanuphak, Merlin L Robb
INTRODUCTION: The extent of viral replication during acute HIV infection (AHI) influences HIV disease progression. However, information comparing viral load (VL) kinetics with and without antiretroviral therapy (ART) in AHI is limited. The knowledge gained could inform preventive strategies aimed at reducing VL during AHI and therapeutic strategies to alter the viral kinetics that may enhance the likelihood of achieving HIV remission. METHODS: The analysis utilized VL data captured during the first year of HIV infection from two studies in Thailand: the RV217 study (untreated AHI, 30 participants and 412 visits) and the RV254 study (treated AHI, 235 participants and 2803 visits)...
June 26, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28659934/morphological-plant-modeling-unleashing-geometric-and-topological-potential-within-the-plant-sciences
#3
REVIEW
Alexander Bucksch, Acheampong Atta-Boateng, Akomian F Azihou, Dorjsuren Battogtokh, Aly Baumgartner, Brad M Binder, Siobhan A Braybrook, Cynthia Chang, Viktoirya Coneva, Thomas J DeWitt, Alexander G Fletcher, Malia A Gehan, Diego Hernan Diaz-Martinez, Lilan Hong, Anjali S Iyer-Pascuzzi, Laura L Klein, Samuel Leiboff, Mao Li, Jonathan P Lynch, Alexis Maizel, Julin N Maloof, R J Cody Markelz, Ciera C Martinez, Laura A Miller, Washington Mio, Wojtek Palubicki, Hendrik Poorter, Christophe Pradal, Charles A Price, Eetu Puttonen, John B Reese, Rubén Rellán-Álvarez, Edgar P Spalding, Erin E Sparks, Christopher N Topp, Joseph H Williams, Daniel H Chitwood
The geometries and topologies of leaves, flowers, roots, shoots, and their arrangements have fascinated plant biologists and mathematicians alike. As such, plant morphology is inherently mathematical in that it describes plant form and architecture with geometrical and topological techniques. Gaining an understanding of how to modify plant morphology, through molecular biology and breeding, aided by a mathematical perspective, is critical to improving agriculture, and the monitoring of ecosystems is vital to modeling a future with fewer natural resources...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28637556/pretrauma-functional-independence-measure-score-predicts-survival-in-geriatric-trauma
#4
Brian Fletcher, Eric Bradburn, Christopher Baker, Bryan Collier, Mark Hamill, Katherine Shaver
The Functional Independence Measure (FIM) is used by rehabilitation professionals to access disability. The FIM score combines both motor and cognitive parameters to assess a patient's level of required assistance in performing activities of daily living (ADL). The geriatric trauma patient is becoming an increasingly important cohort for trauma services. FIM has been shown to predict discharge outcomes and those at high risk for falls. We hypothesized pretrauma FIM scores may predict survival in the geriatric trauma population...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28633111/drought-avoiding-plants-with-low-water-use-can-achieve-high-rainfall-retention-without-jeopardising-survival-on-green-roofs
#5
Christopher Szota, Claire Farrell, Nicholas S G Williams, Stefan K Arndt, Tim D Fletcher
Green roofs are increasingly being used among the suite of tools designed to reduce the volume of surface water runoff generated by cities. Plants provide the primary mechanism for restoring the rainfall retention capacity of green roofs, but selecting plants with high water use is likely to increase drought stress. Using empirically-derived plant physiological parameters, we used a water balance model to assess the trade-off between rainfall retention and plant drought stress under a 30-year climate scenario...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28618612/simon-s-fundamental-rich-get-richer-model-entails-a-dominant-first-mover-advantage
#6
Peter Sheridan Dodds, David Rushing Dewhurst, Fletcher F Hazlehurst, Colin M Van Oort, Lewis Mitchell, Andrew J Reagan, Jake Ryland Williams, Christopher M Danforth
Herbert Simon's classic rich-get-richer model is one of the simplest empirically supported mechanisms capable of generating heavy-tail size distributions for complex systems. Simon argued analytically that a population of flavored elements growing by either adding a novel element or randomly replicating an existing one would afford a distribution of group sizes with a power-law tail. Here, we show that, in fact, Simon's model does not produce a simple power-law size distribution as the initial element has a dominant first-mover advantage, and will be overrepresented by a factor proportional to the inverse of the innovation probability...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28610254/three-new-macropsini-hemiptera-cicadellidae-leafhopper-species-from-australia
#7
Liyuan Yang, Christopher H Dietrich, Yalin Zhang
Three new species, Macropsella recta, Toropsis minuspina and Varicopsella apecurvata spp. nov. are described and illustrated from Australia.       Leafhoppers of the subfamily Macropsinae are found abundantly in the Holarctic, Oriental and Australian regions (Linnavuori, 1978) and have been collected from around the world, except for Antarctica, Oceania and South America (Hamilton, 1980). Both Hamilton (1980) and Evans (1966) suggested that there were likely a myriad of uncollected and undescribed species in Australia alone and Evans (1971) commented that the Macropsinae are possibly more abundant in Australia than anywhere else in the world...
June 2, 2017: Zootaxa
https://www.readbyqxmd.com/read/28598434/genome-wide-association-study-identifies-multiple-risk-loci-for-renal-cell-carcinoma
#8
Ghislaine Scelo, Mark P Purdue, Kevin M Brown, Mattias Johansson, Zhaoming Wang, Jeanette E Eckel-Passow, Yuanqing Ye, Jonathan N Hofmann, Jiyeon Choi, Matthieu Foll, Valerie Gaborieau, Mitchell J Machiela, Leandro M Colli, Peng Li, Joshua N Sampson, Behnoush Abedi-Ardekani, Celine Besse, Helene Blanche, Anne Boland, Laurie Burdette, Amelie Chabrier, Geoffroy Durand, Florence Le Calvez-Kelm, Egor Prokhortchouk, Nivonirina Robinot, Konstantin G Skryabin, Magdalena B Wozniak, Meredith Yeager, Gordana Basta-Jovanovic, Zoran Dzamic, Lenka Foretova, Ivana Holcatova, Vladimir Janout, Dana Mates, Anush Mukeriya, Stefan Rascu, David Zaridze, Vladimir Bencko, Cezary Cybulski, Eleonora Fabianova, Viorel Jinga, Jolanta Lissowska, Jan Lubinski, Marie Navratilova, Peter Rudnai, Neonila Szeszenia-Dabrowska, Simone Benhamou, Geraldine Cancel-Tassin, Olivier Cussenot, Laura Baglietto, Heiner Boeing, Kay-Tee Khaw, Elisabete Weiderpass, Borje Ljungberg, Raviprakash T Sitaram, Fiona Bruinsma, Susan J Jordan, Gianluca Severi, Ingrid Winship, Kristian Hveem, Lars J Vatten, Tony Fletcher, Kvetoslava Koppova, Susanna C Larsson, Alicja Wolk, Rosamonde E Banks, Peter J Selby, Douglas F Easton, Paul Pharoah, Gabriella Andreotti, Laura E Beane Freeman, Stella Koutros, Demetrius Albanes, Satu Männistö, Stephanie Weinstein, Peter E Clark, Todd L Edwards, Loren Lipworth, Susan M Gapstur, Victoria L Stevens, Hallie Carol, Matthew L Freedman, Mark M Pomerantz, Eunyoung Cho, Peter Kraft, Mark A Preston, Kathryn M Wilson, J Michael Gaziano, Howard D Sesso, Amanda Black, Neal D Freedman, Wen-Yi Huang, John G Anema, Richard J Kahnoski, Brian R Lane, Sabrina L Noyes, David Petillo, Bin Tean Teh, Ulrike Peters, Emily White, Garnet L Anderson, Lisa Johnson, Juhua Luo, Julie Buring, I-Min Lee, Wong-Ho Chow, Lee E Moore, Christopher Wood, Timothy Eisen, Marc Henrion, James Larkin, Poulami Barman, Bradley C Leibovich, Toni K Choueiri, G Mark Lathrop, Nathaniel Rothman, Jean-Francois Deleuze, James D McKay, Alexander S Parker, Xifeng Wu, Richard S Houlston, Paul Brennan, Stephen J Chanock
Previous genome-wide association studies (GWAS) have identified six risk loci for renal cell carcinoma (RCC). We conducted a meta-analysis of two new scans of 5,198 cases and 7,331 controls together with four existing scans, totalling 10,784 cases and 20,406 controls of European ancestry. Twenty-four loci were tested in an additional 3,182 cases and 6,301 controls. We confirm the six known RCC risk loci and identify seven new loci at 1p32.3 (rs4381241, P=3.1 × 10(-10)), 3p22.1 (rs67311347, P=2.5 × 10(-8)), 3q26...
June 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28551330/histopathologic-evaluation-of-atypical-neurofibromatous-tumors-and-their-transformation-into-malignant-peripheral-nerve-sheath-tumor-in-neurofibromatosis-1-patients-a-consensus-overview
#9
Markku M Miettinen, Cristina R Antonescu, Christopher D M Fletcher, Aerang Kim, Alexander J Lazar, Martha M Quezado, Karlyne M Reilly, Anat Stemmer-Rachamimov, Douglas R Stewart, David Viskochil, Brigitte Widemann, Arie Perry
Neurofibromatosis 1 (NF1) patients develop multiple neurofibromas, with 8-15% of patients experiencing malignant peripheral nerve sheath tumor (MPNST) during their lifetime. Prediction of transformation, typically from plexiform neurofibroma, is clinically and histologically challenging. In this overview, following a consensus meeting in October 2016, we outline the histopathologic features and molecular mechanisms involved in the malignant trans-formation of neurofibromas. Nuclear atypia alone is generally insignificant...
May 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/28512850/in-situ-handheld-3d-bioprinting-for-cartilage-regeneration
#10
Claudia Di Bella, Serena Duchi, Cathal D O'Connell, Romane Blanchard, Cheryl Augustine, Zhilian Yue, Fletcher Thompson, Christopher Richards, Stephen Beirne, Carmine Onofrillo, Sebastien H Bauquier, Stewart D Ryan, Peter Pivonka, Gordon G Wallace, Peter F Choong
Articular cartilage injuries experienced at an early age can lead to the development of osteoarthritis later in life. In situ 3D printing is an exciting and innovative bio-fabrication technology that enables the surgeon to deliver tissue- engineering techniques at the time and location of need. We have created a hand- held 3D printing device (Biopen) that allows the simultaneous co-axial extrusion of bioscaffold and cultured cells directly into the cartilage defect in vivo in a single session surgery. This pilot study assesses the ability of the Biopen to repair a full thickness chondral defect and the early outcomes in cartilage regeneration, and compares these results to other treatments in a large animal model...
May 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28505006/myopericytomatosis-clinicopathologic-analysis-of-11-cases-with-molecular-identification-of-recurrent-pdgfrb-alterations-in-myopericytomatosis-and-myopericytoma
#11
Yin P Hung, Christopher D M Fletcher
Myopericytoma is a benign tumor of concentrically distributed perivascular myoid cells. Its molecular basis and relationship with myofibroma/myofibromatosis and other pericytic tumors are not fully understood. In our consultation/surgical files of over 1000 myopericytic lesions, we identified 11 cases with diffuse dermal/subcutaneous involvement by microscopic myopericytomatous nodules, a phenomenon we have termed myopericytomatosis. Myopericytomatosis affected mostly adults (female:male=8:3; median age, 37 y; range, 9 to 63 y) in the lower extremities (foot/ankle, 5; calf, 3; knee, 1; thigh, 1; neck, 1) over months to 25 years, ranging from 1...
August 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28505004/a-subset-of-malignant-mesotheliomas-in-young-adults-are-associated-with-recurrent-ewsr1-fus-atf1-fusions
#12
Patrice Desmeules, Philippe Joubert, Lei Zhang, Hikmat A Al-Ahmadie, Christopher D Fletcher, Efsevia Vakiani, Deborah F Delair, Natasha Rekhtman, Marc Ladanyi, William D Travis, Cristina R Antonescu
Malignant mesothelioma (MM) is a rare, aggressive tumor often associated with asbestos exposure and characterized by complex genetic abnormalities, including deletions of chromosome 22. A gene fusion involving EWSR1 and YY1 gene on 14q32 has been reported in 2 patients over the age of 60 with peritoneal MM. However, the incidence of EWSR1 rearrangements in MM and the spectrum of its fusion partners remain unknown. We recently encountered 2 MM cases with EWSR1-ATF1 fusions and sought to investigate the prevalence and clinicopathologic features associated with this abnormality...
July 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28498505/autosomal-dominant-frontometaphyseal-dysplasia-delineation-of-the-clinical-phenotype
#13
Emma M Wade, Zandra A Jenkins, Philip B Daniel, Tim Morgan, Marie C Addor, Lesley C Adés, Debora Bertola, Axel Bohring, Erin Carter, Tae-Joon Cho, Christa M de Geus, Hans-Christoph Duba, Elaine Fletcher, Kinga Hadzsiev, Raoul C M Hennekam, Chong A Kim, Deborah Krakow, Eva Morava, Teresa Neuhann, David Sillence, Andrea Superti-Furga, Hermine E Veenstra-Knol, Dagmar Wieczorek, Louise C Wilson, David M Markie, Stephen P Robertson
Frontometaphyseal dysplasia (FMD) is caused by gain-of-function mutations in the X-linked gene FLNA in approximately 50% of patients. Recently we characterized an autosomal dominant form of FMD (AD-FMD) caused by mutations in MAP3K7, which accounts for the condition in the majority of patients who lack a FLNA mutation. We previously also described a patient with a de novo variant in TAB2, which we hypothesized was causative of another form of AD-FMD. In this study, a cohort of 20 individuals with AD-FMD is clinically evaluated...
May 12, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28463157/histologic-appearance-after-preoperative-radiation-therapy-for-soft-tissue-sarcoma-assessment-of-the-european-organization-for-research-and-treatment-of-cancer-soft-tissue-and-bone-sarcoma-group-response-score
#14
Inga-Marie Schaefer, Jason L Hornick, Constance M Barysauskas, Chandrajit P Raut, Sagar A Patel, Trevor J Royce, Christopher D M Fletcher, Elizabeth H Baldini
PURPOSE: To critically assess the prognostic value of the European Organization for Research and Treatment of Cancer-Soft Tissue and Bone Sarcoma Group (EORTC-STBSG) response score and define histologic appearance after preoperative radiation therapy (RT) for soft tissue sarcoma (STS). METHODS AND MATERIALS: For a cohort of 100 patients with STS of the extremity/trunk treated at our institution with preoperative RT followed by resection, 2 expert sarcoma pathologists evaluated the resected specimens for percent residual viable cells, necrosis, hyalinization/fibrosis, and infarction...
June 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28462517/learning-from-redd-a-response-to-fletcher-et-al
#15
Arild Angelsen, Maria Brockhaus, Amy E Duchelle, Anne Larson, Christopher Martius, William D Sunderlin, Louis Verchot, Grace Wong, Sven Wunder
No abstract text is available yet for this article.
June 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28368924/smarcb1-ini1-loss-in-epithelioid-schwannoma-a-clinicopathologic-and-immunohistochemical-study-of-65-cases
#16
Vickie Y Jo, Christopher D M Fletcher
The epithelioid variant of schwannoma is rare, and loss of SMARCB1/INI1 expression has been observed in a subset of cases. Our aim was to further define the clinicopathologic features and to evaluate SMARCB1/INI1 deficiency in a large cohort of 65 epithelioid schwannomas diagnosed between 2002 and 2015, which consisted of 32 men and 33 women with median age at diagnosis of 45 years (range, 13 to 75 y). Most tumors arose in the extremities (upper, 20, lower, 15) and trunk (17); 9 were visceral (8 gastrointestinal)...
August 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28346326/sarcomas-with-cic-rearrangements-are-a-distinct-pathologic-entity-with-aggressive-outcome-a-clinicopathologic-and-molecular-study-of-115-cases
#17
Cristina R Antonescu, Adepitan A Owosho, Lei Zhang, Sonja Chen, Kemal Deniz, Joseph M Huryn, Yu-Chien Kao, Shih-Chiang Huang, Samuel Singer, William Tap, Inga-Marie Schaefer, Christopher D Fletcher
CIC-DUX4 gene fusion, resulting from either a t(4;19) or t(10;19) translocation, is the most common genetic abnormality detected in EWSR1-negative small blue round cell tumors. Following their discovery it was debated if these tumors should be classified as variants of Ewing sarcoma (ie, atypical Ewing sarcoma) or as a stand-alone pathologic entity. As such the WHO classification temporarily grouped the CIC-rearranged tumors under undifferentiated sarcomas with round cell phenotype, until further clinical evidence was available...
July 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28337592/head-and-neck-round-cell-sarcomas-a-comparative-clinicopathologic-analysis-of-2-molecular-subsets-ewing-and-cic-rearranged-sarcomas
#18
Adepitan A Owosho, Cherry L Estilo, Joseph M Huryn, Lei Zhang, Christopher D M Fletcher, Cristina R Antonescu
CIC-rearranged sarcoma (CRS) is a relatively new entity defined by its pathognomonic genetic signature and undifferentiated round cell phenotype, initially grouped together with the 'Ewing sarcoma-like tumors'. However, increasing data suggest that these tumors should be regarded as a stand-alone pathologic entity. We conducted a clinicopathologic analysis on molecularly conformed Ewing sarcoma (ES) and CRS arising in the head and neck (HN) and compared to a well characterized cohort of ES and CRS from other locations...
March 23, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28292859/-18-f-fluoride-and-18-f-fluorodeoxyglucose-positron-emission-tomography-after-transient-ischemic-attack-or-minor-ischemic-stroke-case-control-study
#19
COMPARATIVE STUDY
Alex T Vesey, William S A Jenkins, Agnese Irkle, Alastair Moss, Greg Sng, Rachael O Forsythe, Tim Clark, Gemma Roberts, Alison Fletcher, Christophe Lucatelli, James H F Rudd, Anthony P Davenport, Nicholas L Mills, Rustam Al-Shahi Salman, Martin Dennis, William N Whiteley, Edwin J R van Beek, Marc R Dweck, David E Newby
BACKGROUND: Combined positron emission tomography (PET) and computed tomography (CT) can assess both anatomy and biology of carotid atherosclerosis. We sought to assess whether (18)F-fluoride or (18)F-fluorodeoxyglucose can identify culprit and high-risk carotid plaque. METHODS AND RESULTS: We performed (18)F-fluoride and (18)F-fluorodeoxyglucose PET/CT in 26 patients after recent transient ischemic attack or minor ischemic stroke: 18 patients with culprit carotid stenosis awaiting carotid endarterectomy and 8 controls without culprit carotid atheroma...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28270683/max-inactivation-is-an-early-event-in-gist-development-that-regulates-p16-and-cell-proliferation
#20
Inga-Marie Schaefer, Yuexiang Wang, Cher-Wei Liang, Nacef Bahri, Anna Quattrone, Leona Doyle, Adrian Mariño-Enríquez, Alexandra Lauria, Meijun Zhu, Maria Debiec-Rychter, Susanne Grunewald, Jaclyn F Hechtman, Armelle Dufresne, Cristina R Antonescu, Carol Beadling, Ewa T Sicinska, Matt van de Rijn, George D Demetri, Marc Ladanyi, Christopher L Corless, Michael C Heinrich, Chandrajit P Raut, Sebastian Bauer, Jonathan A Fletcher
KIT, PDGFRA, NF1 and SDH mutations are alternate initiating events, fostering hyperplasia in gastrointestinal stromal tumours (GISTs), and additional genetic alterations are required for progression to malignancy. The most frequent secondary alteration, demonstrated in ∼70% of GISTs, is chromosome 14q deletion. Here we report hemizygous or homozygous inactivating mutations of the chromosome 14q MAX gene in 16 of 76 GISTs (21%). We find MAX mutations in 17% and 50% of sporadic and NF1-syndromic GISTs, respectively, and we find loss of MAX protein expression in 48% and 90% of sporadic and NF1-syndromic GISTs, respectively, and in three of eight micro-GISTs, which are early GISTs...
March 8, 2017: Nature Communications
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