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https://www.readbyqxmd.com/read/29336605/colorectal-carcinomas-with-isolated-loss-of-pms2-staining-by-immunohistochemistry
#1
Lindsay Alpert, Reetesh K Pai, Amitabh Srivastava, Wendy McKinnon, Rebecca Wilcox, Rhonda K Yantiss, Ramir Arcega, Hanlin L Wang, Marie E Robert, Xiuli Liu, Rish K Pai, Lei Zhao, Maria Westerhoff, Heather Hampel, Sonia Kupfer, Namrata Setia, Shu-Yuan Xiao, John Hart, Wendy L Frankel
CONTEXT: - Isolated loss of PMS2 staining is an uncommon immunophenotype in colorectal carcinomas, accounting for approximately 4% of tumors with microsatellite instability. Limited information regarding these tumors is available in the literature. OBJECTIVE: - To compare the clinicopathologic features of colorectal carcinomas with isolated PMS2 loss by immunohistochemistry to those with other forms of mismatch repair deficiency. DESIGN: - Ninety-three colorectal carcinomas with isolated PMS2 loss by immunohistochemistry and 193 with other forms of mismatch repair deficiency were identified...
January 16, 2018: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29332391/interconversion-of-methyltropyl-and-xylyl-radicals-a-pathway-unavailable-to-the-benzyl-tropyl-rearrangement
#2
Neil James Reilly, Gabriel da Silva, Callan M Wilcox, Zijun Ge, Damian L Kokkin, Tyler P Troy, Klaas Nauta, Scott H Kable, Michael C McCarthy, Timothy W Schmidt
The products of an electrical discharge containing toluene are interrogated using resonance-enhanced multiphoton ionization and laser-induced fluorescence spectroscopies. A previously unreported electronic spectrum recorded at m/z = 105, with a putative origin band at 26053 cm-1, is assigned to methyltropyl radical, which appears to be a major product of the toluene discharge, plausibly arising from CH insertion. All three o-, m- and p-xylyl isomers are also identified. These isomers are detected in electrical discharges containing various xylenes, where it is also found that interconversion occurs: A discharge of o-xylene produces some m-xylyl; a discharge of m-xylene produces some o-xylyl; and a discharge of p-xylene produces all three isomers...
January 15, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29315403/joint-associations-of-a-polygenic-risk-score-and-environmental-risk-factors-for-breast-cancer-in-the-breast-cancer-association-consortium
#3
Anja Rudolph, Minsun Song, Mark N Brook, Roger L Milne, Nasim Mavaddat, Kyriaki Michailidou, Manjeet K Bolla, Qin Wang, Joe Dennis, Amber N Wilcox, John L Hopper, Melissa C Southey, Renske Keeman, Peter A Fasching, Matthias W Beckmann, Manuela Gago-Dominguez, Jose E Castelao, Pascal Guénel, Thérèse Truong, Stig E Bojesen, Henrik Flyger, Hermann Brenner, Volker Arndt, Hiltrud Brauch, Thomas Brüning, Arto Mannermaa, Veli-Matti Kosma, Diether Lambrechts, Machteld Keupers, Fergus J Couch, Celine Vachon, Graham G Giles, Robert J MacInnis, Jonine Figueroa, Louise Brinton, Kamila Czene, Judith S Brand, Marike Gabrielson, Keith Humphreys, Angela Cox, Simon S Cross, Alison M Dunning, Nick Orr, Anthony Swerdlow, Per Hall, Paul D P Pharoah, Marjanka K Schmidt, Douglas F Easton, Nilanjan Chatterjee, Jenny Chang-Claude, Montserrat García-Closas
Background: Polygenic risk scores (PRS) for breast cancer can be used to stratify the population into groups at substantially different levels of risk. Combining PRS and environmental risk factors will improve risk prediction; however, integrating PRS into risk prediction models requires evaluation of their joint association with known environmental risk factors. Methods: Analyses were based on data from 20 studies; datasets analysed ranged from 3453 to 23 104 invasive breast cancer cases and similar numbers of controls, depending on the analysed environmental risk factor...
January 5, 2018: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29314524/current-lung-cancer-screening-practice-amongst-general-practitioners-in-western-australia-a-cross-sectional-study
#4
David Manners, Helen Wilcox, Annette McWilliams, Francesco Piccolo, Helena Liira, Fraser Brims
Lung cancer screening with low dose computed tomography (LDCT) is recommended in the USA and Canada for high-risk smokers but not in Australia. We administered a cross-sectional survey to Western Australian general practitioners (GP). The majority (64/93, 69%) reported requesting a screening chest X-ray (42/93, 45%) and/or LDCT (38/93, 41%) in the past year. LDCT screening was more common if the GP had received education from radiology practices (odds ratio (OR) 2.81, P = 0.03) or if they believed screening is funded by the Medical Benefits Scheme (OR 3...
January 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/29313167/prenatal-exposure-to-chernobyl-fallout-in-norway-neurological-and-developmental-outcomes-in-a-25-year-follow-up
#5
Rolv Terje Lie, Dag Moster, Per Strand, Allen James Wilcox
Ionizing radiation at high doses early in life may cause neurodevelopmental problems. Possible effects of lower doses are, however, controversial. We use carefully collected exposure data for Norway following the Chernobyl accident in April 1986 combined with population-based registries to assess long-term effects of fetal exposure on neurodevelopmental outcomes. Radiation doses were estimated for each Norwegian municipality for each calendar month from May 1986 to April 1989. We established a cohort of all Norwegian pregnancies during the three-year period of radiation measurement and compared them with appropriate unexposed groups...
December 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29311651/identification-of-a-novel-gene-regulating-amygdala-mediated-fear-extinction
#6
Ozge Gunduz-Cinar, Emma Brockway, Lauren Lederle, Troy Wilcox, Lindsay R Halladay, Ying Ding, Hyunjung Oh, Erica F Busch, Katie Kaugars, Shaun Flynn, Aaron Limoges, Olena Bukalo, Kathryn P MacPherson, Sophie Masneuf, Courtney Pinard, Etienne Sibille, Elissa J Chesler, Andrew Holmes
Recent years have seen advances in our understanding of the neural circuits associated with trauma-related disorders, and the development of relevant assays for these behaviors in rodents. Although inherited factors are known to influence individual differences in risk for these disorders, it has been difficult to identify specific genes that moderate circuit functions to affect trauma-related behaviors. Here, we exploited robust inbred mouse strain differences in Pavlovian fear extinction to uncover quantitative trait loci (QTL) associated with this trait...
January 8, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29305932/rifm-fragrance-ingredient-safety-assessment-3-methyl-5-2-2-3-trimethyl-3-cyclopenten-1-yl-pent-4-en-2-ol-cas-registry-number-67801-20-1
#7
A M Api, D Belsito, S Bhatia, D Botelho, D Browne, M Bruze, A Burton, J Buschmann, P Calow, M L Dagli, M Date, W Dekant, C Deodhar, A D Fryer, K Joshi, L Kromidas, S L A Cava, J F Lalko, A Lapczynski, D C Liebler, Y Miyachi, D O'Brien, R Parakhia, A Patel, T M Penning, V T Politano, G Ritacco, J Romine, D Salvito, T W Schultz, J Shen, I G Sipes, Y Thakkar, Y Tokura, S Tsang, J Wahler, B Wall, D K Wilcox
No abstract text is available yet for this article.
January 3, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29261567/association-between-partial-pressure-of-arterial-carbon-dioxide-and-survival-to-hospital-discharge-among-patients-diagnosed-with-sepsis-in-the-emergency-department
#8
Brian W Roberts, Nicholas M Mohr, Enyo Ablordeppey, Anne M Drewry, Ian T Ferguson, Stephen Trzeciak, Marin H Kollef, Brian M Fuller
OBJECTIVE: The objective of this study was to test the association between the partial pressure of arterial carbon dioxide and survival to hospital discharge among mechanically ventilated patients diagnosed with sepsis in the emergency department. DESIGN: Retrospective cohort study of a single center trial registry. SETTING: Academic medical center. PATIENTS: Mechanically ventilated emergency department patients. INCLUSION CRITERIA: age 18 years and older, diagnosed with sepsis in the emergency department, and mechanical ventilation initiated in the emergency department...
December 19, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29247764/efficacy-and-safety-concerns-over-the-use-of-mucus-modulating-agents-for-drug-delivery-using-nanoscale-systems
#9
Peter I Chater, Matthew D Wilcox, Jeffrey P Pearson
Drug delivery to the mucus covered mucosae is fraught with difficulties and many different approaches have been developed to permeate the mucus barrier. Generally by modifying the delivery system to avoid interaction with the mucus. These modifications are reviewed here in terms of efficacy and safety. These are particular problems for oral delivery the pharmaceutical industry's favoured route for drug administration. For effective delivery through the gastrointestinal tract a drug must pass through three barriers in sufficient amounts to yield a biological effect...
December 13, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29222698/efficacy-evaluation-of-iclaprim-in-a-neutropenic-rat-lung-infection-model-with-methicillin-resistant-staphylococcus-aureus-entrapped-in-alginate-microspheres
#10
David B Huang, Ian Morrissey, Timothy Murphy, Stephen Hawser, Mark H Wilcox
The objective of this study was to demonstrate the efficacy of iclaprim in a neutropenic rat lung infection model with methicillin-resistant Staphylococcus aureus (MRSA) entrapped in alginate beads. An inoculum of 5.25 × 105 colony-forming units (CFU)/mL of S. aureus strain AH1252 was administered intratracheally to rats with prepared alginate bacteria suspensions. Beginning 2 h post-infection, rats received: (1) iclaprim 80 mg/kg (n = 16); (2) iclaprim 60 mg/kg (n = 16), or (3) vancomycin 50 mg/kg (n = 24), for 3 days via subcutaneous (SC) injection every 12 h...
December 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29200599/expression-levels-and-localizations-of-dvl3-and-sfrp3-in-glioblastoma
#11
Anja Kafka, Davor Tomas, Mirna Lechpammer, Tea Gabud, Leo Pažanin, Nives Pećina-Šlaus
The expression patterns of critical molecular components of Wnt signaling, sFRP3 and DVL3, were investigated in glioblastoma, the most aggressive form of primary brain tumors, with the aim to offer potential biomarkers. The protein expression levels and localizations in tumor tissue were revealed by immunohistochemistry and evaluated by the semiquantitative method and immunoreactivity score. Majority of glioblastomas had moderate expression levels for both DVL3 (52.4%) and sFRP3 (52.3%). Strong expression levels were observed in 23...
2017: Disease Markers
https://www.readbyqxmd.com/read/29193512/exertional-hypoxemia-is-more-severe-in-fibrotic-interstitial-lung-disease-than-in-copd
#12
Jean P Du Plessis, Senan Fernandes, Rakin Jamal, Pat Camp, Kerri Johannson, Michele Schaeffer, Pearce G Wilcox, Jordan A Guenette, Christopher J Ryerson
BACKGROUND AND OBJECTIVE: Despite its clinical and prognostic significance, few studies have evaluated the severity of exertional oxygen desaturation in fibrotic interstitial lung disease (ILD). Our objectives were to identify clinical and physiological variables that predict the extent of exertional oxygen desaturation in fibrotic ILD and to quantify the severity of desaturation compared to chronic obstructive pulmonary disease (COPD). METHODS: This retrospective study compared the results of 6-min walk test (6MWT) performed while breathing room air in fibrotic ILD patients and COPD patients eligible for pulmonary rehabilitation...
November 28, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29173741/traumatic-stress-interacts-with-bipolar-disorder-genetic-risk-to-increase-risk-for-suicide-attempts
#13
Holly C Wilcox, Janice M Fullerton, Anne L Glowinski, Kelly Benke, Masoud Kamali, Leslie A Hulvershorn, Emma K Stapp, Howard J Edenberg, Gloria M P Roberts, Neera Ghaziuddin, Carrie Fisher, Christine Brucksch, Andrew Frankland, Claudio Toma, Alex D Shaw, Elizabeth Kastelic, Leslie Miller, Melvin G McInnis, Philip B Mitchell, John I Nurnberger
OBJECTIVE: Bipolar disorder (BD) is one of the most heritable psychiatric conditions and is associated with high suicide risk. To explore the reasons for this link, this study examined the interaction between traumatic stress and BD polygenic risk score in relation to suicidal ideation, suicide attempt, and nonsuicidal self-injury (NSSI) in adolescent and young adult offspring and relatives of persons with BD (BD-relatives) compared with adolescent and young adult offspring of individuals without psychiatric disorders (controls)...
December 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/29167164/nrf2-prevents-hypertension-increased-adma-microvascular-oxidative-stress-and-dysfunction-in-mice-with-two-weeks-of-angiotensin-ii-infusion
#14
Cheng Wang, Zaiming Luo, Gabriella Carter, Anton Wellstein, Pedro A Jose, James Tomlinson, James Leiper, William J Welch, Christopher S Wilcox, Dan Wang
Nuclear factor erythyroid factor 2 (Nrf2) transcribes genes in cultured endothelial cells that reduce reactive oxygen species (ROS) and generate nitric oxide (NO) or metabolize asymmetric dimethylarginine (ADMA) that inhibits NO synthase (NOS). Therefore, we undertook a functional study to test the hypothesis that activation of Nrf2 by tert-butylhydroquinone (tBHQ) preserves microvascular endothelial function during oxidative stress. Wild-type CB57Bl/6 (wt), Nrf2 wt (+/+), or knockout (-/-) mice received vehicle (Veh) or tBHQ (0...
November 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29132317/development-of-amplicon-deep-sequencing-markers-and-data-analysis-pipeline-for-genotyping-multi-clonal-malaria-infections
#15
Anita Lerch, Cristian Koepfli, Natalie E Hofmann, Camilla Messerli, Stephen Wilcox, Johanna H Kattenberg, Inoni Betuela, Liam O'Connor, Ivo Mueller, Ingrid Felger
BACKGROUND: Amplicon deep sequencing permits sensitive detection of minority clones and improves discriminatory power for genotyping multi-clone Plasmodium falciparum infections. New amplicon sequencing and data analysis protocols are needed for genotyping in epidemiological studies and drug efficacy trials of P. falciparum. METHODS: Targeted sequencing of molecular marker csp and novel marker cpmp was conducted in duplicate on mixtures of parasite culture strains and 37 field samples...
November 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29104905/byte-by-bite-use-of-a-mobile-bite-counter-and-weekly-behavioral-challenges-to-promote-weight-loss
#16
Gabrielle M Turner-McGrievy, Alycia Boutté, Anthony Crimarco, Sara Wilcox, Brent E Hutto, Adam Hoover, Eric R Muth
The goal of this study was to examine the usability and feasibility of the mobile Bite Counter (a watch-like device that detects when a user consumes food or beverage) and the impact of weekly behavioral challenges on diet and physical activity outcomes. Overweight (mean BMI 31.1±4.9 kg/m(2)) adults (n=12) were recruited to participate in a four-week study to test both the usability and feasibility of using the device as part of a behavioral weight loss intervention. Participants were instructed to self-monitor number of bites/day using the Bite Counter, attend weekly group sessions, and listen to weekly podcasts...
September 2017: Smart Health
https://www.readbyqxmd.com/read/29092667/manipulating-the-reported-age-in-earliest-memories
#17
Ineke Wessel, Theresa Schweig, Rafaële J C Huntjens
Previous work suggests that the estimated age in adults' earliest autobiographical memories depends on age information implied by the experimental context [e.g., Kingo, O. S., Bohn, A., & Krøjgaard, P. (2013). Warm-up questions on early childhood memories affect the reported age of earliest memories in late adolescence. Memory, 21(2), 280-284. doi: 10.1080/09658211.2012.729598 ] and that the age in decontextualised snippets of memory is younger than in more complete accounts (i.e., event memories [Bruce, D...
November 2, 2017: Memory
https://www.readbyqxmd.com/read/29048969/school-based-curriculum-to-improve-depression-literacy-among-us-secondary-school-students-a-randomized-effectiveness-trial
#18
RANDOMIZED CONTROLLED TRIAL
Karen Swartz, Rashelle J Musci, Mary Beth Beaudry, Kathryn Heley, Leslie Miller, Clarissa Alfes, Lisa Townsend, Graham Thornicroft, Holly C Wilcox
OBJECTIVES: To determine the effectiveness of a universal school-based depression education program. METHODS: In 2012-2015, we matched 6679 students from 66 secondary schools into pairs by state (Maryland, Delaware, Pennsylvania, Michigan, and Oklahoma) and randomized to the Adolescent Depression Awareness Program (ADAP; n = 3681) or to a waitlist control condition (n = 2998). Trained teachers delivered ADAP as part of the health education curriculum to students aged 14 to 15 years...
December 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/29032125/rifm-fragrance-ingredient-safety-assessment-tetrahydro-4-methyl-2-2-methylpropen-1-yl-pyran-cas-registry-number-16409-43-1
#19
A M Api, D Belsito, S Bhatia, D Botelho, D Browne, M Bruze, A Burton, J Buschmann, P Calow, M L Dagli, M Date, W Dekant, C Deodhar, A D Fryer, K Joshi, L Kromidas, S La Cava, J F Lalko, A Lapczynski, D C Liebler, Y Miyachi, D O'brien, R Parakhia, A Patel, T M Penning, V T Politano, G Ritacco, J Romine, D Salvito, T W Schultz, J Shen, I G Sipes, Y Thakkar, Y Tokura, S Tsang, J Wahler, B Wall, D K Wilcox
No abstract text is available yet for this article.
October 11, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29025969/a-versatile-optical-tool-for-studying-synaptic-gabaa-receptor-trafficking
#20
Joshua M Lorenz-Guertin, Madeleine R Wilcox, Ming Zhang, Mads B Larsen, Jyotsna Pilli, Brigitte F Schmidt, Marcel P Bruchez, Jon W Johnson, Alan S Waggoner, Simon C Watkins, Tija C Jacob
Live-cell imaging methods can provide critical real-time receptor trafficking measurements. Here we describe an optical tool to study synaptic GABAA receptor (GABAAR) dynamics using adaptable fluorescent tracking capabilities. A fluorogen-activating peptide (FAP) was genetically inserted into a γ2 subunit tagged with pH-sensitive green fluorescent protein (γ2(pH)FAP). The FAP selectively binds and activates malachite green (MG) dyes that are otherwise non-fluorescent in solution. γ2(pH)FAP GABAARs are expressed at the cell surface in transfected cortical neurons, form synaptic clusters, and do not perturb neuronal development...
October 12, 2017: Journal of Cell Science
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