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https://www.readbyqxmd.com/read/27905014/sexual-venue-choice-and-sexual-risk-taking-among-substance-using-men-who-have-sex-with-men
#1
Joshua A Rusow, Jesse B Fletcher, Cathy J Reback
Commercial sex venues (CSVs) and public sex environments (PSEs) offer men who have sex with men (MSM) sexual privacy and anonymity. Sociodemographic characteristics (e.g., race/ethnicity, sexual identity, age, HIV status) are correlated with individuals' choice of sexual venue, potentially suggesting environmental associations with both sociodemographics and sexual risk. From March 2005 through March 2012, 1298 substance-using MSM provided information on their most recent sexual encounter; iterative logit models estimated associations between sociodemographics and sexual venue, and/or whether sexual venue was associated with sexual risk-taking while controlling for sociodemographics...
November 30, 2016: AIDS and Behavior
https://www.readbyqxmd.com/read/27902731/queen-nefertari-the-royal-spouse-of-pharaoh-ramses-ii-a-multidisciplinary-investigation-of-the-mummified-remains-found-in-her-tomb-qv66
#2
Michael E Habicht, Raffaella Bianucci, Stephen A Buckley, Joann Fletcher, Abigail S Bouwman, Lena M Öhrström, Roger Seiler, Francesco M Galassi, Irka Hajdas, Eleni Vassilika, Thomas Böni, Maciej Henneberg, Frank J Rühli
Queen Nefertari, the favourite Royal Consort of Pharaoh Ramses II (Ancient Egypt, New Kingdom, 19th Dynasty c. 1250 BC) is famous for her beautifully decorated tomb in the Valley of the Queens. Her burial was plundered in ancient times yet still many objects were found broken in the debris when the tomb was excavated. Amongst the found objects was a pair of mummified legs. They came to the Egyptian Museum in Turin and are henceforth regarded as the remains of this famous Queen, although they were never scientifically investigated...
2016: PloS One
https://www.readbyqxmd.com/read/27899644/the-dbgap-data-browser-a-new-tool-for-browsing-dbgap-controlled-access-genomic-data
#3
Kira M Wong, Kristofor Langlais, Geoffrey S Tobias, Colette Fletcher-Hoppe, Donna Krasnewich, Hilary S Leeds, Laura Lyman Rodriguez, Georgy Godynskiy, Valerie A Schneider, Erin M Ramos, Stephen T Sherry
The database of Genotypes and Phenotypes (dbGaP) Data Browser (https://www.ncbi.nlm.nih.gov/gap/ddb/) was developed in response to requests from the scientific community for a resource that enable view-only access to summary-level information and individual-level genotype and sequence data associated with phenotypic features maintained in the controlled-access tier of dbGaP. Until now, the dbGaP controlled-access environment required investigators to submit a data access request, wait for Data Access Committee review, download each data set and locally examine them for potentially relevant information...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27890641/specific-point-mutations-in-key-redox-enzymes-are-associated-with-chemoresistance-in-epithelial-ovarian-cancer
#4
Nicole M Fletcher, Jimmy Belotte, Mohammed G Saed, Ira Memaj, Michael P Diamond, Robert T Morris, Ghassan M Saed
Oxidative stress plays an important role in the pathophysiology of ovarian cancer. Resistance to chemotherapy presents a significant challenge for ovarian cancer treatment. Specific single nucleotide polymorphisms (SNPs) in key redox enzymes have been associated with ovarian cancer survival and progression. The objective of this study was to determine whether chemotherapy induces point mutations in key redox enzymes that lead to the acquisition of chemoresistance in epithelial ovarian cancer (EOC). Human EOC cell lines and their chemoresistant counterpart were utilized for this study...
November 24, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27890379/synthesis-characterization-and-antineoplastic-activity-of-bis-aziridinyl-dimeric-naphthoquinone-a-novel-class-of-compounds-with-potent-activity-against-acute-myeloid-leukemia-cells
#5
Brandon A Carter-Cooper, Steven Fletcher, Dana Ferraris, Eun Yong Choi, Dahlia Kronfli, Smaraki Dash, Phuc Truong, Edward A Sausville, Rena G Lapidus, Ashkan Emadi
The synthesis, characterization and antileukemic activity of rationally designed amino dimeric naphthoquinone (BiQ) possessing aziridine as alkylating moiety is described. Bis-aziridinyl BiQ decreased proliferation of acute myeloid leukemia (AML) cell lines and primary cells from patients, and exhibited potent (nanomolar) inhibition of colony formation and overall cell survival in AML cells. Effective production of reactive oxygen species (ROS) and double stranded DNA breaks (DSB) induced by bis-aziridinyl BiQ is reported...
November 17, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27886229/expanding-and-exploring-the-diversity-of-phytoplasmas-from-lucerne-medicago-sativa
#6
David Gopurenko, Murray J Fletcher, Jian Liu, Geoff M Gurr
Phytoplasmas are a group of insect-vectored bacteria responsible for disease in many plant species worldwide. Among the crop species affected is the economically valuable forage species lucerne. Here we provide comprehensive molecular evidence for infection in multiple lucerne plants by a phytoplasma not previously known from this plant species. This phytoplasma had a >99% genetic similarity to an unclassified 16S rRNA subgroup previously reported as Stylosanthes little leaf from Stylosanthes spp. and was genetically and symptomatically distinct from a co-occurring but less common 16SrIIA group phytoplasma...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27884404/exposure-to-perfluoroalkyl-substances-and-thyroid-function-in-pregnant-women-and-children-a-systematic-review-of-epidemiologic-studies
#7
REVIEW
Virginia Ballesteros, Olga Costa, Carmen Iñiguez, Tony Fletcher, Ferran Ballester, Maria-Jose Lopez-Espinosa
INTRODUCTION: Thyroid hormones (THs) are especially important for brain maturation and development during the fetal period and childhood. Several epidemiological studies have assessed the possible association between exposure to perfluoroalkyl substances (PFAS) and thyroid outcomes during the early stages of life. We aimed to review this evidence. METHODS: We conducted a systematic review in compliance with the PRISMA Statement (search conducted in PubMed and Embase, as well as in the citations of the selected articles)...
November 21, 2016: Environment International
https://www.readbyqxmd.com/read/27882489/psychological-distress-mediates-the-effect-of-alexithymia-on-2-year-change-in-hiv-viral-load
#8
Roger C McIntosh, Gail Ironson, Michael Antoni, Betty Lai, Mahendra Kumar, Mary Ann Fletcher, Neil Schneiderman
PURPOSE: Individuals with trait alexithymia (AL) display poor cognitive assimilation of thoughts, feelings, and emotions. This may result in the persistence of stress, anxiety, and depressive disorders. The cumulative effect of this psychological distress is also linked clinical markers of human immunodeficiency virus (HIV) disease progression. This study examines the indirect effect of AL on HIV viral load as a function of baseline levels and change in psychological distress. METHODS: N = 123 HIV positive adults aged 37...
November 23, 2016: International Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/27880762/unexpected-diversity-in-socially-synchronized-rhythms-of-shorebirds
#9
Martin Bulla, Mihai Valcu, Adriaan M Dokter, Alexei G Dondua, András Kosztolányi, Anne L Rutten, Barbara Helm, Brett K Sandercock, Bruce Casler, Bruno J Ens, Caleb S Spiegel, Chris J Hassell, Clemens Küpper, Clive Minton, Daniel Burgas, David B Lank, David C Payer, Egor Y Loktionov, Erica Nol, Eunbi Kwon, Fletcher Smith, H River Gates, Hana Vitnerová, Hanna Prüter, James A Johnson, James J H St Clair, Jean-François Lamarre, Jennie Rausch, Jeroen Reneerkens, Jesse R Conklin, Joanna Burger, Joe Liebezeit, Joël Bêty, Jonathan T Coleman, Jordi Figuerola, Jos C E W Hooijmeijer, José A Alves, Joseph A M Smith, Karel Weidinger, Kari Koivula, Ken Gosbell, Klaus-Michael Exo, Larry Niles, Laura Koloski, Laura McKinnon, Libor Praus, Marcel Klaassen, Marie-Andrée Giroux, Martin Sládeček, Megan L Boldenow, Michael I Goldstein, Miroslav Šálek, Nathan Senner, Nelli Rönkä, Nicolas Lecomte, Olivier Gilg, Orsolya Vincze, Oscar W Johnson, Paul A Smith, Paul F Woodard, Pavel S Tomkovich, Phil F Battley, Rebecca Bentzen, Richard B Lanctot, Ron Porter, Sarah T Saalfeld, Scott Freeman, Stephen C Brown, Stephen Yezerinac, Tamás Székely, Tomás Montalvo, Theunis Piersma, Vanessa Loverti, Veli-Matti Pakanen, Wim Tijsen, Bart Kempenaers
The behavioural rhythms of organisms are thought to be under strong selection, influenced by the rhythmicity of the environment. Such behavioural rhythms are well studied in isolated individuals under laboratory conditions, but free-living individuals have to temporally synchronize their activities with those of others, including potential mates, competitors, prey and predators. Individuals can temporally segregate their daily activities (for example, prey avoiding predators, subordinates avoiding dominants) or synchronize their activities (for example, group foraging, communal defence, pairs reproducing or caring for offspring)...
December 1, 2016: Nature
https://www.readbyqxmd.com/read/27879515/atypical-spindle-cell-lipomatous-tumor-clinicopathologic-characterization-of-232-cases-demonstrating-a-morphologic-spectrum
#10
Adrian Mariño-Enriquez, Alessandra F Nascimento, Azra H Ligon, Cherwei Liang, Christopher D M Fletcher
The classification of atypical adipocytic neoplasms with spindle cell features remains challenging. To better define this category of low-grade lipomatous neoplasms, we present herein the clinical, histologic, and immunohistochemical characteristics of a large series of 232 atypical spindle cell lipomatous tumors. The lesions affected 140 males and 92 females, at an average age of 54 years (range, 6 to 87 y), clinically presenting as a persistent or enlarging mass with a median size of 5 cm. The anatomic distribution of the tumors was wide, predominating in the limbs and limb girdles (147 cases, 63%), mainly in the hands and feet (17% and 11%, respectively), with equal distribution between subcutaneous and deeper locations...
November 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27876315/cardiorespiratory-fitness-and-incidence-of-major-adverse-cardiovascular-events-in-us-veterans-a-cohort-study
#11
Peter F Kokkinos, Charles Faselis, Jonathan Myers, Puneet Narayan, Xuemei Sui, Jiajia Zhang, Carl J Lavie, Hans Moore, Pamela Karasik, Ross Fletcher
OBJECTIVE: To assess the association between exercise capacity and the risk of major adverse cardiovascular events (MACEs). PATIENTS AND METHODS: A symptom-limited exercise tolerance test was performed to assess exercise capacity in 20,590 US veterans (12,975 blacks and 7615 whites; mean ± SD age, 58.2±11.0 years) from the Veterans Affairs medical centers in Washington, District of Columbia, and Palo Alto, California. None had a history of MACE or evidence of ischemia at the time of or before their exercise tolerance test...
November 19, 2016: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/27874193/alk-oncoproteins-in-atypical-inflammatory-myofibroblastic-tumours-novel-rrbp1-alk-fusions-in-epithelioid-inflammatory-myofibroblastic-sarcoma
#12
Jen-Chieh Lee, Chien-Feng Li, Hsuan-Ying Huang, Mei-Jun Zhu, Adrián Mariño-Enríquez, Chung-Ta Lee, Wen-Bin Ou, Jason L Hornick, Jonathan A Fletcher
ALK oncogenic activation mechanisms were characterized in four conventional spindle-cell inflammatory myofibroblastic tumours (IMT) and five atypical IMT, each of which had ALK genomic perturbations. Constitutively activated ALK oncoproteins were purified by ALK immunoprecipitation and electrophoresis, and were characterized by mass spectrometry. The four conventional IMT had TPM3/4-ALK fusions (two cases) or DCTN1-ALK fusions (two cases), whereas two atypical spindle-cell IMT had TFG-ALK and TPM3-ALK fusion in one case each, and three epithelioid inflammatory myofibroblastic sarcomas had RANBP2-ALK fusions in two cases, and a novel RRBP1-ALK fusion in one case...
November 22, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27872383/stress-appraisal-information-processing-strategies-and-somatic-symptoms-a-longitudinal-study-with-immigrants
#13
Agnes Szabo, Colleen Ward, Garth J O Fletcher
The study investigated threat versus challenge appraisals of acculturative stressors and their impact on the changes in psychological symptoms. It also examined information processing styles (informational, normative, and diffuse-avoidant) as moderators of these relationships. A 6-month longitudinal study with two measuring points was conducted with a sample of immigrants. Threat appraisal was associated with more psychological symptoms, and challenge appraisal interacted with information processing styles to predict the changes in somatic symptoms...
November 21, 2016: Journal of Health Psychology
https://www.readbyqxmd.com/read/27857878/magnetic-resonance-imaging-assessment-of-vascular-contact-of-the-facial-nerve-in-the-asymptomatic-patient
#14
Nicholas L Deep, Geoffrey P Fletcher, Kent D Nelson, Ameet C Patel, David M Barrs, Bernard R Bendok, Joseph M Hoxworth
Objective The objective of this study was to determine the prevalence of facial nerve vascular contact on magnetic resonance imaging (MRI) in patients without hemifacial spasm (HFS). Study Design Our radiology database was queried to identify consecutive adult patients without a history of HFS, intracranial tumor, brain radiation therapy, intracranial surgery, traumatic brain injury, or trigeminal nerve vascular compression. One hundred high-resolution MRIs of the posterior fossa were independently reviewed by two neuroradiologists for facial nerve vascular contact (200 sides)...
December 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27855724/biological-characterization-of-chemically-diverse-compounds-targeting-the-plasmodium-falciparum-coenzyme-a-synthesis-pathway
#15
Sabine Fletcher, Leonardo Lucantoni, Melissa L Sykes, Amy J Jones, John P Holleran, Kevin J Saliba, Vicky M Avery
BACKGROUND: In the fight against malaria, the discovery of chemical compounds with a novel mode of action and/or chemistry distinct from currently used drugs is vital to counteract the parasite's known ability to develop drug resistance. Another desirable aspect is efficacy against gametocytes, the sexual developmental stage of the parasite which enables the transmission through Anopheles vectors. Using a chemical rescue approach, we previously identified compounds targeting Plasmodium falciparum coenzyme A (CoA) synthesis or utilization, a promising target that has not yet been exploited in anti-malarial drug development...
November 17, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27851827/unravelling-the-genome-wide-contributions-of-specific-2-alkyl-4-quinolones-and-pqse-to-quorum-sensing-in-pseudomonas-aeruginosa
#16
Giordano Rampioni, Marilena Falcone, Stephan Heeb, Emanuela Frangipani, Matthew P Fletcher, Jean-Frédéric Dubern, Paolo Visca, Livia Leoni, Miguel Cámara, Paul Williams
The pqs quorum sensing (QS) system is crucial for Pseudomonas aeruginosa virulence both in vitro and in animal models of infection and is considered an ideal target for the development of anti-virulence agents. However, the precise role played by each individual component of this complex QS circuit in the control of virulence remains to be elucidated. Key components of the pqs QS system are 2-heptyl-4-hydroxyquinoline (HHQ), 2-heptyl-3-hydroxy-4-quinolone (PQS), 2-heptyl-4-hydroxyquinoline N-oxide (HQNO), the transcriptional regulator PqsR and the PQS-effector element PqsE...
November 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27851593/1959-intravenous-pump-failure-leading-to-heparin-overdose
#17
Rebecca Fletcher, Chanie Wassner, Roman Fazylov, Henry Cohen
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851343/1708-emergent-reversal-of-apixaban-with-andexanet-alfa-to-facilitate-debridement-of-necrotizing-fasciitis
#18
John Fletcher, John Graybill, Carlos Alphonso, Truman Milling, Andrew Cap, Kevin Akers
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851109/1473-tertiary-hospital-sepsis-champion-education-reveals-needs-and-increases-transfers
#19
Brett Hartkopp, Suzanne Fletcher, Francie Ekengren, Gina Berg
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850229/589-continuous-versus-intermittent-pantoprazole-infusion-therapy-for-gastrointestinal-ulcer-bleeding
#20
Alison Merkel, Douglas Benedetti, Eardie Curry, Fletcher Srygley, Nora Talley, Nicolas Forcade
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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