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https://www.readbyqxmd.com/read/28231476/evaluation-of-cognitive-performance-in-professional-divers-by-means-of-event-related-potentials-and-neuropsychology
#1
Mehmet Ergen, Atilla Uslu, Ozlem Caglar, Sukriye Akca-Kalem, Maide Cimsit, Hakan Gurvit
OBJECTIVE: We investigated whether professional air diving with no decompression illness causes any long-term changes in cognitive functions. METHODS: The all-male participants consisted of 18 healthy control (HC) volunteers and 32 divers. Divers were divided into two subgroups as moderate exposure group, Divers-I (DI) and extensive exposure group, Divers-II (DII). Participants were administered a comprehensive neuropsychological battery and event-related potentials (ERPs) were recorded while they performed auditory oddball task and visual continuous performance test (CPT)...
January 29, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28228681/discovery-of-a-new-species-of-hermit-crab-of-the-genus-pylopaguropsis-alcock-1905-from-the-caribbean-den-commensal-or-cleaner-crustacea-anomura-paguridae
#2
Rafael Lemaitre
A new secretive, yet brightly colored hermit crab species of the family Paguridae, Pylopaguropsis mollymulleraesp. n., is fully described based on specimens from the reefs of Bonaire, Lesser Antilles, southern Caribbean Sea. Populations of this new species were discovered and photographed in the Bonaire National Marine Park under a large coral ledge, at a depth of 13.7 m, living in crevices known by scuba divers to serve as den to a pair of "flaming reef lobsters" Enoplometopus antillensis, or a "broad banded moray" Channomuraena vittata...
2017: ZooKeys
https://www.readbyqxmd.com/read/28228118/the-association-of-kidney-function-with-repetitive-breath-hold-diving-activities-of-female-divers-from-korea-haenyeo
#3
Yun Jung Oh, Ji Yong Jung, Sung Soo Kim, Kyong-Suk Chae, Jiwon Rhu, Chungsik Lee
BACKGROUND: Voluntary apnea during breath-hold diving (BHD) induces cardiovascular changes including bradycardia, reduced cardiac output, and arterial hypertension. Although the impacts of repetitive BHD on cardiovascular health have been studied previously, the long-term risk for kidney dysfunction has never been investigated. METHODS: A cross-sectional propensity score-matched study was performed to evaluate the influence of repetitive long-lasting BHD on kidney function...
February 23, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28221393/comex-30-f%C3%A3-r-behandling-av-tryckfallssjuka-med-neurologiska-symtom
#4
Anders Rosén, Nicklas Oscarsson, Olaf Gräbel, Göran Sandström
The use of treatment table COMEX 30 for severe neurological decompression sickness Decompression sickness (DCS) can occur after all dives. It often requires treatment in a pressure chamber. DCS with symptoms from the nervous system is particularly serious. In certain cases, the commonly used recompression table (USN TT6) does not suffice to revert severe neurological symptoms. A more advanced recompression table, COMEX 30, can be utilized in these cases. We report three cases of DCS where treatment according to COMEX 30 successfully resolved neurological symptoms...
February 17, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28220254/hiv-1-persistent-viremia-is-frequently-followed-by-episodes-of-low-level-viremia
#5
Marek Widera, Miriam Dirks, Barbara Bleekmann, Robert Jablonka, Martin Däumer, Hauke Walter, Robert Ehret, Jens Verheyen, Stefan Esser
After the start of antiretroviral therapy (ART), plasma HIV-RNA levels should fall below the limit of detection (LOD) within 24 weeks. Hence, the prolonged decline of HIV-RNA after ART initiation is defined as persistent viremia (PV). In this retrospective study, we analyzed factors associated with PV. Next-generation sequencing of viral RNA/DNA was performed to study viral evolution and the emergence of drug-resistance mutations in HIV-infected patients with PV (n = 20). In addition, HIV-DNA species, immunological parameters, and clinical data of the patients were analyzed...
February 20, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28202583/acoustic-measurements-of-post-dive-cardiac-responses-in-southern-elephant-seals-mirounga-leonina-during-surfacing-at-sea
#6
Louise Day, Joffrey Jouma'a, Julien Bonnel, Christophe Guinet
Measuring physiological data in free-ranging marine mammals remains challenging, owing to their far-ranging foraging habitat. Yet, it is important to understand how these divers recover from effort expended underwater, as marine mammals can perform deep and recurrent dives. Among them, southern elephant seals (Mirounga leonina) are one of the most extreme divers, diving continuously at great depth and for long duration while travelling over large distances within the Southern Ocean. To determine how they manage post-dive recovery, we deployed hydrophones on four post-breeding female southern elephant seals...
February 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28196116/the-scoring-bias-in-reverse-docking-and-the-score-normalization-strategy-to-improve-success-rate-of-target-fishing
#7
Qiyao Luo, Liang Zhao, Jianxing Hu, Hongwei Jin, Zhenming Liu, Liangren Zhang
Target fishing often relies on the use of reverse docking to identify potential target proteins of ligands from protein database. The limitation of reverse docking is the accuracy of current scoring funtions used to distinguish true target from non-target proteins. Many contemporary scoring functions are designed for the virtual screening of small molecules without special optimization for reverse docking, which would be easily influenced by the properties of protein pockets, resulting in scoring bias to the proteins with certain properties...
2017: PloS One
https://www.readbyqxmd.com/read/28195864/profound-hypopnea-with-xenon-anesthesia-in-a-free-diver
#8
LETTER
John R Cormack, Jarrod Gott, Sarah Kondogiannis
No abstract text is available yet for this article.
February 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28183028/estimates-of-the-non-market-value-of-sea-turtles-in-tobago-using-stated-preference-techniques
#9
Michelle Cazabon-Mannette, Peter W Schuhmann, Adrian Hailey, Julia Horrocks
Economic benefits are derived from sea turtle tourism all over the world. Sea turtles also add value to underwater recreation and convey non-use values. This study examines the non-market value of sea turtles in Tobago. We use a choice experiment to estimate the value of sea turtle encounters to recreational SCUBA divers and the contingent valuation method to estimate the value of sea turtles to international tourists. Results indicate that turtle encounters were the most important dive attribute among those examined...
February 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28171707/the-american-cancer-society-s-cancer-prevention-study-3-cps-3-recruitment-study-design-and-baseline-characteristics
#10
Alpa V Patel, Eric J Jacobs, Daniela M Dudas, Peter J Briggs, Cari J Lichtman, Elizabeth B Bain, Victoria L Stevens, Marjorie L McCullough, Lauren R Teras, Peter T Campbell, Mia M Gaudet, Elizabeth G Kirkland, Melissa H Rittase, Nance Joiner, W Ryan Diver, Janet S Hildebrand, Nancy C Yaw, Susan M Gapstur
BACKGROUND: Prospective cohort studies contribute importantly to understanding the role of lifestyle, genetic, and other factors in chronic disease etiology. METHODS: The American Cancer Society (ACS) recruited a new prospective cohort study, Cancer Prevention Study 3 (CPS-3), between 2006 and 2013 from 35 states and Puerto Rico. Enrollment took place primarily at ACS community events and at community enrollment "drives." At enrollment sites, participants completed a brief survey that included an informed consent, identifying information necessary for follow-up, and key exposure information...
February 7, 2017: Cancer
https://www.readbyqxmd.com/read/28166929/kinetics-of-plasma-procalcitonin-soluble-cd14-ccl2-and-il-10-after-a-sublethal-infusion-of-lipopolysaccharide-in-horses
#11
Francesca Bonelli, Valentina Meucci, Thomas J Divers, Bettina Wagner, Luigi Intorre, Micaela Sgorbini
Endotoxemia represents a significant clinical and economic problem for the equine industry. This study assesses the kinetics of soluble CD14 (sCD14), chemokine (CC motif) ligand 2 (CCL2), interleukin 10 (IL-10) and plasma procalcitonin (PCT) in healthy horses after the intravenous infusion of lipopolysaccharide (LPS). The aim was to contribute to the basic understanding of the equine species-specific kinetics of these molecules in response to LPS exposure, which could support further findings in clinical studies and identify valuable inflammatory biomarkers for equine practice...
February 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28165464/genome-wide-association-analysis-implicates-dysregulation-of-immunity-genes-in-chronic-lymphocytic-leukaemia
#12
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/28164160/pseudomonas-aeruginosa-as-an-etiologic-agent-of-nephrolithiasis-in-deep-water-divers
#13
Victoria Y Bird, Ryan Chastain-Gross, Raymond Sutkowski, Vincent G Bird, Paulas Vyas, Ryan Joseph
Background: A number of occupations and professions may be associated with unique hazards relevant to urologic care. Case Presentation: We relate the presentation, care, and the occupational hazard of urinary tract infection (UTI), presenting as cystitis and pyelonephritis, with stone formation in a scuba diver. The patient voiced concern that his diving suit malfunction was related to his UTI and stone disease. We review the risk of UTI in the diving environment. We also report the development of infection-related stone in this case...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28160059/finger-cold-induced-vasodilation-of-older-korean-female-divers-haenyeo-effects-of-chronic-cold-exposure-and-aging
#14
Joo-Young Lee, Joonhee Park, Eunsook Koh, Seongwon Cha
The aim of the present study was to evaluate the local cold tolerance of older Korean female divers, haenyeo (N = 22) in terms of cold acclimatization and ageing. As control groups, older non-diving females (N = 25) and young females from a rural area (N = 15) and an urban area (N = 51) participated in this study. To evaluate local cold tolerance, finger cold-induced vasodilation (CIVD) during finger immersion of 4 °C water was examined. As a result, older haenyeos showed greater minimum finger temperature and recovery finger temperature than older non-diving females (P < 0...
February 3, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28156158/the-transition-from-day-to-night-activity-is-a-risk-factor-for-the-development-of-cns-oxygen-toxicity-in-the-diurnal-fat-sand-rat-psammomys-obesus
#15
Mirit Eynan, Adi Biram, Michael Mullokandov, Noga Kronfeld-Schor, Rotem Paz-Cohen, Dvir Menajem, Yehuda Arieli
Performance and safety are impaired in employees engaged in shift work. Combat divers who use closed-circuit oxygen diving apparatus undergo part of their training during the night hours. The greatest risk involved in diving with such apparatus is the development of central nervous system oxygen toxicity (CNS-OT). We investigated whether the switch from day-to-night activity may be a risk factor for the development of CNS-OT using a diurnal animal model, the fat sand rat (Psammomys obesus). Animals were kept on a 12:12 light-dark schedule (6 a...
February 3, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28142053/interactions-between-cigarette-smoking-and-ambient-pm2-5-for-cardiovascular-mortality
#16
Michelle C Turner, Aaron Cohen, Richard T Burnett, Michael Jerrett, W Ryan Diver, Susan M Gapstur, Daniel Krewski, Jonathan M Samet, C Arden Pope
Associations between long-term exposure to ambient fine particulate matter (PM2.5) and all-cause and cardiovascular mortality are well documented however less is known regarding possible interactions with cigarette smoking. We previously reported a supra-additive synergistic relationship between PM2.5 and cigarette smoking for lung cancer mortality. Here we examine interactions for all-cause and cardiovascular mortality among 429,406 current or never smoking participants in the prospective American Cancer Society Cancer Prevention Study-II with modeled PM2...
January 28, 2017: Environmental Research
https://www.readbyqxmd.com/read/28140527/fish-wariness-is-a-more-sensitive-indicator-to-changes-in-fishing-pressure-than-abundance-length-or-biomass
#17
Jordan Goetze, Fraser Januchowski-Hartley, Joachim Claudet, Tim Langlois, Shaun Wilson, Stacy D Jupiter
Identifying the most sensitive indicators to changes in fishing pressure is important for accurately detecting impacts. Biomass is thought to be more sensitive than abundance and length, while the wariness of fishes is emerging as a new metric. Periodically harvested closures (PHCs) that involve the opening and closing of an area to fishing are the most common form of fisheries management in the western Pacific. The opening of PHCs to fishing provides a unique opportunity to compare the sensitivity of metrics, such as abundance, length, biomass and wariness, to changes in fishing pressure...
January 31, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28139927/continuous-in-flight-synthesis-for-on-demand-delivery-of-ligand-free-colloidal-gold-nanoparticles
#18
Paul Maguire, David Rutherford, Manuel Macias-Montero, Charles Mahony, Colin Kelsey, Mark Tweedie, Fátima Pérez-Martin, Harold McQuaid, Declan Diver, Davide Mariotti
We demonstrate an entirely new method of nanoparticle chemical synthesis based on liquid droplet irradiation with ultralow (<0.1 eV) energy electrons. While nanoparticle formation via high energy radiolysis or transmission electron microscopy-based electron bombardment is well-understood, we have developed a source of electrons with energies close to thermal which leads to a number of important and unique benefits. The charged species, including the growing nanoparticles, are held in an ultrathin surface reaction zone which enables extremely rapid precursor reduction...
January 31, 2017: Nano Letters
https://www.readbyqxmd.com/read/28128653/possible-central-nervous-system-oxygen-toxicity-seizures-among-us-recreational-air-or-enriched-air-nitrox-open-circuit-diving-fatalities-2004-2013
#19
P Buzzacott, P J Denoble
BACKGROUND: The first diver certification programme for recreational 'enriched air nitrox' (EAN) diving was released in 1985. Concerns were expressed that many EAN divers might suffer central nervous system (CNS) oxygen toxicity seizures and drown. METHODS: US fatalities on open-circuit scuba occurring between 2004-2013, where the breathing gas was either air or EAN, were identified. Causes of death and preceding circumstances were examined by a medical examiner experienced in diving autopsies...
January 27, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28114859/eosinophilic-leukemia-in-three-african-pygmy-hedgehogs-atelerix-albiventris-and-validation-of-luna-stain
#20
David Martínez-Jiménez, Bridget Garner, Sheryl Coutermarsh-Ott, Caitlin Burrell, Sabrina Clark, Mary Nabity, Josué Díaz-Delgado, Aline Rodrigues-Hoffmann, Karen Zaks, Laila Proença, Stephen Divers, Corey Saba, Paola Cazzini
Neoplasia is usually encountered in the African pygmy hedgehog at a mean age of 3.5 y, and malignancy is common. Myelogenous leukemias are rarely reported in hedgehogs. We describe 3 cases of eosinophilic leukemia in adult, middle-aged (mean age: 2.3 y) hedgehogs, for which prognosis appears grave. In 1 case, attempted treatment was unsuccessful, and in all 3 cases, the disease course was rapid and all died soon after diagnosis. Blood smear evaluation, along with complete blood count, was critical in making the diagnosis in all cases...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
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