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https://www.readbyqxmd.com/read/28454425/whole-body-low-dose-computed-tomography-in-multiple-myeloma-staging-superior-diagnostic-performance-in-the-detection-of-bone-lesions-vertebral-compression-fractures-rib-fractures-and-extraskeletal-findings-compared-to-radiography-with-similar-radiation-exposure
#1
Lukas Lambert, Petr Ourednicek, Zuzana Meckova, Giampaolo Gavelli, Jan Straub, Ivan Spicka
The primary objective of the present prospective study was to compare the diagnostic performance of conventional radiography (CR) and whole-body low-dose computed tomography (WBLDCT) with a comparable radiation dose reconstructed using hybrid iterative reconstruction technique, in terms of the detection of bone lesions, skeletal fractures, vertebral compressions and extraskeletal findings. The secondary objective was to evaluate lesion attenuation in relation to its size. A total of 74 patients underwent same-day skeletal survey by CR and WBLDCT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453535/plasma-amino-acids-and-metabolic-profiling-of-dairy-cows-in-response-to-a-bolus-duodenal-infusion-of-leucine
#2
Hassan Sadri, Dirk von Soosten, Ulrich Meyer, Jeannette Kluess, Sven Dänicke, Behnam Saremi, Helga Sauerwein
Leucine (Leu), one of the three branch chain amino acids, acts as a signaling molecule in the regulation of overall amino acid (AA) and protein metabolism. Leucine is also considered to be a potent stimulus for the secretion of insulin from pancreatice β-cells. Our objective was to study the effects of a duodenal bolus infusion of Leu on insulin and glucagon secretion, on plasma AA concentrations, and to do a metabolomic profiling of dairy cows as compared to infusions with either glucose or saline. Six duodenum-fistulated Holstein cows were studied in a replicated 3 × 3 Latin square design with 3 periods of 7 days, in which the treatments were applied at the end of each period...
2017: PloS One
https://www.readbyqxmd.com/read/28453300/psychiatry-sex-and-science-the-making-of-adolescent-motherhood-in-southern-brazil
#3
Dominique P Béhague
Research linking teen motherhood to psychoneurodevelopmental causes and pathologies has proliferated in the past two decades. In Brazil, a psychodevelopmental project of teen motherhood has gained traction despite many experts' long-standing commitment to psychodynamic psychiatry and social epidemiology, generating epistemic tension rather than substitution. Drawing on historical ethnography conducted in Southern Brazil, I explore how this project materialized through the co-production of epistemic struggles, remedial interventions, and ontological politics...
April 28, 2017: Medical Anthropology
https://www.readbyqxmd.com/read/28449054/i-learn-therefore-i-am-a-phenomenological-analysis-of-meanings-of-lifelong-learning-for-vulnerable-older-adults
#4
Miya Narushima, Jian Liu, Naomi Diestelkamp
Background and Objectives: This study explores the lifelong learning experience of vulnerable older adults to find out (a) what is involved in their activities, (b) what meanings they take from their learning, and (c) how participation in a learning program helps to maintain their well-being and independent living despite their daily challenges. Research Design and Methods: This study employed a hermeneutic phenomenological approach. As part of a larger study, we conducted semi-structured interviews with older learners enrolled in general interest courses at a public continuing education program...
April 26, 2017: Gerontologist
https://www.readbyqxmd.com/read/28448845/use-of-aqueous-two-phase-peg-salt-systems-for-the-removal-of-anionic-surfactant-from-effluents
#5
Gabriella Frade Murari, Jussara Alves Penido, Heriveltom Morais da Silva, Bruno Eduardo Lôbo Baêta, Sérgio Francisco de Aquino, Leandro Rodrigues de Lemos, Guilherme Dias Rodrigues, Aparecida Barbosa Mageste
Linear alkylbenzene sulfonates (LAS) are synthetic anionic surfactants that are extensively used in many industries. As a result, large volumes of effluents containing high levels of these compounds are discharged into water bodies, causing risks to aquatic flora and fauna. Then, there is a need for environmentally safe and economically viable technologies for the removal of LAS from aqueous matrices. The present work evaluates the use of aqueous two-phase systems (ATPS) composed of PEG and sulfate salts for this purpose, considering the effects of tie line length (TLL), molar mass of polymer, and type of cation-forming salt on the partitioning behavior of LAS...
April 24, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28448604/non-invasive-imaging-assessment-of-the-biodistribution-of-gsk2849330-an-adcc-and-cdc-optimized-anti-her3-mab-and-its-role-in-tumor-macrophage-recruitment-in-human-tumor-bearing-mice
#6
Hasan Alsaid, Tinamarie Skedzielewski, Mary V Rambo, Kristen Hunsinger, Bao Hoang, William Fieles, Edward R Long, James Tunstead, Danielle J Vugts, Matthew Cleveland, Neil Clarke, Christopher Matheny, Beat M Jucker
The purpose of this work was to use various molecular imaging techniques to non-invasively assess GSK2849330 (anti HER3 ADCC and CDC enhanced 'AccretaMab' monoclonal antibody) pharmacokinetics and pharmacodynamics in human xenograft tumor-bearing mice. Immuno-PET biodistribution imaging of radiolabeled 89Zr-GSK2849330 was assessed in mice with HER3 negative (MIA-PaCa-2) and positive (CHL-1) human xenograft tumors. Dose dependency of GSK2849330 disposition was assessed using varying doses of unlabeled GSK2849330 co-injected with 89Zr-GSK2849330...
2017: PloS One
https://www.readbyqxmd.com/read/28448584/sarcopenia-in-patients-with-chronic-kidney-disease-not-yet-on-dialysis-analysis-of-the-prevalence-and-associated-factors
#7
Viviane Angelina de Souza, Dílmerson Oliveira, Sérgio Ribeiro Barbosa, José Otávio do Amaral Corrêa, Fernando Antônio Basile Colugnati, Henrique Novais Mansur, Natália Maria da Silva Fernandes, Marcus Gomes Bastos
INTRODUCTION: Sarcopenia is a chronic condition that is associated with aging and characterized by a reduction of muscle mass, strength, and function. Sarcopenia is prevalent in patients with chronic kidney disease (CKD) and associated with increased morbidity and mortality, as well as cardiovascular complications. OBJECTIVES: To investigate the prevalence of sarcopenia in patients with CKD not yet on dialysis and its correlation with clinical and laboratory variables and inflammatory markers...
2017: PloS One
https://www.readbyqxmd.com/read/28448543/heterologous-expression-of-a-thermophilic-diacylglycerol-acyltransferase-triggers-triglyceride-accumulation-in-escherichia-coli
#8
Beatriz Lázaro, Juan A Villa, Omar Santín, Matilde Cabezas, Cintia D F Milagre, Fernando de la Cruz, Gabriel Moncalián
Triglycerides (TAGs), the major storage molecules of metabolic energy and source of fatty acids, are produced as single cell oil by some oleogenic microorganisms. However, these microorganisms require strict culture conditions, show low carbon source flexibilities, lack efficient genetic modification tools and in some cases pose safety concerns. TAGs have essential applications such as behaving as a source for added-value fatty acids or giving rise to the production of biodiesel. Hence, new alternative methods are urgently required for obtaining these oils...
2017: PloS One
https://www.readbyqxmd.com/read/28448028/system-for-efficacy-and-cytotoxicity-screening-of-inhibitors-targeting-intracellular-mycobacterium-tuberculosis
#9
Xingji Zheng, Yossef Av-Gay
Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), is a leading cause of morbidity and mortality worldwide. With the increased spread of multi drug-resistant TB (MDR-TB), there is a real urgency to develop new therapeutic strategies against M. tuberculosis infections. Traditionally, compounds are evaluated based on their antibacterial activity under in vitro growth conditions in broth; however, results are often misleading for intracellular pathogens like M. tuberculosis since in-broth phenotypic screening conditions are significantly different from the actual disease conditions within the human body...
April 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447841/examining-depletion-theories-under-conditions-of-within-task-transfer
#10
Gene A Brewer, Kevin K H Lau, Kimberly M Wingert, B Hunter Ball, Chris Blais
In everyday life, mental fatigue can be detrimental across many domains including driving, learning, and working. Given the importance of understanding and accounting for the deleterious effects of mental fatigue on behavior, a growing body of literature has studied the role of motivational and executive control processes in mental fatigue. In typical laboratory paradigms, participants complete a task that places demand on these self-control processes and are later given a subsequent task. Generally speaking, decrements to subsequent task performance are taken as evidence that the initial task created mental fatigue through the continued engagement of motivational and executive functions...
April 27, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28447299/vancomycin-loaded-hpmc-microparticles-embedded-within-injectable-thermosensitive-chitosan-hydrogels
#11
M Mahmoudian, F Ganji
Antibiotic use is an essential method for the treatment of bacterial infections. In certain cases, antibiotics are not effective because of the distribution problems caused by physiological barriers in the body. Such problems are thought to be minimized by development of sustained release systems which involve implantation of antibiotic loaded polymeric systems directly to the site of infection. In this work, a new composite vancomycin hydrochloride release system based on HPMC microparticles and chitosan/glycerophosphate (Ch/Gp) thermosensitive hydrogel was designed for the aim of local treatment of osteomyelitis...
April 26, 2017: Progress in biomaterials
https://www.readbyqxmd.com/read/28446879/the-mammalian-peptide-adrenomedullin-acts-as-a-growth-factor-in-tobacco-plants
#12
Rafael Peláez, María Niculcea, Alfredo Martínez
Growth factors are extracellular signals that regulate cell proliferation and total body mass. Some animal growth factors can work on plant tissues and vice versa. Here we show that the mammalian growth factor adrenomedullin (AM) induces growth in tobacco plants. Addition of synthetic AM resulted in a dose-dependent growth of tobacco calluses. Furthermore, AM transgenic plants showed enhanced survival and significant increases in stem diameter, plant height, leaf length, weight of all organs, and a reduction in the time to flowering when compared to plants transformed with the control vector...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28446839/awareness-of-blood-borne-infections-and-burden-of-occupational-exposures-to-blood-and-body-fluids-among-health-care-personnel-in-a-tertiary-care-teaching-hospital
#13
Swetharani, K V Vinod, Abdoul Hamide, Tarun K Dutta, K T Harichandrakumar
BACKGROUND AND OBJECTIVES: Occupational exposures (OEs) to blood and body fluids (BBFs) pose significant risk of transmission of blood-borne infections (BBIs) to health care personnel (HCP) and are grossly underreported. We aimed to study the awareness of BBIs and their prevention, burden of OEs, assess factors contributing to them and their poor reporting and assess the practices for their prevention among HCP. MATERIALS AND METHODS: This cross-sectional study conducted at a tertiary care teaching hospital located in south India used a self-administered questionnaire to assess the awareness of BBIs, attitude and practice of HCP for prevention of OEs, and to quantify the burden of exposures...
September 2016: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28445695/neural-correlates-of-evoked-phantom-limb-sensations
#14
J Andoh, M Diers, C Milde, C Köppe, D Kleinböhl, H Flor
Previous work showed the existence of changes in the topographic organization within the somatosensory cortex (SI) in amputees with phantom limb pain, however, the link between nonpainful phantom sensations such as cramping or tingling or the percept of the limb and cortical changes is less clear. We used functional magnetic resonance imaging (fMRI) in a highly selective group of limb amputees who experienced inducible and reproducible nonpainful phantom sensations. A standardized procedure was used to locate body sites eliciting phantom sensations in each amputee...
April 23, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28445588/the-relative-importance-of-pollinator-abundance-and-species-richness-for-the-temporal-variance-of-pollination-services
#15
Mark A Genung, Jeremy Fox, Neal M Williams, Claire Kremen, John Ascher, Jason Gibbs, Rachael Winfree
The relationship between biodiversity and the stability of ecosystem function is a fundamental question in community ecology, and hundreds of experiments have shown a positive relationship between species richness and the stability of ecosystem function. However, these experiments have rarely accounted for common ecological patterns, most notably skewed species abundance distributions and non-random extinction risks, making it difficult to know whether experimental results can be scaled up to larger, less manipulated systems...
April 26, 2017: Ecology
https://www.readbyqxmd.com/read/28445394/spectroscopic-detection-of-glyphosate-in-water-assisted-by-laser-ablated-silver-nanoparticles
#16
Rafael Eleodoro De Góes, Marcia Muller, José Luís Fabris
Glyphosate is one of the most widely used herbicides in the world. Its safety for both human health and aquatic biomes is a subject of wide debate. There are limits to glyphosate's presence in bodies of water, and it is usually detected through complex analytical procedures. In this work, the presence of glyphosate is detected directly through optical interrogation of aqueous solution. For this purpose, silver nanoparticles were produced by pulsed laser ablation in liquids. Limits of detection of 0.9 mg/L and 3...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445359/the-impact-of-body-contouring-procedures-on-urologic-outcomes-in-massive-weight-loss-patients
#17
Oren P Mushin, Franca S Kraenzlin, Anees Fazili, Ahmed Ghazi, Ronald P Bossert
BACKGROUND: Post-massive weight loss body contouring is a growing area of plastic surgery. Studies have shown preexisting urinary incontinence amelioration in patients undergoing abdominal body-contouring procedures. These studies are small, focus on cosmetic abdominoplasties, and lack use of standardized surveys. The purpose of this study was to evaluate urinary incontinence endpoints in massive weight loss patients undergoing body-contouring procedures. METHODS: A retrospective review was conducted over a 6-year period...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445078/effects-of-high-intensity-interval-training-on-canoeing-performance
#18
Ming-Ta Yang, Mien-Mien Lee, Shu-Ching Hsu, Kuei-Hui Chan
The purpose of this study was to compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) utilizing a canoeing ergometer on endurance determinants, as well as aerobic and anaerobic performances among flat-water canoeists. Fourteen well-trained male flat-water canoeists were divided into an HIIT group or an MICT group. All subjects performed a continuous graded exercise test (GXT) and three fixed-distance (200, 500, and 1000 m) performance tests on a canoeing ergometer to determine canoeing economy, peak oxygen uptake (VO2peak), and power at VO2peak, and to calculate the critical velocity (CV) and anaerobic work capacity before and after the training programmes...
April 26, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28444565/technological-applications-of-organo-montmorillonites-in-the-removal-of-pyrimethanil-from-water-adsorption-desorption-and-flocculation-studies
#19
Federico M Flores, Tomas Undabeytia, Esmeralda Morillo, Rosa M Torres Sánchez
Pyrimethanil (2-aniline-4, 6-dimethylpyrimidine, PRM) is used in fruit packing plants to control fungal infections and diseases. The effluents greatly polluted with this fungicide, as a point source contamination, need to be technologically treated for their regeneration before they reach water bodies. This work evaluates the use of organo-montmorillonites, synthetized in our laboratory, for their application in adsorption and coagulation/flocculation processes for the removal of PRM from water. The adsorption-desorption performance of PRM in a raw montmorillonite (Mt) and several organo-montmorillonites (organo-Mt) obtained by different amounts and types of exchanged surfactants (octadecyltrimethylammonium (ODTMA) and didodecyldimethylammonium (DDAB) bromides and benzyltrimethylammonium chloride (BTMA)) was studied...
April 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28444505/occupational-heat-stress-assessment-and-protective-strategies-in-the-context-of-climate-change
#20
Chuansi Gao, Kalev Kuklane, Per-Olof Östergren, Tord Kjellstrom
Global warming will unquestionably increase the impact of heat on individuals who work in already hot workplaces in hot climate areas. The increasing prevalence of this environmental health risk requires the improvement of assessment methods linked to meteorological data. Such new methods will help to reveal the size of the problem and design appropriate interventions at individual, workplace and societal level. The evaluation of occupational heat stress requires measurement of four thermal climate factors (air temperature, humidity, air velocity and heat radiation); available weather station data may serve this purpose...
April 25, 2017: International Journal of Biometeorology
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