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https://www.readbyqxmd.com/read/28346882/determination-of-prodrug-treosulfan-and-its-biologically-active-monoepoxide-in-rat-plasma-liver-lungs-kidneys-muscle-and-brain-by-hplc-esi-ms-ms-method
#1
Michał Romański, Anna Kasprzyk, Artur Teżyk, Agnieszka Widerowska, Czesław Żaba, Franciszek Główka
A prodrug treosulfan (TREO) is currently investigated in clinical trials for conditioning prior to hematopoietic stem cell transplantation. Bioanalysis of TREO and its active derivatives, monoepoxide (S,S-EBDM) and diepoxide, in plasma and urine underlay the pharmacokinetic studies of these compounds but cannot explain an organ pharmacological action or toxicity. Recently, distribution of TREO and S,S-EBDM into brain, cerebrospinal fluid, and aqueous humor of the eye has been investigated in animal models and the obtained results presented clinical relevance...
March 18, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28346396/a-pcr-based-molecular-detection-of-strongyloides-stercoralisin-human-stool-samples-from-tabriz-city-iran
#2
Reza Ghasemikhah, Mohammad Amin Tabatabaiefar, Seyed Ali Shariatzadeh, Abbas Shahbazi, Teymour Hazratian
Strongyloides stercoralis is a nematode causing serious infections in immunocompromised patients. In chronically infected patients, the low parasitic content as well as the resemblance of the larvae to several other species make diagnosis basedonmorphology difficult. In the present study, a PCR-based method targeting the internal transcribed sequence 2 (ITS2) of the rDNA region was examined for the molecular detection of S. stercoralis infection from the stool samples. A total of 1800 patients were included...
March 27, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28346351/in-vitro-and-in-vivo-studies-on-the-structural-organization-of-chs3-from-saccharomyces-cerevisiae
#3
Simon Gohlke, Subbaratnam Muthukrishnan, Hans Merzendorfer
Chitin biosynthesis in yeast is accomplished by three chitin synthases (Chs) termed Chs1, Chs2 and Chs3, of which the latter accounts for most of the chitin deposited within the cell wall. While the overall structures of Chs1 and Chs2 are similar to those of other chitin synthases from fungi and arthropods, Chs3 lacks some of the C-terminal transmembrane helices raising questions regarding its structure and topology. To fill this gap of knowledge, we performed bioinformatic analyses and protease protection assays that revealed significant information about the catalytic domain, the chitin-translocating channel and the interfacial helices in between...
March 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28345820/meta-analysis-of-serum-gastrin-releasing-peptide-precursor-as-a-biomarker-for-diagnosis-of-small-cell-lung-cancer
#4
Shui Ping Lv, Yi Wang, Lang Huang, Fei Wang, Jian Guo Zhou, Hu Ma
Background: The serum level of gastrin-releasing peptide precursor (proGRP) is generally? elevated in patients with small cell lung cancer (SCLC). However, the diagnostic sensitivity and specificity of serum proGRP in SCLC cases remains controversial. The study aimed to assess the diagnostic value of this biomarker by meta-analysis. Materials and Methods: The Cochrane, Clinical trials, Pubmed, Web of Science and Embase databases were searched and diagnostic values were calculated or extracted. Statistical analysis was accomplished with RevMan 5...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28344832/in-silico-functional-elucidation-of-uncharacterized-proteins-of-chlamydia-abortus-strain-llg
#5
Gagandeep Singh, Dixit Sharma, Vikram Singh, Jyoti Rani, Francessco Marotta, Manoj Kumar, Gorakh Mal, Birbal Singh
AIM: This study reports structural modeling, molecular dynamics profiling of hypothetical proteins in Chlamydia abortus genome database. METHODOLOGY: The hypothetical protein sequences were extracted from C. abortus LLG Genome Database for functional elucidation using in silico methods. RESULTS: Fifty-one proteins with their roles in defense, binding and transporting other biomolecules were unraveled. Forty-five proteins were found to be nonhomologous to proteins present in hosts infected by C...
March 2017: Future Science OA
https://www.readbyqxmd.com/read/28344515/burnout-among-nurses-working-in-social-welfare-centers-for-the-disabled
#6
Eleni Lahana, Konstantina Papadopoulou, Olga Roumeliotou, Andreas Tsounis, Pavlos Sarafis, Dimitris Niakas
BACKGROUND: In the healthcare sector, we often come across the burnout syndrome. It is an occupational syndrome which causes, physical and emotional exhaustion. More information is needed on the dangers of burnout and how often it occurs in healthcare. The purpose of this study was to investigate burnout and factors associated with the syndrome among nurses working with people that are mentally challenged. METHODS: A cross-sectional survey was conducted, among 180 nurses working in public health centers for the disabled in multiple regions of Greece...
2017: BMC Nursing
https://www.readbyqxmd.com/read/28343678/maxillofacial-prosthetics-training-and-practice-profiles-in-the-united-states
#7
James L Sheets, Judy Chia-Chun Yuan, Cortino Sukotjo, Betsy K Davis, Alvin G Wee
STATEMENT OF PROBLEM: The motivation of maxillofacial prosthodontists to go into fellowship training and specific procedures in maxillofacial prosthetics practice once they have completed training has not been previously evaluated. PURPOSE: The purpose of this study was to survey maxillofacial prosthodontists in the United States to investigate their reasons for pursuing maxillofacial prosthetic training and their practice profiles. MATERIAL AND METHODS: In June 2015, a survey was sent to all US maxillofacial prosthodontists asking for descriptive demographics, their reasoning as to what prompted entrance into a maxillofacial prosthetic program, and their practice pattern...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28342622/an-analysis-of-the-relationship-between-burnout-socio-demographic-and-workplace-factors-and-job-satisfaction-among-emergency-department-health-professionals
#8
Menderes Tarcan, Neşet Hikmet, Benjamin Schooley, Mehmet Top, Gamze Yorgancıoglu Tarcan
INTRODUCTION: Burnout among emergency medical practitioners and personnel negatively affects career satisfaction and job performance and can lead to mental health issues, including anxiety, depression, and suicide. PURPOSE: This study investigated the relationship between the perceptions of burnout and job satisfaction of those working in two different hospital's emergency departments assessing the effect of burnout dimensions and additional factors (age, position, marital status, annual income, employment type, gender, patient encounters, and household economic well-being) on job satisfaction...
April 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28341410/emotional-wellness-of-current-musculoskeletal-radiology-fellows
#9
Jack Porrino, Michael J Mulcahy, Hyojeong Mulcahy, Annemarie Relyea-Chew, Felix S Chew
RATIONALE AND OBJECTIVES: Burnout is a psychological syndrome composed of emotional exhaustion, depersonalization, and sense of lack of personal accomplishment, as a result of prolonged occupational stress. The purpose of our study was to determine the prevalence of burnout among current musculoskeletal radiology fellows and to explore causes of emotional stress. MATERIALS AND METHODS: A 24-item survey was constructed on SurveyMonkey using the Maslach Burnout Inventory...
March 21, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28340906/veterans-treatment-courts-a-case-study-of-their-efficacy-for-veterans-needs
#10
John W Erickson
Veterans Treatment Courts (VTCs) were created to: (1) address issues unique to U.S. Military Veterans; and, (2) where possible, avoid punishing veterans for crimes that may have been committed as a direct result of their mental conditions (e.g., Posttraumatic Stress Disorder (PTSD) and/or Traumatic Brain Injury (TBI)). Little research has been undertaken to ascertain whether VTCs are accomplishing their intended goals. To that end, the present case study examined three operating VTCs in order to determine if they are meeting their objectives...
November 2016: International Journal of Law and Psychiatry
https://www.readbyqxmd.com/read/28340524/controlled-hydrothermal-synthesis-and-photoluminescence-of-nanocrystalline-znga2o4-cr-3-monospheres
#11
Tian Luan, Jinhan Liu, Xiaoxue Yuan, Ji-Guang Li
The hydrothermal synthesis of nanocrystalline ZnGa2O4:Cr(3+) (ZGC) red phosphor monospheres was accomplished in this work, and the effects of system pH, reactant content, reaction time, and citrate anions (Cit(3-)) on the phase and morphology evolution of the product were systematically studied. Under the optimized conditions of Cit(3-)/M = 1.0 molar ratio (M = total cations), pH = 5.0, and 0.2 mmol of Zn(2+), well-dispersed ZGC monospheres with an average diameter of ~454 ± 56 nm (average crystallite size ~15 nm) were successfully obtained via hydrothermal reaction at 180 °C for 18 h...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28339324/mobile-but-connected-harnessing-the-power-of-self-efficacy-and-group-support-for-weight-loss-success-through-mhealth-intervention
#12
Heewon Kim, Meara Faw, Andreas Michaelides
Despite the growing popularity of mHealth applications, their usage outcomes have received limited empirical attention. Drawing on server-level user activity data and an online survey (N = 384), this study examines the use of an mHealth application for weight loss to elucidate the ways in which it can help individuals harness the power of self-efficacy and group support to enact behavior change and accomplish their health goals. The results of structural equation modeling based on 6-month user activity data demonstrated that (a) self-efficacy had a positive impact on persistent food logging in an mHealth application; (b) social support received from a mobile group was positively associated with food logging and group participation; and (c) both food logging and group participation predicted weight loss success...
March 24, 2017: Journal of Health Communication
https://www.readbyqxmd.com/read/28338761/influence-of-polynucleosome-preparation-methods-on-sedimentation-velocity-analysis-of-chromatin
#13
Tomoya Kujirai, Shinichi Machida, Akihisa Osakabe, Hitoshi Kurumizaka
Chromatin dynamics and higher order structures play essential roles in genomic DNA functions. Histone variants and histone post-translational modifications are involved in the regulation of chromatin structure and dynamics, cooperatively with DNA methylation and chromatin binding proteins. Therefore, studies of higher-order chromatin conformations have become important to reveal how genomic DNA is regulated during DNA transcription, replication, recombination and repair. The sedimentation velocity analysis by analytical ultracentrifugation has been commonly used to evaluate the higher-order conformation of in vitro reconstituted polynucleosomes, as model chromatin...
December 22, 2016: Journal of Biochemistry
https://www.readbyqxmd.com/read/28338749/evaluation-of-contact-tracing-activities-during-the-ebola-virus-disease-outbreak-in-guinea-2015
#14
L Reques, I Bolibar, E Chazelle, L Gomes, V Prikazsky, F Banza, M Keita, B Diallo
Objectives: The objective of the study was to present the findings of an audit tool aimed at assessing contact tracing activities during an Ebola outbreak. Methods: The tool was based on Ebola guidelines and observations in the field. It was composed of 38 indicators covering contact tracing preparatives, resources, procedures and results. Results: All contact tracing teams were assessed in Boké and Conakry prefectures (24 supervisors, 22 community workers, 442 contacts) between 1 July and 10 August 2015...
February 24, 2017: International Health
https://www.readbyqxmd.com/read/28338687/remote-c-h-alkylation-and-c-c-bond-cleavage-enabled-by-an-in-situ-generated-palladacycle
#15
Juntao Ye, Zhihao Shi, Theresa Sperger, Yoshifumi Yasukawa, Cian Kingston, Franziska Schoenebeck, Mark Lautens
The direct and selective functionalization of C-H bonds of arenes is one of the most challenging yet valuable aims in organic synthesis. Despite notable recent achievements, a pre-installed directing group proved to be essential in most of the methodologies reported so far. In this context, the use of a transient directing group that can be generated in situ has attracted attention and demonstrated the great potential of this strategy. Here we report the use of an in situ generated palladacycle to accomplish remote-selective C-H alkylation reactions of arenes...
April 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28338449/development-of-a-preoperative-predictive-model-for-major-complications-following-adult-spinal-deformity-surgery
#16
Justin K Scheer, Justin S Smith, Frank Schwab, Virginie Lafage, Christopher I Shaffrey, Shay Bess, Alan H Daniels, Robert A Hart, Themistocles S Protopsaltis, Gregory M Mundis, Daniel M Sciubba, Tamir Ailon, Douglas C Burton, Eric Klineberg, Christopher P Ames
OBJECTIVE The operative management of patients with adult spinal deformity (ASD) has a high complication rate and it remains unknown whether baseline patient characteristics and surgical variables can predict early complications (intraoperative and perioperative [within 6 weeks]). The development of an accurate preoperative predictive model can aid in patient counseling, shared decision making, and improved surgical planning. The purpose of this study was to develop a model based on baseline demographic, radiographic, and surgical factors that can predict if patients will sustain an intraoperative or perioperative major complication...
March 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28338359/optimizing-the-team-for-required-power-during-track-cycling-team-pursuit
#17
Levi Heimans, Wouter R Dijkshoorn, Marco J M Hoozemans, Jos J de Koning
PURPOSE: Since the aim of the men's team pursuit in time trial track cycling is to accomplish a distance of 4000m as fast as possible, optimizing aerodynamic drag can contribute to achieving this goal. The aim of this study is to determine the drafting effect in second, third and fourth position during the team pursuit in track cycling as a function of the team members' individual frontal areas in order to minimize the required power. METHOD: Eight experienced track cyclists of the Dutch national selection performed 39 trials of 3-km in different teams of four cyclists at a constant velocity of 15...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28338280/patients-views-on-their-decision-making-during-inpatient-rehabilitation-after-newly-acquired-spinal-cord-injury-a-qualitative-interview-based-study
#18
Anke Scheel-Sailer, Marcel W Post, Franz Michel, Tatjana Weidmann-Hügle, Ruth Baumann Hölzle
INTRODUCTION: Involving patients in decision making is a legal requirement in many countries, associated with better rehabilitation outcomes, but not easily accomplished during initial inpatient rehabilitation after severe trauma. Providing medical treatment according to the principles of shared decision making is challenging as a point in case for persons with spinal cord injury (SCI). OBJECTIVES: The aim of this study was to retrospectively explore the patients' views on their participation in decision making during their first inpatient rehabilitation after onset of SCI, in order to optimize treatment concepts...
March 24, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28337321/prototypic-18-f-labeled-argininamide-type-neuropeptide-y-y1r-antagonists-as-tracers-for-pet-imaging-of-mammary-carcinoma
#19
Max Keller, Simone Maschauer, Albert Brennauer, Philipp Tripal, Norman Koglin, Ralf Dittrich, Günther Bernhardt, Torsten Kuwert, Hans-Jürgen Wester, Armin Buschauer, Olaf Prante
The neuropeptide Y (NPY) Y1 receptor (Y1R) selective radioligand (R)-N(α)-(2,2-diphenylacetyl)-N(ω)-[4-(2-[(18)F]fluoropropanoylamino)butyl]aminocarbonyl-N-(4-hydroxybenzyl)argininamide ([(18)F]23), derived from the high-affinity Y1R antagonist BIBP3226, was developed for imaging studies of Y1R-positive tumors. Starting from the argininamide core bearing amine-functionalized spacer moieties, a series of fluoropropanoylated and fluorobenzoylated derivatives was synthesized and studied for Y1R affinity. The fluoropropanoylated derivative 23 displayed high affinity (Ki = 1...
March 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28337186/genotypes-associated-with-listeria-monocytogenes-isolates-displaying-impaired-or-enhanced-tolerances-to-cold-salt-acid-or-desiccation-stress
#20
Patricia Hingston, Jessica Chen, Bhavjinder K Dhillon, Chad Laing, Claire Bertelli, Victor Gannon, Taurai Tasara, Kevin Allen, Fiona S L Brinkman, Lisbeth Truelstrup Hansen, Siyun Wang
The human pathogen Listeria monocytogenes is a large concern in the food industry where its continuous detection in food products has caused a string of recalls in North America and Europe. Most recognized for its ability to grow in foods during refrigerated storage, L. monocytogenes can also tolerate several other food-related stresses with some strains possessing higher levels of tolerances than others. The objective of this study was to use a combination of phenotypic analyses and whole genome sequencing to elucidate potential relationships between L...
2017: Frontiers in Microbiology
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