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https://www.readbyqxmd.com/read/28550810/rigid-aromatic-linking-moiety-in-cationic-lipids-for-enhanced-gene-transfection-efficiency
#1
Bing Wang, Rui-Mo Zhao, Ji Zhang, Yan-Hong Liu, Zheng Huang, Qing-Ying Yu, Xiao-Qi Yu
Although numerous cationic lipids have been developed as non-viral gene vectors, the structure-activity relationship (SAR) of these materials remains unclear and needs further investigation. In this work, a series of lysine-derived cationic lipids containing linkages with different rigidity were designed and synthesized. SAR studies showed that lipids with rigid aromatic linkage could promote the formation of tight liposomes and enhance DNA condensation, which is essential for the gene delivery process. These lipids could give much higher transfection efficiency than those containing more flexible aliphatic linkage in various cell lines...
May 17, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28550750/mobile-phone-conversations-listening-to-music-and-quiet-electric-cars-are-traffic-sounds-important-for-safe-cycling
#2
A Stelling-Konczak, G P van Wee, J J F Commandeur, M Hagenzieker
Listening to music or talking on the phone while cycling as well as the growing number of quiet (electric) cars on the road can make the use of auditory cues challenging for cyclists. The present study examined to what extent and in which traffic situations traffic sounds are important for safe cycling. Furthermore, the study investigated the potential safety implications of limited auditory information caused by quiet (electric) cars and by cyclists listening to music or talking on the phone. An Internet survey among 2249 cyclists in three age groups (16-18, 30-40 and 65-70year old) was carried out to collect information on the following aspects: 1) the auditory perception of traffic sounds, including the sounds of quiet (electric) cars; 2) the possible compensatory behaviours of cyclists who listen to music or talk on their mobile phones; 3) the possible contribution of listening to music and talking on the phone to cycling crashes and incidents...
May 24, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28550657/scoring-best-worst-data-in-unbalanced-many-item-designs-with-applications-to-crowdsourcing-semantic-judgments
#3
Geoff Hollis
Best-worst scaling is a judgment format in which participants are presented with a set of items and have to choose the superior and inferior items in the set. Best-worst scaling generates a large quantity of information per judgment because each judgment allows for inferences about the rank value of all unjudged items. This property of best-worst scaling makes it a promising judgment format for research in psychology and natural language processing concerned with estimating the semantic properties of tens of thousands of words...
May 27, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28550505/neuro-oncology-family-caregivers-view-on-keeping-track-of-care-issues-using-ehealth-systems-it-s-a-question-of-time
#4
Florien W Boele, Cornelia F van Uden-Kraan, Karen Hilverda, Jason Weimer, Heidi S Donovan, Jan Drappatz, Frank S Lieberman, Irma Verdonck-de Leeuw, Paula R Sherwood
Primary brain tumors (PBTs) are rare but have a great impact on both patient and family caregiver wellbeing. Supporting caregivers can help them to continue their caregiving activities to maintain the patients' best possible level of quality of life. Efforts to improve PBT caregiver wellbeing should take into account country- or culture-specific differences in care issues and supportive care needs to serve larger caregiver groups. We aimed to explore PBT caregivers' satisfaction with the current supportive care provision, as well as their thoughts on monitoring their care issues with both paper-based and digital instruments...
May 26, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28550462/a-case-control-study-of-the-risk-factors-for-obstetric-fistula-in-tigray-ethiopia
#5
L Lewis Wall, Shewaye Belay, Tesfahun Haregot, Jonathan Dukes, Eyoel Berhan, Melaku Abreha
INTRODUCTION AND HYPOTHESIS: We tested the null hypothesis that there were no differences between patients with obstetric fistula and parous controls without fistula. METHODS: A unmatched case-control study was carried out comparing 75 women with a history of obstetric fistula with 150 parous controls with no history of fistula. Height and weight were measured for each participant, along with basic socio-demographic and obstetric information. Descriptive statistics were calculated and differences between the groups were analyzed using Student's t test, Mann-Whitney U test where appropriate, and Chi-squared or Fisher's exact test, along with backward stepwise logistic regression analyses to detect predictors of obstetric fistula...
May 26, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28550420/associations-between-common-diseases-and-work-ability-and-sick-leave-among-health-care-workers
#6
Sophie van den Berg, Alex Burdorf, Suzan J W Robroek
PURPOSE: This study investigates whether common diseases, i.e., musculoskeletal diseases (MSD), cardiovascular diseases (CVD), mental disorders (MD), and respiratory diseases (RD), influence work ability and sick leave and whether lifestyle-related factors, and psychosocial and physical work-related factors are associated with low work ability and sick leave. METHODS: In a cross-sectional study among 8364 Dutch health care employees, self-reported information was acquired concerning common diseases, lifestyle-related factors, psychosocial and physical work-related factors, work ability, and sick leave...
May 26, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28550080/two-phosphate-targets-in-end-stage-renal-disease-trial-target-a-randomized-controlled-trial
#7
Ron Wald, Christian G Rabbat, Louis Girard, Amit X Garg, Karthik Tennankore, Jessica Tyrwhitt, Andrew Smyth, Andrea Rathe-Skafel, Peggy Gao, Andrea Mazzetti, Jackie Bosch, Andrew T Yan, Patrick Parfrey, Braden J Manns, Michael Walsh
BACKGROUND AND OBJECTIVES: Hyperphosphatemia is common among recipients of maintenance dialysis and is associated with a higher risk of mortality and cardiovascular events. A large randomized trial is needed to determine whether lowering phosphate concentrations with binders improves patient-important outcomes. To inform such an effort we conducted a pilot randomized controlled trial. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a randomized controlled trial of prevalent hemodialysis recipients already receiving calcium carbonate as a phosphate binder at five Canadian centers between March 31, 2014 and October 2, 2014...
May 26, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28550007/associations-between-maternal-depressive-symptoms-and-nonresponsive-feeding-styles-and-practices-in-mothers-of-young-children-a-systematic-review
#8
Ana Cristina Lindsay, Tatiana Mesa, Mary L Greaney, Sherrie F Wallington, Julie A Wright
BACKGROUND: Childhood obesity is a significant global public health problem due to increasing rates worldwide. Growing evidence suggests that nonresponsive parental feeding styles and practices are important influences on children's eating behaviors and weight status, especially during early childhood. Therefore, understanding parental factors that may influence nonresponsive parental feeding styles and practices is significant for the development of interventions to prevent childhood obesity...
May 26, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28550003/an-mhealth-framework-to-improve-birth-outcomes-in-benue-state-nigeria-a-study-protocol
#9
Echezona Edozie Ezeanolue, Semiu Olatunde Gbadamosi, John Olajide Olawepo, Juliet Iwelunmor, Daniel Sarpong, Chuka Eze, Amaka Ogidi, Dina Patel, Chima Onoka
BACKGROUND: The unprecedented coverage of mobile technology across the globe has led to an increase in the use of mobile health apps and related strategies to make health information available at the point of care. These strategies have the potential to improve birth outcomes, but are limited by the availability of Internet services, especially in resource-limited settings such as Nigeria. OBJECTIVE: Our primary objective is to determine the feasibility of developing an integrated mobile health platform that is able to collect data from community-based programs, embed collected data into a smart card, and read the smart card using a mobile phone-based app without the need for Internet access...
May 26, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28549934/in-vitro-metabolomic-approaches-to-investigating-the-potential-biological-effects-of-phenolic-compounds-an-update
#10
REVIEW
Úrsula Catalán, Laura Barrubés, Rosa Maria Valls, Rosa Solà, Laura Rubió
Dietary phenolic compounds (PCs) have been receiving interest for their presumed roles in disease prevention. However, there is a lack of studies on the underlying molecular mechanisms. In this regard, in vitro metabolomic approaches are suitable for the investigation of the molecular changes in response to PC exposure. Up to date, the biological effects of PCs have only been examined for PCs from rosemary (Rosmarinus officinalis), olive oil, and resveratrol using cell-based metabolomic approach, although transcriptomic and/or proteomic studies have also been conducted in the same in vitro cell experiment in some cases...
May 23, 2017: Genomics, Proteomics & Bioinformatics
https://www.readbyqxmd.com/read/28549921/two-representations-of-a-high-dimensional-perceptual-space
#11
Jonathan D Victor, Syed M Rizvi, Mary M Conte
A perceptual space is a mental workspace of points in a sensory domain that supports similarity and difference judgments and enables further processing such as classification and naming. Perceptual spaces are present across sensory modalities; examples include colors, faces, auditory textures, and odors. Color is perhaps the best-studied perceptual space, but it is atypical in two respects. First, the dimensions of color space are directly linked to the three cone absorption spectra, but the dimensions of generic perceptual spaces are not as readily traceable to single-neuron properties...
May 23, 2017: Vision Research
https://www.readbyqxmd.com/read/28549867/integrated-testing-strategies-can-be-optimal-for-chemical-risk-classification
#12
Marko Raseta, Jon Pitchford, James Cussens, John Doe
There is an urgent need to refine strategies for testing the safety of chemical compounds. This need arises both from the financial and ethical costs of animal tests, but also from the opportunities presented by new in-vitro and in-silico alternatives. Here we explore the mathematical theory underpinning the formulation of optimal testing strategies in toxicology. We show how the costs and imprecisions of the various tests, and the variability in exposures and responses of individuals, can be assembled rationally to form a Markov Decision Problem...
May 23, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28549757/mobile-phone-applications-in-parkinson-s-disease-a-systematic-review
#13
M Linares-Del Rey, L Vela-Desojo, R Cano-de la Cuerda
INTRODUCTION: Parkinson's disease (PD) is the second most common neurodegenerative disease. However, diagnosing, assessing, and treating these patients is a complex process requiring continuous monitoring. In this context, smartphones may be useful in the management of patients with PD. OBJECTIVE: The purpose of this study is to perform a systematic review of the literature addressing the use of mobile phone applications (apps) in PD. MATERIALS AND METHODS: We conducted a literature search of articles published in English or Spanish between 2011 and 2016 analysing or validating apps specifically designed for or useful in PD...
May 23, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28549742/a-qualitative-exploratory-study-of-nurses-decision-making-when-interrupted-during-medication-administration-within-the-paediatric-intensive-care-unit
#14
Rachel A Bower, Jane E Coad, Joseph C Manning, Theresa A Pengelly
OBJECTIVE: In the paediatric intensive care unit (PICU), medication administration is challenging. Empirical studies demonstrate that interruptions occur frequently and that nurses are fundamental in the delivery of medication. However, little is known about nurse's decision making when interrupted during medication administration. Therefore, the objective is to understand decision making when interrupted during medication administration within the PICU. RESEARCH DESIGN: A qualitative study incorporating non-participant observation and audio recorded semi-structured interviews...
May 23, 2017: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
https://www.readbyqxmd.com/read/28549520/-taking-over-somebody-s-life-experiences-of-surrogate-decision-makers-in-the-surgical-intensive-care-unit
#15
Elizabeth J Lilley, Megan A Morris, Nicholas Sadovnikoff, Jamahal M Luxford, Navin R Changoor, Anna Bystricky, Angela M Bader, Zara Cooper
BACKGROUND: Impaired capacity of patients necessitates the use of surrogates to make decisions on behalf of patients. Little is known about surrogate decision-making in the surgical intensive care unit, where the decline to critical illness is often unexpected. We sought to explore surrogate experiences with decision-making in the surgical intensive care unit. METHODS: This qualitative study was performed at 2 surgical intensive care units at a single, tertiary, academic hospital Surrogate decision-makers who had made a major medical decision for a patient in the surgical intensive care unit were identified and enrolled prospectively...
May 23, 2017: Surgery
https://www.readbyqxmd.com/read/28549471/the-shared-health-appointments-and-reciprocal-enhanced-support-shares-study-study-protocol-for-a-randomized-trial
#16
Michele Heisler, Jennifer Burgess, Jeffrey Cass, John F Chardos, Alexander B Guirguis, Sean M Jeffery, Lorrie A Strohecker, Adam S Tremblay, Wen-Chih Wu, Donna M Zulman
BACKGROUND: Diabetes shared medical appointments (SMAs) and reciprocal peer support programs have been found in efficacy trials to help adults with diabetes improve their self-management and achieve short-term gains in clinical and patient-centered outcomes. In order to translate this evidence to system-level interventions, there is a need for large-scale, pragmatic trials that examine the effectiveness, implementation, and costs of SMAs and reciprocal peer support across diverse settings...
May 26, 2017: Trials
https://www.readbyqxmd.com/read/28549463/factors-associated-with-length-of-stay-following-trans-catheter-aortic-valve-replacement-a-multicenter-study
#17
Yaron Arbel, Nevena Zivkovic, Dhruven Mehta, Sam Radhakrishnan, Stephen E Fremes, Effat Rezaei, Asim N Cheema, Sami Al-Nasser, Ariel Finkelstein, Harindra C Wijeysundera
BACKGROUND: Most patients undergoing Transcatheter aortic valve implantation (TAVR) are elderly with significant co-morbidities and there is limited information available regarding factors that influence length of stay (LOS) post-procedure. The aim of this study was to identify the patient, and procedural factors that affect post-TAVR LOS using a contemporary multinational registry. METHODS: We conducted a retrospective cohort study, with patients recruited from three high volume tertiary institutions...
May 26, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28549446/-gnparser-a-powerful-parser-for-scientific-names-based-on-parsing-expression-grammar
#18
Dmitry Y Mozzherin, Alexander A Myltsev, David J Patterson
BACKGROUND: Scientific names in biology act as universal links. They allow us to cross-reference information about organisms globally. However variations in spelling of scientific names greatly diminish their ability to interconnect data. Such variations may include abbreviations, annotations, misspellings, etc. Authorship is a part of a scientific name and may also differ significantly. To match all possible variations of a name we need to divide them into their elements and classify each element according to its role...
May 26, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28549399/a-systematic-review-investigating-psychosocial-aspects-of-egg-sharing-in-the-united-kingdom-and-their-potential-effects-on-egg-donation-numbers
#19
Timothy Bracewell-Milnes, Srdjan Saso, Hossam Abdalla, Meen-Yau Thum
This review aims to provide an up-to-date knowledge of the psychosocial aspects of egg donation from the perspectives of the egg share donor and their recipient. It explores the motives, experiences and attitudes of egg sharers and their views towards donor anonymity and disclosure. Conclusions are made on how these findings can guide clinical practice and improve egg sharing numbers. A systematic search of peer-reviewed journals of four computerized databases was undertaken. Eleven studies were included in the review...
May 26, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28549368/developing-population-models-a-systematic-approach-for-pesticide-risk-assessment-using-herbaceous-plants-as-an-example
#20
Amelie Schmolke, Katherine E Kapo, Pamela Rueda-Cediel, Pernille Thorbek, Richard Brain, Valery Forbes
Population models are used as tools in species management and conservation and are increasingly recognized as important tools in pesticide risk assessments. A wide variety of population model applications and resources on modeling techniques, evaluation and documentation can be found in the literature. In this paper, we add to these resources by introducing a systematic, transparent approach to developing population models. The decision guide that we propose is intended to help model developers systematically address data availability for their purpose and the steps that need to be taken in any model development...
May 22, 2017: Science of the Total Environment
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