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https://www.readbyqxmd.com/read/28445303/lifetime-and-recent-alcohol-use-and-bone-mineral-density-in-adults-with-hiv-infection-and-substance-dependence
#1
Alicia S Ventura, Michael R Winter, Timothy C Heeren, Meg M Sullivan, Alexander Y Walley, Michael F Holick, Gregory J Patts, Seville M Meli, Jeffrey H Samet, Richard Saitz
Low bone mineral density (BMD) is common in people living with HIV infection (PLWH), increasing fracture risk. Alcohol use is also common in PLWH and is a modifiable risk factor for both HIV disease progression and low BMD. In PLWH, alcohol's effect on BMD is not well understood.We studied adult PLWH with substance dependence. We measured lifetime alcohol use (kg) and recent (i.e., past 30-day) alcohol use (categorized as: abstinent, low risk, or high risk). In adjusted multivariable regression analyses, we tested associations between lifetime and recent alcohol use and (i) mean BMD (g/cm) at the femoral neck, total hip, and lumbar spine and (ii) low BMD diagnosis (i...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445223/the-four-tier-continuum-of-academic-and-behavioral-support-4t-cabs-model-an-integrated-model-for-medical-student-success
#2
Karen M Stegers-Jager, Janke Cohen-Schotanus, Axel P N Themmen
Not all students cope successfully with the demands of medical school, and students' struggles may result in study delay or dropout. To prevent these outcomes, medical schools need to identify students who are experiencing academic difficul ;ties and provide them with timely interventions through access to support programs. Although the importance of early identification and intervention is well recognized, less is known about successful strategies for identifying and supporting struggling students.Building on the literature and their own empirical findings, the authors propose an integrated, school-wide model for medical student success comprising a continuum of academic and behavioral support...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28444468/a-new-statistical-model-for-analyzing-rating-scale-data-pertaining-to-word-meaning
#3
Felipe Munoz-Rubke, Karen Kafadar, Karin H James
The concrete-abstract categorization scheme has guided several research programs. A popular way to classify words into one of these categories is to calculate a word's mean value in a Concreteness or Imageability rating scale. However, this procedure has several limitations. For instance, results can be highly distorted by outliers, ascribe differences among words when none may exist, and neglect rating trends in participants. We suggest using an alternative procedure to analyze rating scale data called median polish analysis (MPA)...
April 25, 2017: Psychological Research
https://www.readbyqxmd.com/read/28443678/outcomes-along-the-hiv-care-continuum-among-undocumented-immigrants-in-clinical-care
#4
Jonathan Ross, Uriel R Felsen, Chinazo O Cunningham, Viraj V Patel, David B Hanna
HIV-infected undocumented immigrants face unique barriers to care yet little is known about their clinical outcomes. We performed a retrospective cohort study of HIV-infected adults in clinical care from 2006-2014 at a large academic medical center in a setting where medical insurance is available to HIV-infected undocumented immigrants. Undocumented status was assessed based on Social Security number and insurance status and verified through medical chart review. Using Poisson regression models, we compared undocumented and documented patients with respect to retention in care (≥ 2 HIV-related lab tests ≥ 90 days apart), antiretroviral therapy (ART) prescription (≥ 3 active antiretroviral agents prescribed in a year) and viral suppression (HIV RNA <200 copies/ml for the last measured viral load) for each year in care...
April 26, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28443352/gff-mdi-for-the-improvement-of-lung-function-in-copd-a-look-at-the-pinnacle-1-and-pinnacle-2-data-and-beyond
#5
Klaus F Rabe
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death globally and incidence rates are continuing to rise. Long-acting bronchodilators are the foundation on which current pharmacological approaches to COPD management are built, with long-acting muscarinic antagonists (LAMAs) and long-acting β2-agonists (LABAs) recommended across the spectrum of the disease continuum. Combining LAMAs and LABAs provides additional lung function improvements and relief of patient symptoms compared with either therapy alone...
April 26, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28443272/3-dimensional-facial-analysis-facing-precision-public-health
#6
Gareth Baynam, Alicia Bauskis, Nicholas Pachter, Lyn Schofield, Hedwig Verhoef, Richard L Palmer, Stefanie Kung, Petra Helmholz, Michael Ridout, Caroline E Walker, Anne Hawkins, Jack Goldblatt, Tarun S Weeramanthri, Hugh J S Dawkins, Caron M Molster
Precision public health is a new field driven by technological advances that enable more precise descriptions and analyses of individuals and population groups, with a view to improving the overall health of populations. This promises to lead to more precise clinical and public health practices, across the continuum of prevention, screening, diagnosis, and treatment. A phenotype is the set of observable characteristics of an individual resulting from the interaction of a genotype with the environment. Precision (deep) phenotyping applies innovative technologies to exhaustively and more precisely examine the discrete components of a phenotype and goes beyond the information usually included in medical charts...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28440083/systems-metabolomics-for-prediction-of-metabolic-syndrome
#7
Estelle Pujos-Guillot, Marion Brandolini, Mélanie Pétéra, Dhouha Grissa, Charlotte Joly, Bernard Lyan, Eléonore Herquelot, Sébastien Czernichow, Marie Zins, Marcel Goldberg, Blandine Comte
The evolution of human health is a continuum of transitions, involving multifaceted processes at multiple levels and there is an urgent need for integrative biomarkers that can characterize and predict progression towards disease development. The objective of this work was to perform a systems metabolomics approach to predict metabolic syndrome (MetS) development. A case-control design was used within the French occupational GAZEL cohort (n=112 males: discovery study; n=94: replication/validation study). Our integrative strategy was to combine untargeted metabolomics with clinical, sociodemographic and food habit parameters to describe early phenotypes and build multidimensional predictive models...
April 25, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28440068/correlates-of-verbal-and-physical-aggression-among-patrons-of-licensed-venues-in-australia
#8
Shannon Hyder, Kerri Coomber, Amy Pennay, Nicolas Droste, Ashlee Curtis, Richelle Mayshak, Tina Lam, William Gilmore, Tanya Chikritzhs, Peter G Miller
INTRODUCTION AND AIMS: The current study aimed to examine the association between patron demographics and substance use, and experiences of verbal and physical aggressive incidents within the last 3 months among patrons of night-time entertainment precincts (NEP) in Australia. DESIGN AND METHODS: Patron interviews (n = 4216) were conducted around licensed venues in the NEPs of five Australian cities. Seven correlates of verbal and physical aggressive incidents were examined: gender, age, occupation, blood alcohol concentration, pre-drinking, energy drink use and illicit drug use in the current session...
April 25, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28439351/residents-exposure-to-educational-experiences-in-facilitating-hospital-discharges
#9
Eric Young, Chad Stickrath, Monica McNulty, Aaron J Calderon, Elizabeth Chapman, Jed D Gonzalo, Ethan F Kuperman, Max Lopez, Christopher J Smith, Joseph R Sweigart, Cecelia N Theobald, Robert E Burke
BACKGROUND: There is an incomplete understanding of the most effective approaches for motivating residents to adopt guideline-recommended practices for hospital discharges. OBJECTIVE: We evaluated internal medicine (IM) residents' exposure to educational experiences focused on facilitating hospital discharges and compared those experiences based on correlations with residents' perceived responsibility for safely transitioning patients from the hospital. METHODS: A cross-sectional, multi-center survey of IM residents at 9 US university- and community-based training programs in 2014-2015 measured exposure to 8 transitional care experiences, their perceived impact on care transitions attitudes, and the correlation between experiences and residents' perceptions of postdischarge responsibility...
April 2017: Journal of Graduate Medical Education
https://www.readbyqxmd.com/read/28439225/magnitude-codes-for-cross-modal-working-memory-in-the-primate-frontal-association-cortex
#10
REVIEW
Andreas Nieder
Quantitative features of stimuli may be ordered along a magnitude continuum, or line. Magnitude refers to parameters of different types of stimulus properties. For instance, the frequency of a sound relates to sensory and continuous stimulus properties, whereas the number of items in a set is an abstract and discrete property. In addition, within a stimulus property, magnitudes need to be processed not only in one modality, but across multiple modalities. In the sensory domain, for example, magnitude applies to both to the frequency of auditory sounds and tactile vibrations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28439080/ets-related-gene-mediated-androgen-receptor-aggregation-and-endoplasmic-reticulum-stress-in-prostate-cancer-development
#11
Taduru L Sreenath, Shiela S Macalindong, Natallia Mikhalkevich, Shashwat Sharad, Ahmed Mohamed, Denise Young, Talaibek Borbiev, Charles Xavier, Rishita Gupta, Muhammad Jamal, Kevin Babcock, Shyh-Han Tan, Marja T Nevalainen, Albert Dobi, Gyorgy Petrovics, Isabell A Sesterhenn, Inger L Rosner, Charles J Bieberich, Peter Nelson, Valeri Vasioukhin, Shiv Srivastava
Mechanistic studies of deregulated ERG in prostate cancer and other cancers continue to enhance its role in cancer biology and its utility as a biomarker and therapeutic target. Here, we show that ERG, through its physical interaction with androgen receptor, induces AR aggregation and endoplasmic reticulum stress in the prostate glands of ERG transgenic mice. Histomorphological alterations and the expression of ER stress sensors Atf6, Ire1α, Perk, their downstream effectors Grp78/BiP and eIF2α in ERG transgenic mouse prostate glands indicate the presence of chronic ER stress...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28437605/aqueously-released-graphene-oxide-embedded-in-epoxy-resin-exhibits-different-characteristics-and-phytotoxicity-of-chlorella-vulgaris-from-the-pristine-form
#12
Xiangang Hu, Weilu Kang, Li Mu
The environmental release of nanoparticles is attracting increasing attention. Graphene oxide (GO) embedded in epoxy resin (ER) is a popular composite that has been used in various fields, but the environmental release of GO-ER composites and the effects on organisms in the environment remain unknown. The present work found that GO-ER composites in water for 2-7 days resulted in the release of 0.3-2.1% GO-ER at nanoscale (2-3 nm thickness and approximately 70-130 nm lateral length). Interestingly, pristine GO quenched 30-45% hydroxyl and 12% nitroxide free radicals, whereas this capacity was not observed for the released particles from GO-ER...
April 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28436996/continuum-electrostatic-calculation-on-bovine-rhodopsin-protonation-and-the-effect-of-the-membrane-potential
#13
Elisa Bombarda, G Matthias Ullmann
In this work, we calculate the protonation probabilities of titratable residues of bovine rhodopsin using the Poisson-Boltzmann equation. We also consider the influence of the membrane potential. Our results indicate that at physiological pH, the titratable groups directly involved in photosensing, namely Glu113, Glu181 and the retinal Schiff base, are charged. In contrast, the residues Asp83, Glu122, and His211, which are buried in the membrane, are uncharged. However, since these later residues are localized in the middle of the membrane, they are exposed to the membrane potential more strongly, which may have important functional implications...
April 24, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28436757/bilingualism-and-age-are-continuous-variables-that-influence-executive-function
#14
Sara Incera, Conor T McLennan
We analyzed the effects of bilingualism and age on executive function. We examined these variables along a continuum, as opposed to dichotomizing them. We investigated the impact that bilingualism and age have on two measures of executive control (Stroop and Flanker). The mouse-tracking paradigm allowed us to examine the continuous dynamics of the responses as participants completed each trial. First, we found that the Stroop effect was reduced with younger age and higher levels of bilingualism; however, no Bilingualism by Age interaction emerged...
April 24, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28436244/a-systematic-review-and-meta-synthesis-of-the-qualitative-literature-exploring-the-experiences-and-quality-of-life-of-survivors-of-a-cardiac-arrest
#15
Gunilla Haydon, Pamela van der Riet, Kerry Inder
BACKGROUND: Survival following cardiac arrest and subsequent cardiopulmonary resuscitation (CPR) is increasing worldwide, mainly due to greater awareness of the symptoms of cardiac events and an increased attention to CPR training. Although patient outcomes remain unpredictable and quantitative studies suggest that the overall quality of life (QOL) is acceptable, it is valuable to synthesise qualitative studies exploring these phenomena in depth, providing a deeper knowledge of survivors' experiences and QOL...
April 1, 2017: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28435962/dissociation-of-cyclopropane-in-double-ionization-continuum
#16
Shabnam Oghbaie, Mathieu Gisselbrecht, Erik P Månsson, Joakim Laksman, Christian Stråhlman, Anna Sankari, Stacey L Sorensen
Dissociative double photoionization of cyclopropane is studied in the inner-valence region using tunable synchrotron radiation. With the aid of ab initio quantum chemical calculations the energies of dication states and their favoured fragmentation pathways are determined. These are compared to the experimental appearance energies of two-body fragmentation processes and to the kinetic energy released upon dissociation. Photon energy dependent state-selective dissociation in the 25-35 eV range is found. Calculations of dissociation pathways suggest that cyclopropane ring-deformation is selectively triggered at certain photon energies...
April 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28434101/predicting-dream-recall-eeg-activation-during-nrem-sleep-or-shared-mechanisms-with-wakefulness
#17
Serena Scarpelli, Aurora D'Atri, Anastasia Mangiaruga, Cristina Marzano, Maurizio Gorgoni, Cinzia Schiappa, Michele Ferrara, Luigi De Gennaro
The common knowledge of a uniqueness of REM sleep as a privileged scenario of dreaming still persists, although consolidated empirical evidence shows that the assumption that dreaming is just an epiphenomenon of REM sleep is no longer tenable. However, the brain mechanisms underlying dream generation and its encoding in memory during NREM sleep are still mostly unknown. In fact, only few studies have investigated on the mechanisms of dream phenomenology related to NREM sleep. For this reason, our study is specifically aimed to elucidate the electrophysiological (EEG) correlates of dream recall (DR) upon NREM sleep awakenings...
April 22, 2017: Brain Topography
https://www.readbyqxmd.com/read/28434009/hypoxic-ischaemic-encephalopathy-and-the-blood-brain-barrier-in-neonates
#18
Wei Ling Amelia Lee, Adina T Michael-Titus, Divyen K Shah
This review aims to highlight a possible relationship between hypoxic-ischaemic encephalopathy (HIE) and the disruption of the blood-brain barrier (BBB). Inflammatory reactions perpetuate a large proportion of cerebral injury. The extent of injury noted in HIE is not only determined by the biochemical cascades that trigger the apoptosis-necrosis continuum of cell death in the brain parenchyma, but also by the breaching of the BBB by pro-inflammatory factors. We examine the changes that contribute to the breakdown of the BBB that occur during HIE at a macroscopic, cellular, and molecular level...
April 22, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28433392/quantifying-rates-of-cell-migration-and-cell-proliferation-in-co-culture-barrier-assays-reveals-how-skin-and-melanoma-cells-interact-during-melanoma-spreading-and-invasion
#19
Parvathi Haridas, Catherine J Penington, Jacqui A McGovern, D L Sean McElwain, Matthew J Simpson
Malignant spreading involves the migration of cancer cells amongst other native cell types. For example, in vivo melanoma invasion involves individual melanoma cells migrating through native skin, which is composed of several distinct subpopulations of cells. Here, we aim to quantify how interactions between melanoma and fibroblast cells affect the collective spreading of a heterogeneous population of these cells in vitro. We perform a suite of circular barrier assays that includes: (i) monoculture assays with fibroblast cells; (ii) monoculture assays with SK-MEL-28 melanoma cells; and (iii) a series of co-culture assays initiated with three different ratios of SK-MEL-28 melanoma cells and fibroblast cells...
April 19, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28433036/an-eqt-based-cdft-approach-for-thermodynamic-properties-of-confined-fluid-mixtures
#20
M H Motevaselian, N R Aluru
We present an empirical potential-based quasi-continuum theory (EQT) to predict the structure and thermodynamic properties of confined fluid mixtures. The central idea in the EQT is to construct potential energies that integrate important atomistic details into a continuum-based model such as the Nernst-Planck equation. The EQT potentials can be also used to construct the excess free energy functional, which is required for the grand potential in the classical density functional theory (cDFT). In this work, we use the EQT-based grand potential to predict various thermodynamic properties of a confined binary mixture of hydrogen and methane molecules inside graphene slit channels of different widths...
April 21, 2017: Journal of Chemical Physics
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