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https://www.readbyqxmd.com/read/28323826/apoe-related-risk-of-mild-cognitive-impairment-and-dementia-for-prevention-trials-an-analysis-of-four-cohorts
#1
Jing Qian, Frank J Wolters, Alexa Beiser, Mary Haan, M Arfan Ikram, Jason Karlawish, Jessica B Langbaum, John M Neuhaus, Eric M Reiman, J Scott Roberts, Sudha Seshadri, Pierre N Tariot, Beth McCarty Woods, Rebecca A Betensky, Deborah Blacker
BACKGROUND: With the onset of prevention trials for individuals at high risk for Alzheimer disease, there is increasing need for accurate risk prediction to inform study design and enrollment, but available risk estimates are limited. We developed risk estimates for the incidence of mild cognitive impairment (MCI) or dementia among cognitively unimpaired individuals by APOE-e4 dose for the genetic disclosure process of the Alzheimer's Prevention Initiative Generation Study, a prevention trial in cognitively unimpaired APOE-e4/e4 homozygote individuals...
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28319939/radical-scavenging-activity-of-a-sunscreen-enriched-by-antioxidants-providing-protection-in-the-whole-solar-spectral-range
#2
Carla Souza, Patrícia Maia Campos, Sabine Schanzer, Stephanie Albrecht, Silke B Lohan, Jürgen Lademann, Maxim E Darvin, Martina C Meinke
BACKGROUND/AIM: The main reason for extrinsic skin aging is the negative action of free radicals. The formation of free radicals in the skin has been associated with ultraviolet (UV) exposure and also to visible (VIS) and near-infrared (NIR) irradiations. The aim of the present study was to evaluate the efficacy of a sunscreen in the whole solar range. METHODS: The radical-scavenging activity of a sunscreen in the UV, VIS, and NIR ranges was evaluated using electron paramagnetic resonance spectroscopy...
March 21, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28317167/semiparametric-methods-for-estimation-of-a-nonlinear-exposure-outcome-relationship-using-instrumental-variables-with-application-to-mendelian-randomization
#3
James R Staley, Stephen Burgess
Mendelian randomization, the use of genetic variants as instrumental variables (IV), can test for and estimate the causal effect of an exposure on an outcome. Most IV methods assume that the function relating the exposure to the expected value of the outcome (the exposure-outcome relationship) is linear. However, in practice, this assumption may not hold. Indeed, often the primary question of interest is to assess the shape of this relationship. We present two novel IV methods for investigating the shape of the exposure-outcome relationship: a fractional polynomial method and a piecewise linear method...
March 20, 2017: Genetic Epidemiology
https://www.readbyqxmd.com/read/28300856/halobetasol-propionate-lotion-0-05-provides-superior-hydration-compared-to-halobetasol-propionate-cream-0-05-in-a-double-blinded-study-of-occlusivity-and-hydration
#4
Gary Grove, Charles Zerweck, Tim Houser, Anthony Andrasfay, Bob Gauthier, Charles Holland, Daniel Piacquadio
BACKGROUND: This study measured skin hydration and occlusivity of two test products [halobetasol propionate lotion, 0.05% (HBP Lotion) and Ultravate® (halobetasol propionate) cream, 0.05% (HBP Cream)] at 2, 4, and 6 hours after application to skin test sites previously challenged by dry shaving, which was performed to compromise the integrity of the stratum corneum barrier. METHODS: Trans-epidermal water loss (TEWL), an indicator of skin barrier function, was measured using cyberDERM, inc...
February 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28300793/-estimates-of-target-population-for-pneumococcal-vaccination-in-people-over-50-years-in-catalonia-and-spain
#5
Angel Vila-Córcoles, Olga Ochoa-Gondar, Eva Satué, Cinta de Diego, Marc Vila-Rovira, Manel Jariod
OBJECTIVE: Published data about prevalence of distinct risk condictions for pneumococcal disease is scarce. This study investigated the prevalence of distinct risk conditions for pneumococal disease in Catalonian adults and stimated the potential size of target population for pneumococcal vaccination in Catalonia and Spain. METHODS: Cross-sectional population-based study that included 2,033,465 individuals older than 49 years-old assigned to the Catalonian Health Institute (Catalonia, Spain) at 01/01/2015...
March 15, 2017: Revista Española de Salud Pública
https://www.readbyqxmd.com/read/28300034/-epidemiology-of-urolithiasis-in-spain-review-of-published-demographic-data-in-the-period-1977-2016
#6
Francisco María Sánchez-Martín, Oriol Angerri, Esteban Emiliani, Enver Moncada, José Carpio, Félix Millán, Humberto Villavicencio
OBJECTIVE: Epidemiological data on urolithiasis in Spain have appeared in publications especially local and regional level, with few referrals to Spanish national territory. The aim of this paper is to review and systematize the epidemiological data published on urolithiasis in Spain. METHODS: We reviewed publications in national and international scientific journals, meetings and conferences, and research reports (1977-2016). PubMed search (indexed papers) and manual bibliography search (not indexed works) were performed...
March 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28298396/the-effect-of-increasing-dairy-calcium-intake-of-adolescent-girls-on-changes-in-body-fat-and-weight
#7
Joan M Lappe, Donald J McMahon, Ann Laughlin, Corrine Hanson, Jean Claude Desmangles, Margaret Begley, Misty Schwartz
Background: Overweight is epidemic in adolescents and is a major concern because it tracks into adulthood. Evidence supports the efficacy of high-calcium, high-dairy diets in achieving healthy weight in adults. However, no randomized controlled trials of the effect of dairy food on weight and body fat in adolescents have been reported to our knowledge.Objective: The aim was to determine whether increasing calcium intake to recommended amounts with dairy foods in adolescent girls with habitually low calcium intakes would decrease body fat gain compared with girls who continued their low calcium intake...
March 15, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28295421/effect-of-allergens-and-irritants-on-levels-of-natural-moisturizing-factor-and-corneocyte-morphology
#8
Sjors A Koppes, Suzana Ljubojević Hadžavdić, Ivone Jakasa, Nika Franceschi, Christoph Riethmüller, Ružica Jurakić Tončic, Branka Marinovic, Nidhin Raj, Anthony V Rawlings, Rainer Voegeli, Majella E Lane, Marek Haftek, Monique H W Frings-Dresen, Thomas Rustemeyer, Sanja Kezic
BACKGROUND: The irritant sodium lauryl sulfate (SLS) is known to cause a decrease in the stratum corneum level of natural moisturizing factor (NMF), which in itself is associated with changes in corneocyte surface topography. OBJECTIVE: To explore this phenomenon in allergic contact dermatitis. METHODS: Patch testing was performed on patients with previously positive patch test reactions to potassium dichromate (Cr), nickel sulfate (Ni), methylchloroisothiazolinone (MCI)/methylisothiazolinone (MI), or p-phenylenediamine...
March 14, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28292744/association-between-trial-registration-and-positive-study-findings-cross-sectional-study-epidemiological-study-of-randomized-trials-esort
#9
Ayodele Odutayo, Connor A Emdin, Allan J Hsiao, Mubeen Shakir, Bethan Copsey, Susan Dutton, Virginia Chiocchia, Michael Schlussel, Peter Dutton, Corran Roberts, Douglas G Altman, Sally Hopewell
Objective To assess whether randomised controlled trials (RCTs) that were registered were less likely to report positive study findings compared with RCTs that were not registered and whether the association varied by funding source.Design Cross sectional study.Study sample All primary RCTs published in December 2012 and indexed in PubMed by November 2013. Trial registration was determined based on the report of a trial registration number in published RCTs or the identification of the trial in a search of trial registries...
March 14, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28288631/effects-of-simvastatin-on-serum-adiponectin-a-meta-analysis-of-randomized-controlled-trials
#10
Weibin Chen, Zhuo Huang, Minghui Bi, Xuejing Xu, Nengjiang Zhao
BACKGROUND: Effects of simvastatin on serum level of adiponectin, a protein conferring benefits in both cardiovascular and metabolic system, are not fully determined. METHODS: A meta-analysis of randomized controlled trials (RCTs) was performed. Studies were identified by searching of Pubmed, Embase, and the Cochrane Library databases. Heterogeneity among the RCTs was determined by Cochrane's Q test and I(2) statistics. Meta-analysis was performed with random-effect model or fixed-effect model according to the heterogeneity...
March 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28287597/measuring-and-modeling-contractile-drying-in-human-stratum-corneum
#11
Xue Liu, Guy K German
Stratum corneum (SC) is the most superficial skin layer. Its contact with the external environment means that this tissue layer is subjected to both cleansing agents and daily variations in ambient moisture; both of which can alter the water content of the tissue. Reductions in water content from severe barrier dysfunction or low humidity environments can alter SC stiffness and cause a build-up of drying stresses. In extreme conditions, these factors can cause mechanical rupture of the tissue. We have established a high throughput method of quantifying dynamic changes in the mechanical properties of SC upon drying...
March 1, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28287146/hydrogel-increases-localized-transport-regions-and-skin-permeability-during-low-frequency-ultrasound-treatment
#12
Tatiana Aparecida Pereira, Danielle Nishida Ramos, Renata F V Lopez
Low frequency ultrasound (LFU) enhances skin permeability via the formation of heterogeneous localized transport regions (LTRs). In this work, hydrogels with different zeta potentials were used as the coupling medium for LFU to investigate their contribution to LTR patterns and to the skin penetration of two model drugs, calcein and doxorubicin (DOX). When hydrogels were used, LTRs covering at least a 3-fold greater skin area were observed compared to those resulting from traditional LFU treatment and sodium lauryl sulfate...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28285153/contraceptive-method-and-self-reported-hiv-status-among-women-in-malawi
#13
Jamie E Luster, Abigail Norris Turner, Duna Alkhalaileh, Maria F Gallo
OBJECTIVES: We aimed to describe contraceptive methods used by women in Malawi and determine whether contraceptive use differed by self-reported HIV status. Effective contraception is a primary method of preventing mother-to-child transmission of HIV. STUDY DESIGN: Analysis is based on 12,658 nonpregnant, sexually debuted women ages 15-49 years in the 2010 Malawi Demographic and Health Survey. Analysis was restricted to respondents with contraceptive need (i.e., fecund and did not want a child in the next 12 months) who reported their last HIV test result...
March 8, 2017: Contraception
https://www.readbyqxmd.com/read/28284700/effects-of-dietary-neutral-detergent-fiber-and-starch-ratio-on-rumen-epithelial-cell-morphological-structure-and-gene-expression-in-dairy-cows
#14
L Ma, M Zhao, L S Zhao, J C Xu, J J Loor, D P Bu
This study was designed to investigate the effect of dietary neutral detergent fiber to starch ratio on rumen epithelial morphological structure and gene expression. Eight primiparous dairy cows including 4 ruminally fistulated cows were assigned to 4 total mixed rations with neutral detergent fiber to starch ratios of 0.86, 1.18, 1.63, and 2.34 in a replicated 4 × 4 Latin square design. The duration of each period was 21 d including 14 d for adaptation and 7 d for sampling. Rumen epithelial papillae were collected from the ruminally fistulated cows for morphological structure examination and mRNA expression analysis using quantitative real-time PCR of several genes related to volatile fatty acid absorption and metabolism, and cellular growth...
March 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28278558/discriminatory-ability-of-visceral-adiposity-index-vai-in-diagnosis-of-metabolic-syndrome-a-population-based-study
#15
N Motamed, M R Khonsari, B Rabiee, H Ajdarkosh, G R Hemasi, M R Sohrabi, M Maadi, F Zamani
Background Visceral adiposity index (VAI) has been suggested as an index of visceral adiposity. This study was conducted to determine the discriminatory ability of VAI in diagnosis of metabolic syndrome (MetS). Methods and materials We used the data of 5 312 subjects aged 18-74 years of a cohort study conducted among 6 140 individuals aged 10-90 years in Amol, northern Iran. The city population was divided into 16 strata based on gender and age groups in 10-year intervals. The subjects were randomly selected from each stratum...
March 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28278501/standardization-of-an-in-vitro-model-for-evaluating-the-bioavailability-of-topically-applied-compounds-on-damaged-skin-application-to-sunscreen-analysis
#16
Carine Jacques-Jamin, Corinne Jeanjean-Miquel, Anaïs Domergue, Sandrine Bessou-Touya, Hélène Duplan
BACKGROUND: Information is lacking on the dermal penetration of topically applied formulations on in vitro skin models, under conditions where the stratum corneum (SC) is damaged. Therefore, we have developed a standardized in vitro barrier-disrupted skin model using tape stripping. METHODS: Different tape stripping conditions were evaluated using histology, transepidermal water loss, infrared densitometry, and caffeine absorption. RESULTS: The effects of tape stripping were comparable using pig and human skin...
March 10, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28277415/mortality-risk-stratification-after-traumatic-brain-injury-and-hazard-of-death-with-titrated-hypothermia-in-the-eurotherm3235trial
#17
Peter J D Andrews, Aryelly Rodriguez, Peter Suter, Claire G Battison, Jonathan K J Rhodes, Irene Puddu, Bridget A Harris
OBJECTIVES: Hypothermia reduces intracranial hypertension in patients with traumatic brain injury but was associated with harm in the Eurotherm3235Trial. We stratified trial patients by International Mission for Prognosis and Analysis of Clinical Trials in [Traumatic Brain Injury] (IMPACT) extended model sum scores to determine where the balance of risks lay with the intervention. DESIGN: The Eurotherm3235Trial was a randomized controlled trial, with standardized and blinded outcome assessment...
March 8, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28276896/skin-absorption-of-actinides-influence-of-solvents-or-chelates-on-skin-penetration-ex-vivo
#18
Anissa Tazrart, Marie-Alexandrine Bolzinger, Sylvie Coudert, Stephanie Lamart, Brian W Miller, Jaime F Angulo, Stéphanie Briançon, Nina M Griffiths
PURPOSE: To evaluate skin penetration and retention of americium (Am) and plutonium (Pu), in different chemical forms relevant to the nuclear industry and to treatment by chelation. MATERIALS AND METHODS: Percutaneous penetration of different Am and Pu forms were evaluated using viable pig skin with the Franz cell diffusion system. The behavior of the complex Pu-tributyl phosphate (Pu-TBP), Am or Pu complexed to the chelator Diethylene triamine pentaacetic acid (DTPA) and the effect of dimethyl sulfoxide (DMSO) was assessed...
March 3, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28274820/histamine-induces-kcnq-channel-dependent-gamma-oscillations-in-rat-hippocampus-via-activation-of-the-h1-receptor
#19
Richard Andersson, Dagmar Galter, Daniela Papadia, André Fisahn
Histamine is an aminergic neurotransmitter, which regulates wakefulness, arousal and attention in the central nervous system. Histamine receptors have been the target of efforts to develop pro-cognitive drugs to treat disorders such as Alzheimer's disease and schizophrenia. Cognitive functions including attention are closely associated with gamma oscillations, a rhythmical electrical activity pattern in the 30-80 Hz range, which depends on the synchronized activity of excitatory pyramidal cells and inhibitory fast-spiking interneurons...
March 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28271743/in-situ-sodium-persulfate-calcium-peroxide-oxidation-in-remediation-of-tph-contaminated-soil-in-3d-sand-box
#20
Hao Wu, Lina Sun, Hui Wang, Xiaoxu Wang
The aim of this article was to obtain the application parameters and conditions of in situ sodium persulfate/calcium peroxide oxidation. For the purposes of remediation, soil from a total petroleum hydrocarbons (TPH)-contaminated site was collected and prepared to reflect the actual stratum condition in a newly developed soil remediation modeling apparatus. Application methods of soil mixture, natural infiltration, direct injection and groundwater circulation were used to simulate in situ sodium persulfate oxidation in TPH-contaminated soil...
March 8, 2017: Environmental Technology
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