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https://www.readbyqxmd.com/read/28645188/temporal-variation-of-the-microbiome-is-dependent-on-body-region-in-a-wild-mammal-tamiasciurus-hudsonicus
#1
Colleen B Bobbie, Nadia C S Mykytczuk, Albrecht I Schulte-Hostedde
Microbial communities are increasingly being recognized as important to host health in wild mammals, but how these communities are characterized can have important consequences on the results of these studies. Previous research has explored temporal variation in microbial communities in humans and lab mammals, but few have investigated how microbiomes fluctuate in wild populations and none have examined the temporal dynamics of these fluctuations in different body regions on a wild mammal. Using Illumina MiSeq sequencing of the V3-V4 16S rRNA gene regions, we characterized the buccal and gut microbiomes of wild North American red squirrels, Tamiasciurus hudsonicus, to measure changes in these two microbiomes over short (< 2 weeks), medium (2-4 weeks) and long (> 1 month) term sampling periods...
June 22, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28645090/the-impact-of-tidal-and-mesoscale-eddy-advection-on-the-long-term-dispersion-of-99-tc-from-sellafield
#2
Magne Simonsen, Øyvind Saetra, Pål Erik Isachsen, Ole Christian Lind, Hilde Kristin Skjerdal, Brit Salbu, Hilde Elise Heldal, Justin P Gwynn
In the present work, numerical models are used to study the fate of the (99)Tc discharges from Sellafield with a specific focus on the role of mesoscale eddy and tidal advection on the transport and dispersion of this radionuclide. Transport estimates are made with an ocean model that resolves a large part of the ocean mesoscale eddy field and also includes tides. Equivalent estimates are also computed with another model in which these processes are either absent or parametrized. Comparison with field observations shows that the coarse-resolution model can reproduce the general features of the observed time-space (99)Tc distribution if the diffusivity in its eddy parametrization scheme is suitably chosen...
June 20, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28645041/behavioral-and-neural-concordance-in-parent-child-dyadic-sleep-patterns
#3
Tae-Ho Lee, Michelle E Miernicki, Eva H Telzer
Sleep habits developed in adolescence shape long-term trajectories of psychological, educational, and physiological well-being. Adolescents' sleep behaviors are shaped by their parents' sleep at both the behavioral and biological levels. In the current study, we sought to examine how neural concordance in resting-state functional connectivity between parent-child dyads is associated with dyadic concordance in sleep duration and adolescents' sleep quality. To this end, we scanned both parents and their child (N=28 parent-child dyads; parent Mage=42...
June 15, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28644993/long-term-toxicity-of-surface-charged-polystyrene-nanoplastics-to-marine-planktonic-species-dunaliella-tertiolecta-and-artemia-franciscana
#4
E Bergami, S Pugnalini, M L Vannuccini, L Manfra, C Faleri, F Savorelli, K A Dawson, I Corsi
Plastic pollution has been globally recognized as a critical issue for marine ecosystems and nanoplastics constitute one of the last unexplored areas to understand the magnitude of this threat. However, current difficulties in sampling and identifying nano-sized debris make hard to assess their occurrence in marine environment. Polystyrene nanoparticles (PS NPs) are largely used as nanoplastics in ecotoxicological studies and although acute exposures have been already investigated, long-term toxicity on marine organisms is unknown...
June 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28644978/immune-activation-in-prolonged-cart-suppressed-hiv-patients-is-comparable-to-that-of-healthy-controls
#5
Lennert van den Dries, Mark A A Claassen, Zwier M A Groothuismink, Eric van Gorp, Andre Boonstra
Sustained immune activation during chronic HIV infection is considered to augment co-morbidity and mortality. Effective combination antiretroviral therapy (cART) has shown to dampen immune activation especially during the first year cART, but the effects of long-term cART in patients without major comorbidities remains under-investigated. We performed a comprehensive analysis including cellular, intracellular and plasma biomarkers to study the effect of cART on immune parameters in 5 groups of 10 HIV patients...
June 20, 2017: Virology
https://www.readbyqxmd.com/read/28644949/hematopoietic-cell-transplantation-for-acute-lymphoblastic-leukemia-in-adult-patients
#6
REVIEW
Riad El Fakih, Syed Ahmed, Feras Alfraih, Amr Hanbali
Acute lymphoblastic leukemia (ALL) consists of precursor B ALL or T ALL phenotypes. In the pediatric population, ALL patients enjoy an 80% long-term survival with the current pediatric chemotherapy protocols as compared with 50% long-term survival in the adult population. In adults, complete remission rates are similar to those of pediatric patients; however, long-term survival is much lower with the majority of deaths attributable to relapsed disease. Postremission consolidation strategies in adults include chemotherapy, autologous, or allogeneic transplant...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28644948/traumatic-buccal-fat-pad-herniation-in-young-children-a-systematic-review-and-case-report
#7
Seon-Yeong Kim, Angenine Alfafara, Jin-Woo Kim, Sun-Jong Kim
PURPOSE: Traumatic herniation of a buccal fat pad, predominantly seen in young children, is a rare condition. Because of its rarity and clinical features that resemble tumors, clinicians are faced with challenges at the initial diagnosis. This report describes a case of buccal fat pad herniation with excellent long-term prognosis after surgical relocation and conservative treatment and presents a systematic review of the literature on its management. MATERIALS AND METHODS: Through a PubMed search, 811 articles were initially identified...
May 30, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28644904/sustained-pasi-dlqi-and-eq-5d-response-of-biological-treatment-in-psoriasis-10-years-of-real-world-data-in-the-swedish-national-psoriasis-register
#8
F Hjalte, K Steen Carlsson, M Schmitt-Egenolf
BACKGROUND: Few studies have analysed the long-term effects of biological treatment in psoriasis. PsoReg, the Swedish national register for systemic psoriasis treatment, started in 2006 and includes now ten years of real-world data on effectiveness of biological treatment. OBJECTIVE: To analyse long-term real-world outcome data on biological-naïve patients with moderate to severe psoriasis after switching to biological treatment. METHODS: Observational study including biological-naïve patients with at least one registration of outcome before switching to biological treatment while included in PsoReg and at least one follow-up visit...
June 23, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28644892/r-modafinil-exerts-weak-effects-on-spatial-memory-acquisition-and-dentate-gyrus-synaptic-plasticity
#9
Bharanidharan Shanmugasundaram, Yogesh D Aher, Jana Aradska, Marija Ilic, Daniel Daba Feyissa, Predrag Kalaba, Nilima Y Aher, Vladimir Dragacevic, Babak Saber Marouf, Thierry Langer, Harald H Sitte, Harald Hoeger, Gert Lubec, Volker Korz
Modafinil is a wake promoting drug approved for clinical use and also has cognitive enhancing properties. Its enantiomer R-Modafinil (R-MO) is not well studied in regard to cognitive enhancing properties. Hence we studied its effect in a spatial memory paradigm and its possible effects on dentate gyrus long-term potentiation (DG-LTP). Clinically relevant doses of R-MO, vehicle dimethyl sulfoxide (DMSO) or saline were administered for three days during the hole-board test and in in vivo DG-LTP. Synaptic levels of dopamine receptors D1R, D2R, dopamine transporter (DAT), and its phosphorylated form (ph-DAT) in DG tissue 4 h after LTP induction were quantified by western blot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28644875/estimation-of-the-optimal-dosing-regimen-of-escitalopram-in-dogs-a-dose-occupancy-study-with-11c-dasb
#10
Olivia Taylor, Nick Van Laeken, Ingeborgh Polis, Robrecht Dockx, Lise Vlerick, Andre Dobbeleir, Ingeborg Goethals, Jimmy Saunders, Nele Sadones, Chris Baeken, Filip De Vos, Kathelijne Peremans
Although the favourable characteristics of escitalopram as being the most selective serotonin reuptake inhibitor and having an increased therapeutic efficacy via binding on an additional allosteric binding site of the serotonin transporter, its dosing regimen has not yet been optimized for its use in dogs. This study aimed to estimate the optimal dosing frequency and the required dose for achieving 80% occupancy of the serotonin transporters in the basal ganglia. The dosing frequency was investigated by determining the elimination half-life after a four day oral pre-treatment period with 0...
2017: PloS One
https://www.readbyqxmd.com/read/28644871/predicting-the-bounds-of-large-chaotic-systems-using-low-dimensional-manifolds
#11
Asger M Haugaard
Predicting extrema of chaotic systems in high-dimensional phase space remains a challenge. Methods, which give extrema that are valid in the long term, have thus far been restricted to models of only a few variables. Here, a method is presented which treats extrema of chaotic systems as belonging to discretised manifolds of low dimension (low-D) embedded in high-dimensional (high-D) phase space. As a central feature, the method exploits that strange attractor dimension is generally much smaller than parent system phase space dimension...
2017: PloS One
https://www.readbyqxmd.com/read/28644831/inflammatory-and-vascular-placental-lesions-are-associated-with-neonatal-amplitude-integrated-eeg-recording-in-early-premature-neonates
#12
Dorit Paz-Levy, Letizia Schreiber, Offer Erez, Sharon Goshen, Justin Richardson, VIadimir Drunov, Orna Staretz Chacham, Eilon Shany
INTRODUCTION: Placental histologic examination can assist in revealing the mechanism leading to preterm birth. Accumulating evidence suggests an association between intrauterine pathological processes, morbidity and mortality of premature infants, and their long term outcome. Neonatal brain activity is increasingly monitored in neonatal intensive care units by amplitude integrated EEG (aEEG) and indices of background activity and sleep cycling patterns were correlated with long term outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28644830/optimal-chemotactic-responses-in-stochastic-environments
#13
Martin Godány, Bhavin S Khatri, Richard A Goldstein
Although the "adaptive" strategy used by Escherichia coli has dominated our understanding of bacterial chemotaxis, the environmental conditions under which this strategy emerged is still poorly understood. In this work, we study the performance of various chemotactic strategies under a range of stochastic time- and space-varying attractant distributions in silico. We describe a novel "speculator" response in which the bacterium compare the current attractant concentration to the long-term average; if it is higher then they tumble persistently, while if it is lower than the average, bacteria swim away in search of more favorable conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28644822/the-effect-of-a-lay-led-group-based-self-management-program-for-patients-with-chronic-pain-a-randomized-controlled-trial-of-the-danish-version-of-the-chronic-pain-self-management-programme
#14
Mimi Mehlsen, Lea Hegaard, Eva Ørnbøl, Jens Søndergaard Jensen, Per Fink, Lisbeth Frostholm
The Stanford Chronic Pain Self-Management Programme (CPSMP) consists of six 2½-hour weekly workshops focusing on how to manage pain in daily life. The workshops are facilitated by two workshop leaders of whom at least one must suffer from a long-term pain condition. The program is highly structured and manualized. Only few controlled trials testing the effect of CPSMP exist.Enrolled in the study were 424 adults from 19 Danish municipalities, (72% women; age: 25-93 years) with pain of any etiology and great variation in pain history (0-50 yrs)...
June 22, 2017: Pain
https://www.readbyqxmd.com/read/28644795/a-novel-short-term-event-extraction-algorithm-for-biomedical-signals
#15
Sasan Yazdani, Sibylle Fallet, Jean-Marc Vesin
In this paper we propose a fast novel non-linear filtering method named Relative-Energy (Rel-En), for robust short-term event extraction from biomedical signals. We developed an algorithm that extracts short- and long-term energies in a signal and provides a coefficient vector with which the signal is multiplied, heightening events of interest. This algorithm is thoroughly assessed on benchmark datasets in three different biomedical applications namely, ECG QRS-complex detection, EEG K-complex detection, and imaging photoplethysmography (iPPG) peak detection...
June 21, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28644724/modeling-long-term-effects-attributed-to-nitrogen-dioxide-no2-and-sulfur-dioxide-so2-exposure-on-asthma-morbidity-in-a-nationwide-cohort-in-israel
#16
N Greenberg, R S Carel, E Derazne, A Tiktinsky, D Tzur, B A Portnov
Studies have provided extensive documentation that acutely elevated environmental exposures contribute to chronic health problems. However, only attention has been paid to the effects of modificate of exposure assessment methods in environmental health investigations, leading to uncertainty and gaps in our understanding of exposure- and dose-response relationships. The goal of the present study was to evaluate whether average or peak concentration exerts a greater influence on asthma outcome, and which of the exposure models may better explain various physiological responses generated by nitrogen dioxide (NO2) or sulfur dioxide (SO2) air pollutants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28644711/screening-for-squamous-cell-anal-cancer-in-hiv-positive-patients-a-five-year-experience
#17
Chiara Santorelli, Cosimo Alex Leo, Jonathan D Hodgkinson, Franco Baldelli, Francesco Cantarella, Emanuel Cavazzoni
AIM: Potential screening modalities for early diagnosis of squamous cell anal cancer (SCC) in HIV patients include digital anorectal examination (DARE), anal Papanicolaou testing (Pap test), human papilloma virus (HPV) co-testing, and high-resolution anoscopy. The aim of this study was to demonstrate the results of a five-year screening program for SCC in HIV patients. MATERIALS AND METHODS: We conducted a retrospective study on 204 HIV patients who underwent a screening program for SCC from October 2010 to January 2015...
June 23, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28644682/management-of-severe-bupropion-poisoning-with-intravenous-lipid-emulsion
#18
Neeraj Chhabra, Carol DesLauriers, Michael Wahl, Sean M Bryant
BACKGROUND: Bupropion toxicity is characterized by central nervous system and cardiovascular toxicity. Intravenous lipid emulsion (ILE) has been suggested as a treatment by some for the treatment of refractory bupropion toxicity. This recommendation is based largely on published case reports and cases presented at scientific meetings. The objective of this study is to characterize the outcomes of patients with suspected bupropion toxicity in which ILE was administered and the indications for its use...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28644569/gastrointestinal-stromal-tumors-of-the-esophagus-a-clinicopathologic-and-molecular-analysis-of-27-cases
#19
Guhyun Kang, Yuna Kang, Kyung-Hee Kim, Sang Yun Ha, Jung Yeon Kim, Young Mog Shim, Michael C Heinrich, Kyoung-Mee Kim, Christopher L Corless
AIMS: Gastrointestinal stromal tumors (GISTs) may arise anywhere in the gastrointestinal tract, but are rare in the esophagus. We describe the clinical, pathologic, and molecular characteristics of 27 primary esophageal GISTs, the largest series to date. METHODS AND RESULTS: DNA was extracted and exons 9, 11, 13 and 17 of KIT, exons 12, 14 and 18 of PDGFRA and exon 15 of BRAF were amplified and sequenced. Esophageal GISTs occurred in 14 men and 13 women between 22 and 80 years of age (mean, 56 years)...
June 23, 2017: Histopathology
https://www.readbyqxmd.com/read/28644565/long-term-risk-of-infection-in-patients-with-crohn-s-disease-on-anti-tnf-treatment-a-prospective-single-center-cohort-study-in-china
#20
Yue Li, Hui Jun Shu, Hong Lu, Hong Yang, Ji Li, Bei Tan, Jiaming Qian
BACKGROUND: Anti-TNF agents have demonstrated to greatly improve management strategies for inflammatory bowel disease (IBD). Clinical trials and registry studies in Western countries have shown that infections and malignancy are the most concerned complications of anti-TNF treatment. However, data derived from clinical practice in China are limited. The aim of this study is to explore the long-term infection risk of infliximab (IFX) in treating patients with Crohn's disease (CD) from a tertiary IBD center in China...
June 23, 2017: Journal of Digestive Diseases
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