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Varsha B Gujar, Divya Ottoor
Behavior of Amiloride (AMI) as a metal ion sensor in anionic surfactant assemblies of varying concentrations at different pH is depicted in this work. From a non-sensor fluorophore, AMI has been transformed in to a tunable fluorosensor for Cu(2+) ions in various SDS concentrations. At premicellar concentration of SDS, ion-pair complex is expected to be formed between AMI and SDS due to electrostatic interactions between them. However at CMC concentrations of SDS, fluorescence intensity of AMI is greatly enhanced with red shift in emission, due to the incorporation of AMI molecule in the hydrophobic micellar interface...
October 18, 2016: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Tong Zhou, Zhu Li, Fan Zhang, Xiaosan Jiang, Weiming Shi, Longhua Wu, Peter Christie
Concentrations of arsenic (As), cadmium (Cd) and lead (Pb) were determined in 384 human hair samples and 445 purchased food samples from 11 cities in China. The mean concentrations of hair As, Cd and Pb were 0.23, 0.062 and 2.45mgkg(-1), respectively. The As, Cd and Pb concentrations in different foods were lower than the national maximum allowable contaminant levels. By comparison, males had higher hair As concentrations but lower Cd concentrations than females. When the interaction effects of gender and age were considered, males had the higher hair As, Cd and Pb concentrations in the 51-65 year-old age group...
October 19, 2016: Environmental Toxicology and Pharmacology
Mohammadhossein Hajiebrahimi, Scott Montgomery, Sarah Burkill, Shahram Bahmanyar
OBJECTIVE: To investigate risk of premenopausal and postmenopausal breast cancer among Multiple Sclerosis (MS) patients, considering tumor stage. METHODS: The Swedish Patient Register identified 19,330 women with MS between 1968 and 2012, matched individually with a cohort of 193,458 without MS. Matching variables were year of birth, sex, region of residence and vital status at the time of diagnosis. The cancer register identified 471 and 5,753 breast cancer cases among the MS and non-MS cohorts, respectively...
2016: PloS One
Thanh Tam Tran, Joel Adams-Bedford, Vasoontara Yiengprugsawan, Sam-Ang Seubsman, Adrian Sleigh
INTRODUCTION: Injury and psychological distress are public health priorities because of their high occurrence in the population. This study examines the longitudinal effects of injury characteristics on psychological distress. METHODS: Study participants were enrolled distance learning Thai adults (N = 42,785 at 2013 follow-up) residing nationwide. We analysed 2009 and 2013 data. Injury questions included injury prevalence, causes and levels of severity. Distress was measured using the standard Kessler-6...
2016: PloS One
Anne Buttgereit, Iva Lelios, Xueyang Yu, Melissa Vrohlings, Natalie R Krakoski, Emmanuel L Gautier, Ryuichi Nishinakamura, Burkhard Becher, Melanie Greter
Microglia are the resident macrophages of the central nervous system (CNS). Gene expression profiling has identified Sall1, which encodes a transcriptional regulator, as a microglial signature gene. We found that Sall1 was expressed by microglia but not by other members of the mononuclear phagocyte system or by other CNS-resident cells. Using Sall1 for microglia-specific gene targeting, we found that the cytokine receptor CSF1R was involved in the maintenance of adult microglia and that the receptor for the cytokine TGF-β suppressed activation of microglia...
October 24, 2016: Nature Immunology
Pleun Hombrink, Christina Helbig, Ronald A Backer, Berber Piet, Anna E Oja, Regina Stark, Giso Brasser, Aldo Jongejan, René E Jonkers, Benjamin Nota, Onur Basak, Hans C Clevers, Perry D Moerland, Derk Amsen, René A W van Lier
Tissue-resident memory T cells (TRM cells) in the airways mediate protection against respiratory infection. We characterized TRM cells expressing integrin αE (CD103) that reside within the epithelial barrier of human lungs. These cells had specialized profiles of chemokine receptors and adhesion molecules, consistent with their unique localization. Lung TRM cells were poised for rapid responsiveness by constitutive expression of deployment-ready mRNA encoding effector molecules, but they also expressed many inhibitory regulators, suggestive of programmed restraint...
October 24, 2016: Nature Immunology
Hyemin Kim, Won Ho Kong, Keum-Yong Seong, Dong Kyung Sung, Hyeonseon Jeong, Jin Kon Kim, Seung Yun Yang, Sei Kwang Hahn
Epidermal growth factor (EGF) has been recognized as an excellent wound healing agent due to its therapeutic function stimulating skin cell growth, proliferation and differentiation. However, the transdermal delivery of EGF poses a significant challenge due to its short half-life and lack of efficient formulation. Here, to improve the transdermal delivery efficiency, EGF was conjugated to hyaluronate (HA), which was formulated into a patch-type film for skin wound healing. HA-EGF conjugate was synthesized by coupling reaction between aldehyde-modified HA and N-terminal amine group of EGF to minimize the loss of biological activities...
October 24, 2016: Biomacromolecules
Julia L Monteiro, Paula F Carneiro, Petteri Elsner, Dominique Roberge, Peter G M Wuts, Kathrin Kurjan, Bernhard Gutmann, C Oliver Kappe
Herein, we report an operationally simple and rapid continuous flow radical C─C bond formation under Minisci-type reaction conditions. The transformations are performed at or below room temperature employing hydrogen peroxide (H2O2) and dimethylsulfoxide (DMSO) as reagents in the presence of an Fe(II) catalyst. For electron rich aromatic and heteroaromatic substrates C─C bond formation proceeds satisfactorily with electrophilic radicals including ∙CF3, ∙C4F9, ∙CH2CN and ∙CH2CO2Et. In contrast, electron poor substrates exhibit minimal reactivity...
October 24, 2016: Chemistry: a European Journal
Jennie Johnstone, Robin Parsons, Fernando Botelho, Jamie Millar, Shelly McNeil, Tamas Fulop, Janet E McElhaney, Melissa K Andrew, Stephen D Walter, P J Devereaux, Mehrnoush Malek, Ryan R Brinkman, Jonathan Bramson, Mark Loeb
OBJECTIVES: To determine whether immune phenotypes associated with immunosenescence are predictive of frailty and mortality within 1-year in elderly nursing home residents. DESIGN: Cross sectional study of frailty; prospective cohort study of mortality. SETTING: Thirty-two nursing homes in four Canadian cities between September 2009 and October 2011. PARTICIPANTS: Nursing home residents aged 65 and older (N = 1,072, median age 86, 72% female)...
October 24, 2016: Journal of the American Geriatrics Society
Gordon Gong, Cassandra C Huey, Coleman Johnson, Debra Curti, Billy U Philips
One of the goals of the Affordable Care Act aims to provide affordable health insurance through the health insurance exchange marketplace (the Marketplace). This study explores enrollments in the Marketplace in Texas and in rural vs urban areas in the East, South, and West regions of the state. Data are derived from the US Census Bureau and the Department of Health and Human Services. A total of 92.7% of eligible non-elderly adult Texans (NEATs) had enrolled in Marketplace insurance as of February 2015. Rural residents were less likely than urban residents to use the Marketplace...
October 1, 2016: Texas Medicine
Zhenjie Wang, Gong Chen, Chao Guo, Lihua Pang, Xiaoying Zheng
Socioeconomic inequalities associated with multiple disabilities have not been explored in China. This is the first study to explore changes in multiple disabilities among persons aged 15-64 years in China. Data were derived from the 1987 and 2006 China National Sample Surveys on Disability, which are nationally representative population-based surveys. Both surveys used multistage, stratified, cluster random sampling with probability proportional to size to derive nationally representative samples. We used standard weighting procedures to construct sample weights considering the multistage stratified cluster sampling survey scheme...
October 21, 2016: International Journal of Environmental Research and Public Health
Joanna Kostka, Tomasz Kostka, Ewa Borowiak
BACKGROUND: The goal of this study was to assess the physical activity (PA) and its determinants of older people living in the three different environments. METHODS: Three equal (n=693 each) groups of individuals aged ≥65 years living in urban, rural and institutional environments took part in this study. PA was measured by the Seven-Day Recall PA Questionnaire (energy expenditure - PA-EE) and the Stanford Usual Activity Questionnaire (health-related behaviors - PA-HRB)...
October 24, 2016: Journal of Physical Activity & Health
Darla E Kendzor, Marlyn Allicock, Michael S Businelle, Lona F Sandon, Kelley Pettee Gabriel, Summer G Frank
BACKGROUND: The current study evaluated the feasibility and effectiveness of a diet and physical activity intervention for homeless adults. METHODS: Shelter residents (N = 32) were randomly assigned to a 4-week diet and physical activity intervention (n = 17) or an assessment-only control group (n = 15). Intervention participants received tailored educational newsletters, pedometers with step goals, and twice daily fruit/vegetable snacks. Key measures included 24-hour dietary recall interviews and accelerometer-measured moderate to vigorous intensity physical activity (MVPA)...
October 24, 2016: Journal of Physical Activity & Health
Alexandre Pedro Tavares da Fonseca Magalhães, Elisabete da Conceição Pereira Ramos, Maria de Fátima Rodrigues Pereira de Pina
BACKGROUND: Proximity to urban green spaces (UGS) and open sports spaces (OSS) benefits health, promotes physical activity (PA) and sports practice (SP). OBJECTIVE: Analyse the association between PA or SP according to distances between UGS or OSS and teenagers' residences or schools. METHODS: We evaluated 1333 (53.9% girls) teenagers (13year-old) living and studying in Porto, Portugal (EPITeen cohort). PA was classified as light or moderate/vigorous...
October 24, 2016: Journal of Physical Activity & Health
Caleb Mpyet, Nasiru Muhammad, Mohammed Dantani Adamu, Habila Muazu, Murtala Mohammad Umar, Musa Goyol, Uwazoeke Onyebuchi, Ima Chima, Haliru Idris, Adamani William, Sunday Isiyaku, Benjamin Nwobi, Rebecca Mann Flueckiger, Rebecca Willis, Alexandre Pavluck, Brian K Chu, Nicholas Olobio, Anthony W Solomon
PURPOSE: To determine the local government area (LGA)-level prevalence of trachoma in all 34 LGAs of Katsina State. METHODS: A population-based prevalence survey was conducted in each LGA of Katsina State, using the Global Trachoma Mapping Project methodology. We used a 3-stage cluster random sampling strategy to select 25 households from each of 25 clusters. We examined all residents of selected households aged 1 year and older for the clinical signs of trachomatous inflammation-follicular (TF), trachomatous inflammation-intense and trichiasis, using the World Health Organization (WHO) simplified grading scheme...
October 24, 2016: Ophthalmic Epidemiology
Shuo Kang, Ab F Nieuwenhuis, Klaus Mathwig, Dileep Mampallil, Zinaida A Kostiuchenko, Serge G Lemay
The diffusive mass transport of individual redox molecules was probed experimentally in microfabricated nanogap electrodes. The residence times for molecules inside a well-defined detection volume were extracted and the resulting distribution was compared with quantitative analytical predictions from random-walk theory for the time of first passage. The results suggest that a small number of strongly adsorbing sites strongly influence mass transport at trace analyte levels.
October 24, 2016: Faraday Discussions
Marie E Jetté, Kimberly A Dill-McFarland, Alissa S Hanshew, Garret Suen, Susan L Thibeault
Prolonged diffuse laryngeal inflammation from smoking and/or reflux is commonly diagnosed as chronic laryngitis and treated empirically with expensive drugs that have not proven effective. Shifts in microbiota have been associated with many inflammatory diseases, though little is known about how resident microbes may contribute to chronic laryngitis. We sought to characterize the core microbiota of disease-free human laryngeal tissue and to investigate shifts in microbial community membership associated with exposure to cigarette smoke and reflux...
October 24, 2016: Scientific Reports
Ana F Teixeira, Sónia F Dias
OBJECTIVES: This study aims at examining how factors relating to immigrants' experience in the host country affect psychological distress (PD). Specifically, we analyzed the association among socio-economic status (SES), integration in the labor market, specific immigration experience characteristics, and PD in a multi-ethnic sample of immigrant individuals residing in Lisbon, Portugal. DESIGN: Using a sample (n = 1375) consisting of all main immigrant groups residing in Portugal's metropolitan area of Lisbon, we estimated multivariable linear regression models of PD regressed on selected sets of socio-economic independent variables...
October 24, 2016: Ethnicity & Health
Amy E Felumlee, Angela J Marolf, Elissa K Randall, Annette M Bachand, Jessica M Quimby
Measurement of glomerular filtration rate (GFR) via gamma camera uptake of 99mTc-diethylenetriaminepentaacetic acid is a standard method for quantifying renal function. Aims of this retrospective, observer agreement study were to determine intra- and interobserver variation in GFR values for cats with chronic kidney disease and to determine whether renal insufficiency classification changed between observers. Guideline cut-points were established for the difference in repeated GFRs to differentiate changes caused by therapeutic effect vs...
October 23, 2016: Veterinary Radiology & Ultrasound
Jeffrey L Crabtree, David Ohm, Jarrod M Wall, Joseph Ray
This pilot study explored the strengths and weaknesses of an informal education program and identified elements of the program valued by participants. Participants were men living in a minimum security prison who had been incarcerated for ten or more years. The outside researcher was joined by three former program participants as co-researchers. Together, they interviewed 27 residents who completed the informal education program. Interviews were transcribed and de-identified. Researchers used the summative content analysis approach to analyze the data...
October 24, 2016: Occupational Therapy International
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