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Lesley S de Souza, James C Godwin, Mark A Renshaw, Eric Larson
Environmental DNA (eDNA) holds great promise for conservation applications like the monitoring of invasive or imperiled species, yet this emerging technique requires ongoing testing in order to determine the contexts over which it is effective. For example, little research to date has evaluated how seasonality of organism behavior or activity may influence detection probability of eDNA. We applied eDNA to survey for two highly imperiled species endemic to the upper Black Warrior River basin in Alabama, US: the Black Warrior Waterdog (Necturus alabamensis) and the Flattened Musk Turtle (Sternotherus depressus)...
2016: PloS One
Feng Su, Pamela K Green, Kristin Berry, George N Ioannou
: Black race and Hispanic ethnicity were associated with lower rates of sustained virologic response (SVR) to interferon (IFN)-based treatments for chronic hepatitis C virus (HCV) infection whereas Asian race was associated with higher SVR rates compared to white patients. We aimed to describe the association between race/ethnicity and effectiveness of new direct-acting antiviral (DAA) regimens in the Veterans Affairs (VA) healthcare system nationally. We identified 21,095 HCV-infected patients (11,029 [52%] white, 6,171 [29%] black, 1,187 [6%] Hispanic, 348 [2%] Asian/Pacific Islander/American Indian/Alaska Native [Asian/PI/AI/AN] and 2,360 [11%] declined/missing race or ethnicity) who initiated antiviral treatment with regimens containing sofosbuvir (SOF), simeprevir + sofosbuvir (SMV+SOF), ledipasvir/sofosbuvir (LDV/SOF) or paritaprevir/ombitasvir/ritonavir/dasabuvir (PrOD), during the 18-month period from 01/01/2014 to 06/30/2015...
October 24, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Richard Baumgartner, William Cho, Alexandre Coimbra, Christopher Chen, Zaiqi Wang, Arie Struyk, Narayanaswamy Venketasubramanian, May Low, Cindy Gargano, Fuqiang Zhao, Donald Williams, Torsten Reese, Stephanie Seah, Dai Feng, Sonya Apreleva, Esben Petersen, Jeffrey L Evelhoch
PURPOSE: To present the testretest and contrast dose effect results of cerebral blood volume (CBV) functional MRI (fMRI) in healthy human volunteers using ferumoxytol (Feraheme), an ultrasmall-superparamagnetic iron oxide (USPIO) nanoparticle. MATERIALS AND METHODS: This was an open-label, two-period, fixed-sequence study in healthy young volunteers. In eight subjects, using a 3 Tesla field strength system, blood oxygen level dependent (BOLD) and CBV fMRI were acquired in response to a visual black-and-white checkboard stimulation paradigm using an escalating ferumoxytol dose design (250, 350, and 510 mg iron)...
October 24, 2016: Journal of Magnetic Resonance Imaging: JMRI
Liliya Harri
The process of making of flexographic printing plate by the digital method proceeds in the following stages: back exposure, laser irradiation, main exposure, washing, post exposure, and finishing of the photopolymer plate. Laser irradiation is one of the basic technological stages, in which a negative of the reproduced image is created on the black layer of photopolymer plate. The article presents the results of studies of the effect laser irradiation parameters on the quality of flexographic printing plate produced by digital method...
October 24, 2016: Microscopy Research and Technique
Cunlin Wang, Robert Kane, Mark Levenson, Jeffrey Kelman, Michael Wernecke, Joo-Yeon Lee, Steven Kozlowski, Carmen Dekmezian, Zhiwei Zhang, Aliza Thompson, Kimberly Smith, Yu-Te Wu, Yuqin Wei, Yoganand Chillarige, Qin Ryan, Chris Worrall, Thomas E MaCurdy, David J Graham
Importance: In 2011, the US Centers for Medicare & Medicaid Services (CMS) changed its reimbursement policy for hemodialysis to a bundled comprehensive payment system that included the cost of erythrocyte-stimulating agents (ESAs). Also in 2011, the US Food and Drug Administration revised the drug label for ESAs, recommending more conservative dosing in patients with chronic kidney disease. In response to concerns that these measures could have adverse effects on patient care and outcomes, the CMS and the FDA initiated a collaboration to assess the effect...
October 24, 2016: JAMA Internal Medicine
Famke Aeffner, Nathan T Martin, Mirza Peljto, Joshua C Black, Justin K Major, Maryam Jangani, Michael O Ports, Joseph S Krueger, G David Young
Tissue image analysis (tIA) is emerging as a powerful tool for quantifying biomarker expression and distribution in complex diseases and tissues. Pancreatic ductal adenocarcinoma (PDAC) develops in a highly complex and heterogeneous tissue environment and, generally, has a very poor prognosis. Early detection of PDAC is confounded by limited knowledge of the pre-neoplastic disease stages and limited methods to quantitatively assess disease heterogeneity. We sought to develop a tIA approach to assess the most common PDAC precursor lesions, pancreatic intraepithelial neoplasia (PanIN), in tissues from Kras(LSL-G12D/+); Trp53(LSL-R172H/+); Pdx-Cre (KPC) mice, a validated model of PDAC development...
October 24, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
Nuno Basílio, Sheiraz Al Bittar, Nathalie Mora, Olivier Dangles, Fernando Pina
3-Deoxyanthocyanidins and their O-β-d-glucosides are natural pigments abundant in black sorghum. O-glycosidation can perturb the acid-base properties of the chromophore and lower its electron density with a large impact on the distribution of colored and colorless forms in aqueous solution. In this work, the influence of O-glycosidation on color is systematically studied from a series of 3-deoxyanthocyanin analogs. The pH- and light-dependent reversible reactions of 7-β-d-glucopyranosyloxy-4'-hydroxyflavylium (P3) and 4'-β-d-glucopyranosyloxy-7-hydroxyflavylium (P5) were completely characterized in mildly acidic solution and compared with the parent aglycone 4',7-dihydroxyflavylium ion and the O-methylethers of P3 and P5...
October 20, 2016: International Journal of Molecular Sciences
Mohammad Z Hossain, Emily Shea, Mohsen Daneshtalab, John T Weber
Various species of berries have been reported to contain several polyphenolic compounds, such as anthocyanins and flavonols, which are known to possess high antioxidant activity and may be beneficial for human health. To our knowledge, a thorough chemical analysis of polyphenolics in species of these plants native to Newfoundland, Canada has not been conducted. The primary objective of this study was to determine the polyphenolic compounds present in commercial extracts from Newfoundland berries, which included blueberries (V...
October 19, 2016: Antioxidants (Basel, Switzerland)
S Des Roches, R Sollmann, K Calhoun, A Rothstein, E B Rosenblum
Measuring links among genotype, phenotype, and survival in the wild has long been a focus of studies of adaptation. We conducted a four-year capture-recapture study to measure survival by genotype and phenotype in the Southwestern Fence Lizard (Sceloporus cowlesi) at the White Sands ecotone (transition area between white sands and dark soil habitats). We report several unanticipated findings. First, in contrast with previous work showing that cryptic blanched colouration in S. cowlesi from the heart of the dunes is associated with mutations in the melanocortin-1 receptor gene (Mc1r), ecotonal S...
October 24, 2016: Molecular Ecology
M Li, F Liu, X B Zhang, J P Cheng
A variety of carbon materials varying from 0D to 2D, i.e. 0D nanoparticles, 1D carbon nanotubes (CNTs) and 2D reduced graphene oxide (rGO) are selected to in situ combine with Ni-Mn layered double hydroxide (LDH) to prepare electrode materials for supercapacitors. Through a simple solution method, hierarchical Ni-Mn LDH/carbon composites can be easily fabricated. A comparative study is carried out on the sandwich-like LDH/rGO, flower-like LDH/carbon black, turbostratic-structured LDH/CNTs and ternary LDH/CNTs/rGO for their structure, morphology, porous properties and electrochemical performances...
October 24, 2016: Physical Chemistry Chemical Physics: PCCP
Zsófia Bérces, Kinga Tóth, Gergely Márton, Ildikó Pál, Bálint Kováts-Megyesi, Zoltán Fekete, István Ulbert, Anita Pongrácz
Neural interface technologies including recording and stimulation electrodes are currently in the early phase of clinical trials aiming to help patients with spinal cord injuries, degenerative disorders, strokes interrupting descending motor pathways, or limb amputations. Their lifetime is of key importance; however, it is limited by the foreign body response of the tissue causing the loss of neurons and a reactive astrogliosis around the implant surface. Improving the biocompatibility of implant surfaces, especially promoting neuronal attachment and regeneration is therefore essential...
October 24, 2016: Scientific Reports
Zhigang Li, Chao Zu, Can Wang, Jianfeng Yang, Huan Yu, Huasong Wu
Soil microorganisms have important influences on plant growth and health. In this study, four black pepper fields consecutively monocultured for 12, 18, 28 and 38 years were selected for investigating the effect of planting age on rhizosphere and non-rhizosphere soil microbial communities and soil physicochemical properties. The results revealed that the relative abundance of the dominant bacterial phyla in rhizosphere soil increased considerably with long-term consecutive monoculture but decreased in non-rhizosphere soil with a significant decline in Firmicutes...
October 24, 2016: Scientific Reports
Kimberly Fryer, Sharon Keiser, Kenneth Trofatter, Kacey Y Eichelberger, Emily Heberlein
OBJECTIVE: To measure the impact of race/ethnicity on cerclage efficacy, as measured by the prevalence of spontaneous preterm birth (PTB), in a cohort of patients with history-indicated, ultrasound-indicated, and physical-exam indicated cerclages. METHODS: We conducted a retrospective cohort study of patients undergoing history-indicated, ultrasound-indicated, and physical-exam indicated cerclage placement from January 2003 to July 2013 at a tertiary care hospital...
October 23, 2016: Journal of Maternal-fetal & Neonatal Medicine
Andrés Palacio Chaverra
OBJECTIVE(S): Colombia has the third largest black population in the Americas after Brazil and the USA. In 2005 mortality rate under 5 in Colombia was 21.5 per 1000, with a reduction of 82% between 2005 and 1955. That rate is not in line with rates for Cuba (6.8), Chile (9.1) or Costa Rica (10.4). Here we aim to provide evidence that a further reduction of child mortality relates to the unspoken racial gap in a pioneering country in family planning and praised in the 2000 WHO report as having the world's fairest health care reform in terms of coverage and financial access...
October 24, 2016: Ethnicity & Health
Irena Stepanikova, Gabriela R Oates, Lori Brand Bateman
OBJECTIVE: This study investigates the associations of body mass index (BMI) and waist circumference (WC) with markers of systemic inflammation in midlife by race and gender. DESIGN: Data were obtained from the Survey of Midlife in the United States, a cross-sectional, observational study of Americans 35 years old or older (White men: N = 410; White women: N = 490; Black men: N = 58; Black women: N = 117). Inflammation was measured by concentrations of fibrinogen and C-reactive protein (CRP) in fasting plasma and concentrations of E-selectin and interleukin-6 (IL-6) in fasting serum...
October 24, 2016: Ethnicity & Health
Wei Xiong, Xiaoling Liu, Tie Wang, Yifan Zhang, Yanke Che, Jin-Cai Zhao
In this work, we report the development of one fluorescent carbazole-based oligomer 1-Zinc (II) coordination nanofiber which enabled the detection of five classes of explosives, i.e., nitroaromatics (dinitrotoluene, DNT and trinitrotoluene, TNT), aliphatic nitro-organics (2,3-dimethyl-2,3-dinitrobutane, DMNB), nitramines (cyclotrimethylenetrinitramine, RDX), nitro-esters (pentaerythritol tetranitrate, PETN), and black powder (sulfur). We demonstrate that the coordination of Zinc ion with a carbazole-based oligomer 1 allows the formation of the Lewis acid-base complex between explosives and the nanofiber that enhances the electron-accepting ability of the nitro-based explosives and the binding interactions between the sensing nanofibers and explosives...
October 24, 2016: Analytical Chemistry
Anna Laura Capriotti, Chiara Cavaliere, Patrizia Foglia, Giorgia La Barbera, Roberto Samperi, Salvatore Ventura, Aldo Laganà
Recently, magnetic solid-phase extraction has gained interest because it presents various operational advantages over classical solid-phase extraction. Furthermore, magnetic nanoparticles are easy to prepare, and various materials can be used in their synthesis. In the literature, there are only few studies on the determination of mycoestrogens in milk, although their carryover in milk has occurred. In this work, we wanted to develop the first (to the best of our knowledge) magnetic solid-phase extraction protocol for six mycoestrogens from milk, followed by liquid chromatography and tandem mass spectrometry analysis...
October 24, 2016: Journal of Separation Science
G J Johnson, R C Buckworth, H Lee, J A T Morgan, J R Ovenden, C R McMahon
Multivariate and machine-learning methods were used to develop field identification techniques for two species of cryptic blacktip shark. From 112 specimens, precaudal vertebrae (PCV) counts and molecular analysis identified 95 Australian blacktip sharks Carcharhinus tilstoni and 17 common blacktip sharks Carcharhinus limbatus. Molecular analysis also revealed 27 of the 112 were C. tilstoni × C. limbatus hybrids, of which 23 had C. tilstoni PCV counts and four had C. limbatus PCV counts. In the absence of further information about hybrid phenotypes, hybrids were assigned as either C...
October 24, 2016: Journal of Fish Biology
A Michalsen, O Eddin, A Salama
The objective of this study was to assess the effectiveness of a specific composition of a traditional herbal preparation (DurrDerma) in adult patients with moderate to severe skin psoriasis. The preparation is a newly developed topical combination containing plant-based extracts traditionally used in skin disease as black cumin, olive oil, tea tree oil, cocoa butter completed by vitamin A and vitamin B12. We documented the effectiveness of the preparation in a first case series. A total of 12 patients (8 males and 4 females, 21-86 y) with manifest and treatment-resistant psoriasis were included and treated for 12 weeks...
October 2016: Journal of Traditional and Complementary Medicine
Priya Muralidharan, Don Hayes, Stephen M Black, Heidi M Mansour
This systematic and comprehensive study reports for the first time on the successful rational design of advanced inhalable therapeutic dry powders containing dimethyl fumarate, a first-in-class Nrf2 activator drug to treat pulmonary inflammation, using particle engineering design technology for targeted delivery to the lungs as advanced spray dried (SD) one-component DPIs. In addition, two-component co-spray dried (co-SD) DMF:D-Man DPIs with high drug loading were successfully designed for targeted lung delivery as advanced DPIs using organic solution advanced spray drying in closed mode...
2016: Mol Syst Des Eng
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