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https://www.readbyqxmd.com/read/28343372/east-of-the-andes-the-genetic-profile-of-the-peruvian-amazon-populations
#1
T Di Corcia, C Sanchez Mellado, T J Davila Francia, G Ferri, S Sarno, D Luiselli, O Rickards
OBJECTIVES: Assuming that the differences between the Andes and the Amazon rainforest at environmental and historical levels have influenced the distribution patterns of genes, languages, and cultures, the maternal and paternal genetic reconstruction of the Peruvian Amazon populations was used to test the relationships within and between these two extreme environments. MATERIALS AND METHODS: We analyzed four Peruvian Amazon communities (Ashaninka, Huambisa, Cashibo, and Shipibo) for both Y chromosome (17 STRs and 8 SNPs) and mtDNA data (control region sequences, two diagnostic sites of the coding region, and one INDEL), and we studied their variability against the rest of South America...
March 25, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28343358/expression-of-the-cyanobacterial-enzyme-cyanase-increases-cyanate-metabolism-and-cyanate-tolerance-in-arabidopsis
#2
Rashad Kebeish, Omar Al-Zoubi
Cyanate and its derivatives are considered as environmental hazardous materials. Cyanate is released to the environment through many chemical industries and mining wastewater. Cyanase enzyme converts cyanate into CO2 and NH3 in a bicarbonate-dependent reaction. At low cyanate concentrations, the endogenous plant cyanases play a vital role in cyanate detoxification. However, such cyanate biodegradation system is probably insufficient due to the excess cyanate concentrations at contaminated sites. In this study, we have transferred the activity of the cyanobacterial cyanase into Arabidopsis thaliana plants in order to enhance plant resistance against cyanate toxicity...
March 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28343344/simultaneous-detection-of-chlorinated-polycyclic-aromatic-hydrocarbons-with-polycyclic-aromatic-hydrocarbons-by-gas-chromatography-mass-spectrometry
#3
Meng Qiao, Wei Cao, Bochuan Liu, Xu Zhao, Jiuhui Qu
Chlorinated polycyclic aromatic hydrocarbons (ClPAHs), including polychlorinated naphthalenes (PCNs), are hazardous and widespread in the environment, but studies of these substances in the wastewater environment are lacking. In this study, five typical PCNs and five typical ClPAHs (other than PCNs) were simultaneously detected along with their parent polycyclic aromatic hydrocarbons in wastewater samples. All these compounds could be analyzed by gas chromatography- electron ionization mass spectrometry in selected ion monitoring mode and separated on a DB-17ms column...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28343339/bound-pahs-in-sediment-and-related-environmental-significance
#4
Jian-Yang Guo, Jing-An Chen, Jing-Fu Wang, Feng-Chang Wu
Extractable polycyclic aromatic hydrocarbons (EPAHs) and bound PAHs (BPAHs) were measured in a sediment core using conventional Soxhlet extraction and a more astringent extraction method, with the objectives of determining the influence of BPAHs on the historical reconstruction of PAHs and exploring the formation of BPAHs and long-term behaviors of PAHs in sediment. The results indicated that the formation of BPAHs was clearly sediment-depth and molecular-size dependent. BPAHs represents an important portion of PAHs in sediment and cannot be extracted by conventional Soxhlet extraction...
March 25, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28343323/post-traumatic-sleep-wake-disorders
#5
REVIEW
Tatyana Mollayeva, Andrea D'Souza, Shirin Mollayeva, Angela Colantonio
All living organisms that face a traumatic life event are susceptible to sleep-wake disturbances. Stress, which can result in trauma, evokes a high level of physiological arousal associated with sympathetic nervous system activation, during both sleep and wakefulness. Heredity, sex hormones, early losses, developmental factors and intra- and interpersonal conflicts, contribute to the level of baseline physiological arousal, producing either subclinical, clinical or complex clinical traits, acutely and at any time after exposure to a traumatic event...
April 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28343286/a-mimic-of-sexually-motivated-homicide-insect-stings-and-heat-exhaustion-in-a-forest
#6
Nancy X Liu, Michael S Pollanen
We report the case a woman who was found dead in a forest. The body was nude and the position of the body suggested a sexually motivated homicide. We concluded that death was not related to homicide, but was related to the conjunction of environmental factors, including insect stings, and acute psychosis. A medicolegal death investigation with postmortem examination was undertaken to determine cause of death. At the scene, the body was supine with legs spread apart and the knees flexed, exposing the external genitalia...
March 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28343247/development-of-a-qtl-environment-based-predictive-model-for-node-addition-rate-in-common-bean
#7
Li Zhang, Salvador A Gezan, C Eduardo Vallejos, James W Jones, Kenneth J Boote, Jose A Clavijo-Michelangeli, Mehul Bhakta, Juan M Osorno, Idupulapati Rao, Stephen Beebe, Elvin Roman-Paoli, Abiezer Gonzalez, James Beaver, Jaumer Ricaurte, Raphael Colbert, Melanie J Correll
This work reports the effects of the genetic makeup, the environment and the genotype by environment interactions for node addition rate in an RIL population of common bean. This information was used to build a predictive model for node addition rate. To select a plant genotype that will thrive in targeted environments it is critical to understand the genotype by environment interaction (GEI). In this study, multi-environment QTL analysis was used to characterize node addition rate (NAR, node day(- 1)) on the main stem of the common bean (Phaseolus vulgaris L)...
March 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28343204/-risk-management-of-hospital-infections-as-a-supporting-tool-for-the-improvement-of-hospital-quality-some-european-examples
#8
Mateusz Sitek, Izabela Witczak, Dorota Kiedik
Prevention and control of nosocomial infections is one of the main pillars of security in each medical facility. This affects the quality of services and helps to minimize the economic losses incurred as a result of such infections. (Prolonged hospitalization, expensive antibiotic therapies, court costs of damages). Nosocomial infections occur in every medical facility in the hospitals in terms of risk of infection compared to other medicinal entities are at greater risk of environmental (number of hospitalizations for one bed, the amount of disinfectants, etc...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343146/antimicrobial-effect-of-the-biotronic%C3%A2-top3-supplement-and-efficacy-in-protecting-rainbow-trout-oncorhynchus-mykiss-from-infection-by-aeromonas-salmonicida-subsp-salmonicida
#9
Simon Menanteau-Ledouble, Ines Krauss, Rui Alexandre Goncalves, Barbara Weber, Gonçalo Abreu Santos, Mansour El-Matbouli
Demand for more environmentally friendly practices have led to the adoption of several feed supplements by the fish farming industry. In the present study, we investigated a commercially available formula that includes a mixture of three compounds: organic acids, a phytochemical and Biomin® Permeabilizing Complex. This mixture demonstrated antimicrobial properties in vitro and was able to inhibit growth of multiple species of aquatic bacterial pathogens, including Aeromonas salmonicida. Bacterial challenge was performed using A...
March 18, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28343111/the-intimate-relationship-as-a-site-of-social-protection-partnerships-between-people-who-inject-drugs
#10
Tim Rhodes, Jake Rance, Suzanne Fraser, Carla Treloar
Public health research treats intimate partnerships as sites of risk management, including in the management of HIV and hepatitis C transmission. This risk-infused biomedical approach tends to undermine appreciation of the emotional and socially situated meanings of care in intimate partnerships. In this article we explore qualitative interview accounts of the care enacted in partnerships between people who inject drugs, drawing on a 2014 study of 34 couples and 12 individuals living in two locations of Australia...
March 10, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28343090/developmental-systems-of-plasticity-and-trans-generational-epigenetic-inheritance-in-nematodes
#11
REVIEW
Vahan Serobyan, Ralf J Sommer
Several decades of research provided detailed insight into how genes control development and evolution, whereas recent studies have expanded this purely genetic perspective by presenting strong evidence for environmental and epigenetic influences. We summarize examples of phenotypic plasticity and trans-generational epigenetic inheritance in the nematode model organisms Pristionchus pacificus and Caenorhabditis elegans, which indicate that the response of developmental systems to environmental influences is hardwired into the organismś genome...
March 23, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28343049/stabilisation-of-spent-mushroom-substrate-for-application-as-a-plant-growth-promoting-organic-amendment
#12
Fabiana S Paula, Enrico Tatti, Florence Abram, Jude Wilson, Vincent O'Flaherty
Over three million tonnes of spent mushroom substrate (SMS) are produced in Europe every year as a by-product of the cultivation of Agaricus bisporus. The management of SMS has become an increasing challenge for the mushroom production industry, and finding environmentally and economically sustainable solutions for this organic residue is, therefore, highly desirable. Due to its physical properties and nutrient content, SMS has great potential to be employed in agricultural and horticultural sectors, and further contribute to reduce the use of non-renewable resources, such as peat...
March 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28343044/a-system-of-containment-to-prevent-oil-spills-from-sunken-tankers
#13
Antonio García-Olivares, Almudena Agüero, Bernd J Haupt, María J Marcos, María V Villar, José L de Pablos
Worldwide tank spills represent 10% of the average annual input of oil in the sea. When such spills arise from wrecks at depth, neutralisation of environmental impacts is difficult to achieve. Extracting oil from sunken tankers is expensive, and, unfortunately, all of the oil cannot be extracted, as the Prestige case demonstrates. We propose an environmentally appropriate, cost-effective and proactive method to stop the long-term problem of leaks from sunken tankers similar to the Prestige. This method confines the wreck with a "sediment" capping of sepiolite mineral that emulates a natural sediment...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343042/in-situ-determination-of-trace-elements-in-fucus-spp-by-field-portable-xrf
#14
Andrew Turner, Hiu Poon, Alex Taylor, Murray T Brown
Fresh and freeze-dried sample sections of the coastal macroalgae, Fucus serratus and F. vesiculosus, and the brackish water macroalga, F. ceranoides, have been analysed for trace elements by field-portable-X-ray fluorescence (FP-XRF) spectrometry using a Niton XL3t in a low density mode with thickness correction. When analysed fresh in a laboratory accessory stand for a period of 200 seconds, As, Br, Fe and Zn were registered in the apex, mid-frond and lower stipe of all species, with detection limits of a few μg g(-1) (As) or a few tens of μg g(-1) (Br, Fe, Zn); when analysed dry under the same conditions, concentrations returned were systematically higher and Cu and Pb were detected in a number of F...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343040/the-influence-of-lead-content-in-drinking-water-household-dust-soil-and-paint-on-blood-lead-levels-of-children-in-flin-flon-manitoba-and-creighton-saskatchewan
#15
Adam M Safruk, Erin McGregor, Melissa L Whitfield Aslund, Paul H Cheung, Celine Pinsent, Blair J Jackson, Alan T Hair, Murray Lee, Elliot A Sigal
Lead exposure continues to be an important health issue despite the general removal of lead sources in commercial and industrial applications. Low levels of lead exposure have been found to produce adverse neurodevelopmental effects in children with no evidence that a threshold exists for this critical endpoint. Blood lead levels (BLLs) were measured in children (n=118) under the age of 7years in the northern Canadian smelter community of Flin Flon, Manitoba and Creighton, Saskatchewan. An environmental sampling component was included to examine the relationship between lead content in outdoor soil, household dust, tap water, and paint within a given household and the corresponding BLLs in participating children...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343036/behaviour-of-137-cs-in-forest-humus-detected-across-the-territory-of-the-czech-republic
#16
Jan Škrkal, Helena Pilátová, Petr Rulík, Ivan Suchara, Julie Sucharová, Marie Holá
The activity concentration of (137)Cs in samples of coniferous forest humus collected across the territory of the Czech Republic in 1995 and 2005 was analysed, and it was found significantly correlated with the surface deposition caused by the Chernobyl accident. The effective (12.8 y) and environmental (22.3 y) half-lives of radiocaesium in humus were calculated and compared with those in spruce bark. The impact of important forest stand factors, that is, precipitation, content of organic matter, age of trees and pH, on the behaviour of (137)Cs in humus was studied...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343020/selenium-speciation-influences-bioaccumulation-in-limnodynastes-peronii-tadpoles
#17
C M Lanctôt, S D Melvin, T Cresswell
Despite being essential for animal health and fitness, Se has a relatively narrow range between deficiency and toxicity, and excess Se can cause a variety of adverse effects in aquatic organisms. Amphibians are particularly vulnerable to contaminants during larval aquatic life stage, because they can accumulate toxic ions through various routes including skin, gills, lungs and digestive tract. Few attempts have been made to understand the tissue-specific accumulation of trace elements, including the impacts of chemical speciation in developing amphibian larvae...
March 12, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28343013/inflammatory-muscle-disease-a-new-landscape
#18
Alain Meyer, Béatrice Lannes, Joëlle Goetz, Andoni Echaniz-Laguna, Dan Lipsker, Laurent Arnaud, Thierry Martin, Jacques Eric Gottenberg, Bernard Geny, Jean Sibilia
Greater accuracy in clinical descriptions combined with advances in muscle histology and immunology have established that inflammatory muscle diseases (IMDs) resemble inflammatory joint diseases in that they constitute a highly heterogeneous group of conditions. The topographic distribution, severity, and tempo of onset vary widely, and the histological findings distinguish at least five different profiles, which may reflect different pathophysiological processes. Most IMDs are connective tissue diseases that can affect multiple organs, among which the most common targets are the skin, joints, and lungs...
March 22, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28342997/the-author-s-reply-to-n-r-haddaway
#19
M Cristina Mangano, G Sarà
In this reply we respond to the commentary of Dr. Haddaway addressed in searching for pitfalls in our systematic mapping exercise "Collating science-based evidence to inform public opinion on the environmental effects of marine drilling platforms in the Mediterranean Sea" recently published in Journal of Environmental Management (Mangano, M.C. and Sarà, G. 2017. Journal of Environmental Management 188: 195-202). We discussed each so called "pitfalls" and, in our opinion, the main cornerstones of systematic map - SM (repeatability, comprehensiveness, transparency, traceability, quality, generalizability) are safe guaranteeing the "gold standard" required by this technique...
March 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28342886/using-genetic-data-to-improve-species-distribution-models
#20
Jérémy Bouyer, Renaud Lancelota
Tsetse flies (Diptera, Glossinidae) transmit human and animal trypanosomoses in Africa, respectively a neglected human disease (sleeping sickness) and the most important constraint to cattle production in infested countries (nagana). We recently developed a methodology to map landscape friction (i.e. resistance to movement) for tsetse in West Africa. The goal was to identify natural barriers to tsetse dispersal, and potentially isolated tsetse populations for targeting elimination programmes. Most species distribution models neglect landscape functional connectivity whereas environmental factors affecting suitability or abundance are not necessarily the same as those influencing gene flows...
March 22, 2017: Infection, Genetics and Evolution
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