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https://www.readbyqxmd.com/read/29029003/rearing-xyleborus-volvulus-coleoptera-curculionidae-on-media-containing-sawdust-from-avocado-or-silkbay-with-or-without-raffaelea-lauricola-ophiostomatales-ophiostomataceae
#1
Octavio Menocal, Luisa F Cruz, Paul E Kendra, Jonathan H Crane, Randy C Ploetz, Daniel Carrillo
Like other ambrosia beetles, Xyleborus volvulus Fabricius (Coleoptera: Curculionidae) lives in a mutualistic symbiotic relationship with fungi that serve as food source. Until recently, X. volvulus was not considered a pest, and none of its symbionts were considered plant pathogens. However, recent reports of an association between X. volvulus and Raffaelea lauricola T.C. Harr., Fraedrich & Aghayeva (Ophiostomatales: Ophiostomataceae), the cause of the laurel wilt disease of avocado (Persea americana Mill. [Laurales: Lauraceae]), and its potential role as vector of the pathogen merit further investigation...
October 9, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29028616/simultaneous-determination-of-a-novel-c-met-axl-dual-target-small-molecule-inhibitor-bpi-9016m-and-its-metabolites-in-human-plasma-by-liquid-chromatography-tandem-mass-spectrometry-application-in-a-pharmacokinetic-study-in-chinese-advanced-solid-tumor-patients
#2
Xinge Cui, Xin Zheng, Ji Jiang, Fenlai Tan, Lieming Ding, Pei Hu
BPI-9016M is a novel dual-target small-molecule inhibitor targeting c-Met and AXL, which was developed by Betta Pharmaceuticals Co., Ltd (Hangzhou, China). It has great potential in the treatment of advanced cancer. A high throughput quantitation method, based on liquid chromatography-tandem mass spectrometry, was developed and validated for the simultaneous determination of BPI-9016M and its main metabolite, M1 and M2-2, in human plasma with a sample preparation method of precipitation of protein. Liquid chromatographic separation was performed with a gradient elution of formic acid-10mM ammonium acetate aqueous solution (1:1000, v/v) and acetonitrile at a flow rate of 0...
October 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29028568/virulence-genotypes-and-antimicrobial-susceptibility-patterns-of-arcobacter-butzleri-isolated-from-seafood-and-its-environment
#3
Srinu Rathlavath, Vandita Kohli, Asem Sanjit Singh, Manjusha Lekshmi, Gayatri Tripathi, Sanath Kumar, Binaya Bhusan Nayak
Arcobacter butzleri is an emerging pathogen isolated from animals, food and the environment. In this study, 147 A. butzleri isolated from seafood and the coastal environment were tested for the presence of ten putative virulence genes (cadF, cj1349, ciaB, mviN, pldA, tlyA, hecA, hecB, irgA, iroE) and antimicrobial susceptibilities. Majority of the isolates harbored mviN (100%), cj1349 (97.2%), ciaB (95.9%), tlyA (91.8%), pldA (91.1%) and cadF (89.7%). Lower detection rates were observed for hecA (10.8%), hecB (19%), iroE (12...
October 3, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29028464/should-physicians-consider-the-environmental-effects-of-prescribing-antibiotics
#4
Jeremy Balch, Julia H Schoen, Payal K Patel
Pharmaceuticals are beginning to receive attention as a source of pollution in aquatic environments. Yet the impact of physician prescription patterns on water resources is not often discussed in clinical decision making. Here, we comment on a case in which empiric antibiotic treatment might benefit a patient while simultaneously being detrimental to the aquatic environment. We first highlight the potential harm caused by this prescription from its production to its disposal. We then suggest that Van Rensselaer Potter's original conceptualization of bioethics can be used to balance clinicians' obligations to protect individual, public, and environmental health...
October 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/29028292/dynamics-of-soil-biogeochemical-gas-emissions-shaped-by-remolded-aggregate-sizes-and-carbon-configurations-under-hydration-cycles
#5
Ali Ebrahimi, Dani Or
Changes in soil hydration status affect microbial community dynamics and shape key biogeochemical processes. Evidence suggests that local anoxic conditions may persist and support anaerobic microbial activity in soil aggregates (or in similar hot spots) long after the bulk soil becomes aerated. To facilitate systematic studies of interactions among environmental factors with biogeochemical emissions of CO2 , N2 O and CH4 from soil aggregates, we remolded silt soil aggregates to different sizes and incorporated carbon at different configurations (core, mixed, no addition)...
October 13, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29027996/aquatic-urban-ecology-at-the-scale-of-a-capital-community-structure-and-interactions-in-street-gutters
#6
Vincent Hervé, Boris Leroy, Albert Da Silva Pires, Pascal Jean Lopez
In most cities, streets are designed for collecting and transporting dirt, litter, debris, storm water and other wastes as a municipal sanitation system. Microbial mats can develop on street surfaces and form microbial communities that have never been described. Here, we performed the first molecular inventory of the street gutter-associated eukaryotes across the entire French capital of Paris and the non-potable waters sources. We found that the 5782 OTUs (operational taxonomic units) present in the street gutters which are dominated by diatoms (photoautotrophs), fungi (heterotrophs), Alveolata and Rhizaria, includes parasites, consumers of phototrophs and epibionts that may regulate the dynamics of gutter mat microbial communities...
October 13, 2017: ISME Journal
https://www.readbyqxmd.com/read/29027593/detecting-the-effects-of-coal-mining-acid-rain-and-natural-gas-extraction-in-appalachian-basin-streams-in-pennsylvania-usa-through-analysis-of-barium-and-sulfate-concentrations
#7
Xianzeng Niu, Anna Wendt, Zhenhui Li, Amal Agarwal, Lingzhou Xue, Matthew Gonzales, Susan L Brantley
To understand how extraction of different energy sources impacts water resources requires assessment of how water chemistry has changed in comparison with the background values of pristine streams. With such understanding, we can develop better water quality standards and ecological interpretations. However, determination of pristine background chemistry is difficult in areas with heavy human impact. To learn to do this, we compiled a master dataset of sulfate and barium concentrations ([SO4], [Ba]) in Pennsylvania (PA, USA) streams from publically available sources...
October 13, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/29027560/recovered-spinel-mnco2o4-from-spent-lithium-ion-batteries-for-enhanced-electrocatalytic-oxygen-evolution-in-alkaline-medium
#8
Subramanian Natarajan, S Anantharaj, Rajesh J Tayade, Hari C Bajaj, Subrata Kundu
A facile way of recovering 3d transition metals of industrial importance from spent lithium-ion batteries (LIBs) without using any surfactants has been developed. Mn- and Co-rich spent LIBs were chosen as sustainable sources for recovering the oxides of the respective elements. The physical dismantling of Li-ion batteries, chemical leaching with 2 M acetic acid, precipitation with ammonium carbonate, hydrothermal conditioning and calcination at 650 °C led to the facile formation of spherical spinel MnCo2O4 with very high morphological selectivity...
October 13, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29027255/tracking-capybara-hydrochoerus-hydrochaeris-feces-contribution-method-in-aquatic-environments-using-sterols
#9
Karina Scurupa Machado, Sandro Froehner, Zhihua Han, Juliane Rizzi, Mayara Torres
The monitoring of fecal contamination (human and animal) is an incessant challenge. In this approach, microbiology methods play an important role, however with substantial limitations. Organic compounds, such as sterols, are often used to trace this type of fecal contamination. Although the fecal sterols profile from some animals are already known, Capybara, a typical mammal from South America is a significant contributor to aquatic fecal contamination due to their water dependence, and still there is no one way, scientifically addressed, to trace their fecal contribution...
October 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29026764/a-case-control-study-on-environmental-and-biological-risk-factors-for-renal-calculi-persisting-in-a-coastal-union-territory-india
#10
Prakash Mathiyalagen, Anand Neelakantan, Karthik Balusamy, Kavita Vasudevan, Johnson Cherian, Bhuvaneswary Sunderamurthy
BACKGROUND AND OBJECTIVES: Renal stone disease is a common disorder of the urinary tract and also a significant problem because of incidence, recurrence, and severe consequences. The complex pathogenetic mechanisms of renal stone formation involve both biologic and environmental risk factors. The present study was performed to identify the role of these parameters among renal stone patients and normal individuals from a coastal union territory region in South India. METHODS: The authors conducted a case-control study of renal stone disease among outpatient department patients more than 30 years of age using systematic random sampling procedure with 100 study participants (50 subjects for each group)...
January 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29026657/whole-genome-sequencing-to-investigate-a-non-clonal-melioidosis-cluster-on-a-remote-australian-island
#11
Derek S Sarovich, Stephanie N J Chapple, Erin P Price, Mark Mayo, Matthew T G Holden, Sharon J Peacock, Bart J Currie
Melioidosis is a tropical disease caused by the bacterium Burkholderia pseudomallei. Outbreaks are uncommon and can generally be attributed to a single point source and strain. We used whole-genome sequencing to analyse B. pseudomallei isolates collected from an historical 2-year long case cluster that occurred in a remote northern Australian indigenous island community, where infections were previously linked to a contaminated communal water supply. We analysed the genome-wide relatedness of the two most common multilocus sequence types (STs) involved in the outbreak, STs 125 and 126...
August 2017: Microbial Genomics
https://www.readbyqxmd.com/read/29026621/aeromonas-species-endogenous-endophthalmitis
#12
Laura Ryan, Gareth Higgins, Maeve Doyle
INTRODUCTION: Aeromonas spp. are Gram-negative bacteria classically associated with water sources and a variety of clinical infections in humans. CASE PRESENTATION: A 79-year-old female patient presented with gastroenteritis with associated Aeromonas spp. bloodstream infection. Two days after admission she developed eye symptoms and was diagnosed with endophthalmitis and underwent emergency evisceration and implant. Aeromonas spp. was also recovered from intra-ocular samples...
May 2017: JMM Case Reports
https://www.readbyqxmd.com/read/29026513/quantification-of-monoterpene-emission-sources-of-a-conifer-species-in-response-to-experimental-drought
#13
Marvin Lüpke, Michael Leuchner, Rainer Steinbrecher, Annette Menzel
Monoterpene (MT) emissions of conifer tree species, emitted from de novo synthesis and storage pools, play an important role in plant ecology and physiology. During drought stress both emission sources are affected differently and with conventional measuring techniques they are difficult to separate. We investigated (13)C labelled MT emission of eight 3-year-old Scots pine seedlings in a drought stress experiment using a dynamic gas exchange chamber system (Tree DEMON). Monoterpene, water vapour and CO2 gas exchange were measured for a 2-day normal watering, a 11-day treatment and a 3-day re-watering period...
September 2017: AoB Plants
https://www.readbyqxmd.com/read/29026055/childhood-lead-poisoning-an-overview
#14
REVIEW
K L Hon, C K Fung, A Kc Leung
Childhood lead poisoning is a major public health concern in many countries. In 2015, the Hong Kong SAR Government and its citizens faced a major public health crisis due to the presence of lead in the drinking water of a number of public housing estates. Fortunately, no child was diagnosed with lead poisoning that required treatment with chelation. Lead is a ubiquitous, naturally occurring material that exists in air, dust, soil, and water. It is also widely present in industrial products including petrol, paints, ceramics, food cans, candies, cosmetics, traditional remedies, batteries, solder, stained glass, crystal vessels, ammunition, ceramic glazes, jewelry, and toys...
October 13, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/29026043/mapping-spiral-structure-on-the-far-side-of-the-milky-way
#15
Alberto Sanna, Mark J Reid, Thomas M Dame, Karl M Menten, Andreas Brunthaler
Little is known about the portion of the Milky Way lying beyond the Galactic center at distances of more than 9 kiloparsec from the Sun. These regions are opaque at optical wavelengths because of absorption by interstellar dust, and distances are very large and hard to measure. We report a direct trigonometric parallax distance of [Formula: see text] kiloparsec obtained with the Very Long Baseline Array to a water maser source in a region of active star formation. These measurements allow us to shed light on Galactic spiral structure by locating the Scutum-Centaurus spiral arm as it passes through the far side of the Milky Way and to validate a kinematic method for determining distances in this region on the basis of transverse motions...
October 13, 2017: Science
https://www.readbyqxmd.com/read/29025407/severe-anemia-due-to-pharyngeal-leech-infestation-a%C3%A2-case-report-from-ethiopia
#16
Nebiyu Shitaye, Segenet Shibabaw
BACKGROUND: Leeches are rare blood-sucking endoparasites. Swimming in streams and ponds as well as drinking contaminated water are the major ways to acquire leeches. CASE PRESENTATION: A 6 year old boy who came with a history of hematemesis, frequent spitting of blood stained saliva, fatigue and anorexia to a rural hospital in Ethiopia. This was a rare case of severe anemia caused by a single leech infestation of laryngopharynx that required blood transfusion. CONCLUSION: Leech infestation should be considered as a source of unexplained hematemesis, spitting of blood and severe anemia in rural areas...
October 12, 2017: BMC Surgery
https://www.readbyqxmd.com/read/29024898/maternal-and-embryonic-exposure-to-the-water-soluble-fraction-of-crude-oil-or-lead-induces-behavioral-abnormalities-in-zebrafish-danio-rerio-and-the-mechanisms-involved
#17
Yuanchuan Wang, Chao Shen, Chonggang Wang, Yixi Zhou, Dongxu Gao, Zhenghong Zuo
The water-soluble fraction (WSF) of crude oil plays an important role in the toxicity of crude oil in aquatic environments. Heavy metals, such as lead (Pb) are also important environmental contaminants, which can reach aquatic systems via the effluents of industrial, urban and mining sources. In the present study, we investigated whether maternal and embryonic exposure to the WSF (5, 50 μg/L) or Pb (10, 100 μg/L) could induce behavioral abnormalities in zebrafish. Our results showed that maternal and embryonic exposure to the WSF (5, 50 μg/L) and Pb (10, 100 μg/L) induced swimming activity alterations in larval and juvenile zebrafish...
September 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/29024884/adsorption-desorption-and-hysteresis-phenomenon-of-tebuconazole-in-colombian-agricultural-soils-experimental-assays-and-mathematical-approaches
#18
Carmen S Mosquera-Vivas, María J Martinez, Glenda García-Santos, Jairo A Guerrero-Dallos
The adsorption-desorption, hysteresis phenomenon, and leachability of tebuconazole were studied for Inceptisol and Histosol soils at the surface (0-10 cm) and in the subsurface (40-50 cm) of an agricultural region from Colombia by the batch-equilibrium method and mathematical approaches. The experimental Kfa and Kd (L kg(-1)) values (7.9-289.2) decreased with depth for the two Inceptisols and increased with depth for the Histosol due to the organic carbon content, aryl and carbonyl carbon types. Single-point and desorption isotherms depended on adsorption reversibility and suggested that tebuconazole showed hysteresis; which can be adequately evaluated with the single-point desorption isotherm and the linear model using the hysteresis index HI...
September 30, 2017: Chemosphere
https://www.readbyqxmd.com/read/29023517/developmental-delay-in-the-amazon-the-social-determinants-and-prevalence-among-rural-communities-in-peru
#19
Christopher Westgard, Yossef Alnasser
The consequences of poor child development are becoming increasingly recognized. Programs are being put in place around the world to improve child development by providing healthy and stimulating environments for children. However, these programs often have limited reach and little is known about the prevalence of developmental delay in under-developed communities. The current study set-out to better understand the prevalence of developmental delay in rural communities in the Amazon region of Peru. Also, it explores social determinants that are associated with any delay...
2017: PloS One
https://www.readbyqxmd.com/read/29022684/legionellosis-a-walk-through-to-identification-of-the-source-of-infection
#20
Dimosthenis Chochlakis, Vassilios Sandalakis, Maria Keramarou, Yannis Tselentis, Anna Psaroulaki
OBJECTIVES: Although a number of human Legionnaires' disease in tourists are recorded annually in Europe, there are few cases where a direct link can be made between the infected person and the source of infection (hotel or other accommodation). We present a scheme followed in order to track down and identify the source of infection in a tourist suffering from L. pneumophila sg 5 infection, who was accommodated in seven different hotels during his holidays in the island of Crete, and we comment on various difficulties and draw-backs of the process...
September 2017: Central European Journal of Public Health
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