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https://www.readbyqxmd.com/read/28823094/impact-of-insecticides-used-in-soybean-crops-to-the-egg-parasitoid-telenomus-podisi-hymenoptera-platygastridae
#1
C S Stecca, A F Bueno, A Pasini, D M Silva, K Andrade, D M Zirondi Filho
The objective of this study was to evaluate possible side effects of insecticides used in soybean crops on pupae and adults of the egg parasitoid Telenomus podisi Ashmead (Hymenoptera: Platygastridae) under laboratory conditions. The protocol was adapted from standard methodology stablished by the Pesticides and Beneficial Organisms Working Group of the International Organization for Biological and integrated Control (IOBC) for Trichogramma cacoeciae (Marchal) (Hymenoptera: Trichogrammatidae). All tested benzoylureas, diacylhydrazines, diamides and spinosins as well as pyrethroid beta-cyfluthrin were harmless to T...
August 19, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28823035/armored-dna-in-recombinant-baculoviruses-as-controls-in-molecular-genetic-assays
#2
Andrea Freystetter, Christian Paar, Herbert Stekel, Jörg Berg
The widespread use of molecular PCR-based assays in analytical and clinical laboratories brings about the need for test-specific, stable, and reliable external controls (EC) as well as standards and internal amplification controls (IC), in order to arrive at consistent test results. In addition, there is also a growing need to produce and provide stable, well-characterized molecular controls for quality assurance programs. In this study, we describe a novel approach to generate armored double-stranded DNA controls, which are encapsulated in baculovirus (BV) particles of the species Autographa californica multiple nucleopolyhedrovirus...
August 19, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28822938/do-natural-biofilm-impact-nzvi-mobility-and-interactions-with-porous-media-a-column-study
#3
Marc Crampon, Jennifer Hellal, Christophe Mouvet, Guillaume Wille, Caroline Michel, Anke Wiener, Juergen Braun, Patrick Ollivier
Nanoparticles (NP) used as remediation agents for groundwater treatment may interact with biofilms naturally present, altering NP mobility and/or reactivity and thereby NP effectiveness. The influence of the presence of a multi species biofilm on the mobility of two types of zero-valent iron NP (nZVI; NANOFER 25S and optimized NANOFER STAR, NanoIron s.r.o. (Czech Republic)) was tested in laboratory experiments with columns mimicking aquifer conditions. Biofilms were grown in columns filled with sand in nitrate reducing conditions using groundwater from an industrial site as inoculum...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822923/sequential-exposure-to-low-levels-of-pesticides-and-temperature-stress-increase-toxicological-sensitivity-of-crustaceans
#4
Renato Russo, Jeremias Martin Becker, Matthias Liess
Frequent pesticide-related impacts on ecosystems at concentrations considered environmentally safe indicate that the current risk assessment framework for registration of pesticides is not protective enough. Causes may include difficulties in assessing the effects of sequential pesticide pulses and their interaction with environmental stressors. By contrast to such realistic scenarios, risk assessment for registration of pesticides is typically based on tests of a single exposure period under benign laboratory conditions...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822691/fatal-meningitis-in-swine-after-intrathecal-administration-of-adeno-associated-virus-expressing-syngeneic-interleukin-10
#5
Mark D Unger, Josef Pleticha, James E Collins, Anibal G Armien, Jennifer L Brazzell, Laura K Newman, Lukas F Heilmann, Jodi A Scholz, Timothy P Maus, Andreas S Beutler
Interleukin-10 (IL-10) delivered by intrathecal (i.t.) gene vectors is a candidate investigational new drug (IND) for several chronic neurological disorders such as neuropathic pain. We performed a preclinical safety study of IL-10. A syngeneic large animal model was used delivering porcine IL-10 (pIL-10) to the i.t. space in swine by adeno-associated virus serotype 8 (AAV8), a gene vector that was previously found to be nontoxic in the i.t. space. Unexpectedly, animals became ill, developing ataxia, seizures, and an inability to feed and drink, and required euthanasia...
August 1, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28822612/leaching-behaviour-of-incineration-bottom-ash-in-a-reuse-scenario-12years-field-data-vs-lab-test-results
#6
Martina Di Gianfilippo, Jiri Hyks, Iason Verginelli, Giulia Costa, Ole Hjelmar, Francesco Lombardi
Several types of standardized laboratory leaching tests have been developed during the past few decades to evaluate the leaching behaviour of waste materials as a function of different parameters, such as the pH of the eluate and the liquid to solid ratio. However, the link between the results of these tests and leaching data collected from the field (e.g. in disposal or reuse scenarios) is not always straightforward. In this work, we compare data obtained from an on-going large scale field trial, in which municipal solid waste incineration bottom ash is being tested as road sub-base material, with the results obtained from percolation column and pH-dependence laboratory leaching tests carried out on the bottom ash at the beginning of the test...
August 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28822347/screening-and-confirmation-of-steroids-and-nitroimidazoles-in-urine-blood-and-food-matrices-sample-preparation-methods-and-liquid-chromatography-tandem-mass-spectrometric-separations
#7
Ádám Tölgyesi, Enikő Barta, Andrea Simon, Thomas J McDonald, Virender K Sharma
Veterinary drugs containing synthetic anabolic steroid and nitroimidazole active agents are not allowed for their applications in livestock of the European Union (EU). This paper presents analyses of twelve selected steroids and six nitroimidazole antibiotics at low levels (1.56μg/L-4.95μg/L and 0.17μg/kg-2.14μg/kg, respectively) in body fluids and egg incurred samples. Analyses involved clean-up procedures, high performance liquid chromatography (HPLC) separation, and tandem mass spectrometric screening and confirmatory methods...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28822300/drinking-water-to-reduce-alcohol-craving-a-randomized-controlled-study-on-the-impact-of-ghrelin-in-mediating-the-effects-of-forced-water-intake-in-alcohol-addiction
#8
Anne Koopmann, Katharina Lippmann, Rilana Schuster, Iris Reinhard, Patrick Bach, Georg Weil, Marcella Rietschel, Stephanie H Witt, Klaus Wiedemann, Falk Kiefer
BACKGROUND: Recent data suggest that ghrelin is involved in the pathophysiology of alcohol use disorders, affecting alcohol self-administration and craving. Gastric ghrelin secretion is reduced by stomach distension. We now tested the hypothesis whether the clinically well-known effects of high-volume water intake on craving reduction in alcoholism is mediated by acute changes in ghrelin secretion. METHODS: In this randomized human laboratory study, we included 23 alcohol-dependent male inpatient subjects who underwent alcohol cue exposure...
August 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28822262/evaluating-the-influence-of-at-risk-alcohol-use-on-factors-associated-with-smoking-cessation-combining-laboratory-and-ecological-momentary-assessment
#9
Joanna R Sells, Andrew J Waters, R Ross MacLean
OBJECTIVE: Most smokers want to quit but most cessation attempts end in failure. Alcohol consumption is associated with smoking behavior and relapse. We examined the associations between severity of drinking and psychological processes during a cessation attempt in the laboratory and during a quit attempt. METHODS: Smokers (N=209) enrolled in a smoking cessation study were followed from 2 weeks pre-quit through 4 weeks post-quit. Participants scoring 0-7 and 8-15 on the Alcohol Use Disorders Identification Test (AUDIT) were classified as low-risk and high-risk drinkers, respectively...
July 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28822224/is-it-necessary-for-all-samples-to-quantify-25ohd2-and-25ohd3-using-lc-ms-ms-in-clinical-practice
#10
Songlin Yu, Ruiping Zhang, Weiyan Zhou, Xinqi Cheng, Qian Cheng, Liangyu Xia, Shaowei Xie, Yicong Yin, Dandan Sun, Wei Su, Ling Qiu
BACKGROUND: The demand for vitamin D testing is increasing in China. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) immunoassay is specific and accurate but requires expensive equipment, experienced operators, and complicated pretreatment of serum. Automated immunoassays are simple and convenient but only determine total 25-hydroxyvitamin D (25OHD). The objective of this study was to quantify 25OHD2 and 25OHD3 in patients to assist clinical physicians and laboratory directors in choosing the most appropriate method to determine 25OHD...
August 19, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28821991/transcranial-doppler-in-autonomic-testing-standards-and-clinical-applications
#11
REVIEW
Lucy Norcliffe-Kaufmann, Brahyan Galindo-Mendez, Ana-Lucia Garcia-Guarniz, Estibaliz Villarreal-Vitorica, Vera Novak
When cerebral blood flow falls below a critical limit, syncope occurs and, if prolonged, ischemia leads to neuronal death. The cerebral circulation has its own complex finely tuned autoregulatory mechanisms to ensure blood supply to the brain can meet the high metabolic demands of the underlying neuronal tissue. This involves the interplay between myogenic and metabolic mechanisms, input from noradrenergic and cholinergic neurons, and the release of vasoactive substrates, including adenosine from astrocytes and nitric oxide from the endothelium...
August 18, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28821890/detection-rate-of-high-grade-cervical-neoplasia-and-cost-effectiveness-of-high-risk-human-papillomavirus-genotyping-with-reflex-liquid-based-cytology-in-cervical-cancer-screening
#12
Sun Kuie Tay, Lynette Eo Lin, Ronald Ch Goh
INTRODUCTION: This study aimed to determine the prevalence of cervical intraepithelial neoplasia grade 3 or worse (≥CIN3) and cost-effectiveness of human papillomavirus (HPV) genotyping with reflex liquid-based cytology (LBC) for cervical cancer screening in Singapore. MATERIALS AND METHODS: Women who were ≥25 years old and undertook co-testing with LBC and HPV-genotyping (Cobas-4800, Roche, USA) for HPV-16, HPV-18 and 12 high-risk HPV types in a single institution were studied retrospectively...
July 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28821648/bilingual-language-switching-in-the-lab-vs-in-the-wild-the-spatio-temporal-dynamics-of-adaptive-language-control
#13
Esti Blanco-Elorrieta, Liina Pylkkänen
For a bilingual human, every utterance requires a choice about which language to use. This choice is commonly regarded as part of general executive control, engaging prefrontal and anterior cingulate cortices similarly to many types of effortful task-switching. However, while language control within artificial switching paradigms has been heavily studied, the neurobiology of natural switching within socially cued situations has not been characterized. Additionally, although theoretical models address how language control mechanisms adapt to the distinct demands of different interactional contexts, these predictions have not been empirically tested...
August 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821636/twenty-four-hour-rhythmicity-of-circulating-metabolites-effect-of-body-mass-and-type-2-diabetes
#14
Cheryl M Isherwood, Daan R Van der Veen, Jonathan D Johnston, Debra J Skene
Metabolic profiling of individuals with type 2 diabetes mellitus (T2DM) has previously been limited to single-time-point samples, ignoring time-of-day variation. Here, we tested our hypothesis that body mass and T2DM affect daily rhythmicity and concentrations of circulating metabolites across a 24-h day in 3 age-matched, male groups-lean, overweight/obese (OW/OB), and OW/OB with T2DM-in controlled laboratory conditions, which were not confounded by large meals. By using targeted liquid chromatography/mass spectrometry metabolomics, we quantified 130 plasma metabolites every 2 h over 24 h, and we show that average metabolite concentrations were significantly altered by increased body mass (90 of 130) and T2DM (56 of 130)...
August 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28821627/angiographic-and-clinical-outcomes-of-balloon-remodeling-versus-unassisted-coil-embolization-in-the-ruptured-aneurysm-cohort-of-the-gel-the-nec-study
#15
Guilherme Dabus, Waleed Brinjikji, Arun P Amar, Josser E Delgado Almandoz, Orlando M Diaz, Pascal Jabbour, Ricardo Hanel, Ferdinand Hui, Michael Kelly, Kennith F Layton, Jeffrey W Miller, Elad I Levy, Christopher J Moran, Dae Chul Suh, Henry Woo, Robbin Sellar, Brian Hoh, Avery Evans, David F Kallmes
BACKGROUND AND PURPOSE: GEL THE NEC (GTN) was a multicenter prospective registry developed to assess the safety and efficacy of HydroSoft coils in treating intracranial aneurysms. We compared the angiographic and clinical outcomes of aneurysms treated with balloon assisted coil embolization (BACE) versus unassisted coil embolization (CE) in the ruptured aneurysm cohort. MATERIALS AND METHODS: GTN was performed at 27 centers in five countries. Patients aged 21-90 years with a ruptured aneurysm 3-15 mm in size were eligible for enrollment...
August 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28821549/phosphate-catalyzed-hydrogen-peroxide-formation-from-agar-gellan-and-%C3%AE%C2%BA-carrageenan-and-recovery-of-microorganisms-cultivability-by-catalase-and-pyruvate
#16
Kosei Kawasaki, Yoichi Kamagata
Previously, we reported that when agar is autoclaved with phosphate buffer, H2O2 is formed in the resulting medium (PT) and the colony count on the medium inoculated with environmental samples becomes much lower than that on a medium in which agar and phosphate are autoclaved separately (PS) (Appl Environ Microbiol 80:7659-7666). However, the physicochemical mechanisms underlying this observation remain largely unknown. Here, we determined the factors affecting H2O2 formation in agar. The H2O2 formation was pH-dependent: H2O2 was formed at high concentrations in alkaline or neutral phosphate buffer, but not in acidic one...
August 18, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28821437/particle-sizing-of-pharmaceutical-aerosols-via-direct-imaging-of-particle-settling-velocities
#17
Rami Fishler, Frank Verhoeven, Wilbur de Kruijf, Josué Sznitman
We present a novel method for characterizing in near real-time the aerodynamic particle size distributions from pharmaceutical inhalers. The proposed method is based on direct imaging of airborne particles followed by a particle-by-particle measurement of settling velocities using image analysis and particle tracking algorithms. Due to the simplicity of the principle of operation, this method has the potential of circumventing potential biases of current real-time particle analyzers (e.g. Time of Flight analysis), while offering a cost effective solution...
August 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28821251/evaluation-of-different-diagnostic-methods-for-the-detection-of-mycobacterium-avium-subsp-paratuberculosis-in-boot-swabs-and-liquid-manure-samples
#18
Nathalie Hahn, Klaus Failing, Tobias Eisenberg, Karen Schlez, Peter-Michael Zschöck, Karsten Donat, Esra Einax, Heike Köhler
BACKGROUND: Environmental sampling based on boot swabs and/or liquid manure samples is an upcoming strategy for the identification of paratuberculosis (paraTB) positive herds, but only limited data are available regarding the diagnostic performance of molecular detection methods (qPCR) versus faecal culture (FC) for this purpose. In the present study, the test characteristics of two different qPCR protocols (A and B) and a standardized FC protocol, for the detection of Mycobacterium avium subsp...
August 18, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28821219/early-congenital-syphilis-recognising-symptoms-of-an-increasingly-prevalent-disease
#19
Nupur U Patel, Elias Oussedik, Erin T Landis, Lindsay C Strowd
BACKGROUND: Congenital syphilis (CS) is an infectious disease resulting from transplacental transmission of Treponema pallidum spirochetes from an infected mother to fetus during pregnancy. While uncommon, CS has shown an increased incidence in Canada and the United States since 2001 and 2012, respectively. CASE REPORT: We present the case of a 5-week-old female infant with blistering rash on the palms and soles. The infant displayed decreased movement of the left upper extremity, clinically consistent with Parrot pseudoparalysis...
August 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28821197/regional-variability-in-percentage-of-breast-cancers-reported-as-positive-for-her2-in-california-implications-of-patient-demographics-on-laboratory-benchmarks
#20
Chieh-Yu Lin, Eugene E Carneal, Daphne Y Lichtensztajn, Scarlett L Gomez, Christina A Clarke, Kristin C Jensen, Allison W Kurian, Kimberly H Allison
Objectives: The expected regional variability in percent human epidermal growth factor receptor 2 (HER2)-positive breast cancers is not currently clear. Methods: Data from the 2006 to 2011 California Cancer Registry were examined by county and health service area. The influence of demographic and pathologic features was used in a multivariable logistic regression model to compare expected with observed HER2-positive percentages by region. Results: There was significant geographic variation by California counties (11...
September 1, 2017: American Journal of Clinical Pathology
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