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https://www.readbyqxmd.com/read/28941402/copper-ii-ions-interactions-in-the-systems-with-triamines-and-atp-potentiometric-and-spectroscopic-studies
#1
S K Hoffmann, J Goslar, R Bregier-Jarzebowska, A Gasowska, A Zalewska, L Lomozik
The mode of interaction and thermodynamic stability of complexes formed in binary and ternary Cu(II)/ATP/triamines systems were studied using potentiometric and spectroscopic (NMR, EPR, UV-Vis) methods. It was found that in binary metal-free systems ATP/HxPA species are formed (PA: Spd=spermidine or 3,3-tri=1,7-diamino-4-azaheptane) where the phosphate groups from nucleotides are preferred negative centers and protonated amine groups of amines are positive centers of reaction. In the ternary systems Cu/ATP/Hx(PA) as well as Cu/(ATP)(PA) species are formed...
September 9, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28941401/effect-based-assessment-of-toxicity-removal-during-wastewater-treatment
#2
Pia Välitalo, Riccardo Massei, Ilse Heiskanen, Peter Behnisch, Werner Brack, Andrew J Tindall, David Du Pasquier, Eberhard Küster, Anna Mikola, Tobias Schulze, Markus Sillanpää
Wastewaters contain complex mixtures of chemicals, which can cause adverse toxic effects in the receiving environment. In the present study, the toxicity removal during wastewater treatment at seven municipal wastewater treatment plants (WWTPs) was investigated using an effect-based approach. A battery of eight bioassays was applied comprising of cytotoxicity, genotoxicity, endocrine disruption and fish embryo toxicity assays. Human cell-based CALUX assays, transgenic larval models and the fish embryo toxicity test were particularly sensitive to WWTP effluents...
September 7, 2017: Water Research
https://www.readbyqxmd.com/read/28941391/chlorinated-paraffins-leaking-from-hand-blenders-can-lead-to-significant-human-exposures
#3
Bo Yuan, Anna Strid, Per Ola Darnerud, Cynthia A de Wit, Jessica Nyström, Åke Bergman
BACKGROUND: Chlorinated paraffins (CPs, polychlorinated n-alkanes) are versatile, high-production-volume chemicals. A previous study indicated that hand blenders leak CPs into prepared food. OBJECTIVES: (1) to estimate exposure to CPs from hand blender use compared to background CP exposure from diet; (2) to assess the risk from human dietary exposure to CPs from hand blender use; (3) to investigate how hand blenders leak out CPs. METHODS: CPs were analyzed in food market baskets, in cooking oil/water samples (1g oil/100mL water) mixed using 16 different hand blenders, and in dismantled components of the hand blenders...
September 20, 2017: Environment International
https://www.readbyqxmd.com/read/28941389/vitamin-a-nutritional-status-in-high-and-low-income-postpartum-women-and-its-effect-on-colostrum-and-the-requirements-of-the-term-newborn
#4
Cristiane Santos Sânzio Gurgel, Evellyn C Grilo, Larissa Q Lira, Débora G F Assunção, Priscila G Oliveira, Larisse R M de Melo, Silvia V de Medeiros, Luanna C Pessanha, Roberto Dimenstein, Clélia O Lyra
OBJECTIVE: To evaluate the vitamin A status in serum and colostrum of postpartum women with different socioeconomic status, comparing the colostrum retinol supply with the vitamin A requirement of the newborn. METHODS: Cross-sectional study conducted with 424 postpartum women. Vitamin A maternal dietary intake was estimated using a food frequency questionnaire. Colostrum and serum retinol levels were measured by high performance liquid chromatography (HPLC). Serum retinol concentrations <20μg/dL were indicative of vitamin A deficiency (VAD)...
September 20, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28941387/management-protocols-for-status-epilepticus-in-the-pediatric-emergency-room-systematic-review-article
#5
REVIEW
Cheuk C Au, Ricardo G Branco, Robert C Tasker
OBJECTIVE: This systematic review of national or regional guidelines published in English aimed to better understand variance in pre-hospital and emergency department (ED) treatment of status epilepticus. SOURCES: Systematic search of national or regional guidelines (January 2000 to February 2017) contained within PubMed and Google Scholar databases, and article reference lists. The search keywords were status epilepticus, prolonged seizure, treatment, and guideline...
September 20, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28941355/a-novel-method-to-detect-bias-in-short-read-ngs-data
#6
Jamie Alnasir, Hugh P Shanahan
Detecting sources of bias in transcriptomic data is essential to determine signals of Biological significance. We outline a novel method to detect sequence specific bias in short read Next Generation Sequencing data. This is based on determining intra-exon correlations between specific motifs. This requires a mild assumption that short reads sampled from specific regions from the same exon will be correlated with each other. This has been implemented on Apache Spark and used to analyse two D. melanogaster eye-antennal disc data sets generated at the same laboratory...
September 23, 2017: Journal of Integrative Bioinformatics
https://www.readbyqxmd.com/read/28941352/interlaboratory-variability-of-urinary-iodine-measurements
#7
Till Ittermann, Simone Johner, Harald Below, Matthias Leiterer, Michael Thamm, Thomas Remer, Henry Völzke
BACKGROUND: The iodine status of populations is usually assessed by median urinary iodine concentrations (UIC) in population-based studies, but it is unclear to which extent UIC are comparable across different laboratories. The aim of our study was to investigate the variability of UIC measurements across three well-established German laboratories with long-term clinical-chemical expertise in iodine measurements and to compare these results to the gold standard inductively coupled plasma mass spectrometry (ICP-MS)...
September 23, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28938788/cd4-t-cells-dominate-the-leukocyte-infiltration-response-initiated-by-intra-dermal-injection-of-phytohemagglutinin-into-growing-feathers-in-chickens
#8
K S Sullivan, G F Erf
Phytohemagglutinin (PHA) is commonly used to evaluate cell-mediated immunocompetence. In chickens, PHA is typically injected intra-dermally (i.d.) into the skin (e.g., wing web, wattle, or footpad), and the tissue swelling response is monitored, whereby the extent of tissue swelling positively relates to the individual's cell-mediated immune system capabilities. Although i.d. injected PHA was shown to stimulate mononuclear cell and basophil infiltration to the site of injection, reports on temporal, qualitative, and quantitative aspects of the local cutaneous PHA response are limited...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938787/influence-of-age-and-housing-systems-on-properties-of-tibia-and-humerus-of-lohmann-white-hens1-bone-properties-of-laying-hens-in-commercial-housing-systems
#9
P Regmi, N Nelson, R C Haut, M W Orth, D M Karcher
This study was aimed at analyzing bone properties of Lohmann White hens in different commercial housing systems at various points throughout production. Pullets reared in conventional cages (CC) were either continued in CC or moved to enriched colony cages (EN) at 19 weeks. Pullets reared in cage-free aviaries (AV) were moved to AV hen houses. Bone samples were collected from 60 hens at each of 18 and 72 wk and 30 hens at 26 and 56 wk from each housing system. Left tibiae and humeri were broken under uniform bending to analyze mechanical properties...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938786/prediction-of-egg-freshness-during-storage-using-electronic-nose
#10
Samuel M Yimenu, J Y Kim, B S Kim
The aim of the present study was to investigate the potential of a fast gas chromatography (GC) e-nose for freshness discrimination and for prediction of storage time as well as sensory and internal quality changes during storage of hen eggs. All samples were obtained from the same egg production farm and stored at 20 °C for 20 d. Egg sampling was conducted every 0, 3, 6, 9, 12, 16, and 20 d. During each sampling time, 4 egg cartons (each containing 10 eggs) were randomly selected: one carton for Haugh units, one carton for sensory evaluation and 2 cartons for the e-nose experiment...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938785/growth-performance-and-gastrointestinal-responses-of-broiler-chickens-fed-corn-soybean-meal-diet-without-or-with-exogenous-epidermal-growth-factor-upon-challenge-with-eimeria
#11
E Kim, H Leung, N Akhtar, J Li, J R Barta, Y Wang, C Yang, E Kiarie
Epidermal growth factor (EGF), a protein known for its mitogenic and anti-apoptotic effects was fed to broiler chickens to evaluate growth performance, gastrointestinal measurements, and apparent retention (AR) of components upon challenge with Eimeria. A total of 216, d old male broiler chicks (Ross 708) were placed in cages (6 birds/cage) and allocated to treatments. The treatments were: 1) control (Lactotobacilli lactis fermentation supernatant without EGF), 2) 80 μg of EGF/kg BW/d, and 3) 160 μg of EGF/kg BW/d...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938777/role-of-vasoactive-intestinal-peptide-during-the-transition-from-incubation-behavior-to-rearing-behavior-in-the-female-native-thai-chicken
#12
S Namken, P Sinpru, B Kamkrathok, N Sartsoongnoen, Y Chaiseha
It is well documented that vasoactive intestinal peptide (VIP) is an avian prolactin-releasing factor, regulating the reproductive cycle, that initiates and maintains incubation behavior in avian species. Native Thai chicken has strong maternal behaviors. Thus, it is an excellent animal model to study this phenomenon. Changes in the numbers of VIP neurons within the nucleus inferioris hypothalami (IH) and nucleus infundibuli hypothalami (IN) are associated with maternal behaviors in the native Thai chicken...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938774/evaluation-of-encapsulated-sodium-butyrate-on-growth-performance-energy-digestibility-gut-development-and-salmonella-colonization-in-broilers
#13
J D Liu, H O Bayir, D E Cosby, N A Cox, S M Williams, J Fowler
Two experiments were conducted to determine the effect of an encapsulated sodium butyrate (Na-B) with targeted releasing times on broiler performance, energy digestibility, intestinal morphology, and ceca Salmonella colonization. In experiment 1, 3 different Na-B products (CMA, CMP, and CMS) were evaluated following a challenge with a nalidixic acid-resistant Salmonella typhimurium (STNAR). Cobb-Cobb male birds were placed 8 per pen into 6 replicates for each treatment. Treatments included 6 Na-B treatments (500 and 1,000 ppm of each product) plus 2 control (non-challenged and challenged)...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938772/susceptibility-to-keel-bone-fractures-in-laying-hens-and-the-role-of-genetic-variation
#14
Laura Candelotto, Ariane Stratmann, Sabine G Gebhardt-Henrich, Christina Rufener, Teun van de Braak, Michael J Toscano
Keel bone fractures are a well-known welfare problem in modern commercial laying hen systems. The present study sought to identify genetic variation in relation to keel bone fracture susceptibility of 4 distinct crossbred and one pure line, and by extension, possible breeding traits. Susceptibility to fractures were assessed using an ex vivo impact testing protocol in combination with a study design that minimized environmental variation to focus on genetic differences. The 5 crossbred/pure lines differed in their susceptibility to keel bone fractures with the greatest likelihood of fracture in one of the 3 commercial lines and the lowest susceptibility to fractures in one of the experimental lines...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938767/isothermal-gelation-behavior-of-myofibrillar-proteins-from-white-and-red-chicken-meat-at-different-temperatures
#15
S Glorieux, L Steen, H Paelinck, I Foubert, I Fraeye
This paper provides insights in the isothermal gelation behavior of white and red chicken myofibrillar proteins (CMP) at different temperatures (20 to 80°C) and the underlying aggregation mechanism, allowing understanding of structure formation in poultry products during thermal processing. At low temperatures (20 to 60°C), an increase in aromatic surface hydrophobicity (SoANS) was found, suggesting potential formation of hydrophobic interactions between CMP. At higher temperatures (60 to 80°C), high SoANS and a significant decrease in total sulfhydryl amount (SH-amount) strongly indicate the presence of hydrophobic interactions and disulfide bonding, resulting in aggregation, as suggested by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938763/abnormal-histopathology-fat-percent-and-hepatic-apolipoprotein-a-i-and-apolipoprotein-b100-mrna-expression-in-fatty-liver-hemorrhagic-syndrome-and-their-improvement-by-soybean-lecithin
#16
Yalu Song, Jiming Ruan, Junrong Luo, Tiancheng Wang, Fei Yang, Huabin Cao, Jianzhen Huang, Guoliang Hu
To investigate the etiopathogenesis of fatty liver hemorrhagic syndrome (FLHS) and the protective effects of soybean lecithin against FLHS in laying hens, 135 healthy 300-day-old Hyline laying hens were randomly divided into groups: control (group 1), diseased (group 2), and protected (group 3). Each group contained 45 layers with 3 replicates. The birds in these 3 groups were fed a control diet, a high-energy/low-protein (HELP) diet or the HELP diet supplemented with 3% soybean lecithin instead of maize. The fat percent in the liver was calculated...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938751/new-permeable-cryoprotectant-free-vitrification-method-for-native-human-sperm
#17
J Aizpurua, L Medrano, M Enciso, J Sarasa, A Romero, M A Fernández, M J Gómez-Torres
STUDY QUESTION: Is permeable cryoprotectant-free vitrification of native sperm samples a good alternative to conventional slow freezing? SUMMARY ANSWER: The permeable cryoprotectant-free sperm vitrification protocol tested in this study renders considerably better recovery rates of good quality sperm compared to slow freezing. WHAT IS KNOWN ALREADY: Slow freezing is currently the most commonly used technique for sperm cryopreservation, though this method has been repeatedly shown to have negative effects on both structural and functional sperm features...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938740/selective-outcome-reporting-and-sponsorship-in-randomized-controlled-trials-in-ivf-and-icsi
#18
M Braakhekke, I Scholten, F Mol, J Limpens, B W Mol, F van der Veen
STUDY QUESTION: Are randomized controlled trials (RCTs) on IVF and ICSI subject to selective outcome reporting and is this related to sponsorship? SUMMARY ANSWER: There are inconsistencies, independent from sponsorship, in the reporting of primary outcome measures in the majority of IVF and ICSI trials, indicating selective outcome reporting. WHAT IS KNOWN ALREADY: RCTs are subject to bias at various levels. Of these biases, selective outcome reporting is particularly relevant to IVF and ICSI trials since there is a wide variety of outcome measures to choose from...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938722/novel-transcriptome-resources-for-three-scleractinian-coral-species-from-the-indo-pacific
#19
Carly D Kenkel, Line K Bay
Transcriptomic resources for coral species can provide insight into coral evolutionary history and stress-response physiology. Goniopora columna, Galaxea astreata, and Galaxea acrhelia are scleractinian corals of the Indo-Pacific, representing a diversity of morphologies and life-history traits. G. columna and G. astreata are common and cosmopolitan, while G. acrhelia is largely restricted to the coral triangle and Great Barrier Reef. Reference transcriptomes for these species were assembled from replicate colony fragments exposed to elevated (31°C) and ambient (27°C) temperatures...
September 1, 2017: GigaScience
https://www.readbyqxmd.com/read/28938703/evaluation-of-thromboelastometry-parameters-as-predictive-markers-for-sinusoidal-obstruction-syndrome-in-patients-undergoing-allogeneic-stem-cell-transplantation-for-acute-leukaemia
#20
Joanna Rupa-Matysek, Lidia Gil, Ewelina Wojtasińska, Zuzanna Kanduła, Adam Nowicki, Magdalena Matuszak, Mieczysław Komarnicki
Hepatic sinusoidal obstruction syndrome (previously named veno-occlusive disease, SOS/VOD) is a serious complication of allogeneic stem cell transplantation (HSCT). Early identification of patients at risk of SOS/VOD may possibly improve the outcome and reduce mortality. Rotation thromboelastometry (ROTEM) is global assay allowing for the precise assessment of both bleeding and thrombotic conditions, however, its usefulness in patients undergoing HSCT for acute leukaemia has not been studied. We evaluated the thromboelastometry parameters in patients undergoing allogeneic HSCT for acute leukaemia to identify candidate biomarkers of SOS/VOD occurrence...
August 29, 2017: Oncotarget
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