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https://www.readbyqxmd.com/read/29049960/lethal-effects-of-cr-iii-alone-and-in-combination-with-propiconazole-and-clothianidin-in-honey-bees
#1
Fabio Sgolastra, Sonia Blasioli, Teresa Renzi, Simone Tosi, Piotr Medrzycki, Roberto Molowny-Horas, Claudio Porrini, Ilaria Braschi
Several anthropogenic contaminants, including pesticides and heavy metals, can affect honey bee health. The effects of mixtures of heavy metals and pesticides are rarely studied in bees, even though bees are likely to be exposed to these contaminants in both agricultural and urban environments. In this study, the lethal toxicity of Cr alone and in combination with the neonicotinoid insecticide clothianidin and the ergosterol-biosynthesis-inhibiting fungicide propiconazole was assessed in Apis mellifera adults...
October 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/29049378/immune-modulatory-genomic-properties-differentiate-gut-microbiota-of-infants-with-and-without-eczema
#2
Seungdae Oh, Gaik Chin Yap, Pei-Ying Hong, Chiung-Hui Huang, Marion M Aw, Lynette Pei-Chi Shek, Wen-Tso Liu, Bee Wah Lee
Gut microbiota play an important role in human immunological processes, potentially affecting allergic diseases such as eczema. The diversity and structure of gut microbiota in infants with eczema have been previously documented. This study aims to evaluate by comparative metagenomics differences in genetic content in gut microbiota of infants with eczema and their matched controls. Stools were collected at the age of one month old from twelve infants from an at risk birth cohort in a case control manner. Clinical follow up for atopic outcomes were carried out at the age of 12 and 24 months...
2017: PloS One
https://www.readbyqxmd.com/read/29049010/biofilm-related-diseases-and-omics-global-transcriptional-profiling-of-enterococcus-faecium-reveals-different-gene-expression-patterns-in-the-biofilm-and-planktonic-cells
#3
Shu Yong Lim, Cindy Shuan Ju Teh, Kwai Lin Thong
Enterococcus faecium is an opportunistic pathogen with a remarkable ability to acquire resistance toward multiple antibiotics, including those of last-resort drugs such as vancomycin and daptomycin. The occurrence of vancomycin-resistant E. faecium is on the rise and there is a need to understand the virulence of this organism. One of the factors that contributes to the virulence is the ability to form biofilms. Since bacteria in biofilm state are more resistant to antibiotics and host immune response, understanding the molecular mechanism of biofilm development is important to control biofilm-related diseases...
October 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/29048274/isolation-and-characterization-of-a-new-iflavirus-from-armigeres-spp-mosquitoes-in-the-philippines
#4
Daisuke Kobayashi, Haruhiko Isawa, Ryosuke Fujita, Katsunori Murota, Kentaro Itokawa, Yukiko Higa, Yukie Katayama, Toshinori Sasaki, Tetsuya Mizutani, Shiroh Iwanaga, Nobuo Ohta, Arlene Garcia-Bertuso, Kyoko Sawabe
During an entomological surveillance for arthropod-borne viruses in the Philippines, we isolated a previously unrecognized virus from female Armigeres spp. mosquitoes. Whole-genome sequencing, genetic characterization and phylogenetic analysis revealed that the isolated virus, designated Armigeres iflavirus (ArIFV), is a novel member of the iflaviruses (genus Iflavirus, family Iflaviridae) and phylogenetically related to Moku virus, Hubei odonate virus 4, slow bee paralysis virus and Graminella nigrifrons virus 1...
October 19, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29045653/a-quality-improvement-project-to-reduce-hypothermia-in-preterm-infants-on-admission-to-the-neonatal-intensive-care-unit
#5
Wai Yan Yip, Bin Huey Quek, Mary Choi Wan Fong, Thilagamangai, Sally Siew Gim Ong, Bee Leong Lim, Bo Chu Lo, Pratibha Agarwal
Objective: To study effectiveness of quality improvement interventions in reducing hypothermia in preterm infants on admission to neonatal intensive care unit. Design: Quality improvement methodologies including multidisciplinary planning and implementation of evidence-based interventions. Data during and post-implementation were collected. Setting and participants: In total, 84 preterm infants with birth weights ≤ 1500 g delivered during implementation period (October 2008-April 2009) were compared with 168 historical controls and 947 infants in the subsequent 4 years...
October 17, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29045387/photobiology-how-flowers-get-the-blues-to-lure-bees
#6
Dimitri D Deheyn
No abstract text is available yet for this article.
October 18, 2017: Nature
https://www.readbyqxmd.com/read/29045384/disorder-in-convergent-floral-nanostructures-enhances-signalling-to-bees
#7
Edwige Moyroud, Tobias Wenzel, Rox Middleton, Paula J Rudall, Hannah Banks, Alison Reed, Greg Mellers, Patrick Killoran, M Murphy Westwood, Ullrich Steiner, Silvia Vignolini, Beverley J Glover
Diverse forms of nanoscale architecture generate structural colour and perform signalling functions within and between species. Structural colour is the result of the interference of light from approximately regular periodic structures; some structural disorder is, however, inevitable in biological organisms. Is this disorder functional and subject to evolutionary selection, or is it simply an unavoidable outcome of biological developmental processes? Here we show that disordered nanostructures enable flowers to produce visual signals that are salient to bees...
October 18, 2017: Nature
https://www.readbyqxmd.com/read/29044873/unbiased-random-mutagenesis-contributes-to-a-better-understanding-of-the-virulent-behaviour-of-paenibacillus-larvae
#8
Tine Descamps, Lina De Smet, Paul De Vos, Dirk C de Graaf
AIMS: American foulbrood, caused by the gram-positive bacteria Paenibacillus larvae, is one of the most severe bacterial diseases of the European honey bee. The bacterium has been known for long, but only the last decade the mechanisms used by the pathogen to cause disease in its host are starting to unravel. In this study the knowledge of this virulent behavior is expanded and several possible virulence factors are suggested. METHODS AND RESULTS: Identification of possible virulence factors has been done by random mutagenesis to ensure an unbiased approach...
October 16, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29043489/comparative-transcriptome-analysis-of-apis-mellifera-antennae-of-workers-performing-different-tasks
#9
Hongyi Nie, Shupeng Xu, Cuiqin Xie, Haiyang Geng, Yazhou Zhao, Jianghong Li, Wei-Fone Huang, Yan Lin, Zhiguo Li, Songkun Su
Honey bee is a social insect. Its colony is mainly coordinated by the chemical signals such as pheromones produced by queen or brood. Correspondingly, the worker bee developed numerous complicated olfactory sensilla in antennae for detection of these colony chemical signals and nectar/pollen signals in foraging. With the normal development of new emerged workers, young adults (nurse bee) worked in colony at the first 2-3 weeks and then followed by the foraging activity outside of the hive, which give rise to great change of the surrounding chemical signals...
October 17, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/29043057/flower-resource-and-land-management-drives-hoverfly-communities-and-bee-abundance-in-seminatural-and-agricultural-grasslands
#10
Andrew Lucas, James C Bull, Natasha de Vere, Penelope J Neyland, Dan W Forman
Pollination is a key ecosystem service, and appropriate management, particularly in agricultural systems, is essential to maintain a diversity of pollinator guilds. However, management recommendations frequently focus on maintaining plant communities, with the assumption that associated invertebrate populations will be sustained. We tested whether plant community, flower resources, and soil moisture would influence hoverfly (Syrphidae) abundance and species richness in floristically-rich seminatural and floristically impoverished agricultural grassland communities in Wales (U...
October 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29042861/corrigendum-natural-killer-cells-from-patients-with-recombinase-activating-gene-and-non-homologous-end-joining-gene-defects-comprise-a-higher-frequency-of-cd56-bright-nkg2a-cells-and-yet-display-increased-degranulation-and-higher-perforin-content
#11
Kerry Dobbs, Giovanna Tabellini, Enrica Calzoni, Ornella Patrizi, Paula Martinez, Silvia Clara Giliani, Daniele Moratto, Waleed Al-Herz, Caterina Cancrini, Morton Cowan, Jacob Bleesing, Claire Booth, David Buchbinder, Siobhan O Burns, Talal A Chatila, Janet Chou, Vanessa Daza-Cajigal, Lisa M Ott de Bruin, Maite Teresa de la Morena, Gigliola Di Matteo, Andrea Finocchi, Raif Geha, Rakesh K Goyal, Anthony Hayward, Steven Holland, Chiung-Hui Huang, Maria G Kanariou, Alejandra King, Blanka Kaplan, Anastasiya Kleva, Taco W Kuijpers, Bee Wah Lee, Vassilios Lougaris, Michel Massaad, Isabelle Meyts, Megan Morsheimer, Benedicte Neven, Sung-Yun Pai, Nima Parvaneh, Alessandro Plebani, Susan Prockop, Ismail Reisli, Jian Yi Soh, Raz Somech, Troy R Torgerson, Yae-Jean Kim, Jolan E Walter, Andrew R Gennery, Sevgi Keles, John P Manis, Emanuela Marcenaro, Alessandro Moretta, Silvia Parolini, Luigi D Notarangelo
[This corrects the article on p. 798 in vol. 8, PMID: 28769923.].
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29042255/comparison-of-raw264-7-human-whole-blood-and-pbmc-assays-to-screen-for-immunomodulators
#12
Ingrid Elisia, Han Bee Pae, Vivian Lam, Rachel Cederberg, Elyse Hofs, Gerald Krystal
The RAW264.7 mouse macrophage cell line is used extensively to carry out in vitro screens for immunomodulators. Compounds that are effective at reducing the expression of pro-inflammatory cytokines or nitric oxide (NO) from lipopolysaccharide (LPS)-stimulated RAW264.7 cells are often considered candidate anti-inflammatory agents for humans. There is, however, very little data on the reliability of this screen to identify bona fide human immunomodulators. We compared the efficacy of 37 purported immunomodulators to modulate LPS or E...
October 14, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/29040892/majority-of-flat-epithelial-atypia-diagnosed-on-biopsy-do-not-require-surgical-excision
#13
Patrick Mun Yew Chan, Niketa Chotai, Eileen Shujuan Lai, Pei Yi Sin, Juliana Chen, Sarah Qinghui Lu, Mui Heng Goh, Bee Kiang Chong, Bernard Chi Shern Ho, Ern Yu Tan
BACKGROUND: Borderline risk lesions such as flat epithelial atypia (FEA) are increasingly being diagnosed on biopsy. The need for surgery is being debated. In this study, we determined the frequency of histological upgrade following a diagnosis of FEA on biopsy and evaluated potential predictive factors. METHODS: Retrospective review was done of 194 women who underwent biopsy of indeterminate lesions (total 195 lesions) that were diagnosed as FEA. The review covered a 10-year period...
October 14, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29040619/sublethal-effects-of-the-neonicotinoid-insecticide-thiamethoxam-on-the-transcriptome-of-the-honey-bees-hymenoptera-apidae
#14
Teng-Fei Shi, Yu-Fei Wang, Fang Liu, Lei Qi, Lin-Sheng Yu
Neonicotinoid insecticides are now the most widely used insecticides in the world. Previous studies have indicated that sublethal doses of neonicotinoids impair learning, memory capacity, foraging, and immunocompetence in honey bees (Apis mellifera, Linnaeus) (Hymenoptera: Apidae). Despite these, few studies have been carried out on the molecular effects of neonicotinoids. In this study, we focus on the second-generation neonicotinoid thiamethoxam, which is currently widely used in agriculture to protect crops...
October 11, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29035869/varroa-destructor-induces-changes-in-the-expression-of-immunity-related-genes-during-the-development-of-apis-mellifera-worker-and-drone-broods
#15
Ewa A Zaobidna, Krystyna Żółtowska, Elżbieta Łopieńska-Biernat
The ectoparasitic mite Varroa destructor has emerged as the major pest of honeybees. Despite extensive research efforts, the pathogenesis of varroosis has not been fully explained. Earlier studies suggested that V. destructor infestation leads to the suppression of the host's immune system. The aim of this study was to analyze the immune responses of 14 genes in the Toll signal transduction pathways, including effector genes of antimicrobial peptides (AMPs), in developing Apis mellifera workers and drones infested with V...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29032686/3-hydroxypterostilbene-suppresses-colitis-associated-tumorigenesis-by-inhibition-of-il-6-stat3-signaling-in-mice
#16
Ching-Shu Lai, Guliangyang Yang, Shiming Li, Pei-Sheng Lee, Bini Wang, Min-Ching Chung, Kalyanam Nagabhushanam, Min-Hsiung Pan, Chi-Tang Ho
3'-Hydroxypterostilbene (trans-3,5-dimethoxy-3',4'-hydroxystilbene) presents in Sphaerophysa salsula, Pterocarpus marsupium, and Honey Bee propolis and has been reported to exhibit several biological activities. Herein, we aimed to explore the chemopreventive effects of dietary 3'-hydroxypterostilbene and underlying molecular mechanisms on colitis-associated cancer using the azoxymethane (AOM)/dextran sodium sulfate (DSS) model. 3'-Hydroxypterostilbene administration effectively ameliorated the colon shortening and number of tumors in AOM/DSS-treated mice (3...
October 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29032464/nutritional-composition-of-honey-bee-food-stores-vary-with-floral-composition
#17
Philip Donkersley, Glenn Rhodes, Roger W Pickup, Kevin C Jones, Eileen F Power, Geraldine A Wright, Kenneth Wilson
Sufficiently diverse and abundant resources are essential for generalist consumers, and form an important part of a suite of conservation strategies for pollinators. Honey bees are generalist foragers and are dependent on diverse forage to adequately meet their nutritional needs. Through analysis of stored pollen (bee bread) samples obtained from 26 honey bee (Apis mellifera L.) hives across NW-England, we quantified bee bread nutritional content and the plant species that produced these stores from pollen...
October 14, 2017: Oecologia
https://www.readbyqxmd.com/read/29031812/nestmate-discrimination-based-on-familiarity-but-not-relatedness-in-eastern-carpenter-bees
#18
J L Vickruck, M H Richards
How animals recognize conspecific individuals has important outcomes in many contexts, but interactions among group members are particularly important. Two recognition criteria are often implicated in these interactions: kin recognition is based on relatedness cues and nestmate recognition is based on familiarity. For social insects, both types of recognition are possible, as many nestmates are close kin and familiarity can develop among individuals that encounter each other repeatedly. To discern whether social insects use kin or nestmate recognition, it is necessary to simultaneously assess how relatedness and familiarity influence behaviour...
October 11, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/29030996/re-examining-the-sensitivity-of-glycated-hemoglobin-to-screen-for-diabetes-mellitus
#19
Chun Wei Yap, Yee Gary Ang, Timothy Peng Lim Quek, Bee Hoon Heng, Daniel Ek Kwang Chew
BACKGROUND: Glycated hemoglobin (HbA1c) is one of the laboratory tests recommended by the ADA to screen for diabetes mellitus (DM). It is particularly suitable for population segments that cannot or are unwilling to fast for a screening test. Our study aims to determine if HbA1c would be a useful tool to screen for DM in a real world setting if ADA guidelines for repeat testing to confirm the diagnosis of DM are strictly adhered to. METHODS: We carried out a retrospective database study by extracting demographic and laboratory data from a chronic disease registry which collects data on adults from three tertiary hospitals and nine large primary care clinics in Singapore...
October 14, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/29030610/angiotensin-converting-enzyme-ance-is-cooperatively-regulated-by-mad-and-pannier-in-drosophila-imaginal-discs
#20
Ah-Ram Kim, Eun-Bee Choi, Mi-Young Kim, Kwang-Wook Choi
Angiotensin-converting enzyme (ACE) is an evolutionarily conserved peptidyl dipeptidase. Mammalian ACE converts angiotensin I to the active vasoconstrictor angiotensin II, thus playing a critical role for homeostasis of the renin-angiotensin system. In Drosophila, the ACE homolog Ance is expressed in specific regions of developing organs, but its regulatory mechanism has not been identified. Here we provide evidence that Ance expression is regulated by a combination of Mad and Pannier (Pnr) in imaginal discs...
October 13, 2017: Scientific Reports
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