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https://www.readbyqxmd.com/read/29150982/visualization-within-the-ventricles-of-the-brain-a-micro-focus-x-ray-study
#1
Edwin John de Jager, André Francois du Plessis, Jakobus Willem Hoffman, Anna Catherina Oettlé, Marius Casparus Bosman
Conceptualization of the ventricular system of the brain by macroscopic studies is complicated by the lack of physical structure of these interconnected cavities. Dissection procedures designed to display the structures in the walls of the ventricles are destructive and not conducive for the appreciation of the ventricular system in its entirety. The application of Micro-focus X-ray tomography affords the possibility to appreciate hidden structures in a non-destructive manner. The aim of this study was to explore the possibility of using micro-focus X-ray tomography in the three-dimensional (3D) visualization of the ventricular system as well as the various neuroanatomical structures within its walls for educational purposes...
November 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29143327/location-of-artifacts-deposited-by-the-blow-fly-lucilia-cuprina-after-feeding-on-human-blood-at-simulated-indoor-crime-scenes
#2
Annalisa Durdle, Timothy J Verdon, Robert John Mitchell, Roland A H van Oorschot
Human DNA profiles can be obtained from fly artifacts (feces and regurgitant) when a fly has been feeding on biological material, sometimes 2 years after deposition. Morphological similarity between artifacts and spots of unaltered biological material make it difficult to distinguish between them, and presumptive and confirmatory forensic tests are unreliable in making the distinction. Knowing possible artifact locations will assist investigators in recognizing where DNA contamination might occur. Flies were released into a house with human blood available under a variety of different climatic and lighting conditions...
November 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29109180/isolation-of-aggressive-behavior-mutants-in-drosophila%C3%A2-using-a-screen-for-wing-damage
#3
Shaun M Davis, Amanda L Thomas, Lingzhi Liu, Ian M Campbell, Herman A Dierick
Aggression is a complex social behavior that is widespread in nature. To date only a limited number of genes that affect aggression have been identified, in large part because the complexity of the phenotype makes screening difficult and time consuming regardless of the species that is studied. We discovered that aggressive group-housed Drosophila melanogaster males inflict damage on each other's wings, and show that wing damage negatively affects their ability to fly and mate. Using this wing-damage phenotype, we screened males from ~1,400 chemically mutagenized strains and found ~40 mutant strains with substantial wing damage...
November 6, 2017: Genetics
https://www.readbyqxmd.com/read/29029218/dose-dependent-effects-on-replication-and-persistence-of-salmonella-enterica-serovar-typhimurium-in-house-flies-diptera-muscidae
#4
Rabecca Chifanzwa, Dana Nayduch
Adult house flies (Musca domestica L.) ingest variable numbers of bacteria when they encounter microbe-rich substrates. Bacterial abundance may affect replication within the fly gut, which subsequently impacts vector potential. This study investigated the dose-dependent replication of GFP-expressing Salmonella enterica serovar Typhimurium (ex Kauffmann and Edwards1952) Le Minor and Popoff 1987, (Enterobacteriales: Enterobacteriaceae) (GFP S. Typhimurium) within the fly alimentary canal. Adult house flies were fed two doses (colony forming units, CFU) of GFP S...
October 4, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29029163/toxicity-and-sublethal-effects-of-cantharidin-on-musca-domestica-diptera-muscidae
#5
Hassan Yasoob, Hafiz Azhar Ali Khan, Yalin Zhang
The house fly, Musca domestica L. (Diptera: Muscidae), is a major pest of medical and veterinary importance all over the world. Management efforts for house flies are usually compromised owing to their resistance to many groups of conventional insecticides. Cantharidin, a natural toxin produced by meloid beetles, is a biopesticide with a reported toxicity to some insect pests including house flies. However, the effects of cantharidin on biological and fitness parameters of house flies have not yet been investigated...
September 27, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28981905/interaction-between-metarhizium-anisopliae-met-and-the-insecticides-used-for-controlling-house-fly-diptera-muscidae-in-poultry-farm-of-malaysia
#6
Song-Quan Ong, Hamdan Ahmad, Abdul Hafiz Ab Majid, Zairi Jaal
The potential of integrating the mycoinsecticide, Metarhizium anisopliae (Met.), into house fly control programs is tremendous. However, the interaction between the fungus and insecticide, when applied at poultry farms, remains poorly understood. This study investigated the interaction between M. anisopliae and two selected insecticides, cyromazine and ChCy (a mixture of chlorpyrifos and cypemethrin), with three objectives: to assess the compatibility of M. anisopliae and the insecticides by measuring fungal vegetative growth and conidia production in the presence of insecticides; to evaluate the effect of M...
November 7, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28981690/insecticidal-potential-of-two-sugar-alcohols-to-musca-domestica-diptera-muscidae
#7
Edwin R Burgess, B H King
Pest management plans for house flies, Musca domestica L. (Diptera: Muscidae), often include insecticides. Because of resistance and environmental concerns with traditional insecticides, safe new pesticides and pesticide formulations are needed. The insecticidal potential of two sugar alcohols, xylitol and erythritol, against adult house flies was assessed. Flies consumed both xylitol and erythritol. The proportion of flies that exhibited the proboscis extension reflex, which is associated with feeding, did not differ significantly between the sugar alcohols and sucrose in an experiment with 20% solutions and older flies, but was less for the sugar alcohols in an experiment with 2M solutions and younger flies...
July 17, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28926617/hidden-biodiversity-in-entomological-collections-the-overlooked-co-occurrence-of-dipteran-and-hymenopteran-ant-parasitoids-in-stored-biological-material
#8
Gabriela Pérez-Lachaud, Jean-Paul Lachaud
Biological collections around the world are the repository of biodiversity on Earth; they also hold a large quantity of unsorted, unidentified, or misidentified material and can house behavioral information on species that are difficult to access or no longer available to science. Among the unsorted, alcohol-preserved material stored in the Formicidae Collection of the 'El Colegio de la Frontera Sur' Research Center (Chetumal, Mexico), we found nine colonies of the ponerine ant Neoponera villosa, that had been collected in bromeliads at Calakmul (Campeche, Mexico) in 1999...
2017: PloS One
https://www.readbyqxmd.com/read/28918158/recombinant-expression-and-characterization-of-lucilia-cuprina-cyp6g3-activity-and-binding-properties-toward-multiple-pesticides
#9
Matthew J Traylor, Jong-Min Baek, Katelyn E Richards, Roberto Fusetto, W Huang, Peter Josh, Zhenzhong Chen, Padma Bollapragada, Richard A J O'Hair, Philip Batterham, Elizabeth M J Gillam
The Australian sheep blowfly, Lucilia cuprina, is a primary cause of sheep flystrike and a major agricultural pest. Cytochrome P450 enzymes have been implicated in the resistance of L. cuprina to several classes of insecticides. In particular, CYP6G3 is a L. cuprina homologue of Drosophila melanogaster CYP6G1, a P450 known to confer multi-pesticide resistance. To investigate the basis of resistance, a bicistronic Escherichia coli expression system was developed to co-express active L. cuprina CYP6G3 and house fly (Musca domestica) P450 reductase...
November 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28893860/coordination-between-differentially-regulated-circadian-clocks-generates-rhythmic-behavior
#10
Deniz Top, Michael W Young
Specialized groups of neurons in the brain are key mediators of circadian rhythms, receiving daily environmental cues and communicating those signals to other tissues in the organism for entrainment and to organize circadian physiology. In Drosophila, the "circadian clock" is housed in seven neuronal clusters, which are defined by their expression of the main circadian proteins, Period, Timeless, Clock, and Cycle. These clusters are distributed across the fly brain and are thereby subject to the respective environments associated with their anatomical locations...
September 11, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28873425/control-of-phlebotomus-argentipes-diptera-psychodidae-sand-fly-in-bangladesh-a-cluster-randomized-controlled-trial
#11
RANDOMIZED CONTROLLED TRIAL
Rajib Chowdhury, Shyla Faria, M Mamun Huda, Vashkar Chowdhury, Narayan Prosad Maheswary, Dinesh Mondal, Shireen Akhter, Sakila Akter, Rajaul Karim Khan, Shah Golam Nabi, Axel Kroeger, Daniel Argaw, Jorge Alvar, Aditya Prasad Dash, Qamar Banu
BACKGROUND: A number of studies on visceral leishmaniasis (VL) vector control have been conducted during the past decade, sometimes came to very different conclusion. The present study on a large sample investigated different options which are partially unexplored including: (1) indoor residual spraying (IRS) with alpha cypermethrin 5WP; (2) long lasting insecticide impregnated bed-net (LLIN); (3) impregnation of local bed-nets with slow release insecticide K-O TAB 1-2-3 (KOTAB); (4) insecticide spraying in potential breeding sites outside of house using chlorpyrifos 20EC (OUT) and different combinations of the above...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28870535/historical-overview-of-infantile-visceral-leishmaniasis-in-el-agamy-alexandria-egypt
#12
REVIEW
Hala A Kassem, John C Beier, Bahira M El Sawaf
Infantile visceral leishmaniasis (IVL) is considered a rare and neglected disease in Egypt. An outbreak of the disease in El Agamy, Alexandria occurred in 1982 although the disease was previously reported 80 years before. Epidemiological and entomological studies were conducted ever since the 1982 outbreak to identify human cases, the parasite, reservoir host and the sand fly vector. Leishmania infantum MON-98, a new and unique zymodeme, was responsible of the disease. Stray dogs acted as the reservoir host and Phlebotomus langeroni was the proven vector...
December 2017: Acta Tropica
https://www.readbyqxmd.com/read/28854114/evidence-for-sticky-trap-avoidance-by-stable-fly-stomoxys-calcitrans-diptera-muscidae-in-response-to-trapped-flies
#13
D V Beresford, J F Sutcliffe
Populations of stable flies, Stomoxys calcitrans, and other filth flies are often sampled using sticky traps. We wanted to know whether flies already caught on sticky traps might inhibit to some extent subsequent flies from being caught. To test this, we recorded the number of stable flies landing on white plastic corrugated panels (Coroplast®), which were prepared according to 4 treatments: 12 live stable flies glued to the surface, 12 live house flies (Musca domestica) glued to the surface, 12 black dots, and no treatment...
September 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28832610/first-fossil-of-an-oestroid-fly-diptera-calyptratae-oestroidea-and-the-dating-of-oestroid-divergences
#14
Pierfilippo Cerretti, John O Stireman, Thomas Pape, James E O'Hara, Marco A T Marinho, Knut Rognes, David A Grimaldi
Calyptrate flies include about 22,000 extant species currently classified into Hippoboscoidea (tsetse, louse, and bat flies), the muscoid grade (house flies and relatives) and the Oestroidea (blow flies, bot flies, flesh flies, and relatives). Calyptrates are abundant in nearly all terrestrial ecosystems, often playing key roles as decomposers, parasites, parasitoids, vectors of pathogens, and pollinators. For oestroids, the most diverse group within calyptrates, definitive fossils have been lacking. The first unambiguous fossil of Oestroidea is described based on a specimen discovered in amber from the Dominican Republic...
2017: PloS One
https://www.readbyqxmd.com/read/28820587/flupyrimin-a-novel-insecticide-acting-at-the-nicotinic-acetylcholine-receptors
#15
Yasumichi Onozaki, Ryo Horikoshi, Ikuya Ohno, Shigeki Kitsuda, Kathleen A Durkin, Tomonori Suzuki, Chiaki Asahara, Natsuko Hiroki, Rena Komabashiri, Rikako Shimizu, Shogo Furutani, Makoto Ihara, Kazuhiko Matsuda, Masaaki Mitomi, Shinzo Kagabu, Katsuhito Uomoto, Motohiro Tomizawa
A novel chemotype insecticide flupyrimin (FLP) [N-[(E)-1-(6-chloro-3-pyridinylmethyl)pyridin-2(1H)-ylidene]-2,2,2-trifluoroacetamide], discovered by Meiji Seika Pharma, has unique biological properties, including outstanding potency to imidacloprid (IMI)-resistant rice pests together with superior safety toward pollinators. Intriguingly, FLP acts as a nicotinic antagonist in American cockroach neurons, and [(3)H]FLP binds to the multiple high-affinity binding components in house fly nicotinic acetylcholine (ACh) receptor (nAChR) preparation...
September 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28780926/development-of-locomotion-over-inclined-surfaces-in-laying-hens
#16
C LeBlanc, B Tobalske, S Bowley, A Harlander-Matauschek
The purpose of the present study was to evaluate locomotor strategies during development in domestic chickens (Gallus gallus domesticus); we were motivated, in part, by current efforts to improve the design of housing systems for laying hens which aim to reduce injury and over-exertion. Using four strains of laying hens (Lohmann Brown, Lohmann LSL lite, Dekalb White and Hyline Brown) throughout this longitudinal study, we investigated their locomotor style and climbing capacity in relation to the degree (0 to 70°) of incline, age (2 to 36 weeks) and the surface substrate (sandpaper or wire grid)...
August 7, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28767715/lafora-disease-in-miniature-wirehaired-dachshunds
#17
Lindsay Swain, Gill Key, Anna Tauro, Saija Ahonen, Peixiang Wang, Cameron Ackerley, Berge A Minassian, Clare Rusbridge
Lafora disease (LD) is an autosomal recessive late onset, progressive myoclonic epilepsy with a high prevalence in the miniature Wirehaired Dachshund. The disease is due to a mutation in the Epm2b gene which results in intracellular accumulation of abnormal glycogen (Lafora bodies). Recent breed-wide testing suggests that the carrier plus affected rate may be as high as 20%. A characteristic feature of the disease is spontaneous and reflex myoclonus; however clinical signs and disease progression are not well described...
2017: PloS One
https://www.readbyqxmd.com/read/28697583/the-gut-microbiota-in-larvae-of-the-housefly-musca-domestica-and-their-horizontal-transfer-through-feeding
#18
Yao Zhao, Wanqiang Wang, Fen Zhu, Xiaoyun Wang, Xiaoping Wang, Chaoliang Lei
House fly larvae provide a prolific and sustainable source of proteins used in poultry and fish feed. Wheat bran is a superior diet for house fly larvae and has been widely investigated to exploit its potential in the food and feed area. Using Illumina MiSeq 16S rDNA sequencing, this study investigated the gut microbiota of house fly larvae feeding on wheat bran and the bacterial community in the wheat bran. The bacterial communities in the house fly larvae were dominated by the phyla Proteobacteria and Firmicutes...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28697379/efficacy-and-evaluation-of-environmental-management-system-to-control-sandfly-vector-of-kala-azar
#19
D S Dinesh, S Kumari, F Hassan, V Kumar, V P Singh, P Das
The established vector for visceral leishmaniasis, Phlebotomus argentipes (Diptera: Psychodidae) breeds inside the human dwellings and cattle shed under crevices at the base of the wall. P. argentipes was controlled by plastering the base of wall (9″height × 9″base). The study was conducted in two phases: (i) Screening of plastering materials (ii) validation of the most suitable material. During the first phase (2014); four intervention materials were evaluated in four different arms: (i) cement (ii) brick chimney fly ash (BCFA i...
July 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28692174/effects-of-pyriproxyfen-on-wild-populations-of-the-housefly-musca-domestica-and-compatibility-with-its-principal-parasitoids
#20
Haim Biale, Christopher J Geden, Elad Chiel
BACKGROUND: The housefly, Musca domestica L., is an important pest of animal agriculture. Effective fly management requires integration of manure management, mass trapping, biological control, and selective insecticide use. Insecticidal control of houseflies is difficult due to the rapidity of resistance development, yet the insect growth regulator pyriproxyfen (PPF) is one of few insecticides that may still be effective. Here, we tested the susceptibility of wild housefly populations in the USA and in Israel to PPF, as well as the effect of PPF on housefly parasitoids of the genera Muscidifurax and Spalangia...
July 10, 2017: Pest Management Science
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