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https://www.readbyqxmd.com/read/28174164/improving-malodour-management-in-advanced-cancer-a-10-year-retrospective-study-of-topical-oral-and-maintenance-metronidazole
#1
Reena George, Thotampuri Shanthi Prasoona, Ramu Kandasamy, Renitha Cherian, Thangarathi Celine, Jenifer Jeba, Shakila Murali, David Mathew
OBJECTIVES: To explore the relative effectiveness of topical or oral metronidazole used for malodour in necrotic cancers and to propose a protocol for metronidazole usage in managing malodour. METHODS: A retrospective case note review of the management of malodour over 10 years comparing outcomes with topical, intermittent and maintenance oral metronidazole. RESULTS: Among 179 patients treated for malodour, the commonest primaries were cervical (45%), and head and neck cancers (40%)...
February 6, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28158259/predicting-the-current-potential-and-future-world-wide-distribution-of-the-onion-maggot-delia-antiqua-using-maximum-entropy-ecological-niche-modeling
#2
Shuoying Ning, Jiufeng Wei, Jinian Feng
Climate change will markedly impact biology, population ecology, and spatial distribution patterns of insect pests because of the influence of future greenhouse effects on insect development and population dynamics. Onion maggot, Delia antiqua, larvae are subterranean pests with limited mobility, that directly feed on bulbs of Allium sp. and render them completely unmarketable. Modeling the spatial distribution of such a widespread and damaging pest is crucial not only to identify current potentially suitable climactic areas but also to predict where the pest is likely to spread in the future so that appropriate monitoring and management programs can be developed...
2017: PloS One
https://www.readbyqxmd.com/read/28120807/the-speed-curvature-power-law-in-drosophila-larval-locomotion
#3
Myrka Zago, Francesco Lacquaniti, Alex Gomez-Marin
We report the discovery that the locomotor trajectories of Drosophila larvae follow the power-law relationship between speed and curvature previously found in the movements of human and non-human primates. Using high-resolution behavioural tracking in controlled but naturalistic sensory environments, we tested the law in maggots tracing different trajectory types, from reaching-like movements to scribbles. For most but not all flies, we found that the law holds robustly, with an exponent close to three-quarters rather than to the usual two-thirds found in almost all human situations, suggesting dynamic effects adding on purely kinematic constraints...
October 2016: Biology Letters
https://www.readbyqxmd.com/read/28073023/functional-connectomics-how-maggots-make-up-their-minds
#4
William B Kristan
How Drosophila larvae select one behavior or a sequence of behaviors, and then persist in the final one, has been addressed by a powerful combination of electron-microscopy reconstruction of neuronal connections, genetic manipulations, electrophysiology, and neuronal modeling. Surprisingly, reciprocal inhibitory synaptic connections are major players in choosing, sequencing and maintaining behaviors.
January 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28031474/field-evaluation-of-insecticides-for-control-of-cabbage-maggot-diptera-anthomyiidae-in-rutabaga-in-canada
#5
W G van Herk, R S Vernon, D R Waterer, J H Tolman, P J Lafontaine, R P Prasad
At the time of this research, there were only two insecticides registered for control of cabbage maggot, Delia radicum L., in rutabaga in Canada, one of which (diazinon) will be deregistered by 2017, and resistance having been reported in some areas for the other (chlorpyrifos). To screen for chemistries to replace these organophosphates, and obtain efficacy data comparable between key vegetable brassica production areas in Canada, four small plot field studies were conducted concurrently in British Columbia, Saskatchewan, Ontario, and Quebec in 2009...
December 28, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28017550/a-novel-bioconversion-for-value-added-products-from-food-waste-using-musca-domestica
#6
Yi Niu, Dong Zheng, Binghua Yao, Zizhe Cai, Zhimin Zhao, Shengqing Wu, Peiqing Cong, Depo Yang
Food waste, as a major part of the municipal solid waste has been generated increasingly worldwide. Efficient and feasible utilization of this waste material for productivity process is significant for both economical and environmental reasons. In the present study, Musca domestica larva was used as the carrier to conduct a bioconversion with food waste to get the value-added maggot protein, oil and organic fertilizers. Methods of adult flies rearing, culture medium adjuvant selection, maggot culture conditions, stocking density and the valorization of the waste have been explored...
December 22, 2016: Waste Management
https://www.readbyqxmd.com/read/27997861/comparative-fly-species-composition-on-indoor-and-outdoor-forensic-cases-in-malaysia
#7
Rizal Abdullah Syamsa, Baharudin Omar, Firdaus Mohd Salleh Ahmad, Othman Hidayatulfathi, Abd Wahid Shahrom
Forensic entomology refers to the science of collection and analysis of insect evidence in order to determine the minimum time period since death. This study aimed to investigate the occurrence of forensically important flies on 34 human remains referred to Universiti Kebangsaan Malaysia Medical Centre over a period of three years. Entomological specimens were collected at the death scenes and/or during autopsies. Live specimens were reared into adults while preserved specimens were processed for species identification...
January 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/27991691/morphology-of-rare-exogenous-materials-in-dermatopathology
#8
Angel Fernández-Flores
Dermatopathologists are occasionally challenged by exogenous materials found in their biopsies. Recognition of most of the structures and morphological parts of foreign materials is not always easy because most of the literature thus far has focused on the study of the histological and histopathological aspects of human tissues, as well as on the granulomatous response elicited by such foreign bodies. However, there are some cases of rare exogenous material in biopsies, mainly published as case reports; and dermatopathologists often lose precious time searching for information about such cases...
March 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27986935/bioassay-and-scanning-electron-microscopic-observations-reveal-high-virulence-of-entomopathogenic-fungus-beauveria-bassiana-on-the-onion-maggot-diptera-anthomyiidae-adults
#9
Hui Zhang, Shengyong Wu, Zhenlong Xing, Xiaoqing Wang, Zhongren Lei
When flies were dipped in 1 × 10(8) conidia/ml conidia suspensions and then kept in the incubator (22 ± 1 °C, 70 ± 5% RH), scanning electron microscope observations revealed that, at 2 h, the majority of adhering Beauveria bassiana conidia were attached to either the wing surface or the interstitial area between the macrochaetae on the thorax and abdomen of the onion maggot adults. Germ tubes were being produced and had oriented toward the cuticle by 18 h. Penetration of the insect cuticle had occurred by 36 h, and by 48 h, germ tubes had completely penetrated the cuticle...
December 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27876924/first-report-of-oriental-latrine-flies-causing-vaginal-myiasis-in-human
#10
Prabhat Chandra Mondal, Santanu Mahato, Barunoday Chakraborty, Shuvra Kanti Sinha
The present paper reports a case of human vaginal myiasis in a 22 year old woman. This is the first report of this fly species to cause vaginal myiasis in human till now. The infested maggots were removed from the vagina and cultured in laboratory. Entomological studies on the emerged flies showed that the infested larvae were Oriental latrine fly Chrysomya megacephala Fabricius. Clinical presentation and treatment strategies are discussed also.
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27868332/the-transcriptional-responses-of-cultured-wound-cells-to-the-excretions-and-secretions-of-medicinal-lucilia-sericata-larvae
#11
Priscila Dauros Singorenko, Roseanne Rosario, John A Windsor, Anthony R Phillips, Cherie Blenkiron
Maggots, through their excretions and secretions (ES), promote wound healing by removing necrotic tissue, counter bacterial infection, and activate wound associated cells. We investigated the effects of a physiological dose of maggot ES on four wound-associated cell types in vitro with Affymetrix gene expression arrays; keratinocytes, endothelial cells, fibroblasts and monocytes. Keratinocytes showed the fewest (n=5; p<0.05, fold-change ±2) and smallest fold-changes (up to 2.32x) in gene expression and conversely THP1 monocytes had the most (n=233) and greatest magnitude (up to 44...
November 21, 2016: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/27861898/a-preliminary-study-of-insect-succession-in-al-ahsaa-oasis-in-the-eastern-region-of-the-kingdom-of-saudi-arabia
#12
Essam A Shaalan, Zeinab A El-Moaty, Salaheldin Abdelsalam, Gail S Anderson
Rabbit carcass decomposition was examined in four seasons in Al-Ahsaa Oasis. Decomposition rate was significantly faster in summer compared with other seasons. Fourteen insect species from four orders and seven families were recorded: Calliphoridae, Muscidae, Sarcophagidae, Formicidae, Histeridae, Dermestidae, and Tenebrionidae. Most of the fly maggots collected were Calliphoridae with only one species from both Muscidae and Sarcophagidae. Maggots of Calliphora vicina (R.-D.) and Chrysomya albiceps (Wiedemann) colonized the carcasses in all seasons while both Ch...
January 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27853125/canine-wound-myiasis-caused-by-lucilia-sericata-diptera-calliphoridae-in-korea
#13
Seongjun Choe, Dongmin Lee, Hansol Park, Hyeong-Kyu Jeon, Hakhyun Kim, Ji-Houn Kang, Cha-Ho Jee, Keeseon S Eom
Myiasis is a relatively common infection of animals kept as pets, although only 1 case of canine myiasis has been described so far in the Republic of Korea. In the present study, we report an additional case of canine wound myiasis with identification of its causative agent, Lucilia sericata. An 8-year-old male Siberian husky dog was referred with anorexia, vomiting, and diarrhea to the Chungbuk National University Veterinary Medical Center, Cheongju-si (city), Chungcheongbuk-do (province), Korea in July 2013...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27817010/the-larval-development-of-habronema-muscae-nematoda-habronematidae-affects-its-intermediate-host-musca-domestica-diptera-muscidae
#14
Rolf Karl Schuster, Saritha Sivakumar
Although the life cycle of the equid stomach parasite Habronema muscae was disclosed more than 100 years ago, little is known about the effect of the developing nematode larvae in its intermediate host, Musca domestica. In a series of experiments, freshly hatched M. domestica larvae were exposed to H. muscae eggs contained in a faecal sample of a naturally infected horse. In daily intervals, 50 fly larvae were removed and transferred on a parasite-free larval rearing medium where they completed their development...
February 2017: Parasitology Research
https://www.readbyqxmd.com/read/27793656/isolation-of-two-insecticidal-toxins-from-venom-of-the-australian-theraphosid-spider-coremiocnemis-tropix
#15
Maria P Ikonomopoulou, Jennifer J Smith, Volker Herzig, Sandy S Pineda, Sławomir Dziemborowicz, Sing-Yan Er, Thomas Durek, John Gilchrist, Paul F Alewood, Graham M Nicholson, Frank Bosmans, Glenn F King
Sheep flystrike is caused by parasitic flies laying eggs on soiled wool or open wounds, after which the hatched maggots feed on the sheep flesh and often cause large lesions. It is a significant economic problem for the livestock industry as infestations are difficult to control due to ongoing cycles of larval development into flies followed by further egg laying. We therefore screened venom fractions from the Australian theraphosid spider Coremiocnemis tropix to identify toxins active against the sheep blowfly Lucilia cuprina, which is the primary cause of flystrike in Australia...
December 1, 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/27792719/-comparative-study-of-the-efficacy-of-larva-therapy-for-debridement-and-control-of-bacterial-burden-compared-to-surgical-debridement-and-topical-application-of-an-antimicrobial
#16
José Contreras-Ruiz, Adán Fuentes-Suárez, Sara Arroyo-Escalante, David Moncada-Barron, María Cristina Sosa-de-Martínez, Ernesto Maravilla-Franco, Judith Guadalupe Domínguez-Cherit
Maggot debridement therapy (MDT) is the use of medical grade maggots of the fly Lucilia sericata for wound debridement. Recent observations show that MDT decreases bacterial burden as well. Venous ulcers are the most commonly seen in wound clinics and require, besides adequate treatment of venous hypertension, proper wound bed preparation with debri dement of necrotic tissue and control of potential infections. To evaluate the efficacy of MDT in venous ulcers a randomized controlled trial was designed to compare MDT to surgical debridement and topical application of silver sulfadiazine (SSD) in 19 patients for 4 weeks...
October 2016: Gaceta Médica de México
https://www.readbyqxmd.com/read/27760786/anthranilic-diamide-insecticides-delivered-via-multiple-approaches-to-control-vegetable-pests-a-case-study-in-snap-bean
#17
Rebecca A Schmidt-Jeffris, Brian A Nault
Many vegetable insect pests are managed using neonicotinoid and pyrethroid insecticides. Unfortunately, these insecticides are toxic to many bees and natural enemies and no longer control some pests that have developed resistance. Anthranilic diamide insecticides provide systemic control of many herbivorous arthropod pests, but exhibit low toxicity to beneficial arthropods and mammals, and may be a promising alternative to neonicotinoids and pyrethroids. Anthranilic diamides may be delivered to vegetable crops via seed, in-furrow, or foliar treatments; therefore, it would be desirable to identify which application method provides high levels of pest control while minimizing the amount of active ingredient...
October 19, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27696738/transcriptome-analysis-of-sugar-beet-root-maggot-tetanops-myopaeformis-genes-modulated-by-the-beta-vulgaris-host
#18
Haiyan Li, Ann C Smigocki
Sugar beet root maggot (SBRM, Tetanops myopaeformis von Röder) is a major but poorly understood insect pest of sugar beet (Beta vulgaris L.). The molecular mechanisms underlying plant defense responses are well documented, however, little information is available about complementary mechanisms for insect adaptive responses to overcome host resistance. To date, no studies have been published on SBRM gene expression profiling. Suppressive subtractive hybridization (SSH) generated more than 300 SBRM ESTs differentially expressed in the interaction of the pest with a moderately resistant (F1016) and a susceptible (F1010) sugar beet line...
October 3, 2016: Insect Science
https://www.readbyqxmd.com/read/27696133/first-record-of-larval-secretions-of-cochliomyia-macellaria-fabricius-1775-diptera-calliphoridae-inhibiting-the-growth-of-staphylococcus-aureus-and-pseudomonas-aeruginosa
#19
F S Masiero, M F K Aquino, M P Nassu, D I B Pereira, D S Leite, P J Thyssen
Maggot debridement therapy (MDT) consists on the intentional and controlled application of sterilized larvae of the order Diptera on necrotic skin lesions with the purpose of cleaning necrotic tissue and removing pathogenic bacteria. During MDT, a marked antimicrobial activity has been reported in literature specially associated with antibacterial substances from Lucilia sericata (Meigen); however, regarding Cochliomyia macellaria (Fabricius), little is known. This study aimed to evaluate in vitro inhibition of bacterial growth of Pseudomonas aeruginosa and Staphylococcus aureus in contact with excretions and secretions (ES) from C...
February 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/27681344/evaluation-of-ethyl-glucuronide-and-ethyl-sulfate-in-calliphora-vicina-as-potential-biomarkers-for-ethanol-intake
#20
Simonetta Lambiase, Angelo Groppi, Denise Gemmellaro, Luca Morini
Ethyl glucuronide (EtG) and ethyl sulfate (EtS) are specific and sensitive biomarkers for the diagnosis of acute or chronic alcohol abuse. Due to postmortem alcohol production in biological tissues, they have recently been evaluated as potential biomarkers of ethanol ingestion. This in vitro study aimed to evaluate all developmental stages of the fly Calliphora vicina L. (Calliphoridae). Different pig substrates were used during the in vitro experiments to rear C. vicina Experiments were performed to: (i) assess the presence of EtG and EtS in larvae, pupae and insects; (ii) study variability due to the substrates characteristics; (iii) evaluate the possibility of false positives due to external alcohol contamination; and (iv) estimate the potential metabolism of ethanol by the insects...
September 27, 2016: Journal of Analytical Toxicology
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