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lucilia sericata

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https://www.readbyqxmd.com/read/28235562/urate-oxidase-produced-by-lucilia-sericata-medical-maggots-is-localized-in-malpighian-tubes-and-facilitates-allantoin-production
#1
Andre Baumann, Marisa Skaljac, Rüdiger Lehmann, Andreas Vilcinskas, Zdenӗk Franta
Lucilia sericata maggots are the only species currently approved for maggot debridement therapy (MDT), an alternative treatment for chronic and recalcitrant wounds. Maggots promote wound debridement, disinfection and healing by producing a complex mixture of proteins, peptides and low-molecular-weight compounds in their secretions and excretions, but the individual components are not well characterized at the molecular level. Here we investigated the purine catabolism pathway in L. sericata, focusing on the production of allantoin by Urate Oxidase (UO), which is thought to promote wound healing...
February 22, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28193269/how-flies-are-flirting-on-the-fly
#2
Courtney Eichorn, Michael Hrabar, Emma C Van Ryn, Bekka S Brodie, Adam J Blake, Gerhard Gries
BACKGROUND: Flies have some of the most elaborate visual systems in the Insecta, often featuring large, sexually dimorphic eyes with specialized "bright zones" that may have a functional role during mate-seeking behavior. The fast visual system of flies is considered to be an adaptation in support of their advanced flight abilities. Here, we show that the immense processing speed of the flies' photoreceptors plays a crucial role in mate recognition. RESULTS: Video-recording wing movements of abdomen-mounted common green bottle flies, Lucilia sericata, under direct light at 15,000 frames per second revealed that wing movements produce a single, reflected light flash per wing beat...
February 14, 2017: BMC Biology
https://www.readbyqxmd.com/read/28162132/wohlfahrtiimonas-chitiniclastica-current-insights-into-an-emerging-human-pathogen
#3
P Schröttner, W W Rudolph, U Damme, C Lotz, E Jacobs, F Gunzer
Since the first description of Wohlfahrtiimonas chitiniclastica in 2008, a number of well described case reports demonstrating its pathogenic role in humans have been published. Infections may be closely linked to flies, such as Wohlfahrtia magnifica, Lucilia sericata, Chrysomya megacephala or Musca domestica. These insects are potent vectors for the distribution of W. chitiniclastica causing local or systemic infections originating from wounds infested with fly larvae. However, other potential sources of transmission of W...
February 6, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28117913/quality-control-of-a-medicinal-larval-lucilia-sericata-debridement-device-based-on-released-gelatinase-activity
#4
S F Pickles, D I Pritchard
Lucilia sericata Meigen (Diptera: Calliphoridae) larvae are manufactured worldwide for the treatment of chronic wounds. Published research has confirmed that the primary clinical effect of the product, debridement (the degradation of non-viable wound tissue), is accomplished by a range of enzymes released by larvae during feeding. The quality assessment of larval activity is currently achieved during production using meat-based assays, which monitor insect growth and/or the reduction in substrate mass. To support this, the present authors developed a complementary radial diffusion enzymatic assay to produce a visual and measureable indication of the activity of larval alimentary products (LAP) collected under standardized conditions, against a gelatin substrate...
January 24, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28019718/excretions-secretions-from-medicinal-larvae-lucilia-sericata-inhibit-complement-activation-by-two-mechanisms
#5
Tetsuro Tamura, Gwendolyn Cazander, Suzan H M Rooijakkers, Leendert A Trouw, Peter H Nibbering
Larvae of the blowfly Lucilia sericata facilitate wound healing by removing dead tissue and biofilms from non-healing and necrotic wounds. Another beneficial action of larvae and their excretions/secretions (ES) is down-regulation of excessive inflammation. As prolonged complement activation is key to excessive inflammation, the aim of this study was to elucidate the mechanisms underlying the anti-complement activities of ES. Results revealed that heat sensitive serine proteases in ES degrade multiple complement proteins in all steps of the three complement activation pathways...
December 26, 2016: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/27917052/the-blowflies-of-the-madeira-archipelago-species-diversity-distribution-and-identification-diptera-calliphoridaes-l
#6
Catarina Prado E Castro, Krzysztof Szpila, Anabel Martínez-Sánchez, Rego, Isamberto Silva, Artur R M Serrano, Mário Boieiro
Knowledge on the taxonomic diversity and distribution of blowflies from the Madeira Archipelago is updated. New and interesting findings are reported for poorly studied islands and islets of this archipelago, together with a brief analysis of the diversity of Macaronesian Calliphoridae s. l. Seven blowfly species were collected during this study, including the first records of Calliphora vicina Robineau-Desvoidy, 1830, Chrysomya albiceps (Wiedemann, 1819), Lucilia sericata (Meigen, 1826), Pollenia rudis (Fabricius, 1794) and Stomorhina lunata (Fabricius, 1805) from Porto Santo, and of Calliphora vicina, Lucilia sericata and Stomorhina lunata from Desertas Islands...
2016: ZooKeys
https://www.readbyqxmd.com/read/27876970/larvicidal-activity-of-camphor-and-lavender-oils-against-sheep-blowfly-luciliasericata-diptera-calliphoridae
#7
Hatem A Shalaby, Rabab M El Khateeb, Amira H El Namaky, Heba M Ashry, Omnia M Kandil, Sanaa K A Abou El Dobal
In this study, the essential oils of camphor and lavender were tested in vitro against the third instar larvae of Lucilia sericata for the first time, following dipping toxicity technique. The toxicity results revealed that L. sericata larvae were susceptible to the applied essential oils. Lavender oil was more effective than camphor in killing of L. sericata larvae. With 32 % concentration, the mortality percentages of larvae were 100 and 93.3 %, respectively. Light and scanning electron microscopic examinations were done to determine the cuticular changes of L...
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
#8
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
#9
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
#10
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/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
#11
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/27770452/cuticle-hydrolysis-in-four-medically-important-fly-species-by-enzymes-of-the-entomopathogenic-fungus-conidiobolus-coronatus
#12
M I Boguś, E Włóka, A Wrońska, A Kaczmarek, M Kazek, K Zalewska, M Ligęza-Żuber, M Gołębiowski
Entomopathogenic fungi infect insects via penetration through the cuticle, which varies remarkably in chemical composition across species and life stages. Fungal infection involves the production of enzymes that hydrolyse cuticular proteins, chitin and lipids. Host specificity is associated with fungus-cuticle interactions related to substrate utilization and resistance to host-specific inhibitors. The soil fungus Conidiobolus coronatus (Constantin) (Entomophthorales: Ancylistaceae) shows virulence against susceptible species...
October 22, 2016: Medical and Veterinary Entomology
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
#13
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/27686957/the-effect-of-lucilia-sericata-and-sarconesiopsis-magellanica-derived-larval-therapy-on-leishmania-panamensis
#14
Lissa Cruz-Saavedra, Andrea Díaz-Roa, María A Gaona, Mónica L Cruz, Martha Ayala, Jesús A Cortés-Vecino, Manuel A Patarroyo, Felio J Bello
This study's main objective was to evaluate the action of larval therapy derived from Lucilia sericata and Sarconesiopsis magellanica (blowflies) regarding Leishmania panamensis using an in vivo model. Eighteen golden hamsters (Mesocricetus auratus) were used; they were divided into 6 groups. The first three groups consisted of 4 animals each; these, in turn, were internally distributed into subgroups consisting of 2 hamsters to be used separately in treatments derived from each blowfly species. Group 1 was used in treating leishmanial lesions with larval therapy (LT), whilst the other two groups were used for evaluating the used of larval excretions and secretions (ES) after the ulcers had formed (group 2) and before they appeared (group 3)...
December 2016: Acta Tropica
https://www.readbyqxmd.com/read/27570812/dataset-of-traumatic-myiasis-observed-for-three-dominant-screw-worm-species-in-north-west-pakistan-with-first-report-of-wohlfahrtia-magnifica-schiner
#15
Farrah Zaidi, Syeda Hira Fatima, Ayesha Gul
Regional surveys were carried out in different parts of North West Pakistan among domestic animals (N=57,921) including pets and livestock identifying cases of traumatic myiasis (n=1037). A total of four surveys focused general livestock population during Eid ul Adha (Eid surveys; incidence=1.21%) while another four surveys (Miscellaneous surveys; incidence=7.34%) targeted animal population brought to veterinary hospitals and dispensaries. Timeframe spanned four years from 2012 to 2015. Maggots were sampled and location of the wound was recorded for each host...
September 2016: Data in Brief
https://www.readbyqxmd.com/read/27567983/anti-leishmania-activity-of-lucilia-sericata-and-calliphora-vicina-maggots-in-laboratory-models
#16
Alireza Sanei-Dehkordi, Ali Khamesipour, Kamran Akbarzadeh, Amir Ahmad Akhavan, Akram Mir Amin Mohammadi, Younes Mohammadi, Yavar Rassi, Mohammad Ali Oshaghi, Zahra Alebrahim, Seyed Ebrahim Eskandari, Javad Rafinejad
Use of sterile fly larvae (maggots) of blow flies for the treatment of many different types of skin and soft tissue wounds is called Maggot debridement therapy (MDT). The larvae of blow flies secrete a broad spectrum of compounds with diverse mechanisms of action in the gut and salivary glands called excretion/secretion (ES) products which showed to have antimicrobial activities against Gram negative and positive bacteria. Cutaneous leishmaniasis (CL) which is the common form of leishmaniasis is difficult to treat...
November 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27469950/genome-sequence-of-a-proteus-mirabilis-strain-isolated-from-the-salivary-glands-of-larval-lucilia-sericata
#17
Ye Yuan, Yu Zhang, Shuhua Fu, Tawni L Crippen, David K Visi, M Eric Benbow, Michael S Allen, Jeffery K Tomberlin, Sing-Hoi Sze, Aaron M Tarone
We announce a draft genome sequence of a Proteus mirabilis strain derived from Lucilia sericata salivary glands. This strain is demonstrated to attract and induce oviposition by L. sericata, a common blow fly important to medicine, agriculture, and forensics. The genome sequence will help dissect interkingdom communication between the species.
2016: Genome Announcements
https://www.readbyqxmd.com/read/27400034/induction-of-antibacterial-activity-in-the-blowfly-larvae-by-natural-infection-model
#18
J Zhuang, J Li, H Wang, Y Yao, P Shan, B Jing, P Han
Objective: To investigate the antibacterial activities of blowfly larvae induced by natural infection. Methods: The sterile larvae were mixed in a test tube containing the bacteria E coli which was suspended in phosphate buffered saline (PBS), and incubated at 25 °C for given periods, with sterilized PBS as control group. Then the haemolymph was collected and tested against Staphylococcus aureus and Pseudomonas aeruginosa, respectively. Diameter ring was recorded to indicate the antibacterial activities...
December 9, 2015: West Indian Medical Journal
https://www.readbyqxmd.com/read/27396987/viability-of-lucilia-sericata-maggots-after-exposure-to-wound-antiseptics
#19
Georg Daeschlein, Matthias Napp, Ojan Assadian, Sebastian von Podewils, Kevin Reese, Peter Hinz, Johannes Matiasek, Romy Spitzmueller, Paul Humphreys, Michael Jünger, Axel Kramer
After debridement and before dressing a wound with maggots of calliphorid flies, one frequently performed step is the application of antiseptics to the prepared wound bed. However, the concomitant application of antiseptic agents during maggot therapy is regarded controversial as antiseptics may interfere with maggots' viability. In this experimental in vitro study, the viability of fly maggots was investigated after exposure to various antiseptics frequently used in wound care. Here, we show that Lucilia sericata fly maggots can survive up to an hour's exposure to wound antiseptics such as octenidine, povidone-iodine or polihexanide...
July 11, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27363054/antimicrobial-activity-for-excretion-and-secretion-of-the-greenbottle-fly-larvae-lucilia-sericata-meigen-diptera-calliphoridae
#20
Mostafa I Hassan, Mounir S Amer, Kotb M Hammad, Mahmoud M Zidan
Sterile larval excretion/secretion (ES) exhibited antibacterial activity against some species of bacteria. They were shown to inhibit the growth of Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli and Klebsiella pneumoniae and Fungi Geotricum candidum and Aspergillus fumigatus thus exhibited limited inhibitory effect towards Gram-positive bacteria Streptococcus pyogenes and Staphylococcus epidermidis and Gram-negative Proteous vulgaris and Fungi Syncephalastrum racemosum, Candida albicans, that effect was slowed down when challenged with secretion on a solid media but no zone of complete inhibition was detectqd...
April 2016: Journal of the Egyptian Society of Parasitology
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