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https://www.readbyqxmd.com/read/28720153/molecular-characterization-of-moniezia-sichuanensis-in-captive-musk-deer-moschus-berezovskii
#1
J Xu, H Lin, J Chen, Y Cai, W Fu, H Wang, X Gu, W Lai, X Peng, G Yang
The musk deer (Moschus berezovskii) is an economically important species from which musk is extracted and used in perfumes and medicines. Cestodes (parasitic flatworms) of the genus Moniezia are important parasites that infect this endangered species and can cause high mortality in young deer. In 1982, Moniezia (S.) sichuanensis sp. nov. was described from a specimen obtained from wild musk deer. The new species was distinct from the other described species of Moniezia by the sawtooth-shaped interproglottidal glands, the thick vagina and the absence of a cirrus spine...
July 19, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28719963/prevalence-of-hymenolepis-nana-and-h-diminuta-from-brown-rats-rattus-norvegicus-in-heilongjiang-province-china
#2
Di Yang, Wei Zhao, Yichi Zhang, Aiqin Liu
Hymenolepis nana and Hymenolepis diminuta are globally widespread zoonotic cestodes. Rodents are the main reservoir host of these cestodes. Brown rats (Rattus norvegicus) are the best known and most common rats, and usually live wherever humans live, especially in less than desirable hygiene conditions. Due to the little information of the 2 hymenolepidid species in brown rats in China, the aim of this study was to understand the prevalence and genetic characterization of H. nana and H. diminuta in brown rats in Heilongjiang Province, China...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28713654/predator-prey-interactions-between-native-brine-shrimp-artemia-parthenogenetica-and-the-alien-boatman-trichocorixa-verticalis-influence-of-salinity-predator-sex-and-size-abundance-and-parasitic-status-of-prey
#3
Vanessa Céspedes, Marta I Sánchez, Andy J Green
Trichocorixa verticalis (T. verticalis), native to North America and the Caribbean islands, is an invasive waterboatman species (Corixidae) in the southwest of the Iberian Peninsula. Previous studies in the native range have suggested that predation by T. verticalis can regulate the abundance of Anostracan and Cladoceran zooplankton in saline ecosystems, causing increases in phytoplankton through a trophic cascade. In this experimental study, we tested the predator-prey relationship between the native brine shrimp Artemia parthenogenetica, and T...
2017: PeerJ
https://www.readbyqxmd.com/read/28710688/death-by-food
#4
Roger W Byard
Although death from food is not an uncommon finding in forensic facilities worldwide, the range of underlying lethal mechanisms and associated conditions that should be sought at the time of autopsy is quite disparate. Deaths may occur from i) infectious agents including bacteria, viruses, protozoa, cestodes, nematodes and prions; ii) natural toxins including amanita toxins, tetrodotoxin, ciguatera and scombroid; iii) anaphylaxis; iv) poisoning; v) mechanical issues around airway and gut obstruction and/or perforation; and vi) miscellaneous causes...
July 15, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28694639/primary-paraspinal-hydatidosis-causing-acute-paraplegia
#5
Srihari Sridharan, G S Jagan Narayana, Kalyanasundarabharathi Chidambaram, Anand Prasath Jayachandiran
The zoonotic infection hydatidosis is caused by the tapeworm cestode, Echinococcus granulosus. Though considered endemic in India where association of humans with sheep and dogs form part of the livelihood, primary skeletal muscle involvement of the disease is an extremely rare event. We report a case of primary paraspinal hydatidosis with extradural extension causing acute paraplegia. Excision of the cyst and decompression of the cord was done along with albendazole therapy. Paraspinal hydatid disease is a rare entity, and in regions where hydatid disease is endemic, it can be involved in the differential diagnosis of acute compressive myelopathy...
July 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28693632/longitudinal-study-of-parasite-induced-mortality-of-a-long-lived-host-the-importance-of-exposure-to-non-parasitic-stressors
#6
Hilary M-H Chin, Lien T Luong, Allen W Shostak
Hosts face mortality from parasitic and environmental stressors, but interactions of parasitism with other stressors are not well understood, particularly for long-lived hosts. We monitored survival of flour beetles (Tribolium confusum) in a longitudinal design incorporating cestode (Hymenolepis diminuta) infection, starvation and exposure to the pesticide diatomaceous earth (DE). We found that cestode cysticercoids exhibit increasing morphological damage and decreasing ability to excyst over time, but were never eliminated from the host...
July 11, 2017: Parasitology
https://www.readbyqxmd.com/read/28692673/gastrointestinal-parasite-infections-and-self-medication-in-wild-chimpanzees-surviving-in-degraded-forest-fragments-within-an-agricultural-landscape-mosaic-in-uganda
#7
Matthew R McLennan, Hideo Hasegawa, Massimo Bardi, Michael A Huffman
Monitoring health in wild great apes is integral to their conservation and is especially important where they share habitats with humans, given the potential for zoonotic pathogen exchange. We studied the intestinal parasites of wild chimpanzees (Pan troglodytes schweinfurthii) inhabiting degraded forest fragments amid farmland and villages in Bulindi, Uganda. We first identified protozoan and helminth parasites infecting this population. Sixteen taxa were demonstrated microscopically (9 protozoa, 5 nematodes, 1 cestode, and 1 trematode)...
2017: PloS One
https://www.readbyqxmd.com/read/28688974/a-step-forward-in-the-understanding-of-the-presence-and-expansion-of-echinococcus-multilocularis-in-eastern-europe-using-microsatellite-emsb-genotyping-in-poland
#8
Gérald Umhang, Jacek Karamon, Vanessa Hormaz, Jenny Knapp, Tomasz Cencek, Franck Boué
Alveolar echinococcosis is a severe zoonotic disease caused by the parasite Echinococcus multilocularis. In Europe, the lifecycle of this cestode is mainly sylvatic based on a prey-predator interaction between the red fox and small rodents as definitive and intermediate hosts, respectively. National surveillance of E. multilocularis in red foxes in Poland has reported a clear distinction between low endemic areas (from 2 to 5.7%) in the western half and high endemic areas (11.8 to 50.0%) in the eastern half of the country...
July 5, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28678921/identification-of-ige-and-igg1-specific-antigens-in-echinococcus-granulosus-cyst-fluid
#9
S Li, R Qian, S Wang, J Ye, H Zheng
Cystic echinococcosis (CE) is an anthropozoonotic disease with worldwide distribution and is caused by the cestode Echinococcus granulosus. Anaphylactic shock induced by CE rupture is a serious complication especially in patients with hydatid infections, as the resulting leakage of fluid contains highly toxic endogenous antigen. We aimed to isolate and identify the antigens of specific IgE and IgG1 (sIgE and sIgG1) in E. granulosus cyst fluid (EgCF). Crude antigen for EgCF was prepared from E. granulosus-infected sheep liver...
July 3, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28674952/a-new-genus-and-species-of%C3%A2-the-trypanorhynch-family-otobothriidae-dollfus-1942-from-the-slender-weasel-shark-paragaleus-randalli-compagno-krupp-carpenter-hemigaleidae-in-the-persian-gulf
#10
Mohammad Haseli, Zahra Malekpour Fard
A survey on the cestode fauna of Paragaleus randalli Compagno, Krupp & Carpenter in the Persian Gulf resulted in the discovery of a new trypanorhynch species of the family Otobothriidae Dollfus, 1942, the second otobothrioid species hosted by the family Hemigaleidae Hasse. The new species exhibits the closest morphological similarity to Pristiorhynchus palmi Schaeffner & Beveridge, 2013, the type- and only species of its genus. However, the new species differs from P. palmi in the position of the bothrial pits, the morphology and oncotaxy of the basal armature, the commencement of the hook files on the internal surface, a wider scolex peduncle in the pars bulbosa than in the pars vaginalis, a long neck and the presence of a lateral bothrial groove connecting the two bothrial pits to each other...
July 3, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28668323/cestode-parasites-release-extracellular-vesicles-with-micrornas-and-immunodiagnostic-protein-cargo
#11
María Eugenia Ancarola, Antonio Marcilla, Michaela Herz, Natalia Macchiaroli, Matías Pérez, Sebastián Asurmendi, Klaus Brehm, Carolina Poncini, Mara Rosenzvit, Marcela Cucher
Intercellular communication is crucial in multiple aspects of cell biology. This interaction can be mediated by several mechanisms including extracellular vesicle (EV) transfer. EV secretion by parasites has been reported in protozoans, trematodes and nematodes. Here we report that this mechanism is present in three different species of cestodes, Taenia crassiceps, Mesocestoides corti and Echinococcus multilocularis. To confirm this we determined, in vitro, the presence of EVs in culture supernatants by transmission electron microscopy...
June 29, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28658863/complicated-hydatid-cyst-of-ulna-a-rare-case-report
#12
I V Reddy, A H Ashwin Kumar, Bheemsingh Samorekar, B Amar Babu, Anil Kumar Mettu
Although hydatidosis is not uncommon in tropical countries, still bony involvement is comparatively rare. The aetiological agent is Echinococcus granulosus, a parasite belonging to cestode group with dog as definitive host and man as incidental host. We present a case of young male, who consulted us for painless, multiple swellings in his right forearm of three years duration, with restricted wrist movements. On examination multiple non tender, soft to firm swellings were noted with restricted terminal pronation...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28655342/the-complete-mitochondrial-dna-of-three-monozoic-tapeworms-in-the-caryophyllidea-a-mitogenomic-perspective-on-the-phylogeny-of-eucestodes
#13
Wen X Li, Dong Zhang, Kellyanne Boyce, Bing W Xi, Hong Zou, Shan G Wu, Ming Li, Gui T Wang
BACKGROUND: External segmentation and internal proglottization are important evolutionary characters of the Eucestoda. The monozoic caryophyllideans are considered the earliest diverging eucestodes based on partial mitochondrial genes and nuclear rDNA sequences, yet, there are currently no complete mitogenomes available. We have therefore sequenced the complete mitogenomes of three caryophyllideans, as well as the polyzoic Schyzocotyle acheilognathi, explored the phylogenetic relationships of eucestodes and compared the gene arrangements between unsegmented and segmented cestodes...
June 27, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28647499/complete-sequence-and-characterization-of-the-mitochondrial-genome-of-diphyllobothrium-stemmacephalum-the-type-species-of-genus-diphyllobothrium-cestoda-diphyllobothriidae-using-next-generation-sequencing
#14
Hiroshi Yamasaki, Shinji Izumiyama, Tomoyoshi Nozaki
We first constructed and characterized the complete mitochondrial genome (mitogenome) sequence of Diphyllobothrium stemmacephalum, the type species of genus Diphyllobothrium, using next generation sequencing (NGS). The mitogenome of D. stemmacephalum was 13,716bp, including 12 protein-coding genes, 22 tRNA genes, 2 rRNA genes and 2 longer intergenic non-coding regions, and has features common to mitogenomes of other cestodes. Although it has been accepted that tRNA for serine (trnS2(UCN)) in Platyhelminthes lacks a D arm, the trnS2(UCN) of D...
June 22, 2017: Parasitology International
https://www.readbyqxmd.com/read/28640666/first-report-of-an-adult-tapeworm-cestoda-diphyllobothriidea-in-a-southern-sea-otter-enhydra-lutris-nereis
#15
Colleen Young, Melissa A Miller, Roman Kuchta, Jan Brabec, Seth D Newsome, Murray Dailey
We present a novel case of an intestinal cestode infection in a southern sea otter (Enhydra lutris nereis). The cestode species Diplogonoporus tetrapterus was confirmed genetically. Stable isotope analysis of whiskers collected from the sea otter did not confirm the consumption of fish as the route of exposure.
June 22, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28616494/community-based-surveillance-of-zoonotic-parasites-in-a-one-health-world-a-systematic-review
#16
REVIEW
J M Schurer, E Mosites, C Li, S Meschke, P Rabinowitz
The One Health (OH) concept provides an integrated framework for observing and improving health issues involving human, animal, and environmental factors, and has been applied in particular to zoonotic disease problems. We conducted a systematic review of English and Chinese language peer-reviewed and grey literature databases to identify zoonotic endoparasite research utilizing an OH approach in community-based settings. Our review identified 32 articles where specimens collected simultaneously from all three OH domains (people, animals, and the environment) were assessed for endoparasite infection or exposure...
December 2016: One Health
https://www.readbyqxmd.com/read/28615889/helminth-parasites-of-the-eurasian-water-shrew-neomys-fodiens-pennant-1771-in-south-west-belarus
#17
V V Shimalov
The result of helminthological investigation of 25 Eurasian water shrews during 1996-2011 in South-West Belarus is presented. Sixteen species of helminths (8 species of trematodes, 3 species of cestodes and 5 species of nematodes) were discovered in 92.0 % of animals (23 infected individuals). The most common species is the trematode Neoglyphe locellus (Kossack, 1910). The cestode Triodontolepis sumavensis (Prokopič, 1957), nematodes Capillaria konstantini Romashov, 1999 and Longistriata neomi Lubarskaja, 1962 is specified in Belarus for the first time...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28615888/helminth-infections-of-the-brown-rat-rattus-norvegicus-berkenhout-1769-in-the-biocenoses-of-south-west-belarus
#18
V V Shimalov
The result of helminthological examination of 20 brown rats from various biocenoses of South-West Belarus during 1996-2011 is presented. Twelve animals were infected. Six species of helminths were found: 1 trematode species, 3 cestode species and 2 nematode species. The most often, the brown rat infected with mesocercariae of trematode Alaria alata (Goeze, 1782). The helminth fauna of brown rats living in the biocenoses are specified for the first time in Belarus.
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28615852/therapecutic-efficacy-of-the-leaf-extract-of-croton-joufra-roxb-against-experimental-cestodiasis-in-rats
#19
Shyamalima Gogoi, Arun K Yadav
The leaves of Croton joufra have been used as a traditional medicine in Assam (Northeast India) to treat the intestinal helminthic infections. The aim of this study was to establish the in vitro and in vivo anthelmintic efficacy of the leaf extract of this plant on Hymenolepis diminuta, a zoonotic tapeworm. The plant extract was also screened for its chemical constituents. The in vitro anthelmintic efficacy of the plant was evaluated by physical motility test on adult cestodes, following their exposure to 10, 20, 30 mg/ml concentrations of the crude leaf extract, while the in vivo effect was determined based on the eggs per gram (EPG) counts and worm recovery rates, using an experimentally induced model of H...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28605969/control-of-hymenolepis-nana-infection-as-a-measure-to-improve-mouse-colony-welfare
#20
Alenka Dovč, Gordana Gregurić Gračner, Iztok Tomažič, Ksenija Vlahović, Marina Pavlak, Renata Lindtner Knific, Klemen Kralj, Mateja Stvarnik, Aleksandra Vergles Rataj
After cannibalism had appeared in the reproductive units of a white mouse colony, treatment against confirmed Hymenolepis nana, a tapeworm with zoonotic potential, was performed on 67 mice in the reproductive and nursery units. Faecal droppings were evaluated by flotation and sedimentation methods. The sedimentation method revealed a higher number of positive results before, during and after the treatment, but the flotation method yielded some additional positive cases. In the reproductive unit, H. nana eggs were confirmed in 50% of the tested mice by the flotation and in 70% by the sedimentation method...
June 2017: Acta Veterinaria Hungarica
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