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Acta Parasitologica

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https://www.readbyqxmd.com/read/29035870/oxidative-stress-and-cytotoxicity-elicited-lipid-peroxidation-in-hemocytes-of-bombyx-mori-larva-infested-with-dipteran-parasitoid-exorista-bombycis
#1
Makwana Pooja, Appukuttan Nair R Pradeep, Shambhavi P Hungund, Chandrashekhar Sagar, Kangayam M Ponnuvel, Arvind K Awasthi, Kanika Trivedy
Parasitization of silkworm, Bombyx mori by invasive larva of dipteran parasitoid Exorista bombycis caused upto 20% revenue loss in sericulture. The parasitism was successful by suppressing host immune system however mechanism of immune suppression induced by E. bombycis is unknown which is unravelled here. The infestation induced cytotoxic symptoms in host hemocytes, such as vacuolated cytoplasm, porous plasma membrane, indented nuclei with condensed chromatin and dilated RER. One of the markers of necrosis is cell permeabilization, which can be measured as released lactate dehydrogenase (LDH)...
December 20, 2017: Acta Parasitologica
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
#2
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/29035868/comparative-analysis-of-codon-usage-pattern-and-its-influencing-factors-in-schistosoma-japonicum-and-ascaris-suum
#3
Gulshana A Mazumder, Arif Uddin, Supriyo Chakraborty
Schistosoma japonicum and Ascaris suum are considered as the major parasites of human which cause various life threatening diseases such as schistomiasis and ascariasis. The codon usage bias (CUB) is known as the phenomenon of more usage of a specific codon than the other synonymous codons for an amino acid. The factors that influence the codon usage bias are mutation pressure, natural selection, gene expression, gene length, GC content, RNA stability, recombination rates, codon position etc. Here we had used various bioinformatic tools and statistical analyses to understand the compositional features, expression level and codon usage bias in the genes of these two species...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035867/natural-occurrence-of-microsporidia-infecting-lepidoptera-in-bulgaria
#4
Daniela Pilarska, Danail Takov, Miroslav Hyliš, Renate Radek, Ivan Fiala, Leellen Solter, Andreas Linde
We examined 34 lepidopteran species belonging to 12 families to determine presence and prevalence of microsporidian pathogens. The insects were collected from May 2009 to July 2012 from 44 sites in Bulgaria. Nosema species were isolated from Archips xylosteana, Tortrix viridana, Operophtera brumata, Orthosia cerasi, and Orthosia cruda. Endoreticulatus sp. was isolated from Eilema complana. The prevalence of all isolates in their hosts was low and ranged from 1.0% to 5.3%. Phylogenetic analyses of the new isolates based on SSU rDNA are presented...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035866/myrmicinosporidium-durum-in-poland-a-new-location-for-this-fungal-ant-endoparasite-and-updated-world-distribution
#5
Gema Trigos Peral, Tomasz Rutkowski, Grzegorz Wojtaszyn, Xavier Espadaler
Myrmicinosporidium durum is an enigmatic fungal parasite of ants with an unclear phylogeny and life cycle. Despite the fact that new records of this fungus have been revealed in the last few years; several countries from Eastern Europe still lack such information. With this study, we reveal the most northerly location of this fungus to date and its first record in Poland a contribution to filling the gaps in data about its European distribution. Additionally, we present an updated compilation of the world distribution of M...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035865/further-study-on-physaloptera-clausa-rudolphi-1819-spirurida-physalopteridae-from-the-amur-hedgehog-erinaceus-amurensis-schrenk-eulipotyphla-erinaceidae
#6
Hui-Xia Chen, Hui-Dong Ju, Yang Li, Liang Li
In the present study, light and scanning electron microscopy (SEM) were used to further study the detailed morphology of Physaloptera clausa Rudolphi, 1819, based on the material collected from the Amur hedgehog E. amurensis Schrenk in China. The results revealed a few previously unreported morphological features and some morphological and morphometric variability between our specimens and the previous studies. The present supplementary morphological characters and morphometric data could help us to recognize this species more accurately...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035864/redescription-of-the-nematode-parasites-of-lizards-strongyluris-oscari-travassos-1923-heterakidae-from-brazil-and-pharyngodon-mamillatus-linstow-1897-pharyngodonidae-from-egypt
#7
Felipe B Pereira, José L Luque, Luiz E R Tavares
Strongyluris oscari Travassos, 1923, parasite of Topidurus torquatus (Wied-Neuwied, 1820) (Tropiduridae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) of Chalcides ocellatus (Forskal, 1775) (Scincidae) from Egypt, were redescribed based on light and scanning electron microscopy, and re-evaluation of specimens from parasitological collections. The following features were accurately observed in S. oscari for the first time: structure of lips and pharyngeal valve, presence and distribution of somatic papillae, number and arrangement of caudal papillae, presence of inner sclerotised structures supporting the ventral sucker and the ventral region in tail of males, and structure of the posterior anal lip in females...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035863/sero-detection-of-toxocara-canis-infection-in-human-with-t-canis-recombinant-arginine-kinase-cathepsin-l-1-and-tes-26-antigens
#8
Anju Varghese, Opinder K Raina, Dinesh Chandra, Bijay R Mirdha, Naresh H Kelawala, Jayesh B Solanki, Niranjan Kumar, Reghu Ravindran, Anandanarayanan Arun, Ajayta Rialch, Hniang Lalrinkima, Rohan N Kelawala, Subhamoy Samanta
Three recombinant antigens viz. arginine kinase, cathepsin L-1 and TES-26 of Toxocara canis were expressed in Escherichia coli and evaluated for their potential in the detection of T. canis larval infection in human in immunoglobulin G-enzyme linked immunosorbent assay (IgG-ELISA). Results of the IgG-ELISA with the above recombinant antigens were confirmed with commercially available IgG detection kit for T. canis infection used as a standard test. All three recombinant antigens were 100% sensitive in the detection of positive cases (n = 6) of T...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035862/first-report-of-pneumonia-caused-by-angiostrongylus-vasorum-in-a-golden-jackal
#9
Pavle Gavrilović, Darko Marinković, Igor Todorović, Aleksandra Gavrilović
Angiostrongylosis caused by metastrongyloid nematode Angiostrongylus vasorum is an emerging parasitic disease in Europe and the red fox (Vulpes vulpes) is considered as a main reservoir species for this parasite. Little is known about the role of other wild canids in the epidemiology of angiostrongylosis. The present paper provides the first description of pathomorphological lesions caused by A. vasorum in a golden jackal (Canis aureus). The paper describes a case of co-infection with A. vasorum and Dirofilaria immitis in a one-year-old female golden jackal, legally hunted near the City of Kovin, South Banat, Serbia...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035861/the-molecular-identification-of-calodium-hepaticum-in-the-wild-brown-rat-rattus-norvegicus-in-poland
#10
Katarzyna Buńkowska-Gawlik, Agnieszka Perec-Matysiak, Klaudia Burzyńska, Joanna Hildebrand
Calodium hepaticum is a parasitic nematode found primarily in rodents but known to infect numerous other mammal species, and causing in humans the hepatic calodiasis. Herein, we present the first finding of C. hepaticum in Rattus norvegicus in Poland. In this study, we have used the combined pepsin-HCl digestion and molecular techniques to detect C. hepaticum infection in the liver. The results confirm the usefulness of molecular approaches for investigating the biology and epidemiology of C. hepaticum. Additionally in this study, the parts of the small subunit rRNA (18S rRNA) gene of Aonchotheca annulosa from bank vole, Aonchotheca erinacei and Eucoleus sp...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035860/expansion-of-ashworthius-sidemi-in-red-deer-and-roe-deer-from-the-lower-silesian-wilderness-and-its-impact-on-infection-with-other-gastrointestinal-nematodes
#11
Aleksander W Demiaszkiewicz, Dorota Merta, Janusz Kobielski, Katarzyna J Filip, Anna M Pyziel
Nematodes Ashworthius sidemi are typical parasites of Asiatic cervids, mostly sika deer (Cervus nippon). Migrating red deer have probably introduced this parasite to the area of Poland from neighbouring countries. The aim of the study was to determine prevalence and intensity of infection of red deer and roe deer from the Lower Silesian Wilderness with A. sidemi after one year from previous studies and to examine the influence of these parasites on other species of gastrointestinal nematodes. 31 abomasa of red deer and 3 abomasa of roe deer from Forest Dictrict of Ruszów have been examined on the presence of parasites...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035859/gastrointestinal-nematodes-infections-and-anthelmintic-resistance-in-grazing-sheep-in-the-eastern-inner-mongolia-in-china
#12
Tianlong Han, Min Wang, Guanghe Zhang, Dongsheng Han, Xinwei Li, Guowen Liu, Xiaobing Li, Zhe Wang
Gastrointestinal nematodes (GIN) are a crucial restraint to grazing sheep production worldwide. This study was conducted to determine the infections and anthelmintic resistance (AR) of GIN in pasture-based sheep in the Eastern Inner Mongolia, China. GIN eggs were tested from 600 grazing sheep feces of 10 farms using saturated saline flotation method and McMaster's method. The egg hatch test (EHT) and the faecal egg count reduction test (FECRT) were used to evaluate resistance of GIN to anthelmintics. We found that the average infection rate was 79...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035858/detection-of-small-number-of-giardia-in-biological-materials-prepared-from-stray-dogs
#13
Leila Esmailikia, Elahe Ebrahimzade, Parviz Shayan, Narges Amininia
Giardia lamblia is an intestinal protozoa with intermittent and low shedding especially in dogs, and the detection of Giardia is accompanied with problems such as sampling and diagnostic method. The objective of this study was to detection of Giardia in biological materials with low number of parasite using parasitological and molecular methods, and also to determine whether the examined stray dogs harbor known zoonotic genotype of Giardia. For this aim 85 fecal and duodenal samples were studied from which 1 was positive by Trichrome staining of stool, 4 were positive by staining of duodenal samples...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035857/humoral-response-of-mice-infected-with-toxocara-canis-following-different-infection-schemes
#14
Jan Novák, Lucie Panská, Tomáš Macháček, Libuše Kolářová, Petr Horák
The study was focused on the dynamics of humoral response to Toxocara canis excretory-secretory antigens (TES antigens) in mice experimentally infected by T. canis L3 larvae in different ways. In particular, we compared the effect of infection with two doses of 1000 larvae vs. repeated infections with a low number of larvae (daily infection with 10 larvae and weekly infection with 100 larvae in the course of 22 weeks). In ELISA, all infections, including both schemes with lower larval doses, elicited significant antibody response...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035856/apparent-isocitrate-lyase-activity-in-leishmania-amazonensis
#15
Concepción Hernández-Chinea, Laura Maimone, Yelitza Campos, Walter Mosca, Pedro J Romero
Early reports have demonstrated the occurrence of glyoxylate cycle enzymes in several Leishmania species. However, these results have been underestimated because genes for the two key enzymes of the cycle, isocitrate lyase (ICL) and malate synthase (MS), are not annotated in Leishmania genomes. We have re-examined this issue in promastigotes of Leishmania amazonensis. Enzyme activities were assayed spectrophotometrically in cellular extracts and characterized partially. A 40 kDa band displaying ICL activity was visualized on zymograms of the extracts...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035855/transovarial-persistence-of-babesia-ovata-dna-in-a-hard-tick-haemaphysalis-longicornis-in-a-semi-artificial-mouse-skin-membrane-feeding-system
#16
Rika Umemiya-Shirafuji, Takeshi Hatta, Kazuhiro Okubo, Moeko Sato, Hiroki Maeda, Aiko Kume, Naoaki Yokoyama, Ikuo Igarashi, Naotoshi Tsuji, Kozo Fujisaki, Noboru Inoue, Hiroshi Suzuki
Bovine piroplasmosis, a tick-borne protozoan disease, is a major concern for the cattle industry worldwide due to its negative effects on livestock productivity. Toward the development of novel therapeutic and vaccine approaches, tick-parasite experimental models have been established to clarify the development of parasites in the ticks and the transmission of the parasites by ticks. A novel tick-Babesia experimental infection model recently revealed the time course of Babesia ovata migration in its vector Haemaphysalis longicornis, which is a dominant tick species in Japan...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035854/genotyping-of-acanthamoeba-spp-from-water-sources-from-northwestern-iran
#17
Ali Haniloo, Ali Pezeshki, Abbas Mahmmodzadeh, Elnaz Kadkhodamohammadi
Acanthamoeba spp. are free-living amoebae which are ubiquitously distributed worldwide and can be found in the wide range of environments, particularly in various types of water sources, where they able to cause important health problems. In the present study, cultures containing Acanthamoeba from water samples were obtained from our earlier survey. For an analysis of the genetic pattern of Acanthamoeba isolates, DNA sequencing of nuclear small-subunit rRNA gene (18S rRNA or Rns) was applied. A phylogenetic analyses of the isolates displayed that all of them were belonged to the potentially pathogenic T4 genotype...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035853/the-gastrointestinal-nematodes-of-paramelomys-lorentzii-and-mammelomys-spp-rodentia-muridae-with-descriptions-of-a-new-genus-and-three-new-species-heligmonellidae-from-papua-new-guinea-and-indonesia
#18
Lesley R Smales
Unidentified cestodes and 14 species of nematode and larvae that could not be placed to family level, were collected from the digestive tracts of 27 individuals of Paramelomys lorentzii, four of Mammelomys lanosus and a single M. rattoides from Papua New Guinea and Papua Indonesia. Of these three were new species. Hughjonestrongylus woolleyae sp. nov. can be distinguished from its congeners in having up to 26 ridges in the synlophe and a dissymmetric dorsal ray. Parvinema bafunminensis gen. nov., sp. nov. can be distinguished from all other genera in the family by the combination of features in the synlophe; with a carene, up to 17 ridges, and the pattern of ridge sizes...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035852/abundance-and-species-composition-of-culicoides-spp-biting-midges-near-cattle-and-horse-in-south-eastern-poland
#19
Magdalena Larska, Maria Grochowska, Lech Lechowski, Jan Franciszek Żmudziński
The aim of the study was to estimate and compare the distribution of Culicoides biting midges species at farms with different main hosts - cattle and horse. Culicoides spp. are known vectors of arboviruses including African horse sickness virus (AHSV), bluetongue virus (BTV) and Schmallenberg virus (SBV). The latter two have been already reported in Polish ruminants recently, while AHSV remains absent, however the risk of its emergence has been increasing in the recent years. In order to establish the activity of potential AHSV vector at vicinity of horses, an OVI midge trap has been placed at the horse stables in the southeastern Poland...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035851/mitochondrial-genotyping-of-fascioloides-magna-from-bavaria-germany
#20
Eva Bazsalovicsová, Ludmila Juhásová, Ivica Králová-Hromadová, Steffen Rehbein
In last few years, a great effort has been made to understand genetic interrelationships of European and North American populations of giant liver fluke Fascioloides magna (Trematoda, Fasciolidae). In Europe, spatial distribution of this parasite is evidently dynamic and ongoing process since new F. magna populations have constantly been emerging. Most recently, occurrence of F. magna in red deer (Cervus elaphus), sika deer (Cervus nippon), fallow deer (Dama dama), roe deer (Capreolus capreolus), and wild boar (Sus scrofa) was reported from north-eastern Bavaria in Germany...
December 20, 2017: Acta Parasitologica
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