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Parasitology International

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https://www.readbyqxmd.com/read/29126978/toxoplasma-gondii-seroprevalence-in-goats-cats-and-humans-in-russia
#1
Eduard A Shuralev, Nikolai D Shamaev, Malik N Mukminov, Kisaburo Nagamune, Yuji Taniguchi, Taizo Saito, Katsuya Kitoh, Marina I Arleevskaya, Anastasiya Yu Fedotova, Diana R Abdulmanova, Natalya M Aleksandrova, Marina A Efimova, Aynur I Yarullin, Anna R Valeeva, Kamil S Khaertynov, Yasuhiro Takashima
Toxoplasmosis, a most common zoonosis, is caused by the protozoan parasite Toxoplasma gondii. However, there is little epidemiological information on T. gondii infections in humans and livestock animals in Russia. Therefore, in this study, the seroprevalence of T. gondii in goats in Russia was investigated. A total of 216 goats from 32 farms were investigated and 95 of them were seropositive for T. gondii. The difference in seroprevalence between the examined regions was not statistically significant. We next collected serum samples from 99 cats and 181 humans in Kazan city, the state capital of the Republic of Tatarstan, Russia, and examined their T...
November 7, 2017: Parasitology International
https://www.readbyqxmd.com/read/29100927/an-evaluation-of-lipid-metabolism-in-the-insect-trypanosomatid-herpetomonas-muscarum-uncovers-a-pathway-for-the-uptake-of-extracellular-insect-lipoproteins
#2
George Kluck, Karla C Régis, Nuccia N T De Cicco, Lívia Silva-Cardoso, Miria G Pereira, Patrícia Fampa, Alessandra C Chagas-Lima, Alexandre Romeiro, Narcisa L Cunha-Silva, Georgia C Atella
Lipid uptake and metabolism by trypanosomatid parasites from vertebrate host blood have been well established in the literature. However, there is a lack of knowledge regarding the same aspects concerning the parasites that cross the hemolymph of their invertebrate hosts. We have investigated the lipid composition and metabolism of the insect trypanosomatid Herpetomonas muscarum by (3)H- palmitic acid and phosphate ((32)Pi) and the parasite interaction with Lipophorin (Lp) the main lipid carrying protein of insect hemolymph...
October 31, 2017: Parasitology International
https://www.readbyqxmd.com/read/29100926/blood-flukes-cardicola-parvus-and-c-laruei-trematoda-aporocotylidae-life-cycles-and-cryptic-infection-in-spotted-seatrout-cynoscion-nebulosus-teleost-sciaenidae
#3
Sasha V Siegel, Andrea Rivero, Jenna Oberstaller, Beatrice L Colon, Isaure de Buron, Dennis E Kyle
Aporocotylidae comprises a diverse family of fish blood flukes, with adults found in blood or body cavity of marine, brackish, or freshwater fish. Aporocotylids are unique among the Digenea with many developing in polychaetes. The life cycle has been elucidated for only a few species that develop in polychaetes from marine/brackish environments and none for western Atlantic aporocotylids. The basis for this study was observations of blood fluke larvae in terebellids from South Carolina, USA in 1982 prior to possible usage of molecular tools to specifically identify parasite larvae...
October 31, 2017: Parasitology International
https://www.readbyqxmd.com/read/29100925/trypanosoma-evansi-induces-detrimental-immuno-catabolic-alterations-and-condition-like-type-2-diabetes-in-buffaloes
#4
Shanker K Singh, Vivek K Singh, Priyambada Kumari, Udayraj P Nakade, Satish K Garg
The present study aimed to investigate the perturbations in immuno-metabolic and redox status of buffaloes with trypanosomosis. Thirteen buffaloes suffering from clinical trypanosomosis and eight apparently healthy buffaloes were included in the present study. Buffaloes with trypanosomosis found to have markedly elevated levels of interleukin-10 (IL-10), nonesterified fatty acids (NEFA) and beta-hydroxybutyrate (BHBA) in comparison with healthy controls. Whereas, total antioxidant capacity (TAC) and haemoglobin levels of buffaloes with trypanosomosis were significantly lower than the healthy controls...
October 31, 2017: Parasitology International
https://www.readbyqxmd.com/read/29081390/involvement-of-sti1-protein-in-the-differentiation-process-of-trypanosoma-cruzi
#5
Juliana C Schmidt, Lauro Manhães, Stenio P Fragoso, Daniela P Pavoni, Marco A Krieger
The protozoan Trypanosoma cruzi is a parasite exposed to several environmental stressors inside its invertebrate and vertebrate hosts. Although stress conditions are involved in its differentiation processes, little information is available about the stress response proteins engaged in these activities. This work reports the first known association of the stress-inducible protein 1 (STI1) with the cellular differentiation process in a unicellular eukaryote. Albeit STI1 expression is constitutive in epimastigotes and metacyclic trypomastigotes, higher protein levels were observed in late growth phase epimastigotes subjected to nutritional stress...
October 25, 2017: Parasitology International
https://www.readbyqxmd.com/read/29081389/toxoplasma-gondii-ron4-binds-to-heparan-sulfate-on-the-host-cell-surface
#6
Hitoshi Takemae, Kyousuke Kobayashi, Tatsuki Sugi, Yongmei Han, Haiyan Gong, Akiko Ishiwa, Frances C Recuenco, Fumi Murakoshi, Ryo Takano, Yuho Murata, Kisaburo Nagamune, Taisuke Horimoto, Hiroomi Akashi, Kentaro Kato
Toxoplasma gondii rhoptry neck protein 4 (TgRON4) is a component of the moving junction, a key structure for host cell invasion. We previously showed that host cellular β-tubulin is a binding partner of TgRON4 in the invasion process. Here, to identify other binding partners of TgRON4 in the host cell, we examined the binding of TgRON4 to components of the host cell surface. TgRON4 binds to various mammalian cells, but this binding disappeared in glycosaminoglycan- and heparan sulfate-deficient CHO cells and after heparitinase treatment of mammalian cells...
October 25, 2017: Parasitology International
https://www.readbyqxmd.com/read/29081388/analysis-of-genes-encoding-high-antigenicity-polypeptides-in-three-serotypes-of-miamiensis-avidus
#7
Shogo Motokawa, Yukie Narasaki, Jun-Young Song, Yoshihiro Yokoyama, Euichi Hirose, Shoko Murakami, Sung-Ju Jung, Myung-Joo Oh, Kei Nakayama, Shin-Ichi Kitamura
The ciliate Miamiensis avidus causes scuticociliatosis in Japanese flounder Paralichthys olivaceus. We previously reported three serotypes of this ciliate distinguishable by serotype-specific antigenic polypeptides (serotype I, 30kDa; serotype II, 38kDa; serotype III, 34kDa). In this study, we determined the localization site of the serotype-specific polypeptides in the ciliate and determined the genes encoding the polypeptides, using the isolates IyoI (serotype I), Nakajima (serotype II), and Mie0301 (serotype III)...
October 25, 2017: Parasitology International
https://www.readbyqxmd.com/read/29081387/novel-toxoplasma-gondii-inhibitor-chemotypes
#8
A G Sanford, T T Schulze, L P Potluri, R M Hemsley, J J Larson, A K Judge, S J Zach, X Wang, S A Charman, J L Vennerstrom, P H Davis
We profiled three novel T. gondii inhibitors identified from an antimalarial phenotypic high throughput screen (HTS) campaign: styryl 4-oxo-1,3-benzoxazin-4-one KG3, tetrahydrobenzo[b]pyran KG7, and benzoquinone hydrazone KG8. These compounds inhibit T. gondii in vitro with IC50 values ranging from 0.3 to 2μM, comparable to that of 0.25 to 1.5μM for the control drug pyrimethamine. KG3 had no measurable cytotoxicity against five mammalian cell lines, whereas KG7 and KG8 inhibited the growth of 2 of 5 cell lines with KG8 being the least selective for T...
October 25, 2017: Parasitology International
https://www.readbyqxmd.com/read/29079224/a-new-species-of-proctoeces-and-reinstatement-of-proctoeces-humboldti-george-nascimento-and-quiroga-1983-digenea-fellodistomidae-based-on-molecular-and-morphological-evidence
#9
Marcelo E Oliva, Isabel M Valdivia, Leyla Cárdenas, Gabriela Muñoz, Ruben Escribano, Mario George-Nascimento
The most studied digenean of marine organisms in Chile is by far Proctoeces humboldti, a parasite of the intestine of the clingfish Sicyases sanguineus and gonad of the keyhole limpet Fissurella spp. (progenetic metacercariae). The mussel Perumytilus purpuratus has been suggested as the first intermediate host for this digenean. In a study examining the parasites of S. sanguineus from central Chile, we found specimens of Proctoeces showing significant morphological differences with P. humboldti. To assist in the resolution of the taxonomic identification of these specimens, as well sporocysts obtained from the mussel P...
October 24, 2017: Parasitology International
https://www.readbyqxmd.com/read/29056475/immunofluorescent-detection-in-the-ovary-of-host-antibodies-against-a-secretory-ferritin-injected-into-female-haemaphysalis-longicornis-ticks
#10
Remil Linggatong Galay, Tomohide Matsuo, Emmanuel Pacia Hernandez, Melbourne Rio Talactac, Kodai Kusakisako, Rika Umemiya-Shirafuji, Masami Mochizuki, Kozo Fujisaki, Tetsuya Tanaka
Due to the continuous threat of ticks and tick-borne diseases to human and animal health worldwide, and the drawbacks of chemical acaricide application, many researchers are exploring vaccination as an alternative tick control method. Earlier studies have shown that host antibodies can circulate in the ticks, but it has not been confirmed whether these antibodies can be passed on to the eggs. We previously reported that ticks infesting rabbits immunized with a recombinant secretory ferritin of Haemaphysalis longicornis (HlFER2) had reduced egg production and hatching...
October 19, 2017: Parasitology International
https://www.readbyqxmd.com/read/29055694/dna-barcoding-of-metacestodes-found-in-the-guerlinguetus-ingrami-rodentia-sciuridae-reveals-the-occurrence-of-hydatigera-taeniaeformis-sensu-stricto-cyclophyllidea-taeniidae-in-the-americas
#11
Érica Munhoz de Mello, Luis Fernando Viana Furtado, Élida Mara Rabelo, Hudson Alves Pinto
The existence of cryptic species in the genus Hydatigera, cyclophillid cestodes, mainly of felids, was recently described based on molecular studies of parasites from Asia, Europe and Africa. However, the occurrence of H. taeniaeformis sensu stricto (s.s.), the species more widely distributed and with a presumed specificity for murid rodents as intermediate hosts, has not been formally described in Americas. In the present study, during necropsy of an Ingram's squirrel specimen, Guerlinguetus ingrami, found dead in the municipality of Belo Horizonte, Minas Gerais state, Brazil, strobilocerci were found in the liver...
October 18, 2017: Parasitology International
https://www.readbyqxmd.com/read/28988952/uncommon-and-fatal-case-of-cystoisosporiasis-in-a-non-hiv-immunosuppressed-patient-from-a-non-endemic-country
#12
Lucie Post, Cécile Garnaud, Danièle Maubon, Hervé Pelloux, Catherine Mansard, Annick Bosseray, Céline Dard
Cystoisospora belli (previously known as Isospora belli) is a tropical coccidian parasite sometimes leading to severe diarrhea in immunocompromised patients. Here we describe a fatal case of cystoisosporiasis in a non HIV-immunocompromised 71-year-old female with no recent travel history. Infection was either latent or potentially caused by the consumption of contaminated imported food from Asia. Diagnosis was made by microscopical detection of numerous C. belli oocysts in stools without specific staining. Treatment with TMP-SMZ slightly improved diarrhea within 3days, but dehydration subsequently led to acute decompensated heart failure and a fatal evolution...
October 6, 2017: Parasitology International
https://www.readbyqxmd.com/read/28987556/taenia-crassiceps-antigens-induce-a-th2-immune-response-and-attenuate-injuries-experimentally-induced-by-neurotoxoplasmosis-in-balb-c-mice
#13
Amanda J S Souza, Anália C Milhomem, Hanstter H A Rezende, Hidelberto Matos-Silva, Marina C Vinaud, Milton A P Oliveira, Ana M Castro, Ruy S Lino-Júnior
Toxoplasma gondii is a pathogenic agent responsible for causing both systemic and local disease which elicits a typically pro-inflammatory, Th1 immune response. Taenia crassiceps antigen induces a Th2 immune response that immunomodulates Th1 based infections. Therefore the aim of this study was to evaluate whether T. crassiceps cysticerci antigens are able to modulate the inflammatory response triggered in experimental neurotoxoplasmosis (NT). BALB/c mice were inoculated with T. gondii cysts and/or cysticerci antigens and euthanized at 60 and 90days after inoculation (DAI)...
October 5, 2017: Parasitology International
https://www.readbyqxmd.com/read/28987555/characterization-of-13-polymorphic-microsatellite-loci-in-the-japanese-land-leech
#14
Kaori Morishima, Tomohiro Suzuki, Mineaki Aizawa
We developed 13 polymorphic microsatellite loci of the Japanese land leech (Haemadipsa japonica; Haemadipsidea) using an Illumina MiSeq sequencing approach. A total of 42,064 nuclear DNA contigs were filtered for microsatellite motifs, among which 30,873 simple sequence repeat loci were identified. From these sequences, we selected 30 primer sets, and 13 of these loci were successfully amplified. Polymorphism of the 13 loci was tested using 16 individuals sampled from sixteen populations across Japan. The number of alleles and polymorphism information content varied from 5 to 17 and 0...
October 5, 2017: Parasitology International
https://www.readbyqxmd.com/read/28965943/anisakis-spp-larvae-in-three-mesopelagic-and-bathypelagic-fish-species-of-the-central-mediterranean-sea
#15
G Gaglio, P Battaglia, A Costa, M Cavallaro, G Cammilleri, S Graci, M D Buscemi, V Ferrantelli, F Andaloro, F Marino
In this work 437 fish samples of species belonging to the families Myctophidae (Electrona risso and Diaphus metopoclampus) and Phosichthyidae (Vinciguerria attenuata) were examined for the presence of Anisakidae larvae. The study was performed with fishes in the central Mediterranean Sea, particularly in the Strait of Sicily and in the Strait of Messina. The visual inspection and chloro-peptic analysis revealed the presence of nematode parasites with prevalence values between 2.9% in Electrona risso samples and 5...
September 29, 2017: Parasitology International
https://www.readbyqxmd.com/read/28939534/a-new-genus-and-two-new-species-of-dactylogyrid-monogeneans-from-gills-of-neotropical-catfishes-siluriformes-doradidae-and-loricariidae
#16
Aline Angelina Acosta, Tomáš Scholz, Isabel Blasco-Costa, Philippe Vieira Alves, Reinaldo José da Silva
A new genus of dactylogyrid monogeneans (Ancyrocephalinae), Paracosmetocleithrum n. gen., is erected to accommodate P. trachydorasi n. sp. from Trachydoras paraguayensis (Siluriformes: Doradidae) in the Upper Paraná River basin, Brazil. The new genus differs from Neotropical dactylogyrids in the presence of a well-developed ornamentation in the middle portion of the ventral bar, and a sclerotized patch on the surface of the dorsal bar with an inconspicuous medial process that possesses two submedial projections arising from the tapered ends of this patch...
September 20, 2017: Parasitology International
https://www.readbyqxmd.com/read/28917700/use-of-molecular-data-in-species-level-taxonomy-of-parasites-a-commentary
#17
LETTER
David Blair
No abstract text is available yet for this article.
September 13, 2017: Parasitology International
https://www.readbyqxmd.com/read/28942052/phylogenetic-relationships-of-hemiuridae-digenea-hemiuroidea-with-new-morphometric-and-molecular-data-of-aphanurus-mugilis-tang-1981-aphanurinae-from-mullet-fish-of-vietnam
#18
D M Atopkin, V V Besprozvannykh, A Yu Beloded, H D Ngo, N V Ha, N V Tang
Adult Aphanurus mugilis Tang, 1981 worms were detected in the intestine of Moolgarda engeli in the shallow waters off Cat Ba Island, Vietnam. Tang (1981) first described this species in Mugil cephalus off China. The worms in Vietnamese mullet were identical to Chinese specimens in a number of morphometric characteristics, with the exception of body and ovary size. In the present study, morphological characteristics, and the first molecular data for A. mugilis are provided. Additionally, molecular phylogenetic analysis of the family Hemiuridae was performed...
December 2017: Parasitology International
https://www.readbyqxmd.com/read/28942051/clinical-cystoisosporosis-associated-to-porcine-cytomegalovirus-pcmv-suid-herpesvirus-2-infection-in-fattening-pigs
#19
Walter Basso, Hanna Marti, Monika Hilbe, Titus Sydler, Anina Stahel, Esther Bürgi, Xaver Sidler
Cystoisospora (syn. Isospora) suis is the causative agent of neonatal porcine coccidiosis and one of the main causes of diarrhoea in suckling piglets worldwide. Infection with porcine cytomegalovirus (PCMV, Suid herpesvirus 2) causes inclusion body rhinitis in pigs. In a Swiss pig herd (n=2 boars, 7 sows, 2 gilts, 18 finishing pigs, 30 fattening pigs, 54 suckling piglets), an outbreak of PCMV infection with high morbidity in all age categories, characterized by fever, anorexia, reduced general condition, respiratory signs and increased piglet mortality, was diagnosed by histopathology and molecular methods...
December 2017: Parasitology International
https://www.readbyqxmd.com/read/28927907/extra-gastrointestinal-anisakidosis-caused-by-pseudoterranova-azarasi-manifesting-as-strangulated-inguinal-hernia
#20
Akari Mitsuboshi, Hiroshi Yamaguchi, Yusuke Ito, Tetsushi Mizuno, Masaharu Tokoro, Masashi Kasai
The incidence of anisakidosis continues to increase worldwide due to increased consumption of undercooked fish. Although anisakidosis can be categorized into four clinical phenotypes (gastric, intestinal, ectopic, and allergic), ectopic forms of the condition are much less common than gastric or intestinal forms when caused by Pseudoterranova spp. We report the case of a 5-year-old patient who presented with a rapidly growing left inguinal mass and was subsequently diagnosed with extra-gastrointestinal anisakidosis caused by Pseudoterranova azarasi...
December 2017: Parasitology International
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