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Toxocara canis

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https://www.readbyqxmd.com/read/28432449/enteroparasitoses-and-toxocarosis-affecting-children-from-mar-del-plata-city-argentina
#1
Carla Lavallén, Beatriz Brignani, Karina Riesgo, Amalia Rojas, Gabriela Colace, Martín Biscaychipi, Estela Chicote, Cristian Giuntini, Mariela Kifer, María Eugenia Del Río, Guillermo Denegri, Marcela Dopchiz
This study evaluated the existence of enteroparasitoses and toxocarosis in children of peripheral (PC) and urban communities (UC) from Mar del Plata city (Argentina) and their associations with socio-environmental conditions. A Parasite Vulnerability Index (PVI) was elaborated using variables such as overcrowding, floor type, drinking water source, wastewater disposal, solid waste disposal, presence of animals and schooling level. The PC evidenced statistically significant higher frequencies of families with high (38...
April 21, 2017: EcoHealth
https://www.readbyqxmd.com/read/28427692/treatment-resistant-neuromyelitis-optica-spectrum-disorders-associated-with-toxocara-canis-infection-a-case-report
#2
Daisuke Kambe, Kayo Takeoka, Kenta Ogawa, Kosuke Doi, Haruhiko Maruyama, Ayako Yoshida, Toshihiko Suenaga, Takashi Kageyama
A 53-year-old woman was admitted to the department of neurology in Tenri Hospital because of progressive thoracic myelitis a month after she had eaten uncooked bovine liver. A previous episode of right optic neuritis and a positive test for serum anti-aquaporin-4 antibodies indicated a diagnosis of neuromyelitis optica spectrum disorders. Although the patient initially recovered with the reduction of anti-aquaporin-4 antibodies during treatment with intravenous methylprednisolone infusion and plasma exchange, her neurological symptoms deteriorated soon after the completion of plasma exchange...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28424002/enzyme-linked-immunosorbent-assays-for-coproantigen-detection-of-ancylostoma-caninum-and-toxocara-canis-in-dogs-and-toxocara-cati-in-cats
#3
David A Elsemore, Jinming Geng, Jennifer Cote, Rita Hanna, Araceli Lucio-Forster, Dwight D Bowman
We report the development and field validation of 2 ELISAs for the detection of Ancylostoma caninum or Toxocara canis coproantigens in the feces of dogs with experimental and natural infections, and evidence of cross-reactivity with respective feline counterparts. A. caninum-specific coproantigens were detected in feces of experimentally infected dogs starting at 9 d post-infection (dpi), whereas eggs were not seen until 23 dpi. T. canis-specific coproantigens were detected in 3 of 5 experimentally infected dogs by 31 dpi, and 4 of the 5 animals by 38 dpi...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28352060/evaluation-of-the-prevalence-and-clinical-impact-of-toxocariasis-in-patients-with-eosinophilia-of-unknown-origin
#4
Hong-Beum Kim, Jun-Won Seo, Jun-Hyung Lee, Byung-Seok Choi, Sang-Gon Park
Background/Aims: Eosinophilia has numerous diverse causes, and in many patients, it is not possible to establish the cause of eosinophilia. Recently, toxocariasis was introduced as one cause of eosinophilia. The aims of this study were to evaluate the prevalence of toxocariasis and the clinical impact of albendazole treatment for toxocariasis in patients suspected of eosinophilia of unknown origin. Methods: We performed a retrospective chart review. After evaluation of cause of eosinophilia, the patients suspected of eosinophilia of unknown origin performed immunoglobulin G antibody specific assay for the Toxocara canis larval antigen by enzyme-linked immunosorbent assay...
March 30, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28351684/tissue-distribution-and-functional-analysis-of-vitellogenin-6-of-toxocara-canis
#5
Hong-Hong Zhu, Guang-Xu Ma, Yong-Fang Luo, Yong-Li Luo, Sha-Sha Yin, Yi Xiong, Rong-Qiong Zhou
Toxocara canis is an common intestinal nematode of canids and the principal causative agent of human toxocariasis. Vitellogenin (Vg), a source of amino acids and lipids in the eggs, are considered to play an important role in embryo development of a wide range of organisms. In the present study, the transcriptional levels of Tc-vit-6 gene in male and female adult T. canis were determined by quantitative real-time PCR, which indicated high transcription of Tc-vit-6 in the intestine, reproductive tract and body wall of male and female adult T...
March 27, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28342271/more-bark-than-bite-comparative-studies-are-needed-to-determine-the-importance-of-canine-zoonoses-in-aboriginal-communities-a-critical-review-of-published-research
#6
REVIEW
F Smout, L Schrieber, R Speare, L F Skerratt
The objective of this review was to identify and critique over forty years of peer-reviewed literature concerned with the transmission of canine zoonoses to Aboriginal people and determine the zoonotic organisms documented in dogs in Australian Aboriginal communities. A systematic literature search of public health, medical and veterinary databases identified 19 articles suitable for critical appraisal. Thirteen articles documented the occurrence of recognized zoonotic organisms in dogs in Aboriginal communities, including Toxocara canis, Dirofilaria immitis, Streptococcus dysgalactiae, Rickettsia felis, Sarcoptes scabiei and Giardia...
March 25, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28278269/small-rodents-as-paratenic-or-intermediate-hosts-of-carnivore-parasites-in-berlin-germany
#7
Jürgen Krücken, Julia Blümke, Denny Maaz, Janina Demeler, Sabrina Ramünke, Daniela Antolová, Roland Schaper, Georg von Samson-Himmelstjerna
Rodents are important intermediate and paratenic hosts for carnivore parasites, including the important zoonotic agents Toxoplasma, Echinococcus and Toxocara. Monitoring of such parasites in rodents can be used to detect increasing risks for human and veterinary public health. Rodents were trapped at four sites in Berlin, two near the city center, two at the periphery. PCRs were conducted to detect Coccidia (target ITS-1) and specifically Toxoplasma gondii (repetitive element) in brain and ascarids (ITS-2) in muscle or brain tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28157623/toxocariasis-of-the-central-nervous-system-with-report-of-two-cases
#8
Bouthouri Abir, Mansour Malek, Mrissa Ridha
Toxocariasis is a parasitic infection caused by the roundworms Toxocara canis or Toxocara cati, mostly due to accidental ingestion of embryonated eggs. Clinical manifestations vary and are classified according to the organs affected. Central nervous system involvement is an unusual complication. Here, we report two cases with neurological manifestations, in which there was cerebrospinal fluid (CSF) eosinophilia with marked blood eosinophilia and a positive serology for Toxocara both in serum and CSF. Improvement of signs and symptoms after specific treatment was observed in the two cases...
March 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28122583/abundance-zoonotic-potential-and-risk-factors-of-intestinal-parasitism-amongst-dog-and-cat-populations-the-scenario-of-crete-greece
#9
Despoina Kostopoulou, Edwin Claerebout, Dimitrios Arvanitis, Panagiota Ligda, Nikolaos Voutzourakis, Stijn Casaert, Smaragda Sotiraki
BACKGROUND: The objectives of this study were to evaluate the prevalence and infection intensity of intestinal parasites in different dog and cat populations in Crete, Greece, estimate the zoonotic risk and identify risk factors. METHODS: Faecal samples from shelter, household and shepherd dogs and shelter and household cats were analyzed using sedimentation/flotation techniques. Giardia and Cryptosporidium were detected by a quantitative direct immunofluorescence assay (IFA)...
January 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28115175/distribution-and-dynamics-of-soil-contamination-with-toxocara-canis-and-toxocara-cati-eggs-in-poland-and-prevention-measures-proposed-after-20-years-of-study
#10
Hanna Mizgajska-Wiktor, Wojciech Jarosz, Renata Fogt-Wyrwas, Agnieszka Drzewiecka
The studies conducted in the years 1994-2013 allowed to determine the distribution of Toxocara spp. eggs in the soil of different types of urban and rural areas in Poland and to establish seasonal and multi-year dynamics of soil contamination with T. cati and T. canis eggs. Out of 3309 soil samples examined, 14.9% contained the eggs and the average density was 3.43 eggs/100g of soil. The level of soil contamination was the highest in cities, lower in villages, and lowest in small towns. In urban areas eggs of T...
January 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28109772/trichoderma-virens-as-a-biocontrol-of-toxocara-canis-in-vivo-evaluation
#11
Fernando de Souza Maia Filho, Anelise Oliveira da Silva Fonseca, Beatriz Maroneze Persici, Julia de Souza Silveira, Caroline Quintana Braga, Luciana Pötter, Sônia de Avila Botton, Daniela Isabel Brayer Pereira
BACKGROUND: Microorganisms have been widely studied as biological control agents of parasites of medical and veterinary importance. Coprophagous arthropods, bacteria and fungi are among the different organisms evaluated as potential biological control agents. Nematophagous fungi capture and digest the free forms of nematodes in the soil. Due to its zoonotic potential, Toxocara canis have been brought to the attention of researchers. AIMS: The aim of the present study was to determine whether the administration of embryonated T...
January 18, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28096863/seroepidemiological-study-of-toxocariasis-in-the-owners-of-domestic-cats-and-dogs-in-mashhad-northeastern-iran
#12
Fariba Berenji, Ali Pouryousef, Abdolmajid Fata, Mahmoud Mahmoudi, Maryam Salehi, Javad Khoshnegah
BACKGROUND: Toxocariasis is the clinical terms applied to infection of human with Ascarid nematodes in the order Ascaridida, named Toxocara canis and T. cati. Because in recent years in Iran many people desire to keep pets (cats and dogs), and lacking of seroepidemiological study of toxocariasis in Mashhad, we decided to determine the seroprevalence of toxocariasis among people who own cats and dogs in comparison with control group. METHODS: A serological study for detection antibodies to Toxocara in two groups (93 cat and dog owners and 93 healthy people as control group) was conducted from Feb 2013 to Dec 2013...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096624/genetic-variability-and-discrimination-of-low-doses-of-toxocara-spp-from-public-areas-soil-inferred-by-loop-mediated-isothermal-amplification-assay-as-a-field-friendly-molecular-tool
#13
Maryam Ozlati, Adel Spotin, Abbas Shahbazi, Mahmoud Mahami-Oskouei, Teimour Hazratian, Mohammad Adibpor, Ehsan Ahmadpour, Afsaneh Dolatkhah, Paria Khoshakhlagh
ABSTRACT: Aim: One of the main diagnostic problems of conventional polymerase chain reaction (PCR) is indiscrimination of low parasitic loads in soil samples. The aim of this study is to determine the genetic diversity and identification of Toxocara spp. from public areas soil inferred by loop-mediated isothermal amplification (LAMP) assay. MATERIALS AND METHODS: A total of 180 soil samples were collected from various streets and public parks of northwest Iran. The DNA of recovered Toxocara eggs were extracted and amplified by PCR and LAMP following ZnSO4 flotation technique...
December 2016: Veterinary World
https://www.readbyqxmd.com/read/28095660/draft-genome-of-toxocara-canis-a-pathogen-responsible-for-visceral-larva-migrans
#14
Jinhwa Kong, Jungim Won, Jeehee Yoon, UnJoo Lee, Jong-Il Kim, Sun Huh
This study aimed at constructing a draft genome of the adult female worm Toxocara canis using next-generation sequencing (NGS) and de novo assembly, as well as to find new genes after annotation using functional genomics tools. Using an NGS machine, we produced DNA read data of T. canis. The de novo assembly of the read data was performed using SOAPdenovo. RNA read data were assembled using Trinity. Structural annotation, homology search, functional annotation, classification of protein domains, and KEGG pathway analysis were carried out...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28043392/influence-of-land-use-and-meteorological-factors-on-the-spatial-distribution-of-toxocara-canis-and-toxocara-cati-eggs-in-soil-in-urban-areas
#15
Xiang Gao, Hongbin Wang, Jianxin Li, Hongyu Qin, Jianhua Xiao
Soil which has been contaminated by Toxocara spp. eggs is considered as one of the main infection sources of Toxocariasis in animals and humans. The present study conducted a detailed investigation into the spatial patterns of Toxocara canis (T. canis) and Toxocara cati (T. cati) eggs in soil in urban area of northeastern Mainland China, and assessed the inter-relationships between meteorological factors, land use and the distribution of the Toxocara spp. eggs. Polymerase chain reaction (PCR) was used for the determination of T...
January 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28043382/protozoan-and-helminth-parasite-fauna-of-free-living-croatian-wild-wolves-canis-lupus-analyzed-by-scat-collection
#16
Carlos Hermosilla, Sonja Kleinertz, Liliana M R Silva, Jörg Hirzmann, Djuro Huber, Josip Kusak, Anja Taubert
The European wolf (Canis lupus) is a large carnivore species present in limited areas of Europe with several small populations still being considered as endangered. Wolves can be infected by a wide range of protozoan and metazoan parasites with some of them affecting free-living wolf health condition. On this account, an epidemiological survey was conducted to analyze the actual parasite fauna in Croatian wild wolves. In total, 400 individual faecal samples were collected during field studies on wolf ecology in the years 2002-2011...
January 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/27956777/helminth-infections-in-domestic-dogs-from-russia
#17
REVIEW
T V Moskvina, A V Ermolenko
Dogs are the hosts for a wide helminth spectrum including tapeworms, flatworms, and nematodes. These parasites affect the dog health and cause morbidity and mortality, especially in young and old animals. Some species, as Toxocara canis, Ancylostoma caninum, Dipylidium caninum, and Echinococcus spp. are well-known zoonotic parasites worldwide, resulting in high public health risks. Poor data about canine helminth species and prevalence are available in Russia, mainly due to the absence of official guidelines for the control of dog parasites...
November 2016: Veterinary World
https://www.readbyqxmd.com/read/27925072/occurrences-of-gastrointestinal-parasites-in-fecal-samples-from-domestic-dogs-in-s%C3%A3-o-paulo-sp-brazil
#18
Juliana Isabel Giuli da Silva Ferreira, Hilda Fátima Jesus Pena, Sérgio Santos Azevedo, Marcelo Bahia Labruna, Solange Maria Gennari
Occurrences of gastrointestinal parasites were assessed in fecal samples from 3,099 dogs in the metropolitan region of São Paulo, SP, that were treated at the Veterinary Hospital of the University of São Paulo Veterinary School. The samples were analyzed using the flotation and centrifugal sedimentation methods. The results were compared with those from previous studies (at different times). The frequency of each parasite was correlated with the dogs' ages, breeds and gender, as well as the occurrences of diarrhea and the use of anthelmintics, by means of the chi-square or Fisher exact test...
October 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27901644/clinical-profile-treatment-and-visual-outcome-of-ocular-toxocara-in-a-tertiary-eye-care-centre
#19
Ekta S Sahu, Bikramjit Pal, Tarun Sharma, Jyotirmay Biswas
PURPOSE: To determine the clinical features, treatment, and visual outcome in ocular toxocariasis. METHODS: A total of 16 cases diagnosed as ocular toxocariasis clinically and/or serologically were analyzed retrospectively. RESULTS: The mean age of the patients was 22.6 years. Cases were categorized into three clinical types with peripheral granuloma (43.7%) as the most common presentation. Of the patients, 10 (62.5%) had positive serum ELISA for T...
November 30, 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27893948/seroprevalence-and-risk-factors-for-toxocara-canis-infection-in-serbia-during-2015
#20
Simona Gabrielli, Suzana Tasić-Otašević, Aleksandra Ignjatović, Maurizio Fraulo, Marija Trenkić-Božinović, Stefan Momčilović, Gabriella Cancrini
We report data on the Toxocara seroprevalence evidenced in 2015 from samples of 40 children and 298 adults of the population living in different areas of Serbia, and on possible association of certain variables with infection. Detection of specific antibodies was performed using an enzyme-linked immunosorbent assay; all ambiguous results and part of the positive and negative sera were further analyzed by confirmatory Western blot test. An overall 23.5% seroprevalence was noticed, which was confirmed in 13.0% of the examined population with no significant difference regarding the age (children = 10...
January 2017: Foodborne Pathogens and Disease
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