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Adjair Antonio Do Nascimento - One of the best experts on this subject based on the ideXlab platform.
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chaunus ictericus spix 1824 as Paratenic host of the giant kidney worm dioctophyme renale goeze 1782 nematoda enoplida in sao cristovao district tres barras county santa catarina state brazil
2009Co-Authors: Daniela Pedrassani, Estevam Guilherme Lux Hoppe, Jose Hairton Tebaldi, Adjair Antonio Do NascimentoAbstract:Dioctophyme renale larvae have been found in cysts in the gastric wall of 5.17% (3/58) Chaunus ictericus specimens from Sao Cristovao district, Tres Barras municipality, Santa Catarina state, Brazil. However, larvae of this nematode were not found in sympatric Chaunus schneideri. The larvae caused a mild granulomatous reaction. This is the first report of Paratenic Hosts for D. renale in Brazil, and probably is also the first in the Neotropical region.
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Chaunus ictericus (Spix, 1824) as Paratenic host of the giant kidney worm Dioctophyme renale (Goeze, 1782) (Nematoda: Enoplida) in Sao Cristovao district, Tres Barras county, Santa Catarina state, Brazil
2009Co-Authors: Pedrassani Daniela, Lux Hoppe, Estevam Guilherme, Tebaldi, Jose Hairton, Adjair Antonio Do NascimentoAbstract:Dioctophyme renale larvae have been found in cysts in the gastric wall of 5.17% (3/58) Chaunus ictericus specimens from Sao Cristovao district, Tres Barras municipality, Santa Catarina state, Brazil. However, larvae of this nematode were not found in sympatric Chaunus schneideri. The larvae caused a mild granulomatous reaction. This is the first report of Paratenic Hosts for D. renale in Brazil, and probably is also the first in the Neotropical region. (C) 2009 Elsevier B.V. All rights reserved
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Dioctophyme renale: prevalence and risk factors of parasitism in dogs of São Cristóvão district, Três Barras county, Santa Catarina State, Brazil
2024Co-Authors: Daniela Pedrassani, Adjair Antonio Do Nascimento, Marcos Rogério André, Rosangela Zacarias MachadoAbstract:Abstract Dioctophyme renale is a nematode that can be found parasitizing the kidney, peritoneal cavity and, rarely, other organs of canids and mustelids. This disease has high occurrence in the municipality of Três Barras, state of Santa Catarina, thus making this an interesting area to study the epidemiological aspects of infection by D. renale in dogs. Among 197 dogs, 14.2% showed the parasite eggs in urine and 16.4% showed IgG antibodies anti-D. renale in serum samples according to the indirect ELISA method; among seropositive dogs, 15 (37.5%) animals did not show any parasite eggs in their urine. Parasitism was more frequent in females, and there was no finding of interference from age on parasitism. Factors such as water potential and presence of Paratenic Hosts in the studied region were reported by the owners of dogs and may have contributed to the occurrence of parasitism
Daniela Pedrassani - One of the best experts on this subject based on the ideXlab platform.
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chaunus ictericus spix 1824 as Paratenic host of the giant kidney worm dioctophyme renale goeze 1782 nematoda enoplida in sao cristovao district tres barras county santa catarina state brazil
2009Co-Authors: Daniela Pedrassani, Estevam Guilherme Lux Hoppe, Jose Hairton Tebaldi, Adjair Antonio Do NascimentoAbstract:Dioctophyme renale larvae have been found in cysts in the gastric wall of 5.17% (3/58) Chaunus ictericus specimens from Sao Cristovao district, Tres Barras municipality, Santa Catarina state, Brazil. However, larvae of this nematode were not found in sympatric Chaunus schneideri. The larvae caused a mild granulomatous reaction. This is the first report of Paratenic Hosts for D. renale in Brazil, and probably is also the first in the Neotropical region.
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Dioctophyme renale: prevalence and risk factors of parasitism in dogs of São Cristóvão district, Três Barras county, Santa Catarina State, Brazil
2024Co-Authors: Daniela Pedrassani, Adjair Antonio Do Nascimento, Marcos Rogério André, Rosangela Zacarias MachadoAbstract:Abstract Dioctophyme renale is a nematode that can be found parasitizing the kidney, peritoneal cavity and, rarely, other organs of canids and mustelids. This disease has high occurrence in the municipality of Três Barras, state of Santa Catarina, thus making this an interesting area to study the epidemiological aspects of infection by D. renale in dogs. Among 197 dogs, 14.2% showed the parasite eggs in urine and 16.4% showed IgG antibodies anti-D. renale in serum samples according to the indirect ELISA method; among seropositive dogs, 15 (37.5%) animals did not show any parasite eggs in their urine. Parasitism was more frequent in females, and there was no finding of interference from age on parasitism. Factors such as water potential and presence of Paratenic Hosts in the studied region were reported by the owners of dogs and may have contributed to the occurrence of parasitism
Jose Hairton Tebaldi - One of the best experts on this subject based on the ideXlab platform.
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chaunus ictericus spix 1824 as Paratenic host of the giant kidney worm dioctophyme renale goeze 1782 nematoda enoplida in sao cristovao district tres barras county santa catarina state brazil
2009Co-Authors: Daniela Pedrassani, Estevam Guilherme Lux Hoppe, Jose Hairton Tebaldi, Adjair Antonio Do NascimentoAbstract:Dioctophyme renale larvae have been found in cysts in the gastric wall of 5.17% (3/58) Chaunus ictericus specimens from Sao Cristovao district, Tres Barras municipality, Santa Catarina state, Brazil. However, larvae of this nematode were not found in sympatric Chaunus schneideri. The larvae caused a mild granulomatous reaction. This is the first report of Paratenic Hosts for D. renale in Brazil, and probably is also the first in the Neotropical region.
Estevam Guilherme Lux Hoppe - One of the best experts on this subject based on the ideXlab platform.
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chaunus ictericus spix 1824 as Paratenic host of the giant kidney worm dioctophyme renale goeze 1782 nematoda enoplida in sao cristovao district tres barras county santa catarina state brazil
2009Co-Authors: Daniela Pedrassani, Estevam Guilherme Lux Hoppe, Jose Hairton Tebaldi, Adjair Antonio Do NascimentoAbstract:Dioctophyme renale larvae have been found in cysts in the gastric wall of 5.17% (3/58) Chaunus ictericus specimens from Sao Cristovao district, Tres Barras municipality, Santa Catarina state, Brazil. However, larvae of this nematode were not found in sympatric Chaunus schneideri. The larvae caused a mild granulomatous reaction. This is the first report of Paratenic Hosts for D. renale in Brazil, and probably is also the first in the Neotropical region.
Domenico Otranto - One of the best experts on this subject based on the ideXlab platform.
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transmammary transmission of troglostrongylus brevior feline lungworm a lesson from our gardens
2020Co-Authors: Marcos Antonio Bezerrasantos, Francesca Abramo, Domenico Otranto, Emanuele Brianti, Jairo Alfonso Mendozaroldan, Riccardo Paolo Lia, Viviana Domenica Tarallo, Harold Salant, Gad BanethAbstract:Abstract Feline lungworms such as Aerulostrongylus abstrusus and Troglostrongylus brevior are snail-borne pathogens causing respiratory disease in domestic cats. Paratenic Hosts such as rodents and reptiles have also been implicated in the epidemiology of these parasites. Although A. abstrusus has been recognized for a long time as the most prevalent lungworm among cats worldwide, T. brevior is of major concern in kittens. Bearing in mind that disease due to T. brevior occurs mainly in pediatric patients younger than 6 months of age, the diagnosis of this parasite in two kittens presenting severe respiratory disease from the garden of one of the authors inspired us to investigate the potential routes of transmission for T. brevior in domestic cats. Of the three queens (A, B and C) that delivered kittens (n = 8), only cat A was positive for T. brevior, presenting her two kittens severe respiratory clinical signs, which lead to the exitus in one of them, 18 days of age. In addition, three kittens, the offspring of queen B, turned to be positive at the coprological examination after suckling from queen A, whereas those from queen C (that suckled only on their own mother) remained negative. A series of coprological, histological and molecular tests were conducted to confirm the presence of T. brevior in the patients as well as in the other cats cohabiting the same garden. Adult nematodes were retrieved from the trachea and bronchi of the dead kitten (kitten 1A), and larvae at the histology of the lung and liver parenchyma associated with bronco pneumonitis and lymphocytic pericholangitis, respectively. Cornu aspersum (n = 60), Eobania vermiculata (n = 30) snails (intermediate Hosts) as well as lizards and rats (potential Paratenic Hosts) were collected from the same garden and processed through tissue digestion and molecular detection. Troglostrongylus brevior larvae were recovered through tissue digestion from two C. aspersum (3.33 %) and it was confirmed by PCR-sequencing approach, which also detected T. brevior DNA in the liver and lungs of one rat and in the coelomatic cavity of one gecko lizard. During the COVID-19 lockdown, when scientists spent more time at home, we grasp the opportunity to decipher T. brevior biology and ecology starting in a small ecological niche, such as the garden of our house. Data herein presented led us to suggest: i) the transmammary transmission of T. brevior in domestic cats; ii) the role of intermediate and Paratenic Hosts (including reptiles) in the epidemiology of the infection which they transmit; as well as iii) the importance of observational parasitology in studying any event that certainly occurs in small ecological niches, as it could be in our home gardens.
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mice as Paratenic Hosts of aelurostrongylus abstrusus
2019Co-Authors: Vito Colella, Martin Knaus, Olimpia Lai, Carlo Cantile, Francesca Abramo, Steffen Rehbein, Domenico OtrantoAbstract:Several species of nematodes included in the superfamily Metastrongyloidea are recognized agents of parasitic infections in felines. Aelurostrongylus abstrusus is the most prevalent species affecting the respiratory system of domestic cats. The route of infection in cats is supposed to be through ingestion of gastropod intermediate or Paratenic Hosts. However, because gastropods are not the preferred preys of cats, rodents were suggested to play an important role as Paratenic Hosts in the biological cycle of A. abstrusus and in the epidemiology of aelurostrongylosis. Two studies were conducted to document histopathological tissue lesions in mice experimentally infected with A. abstrusus third-stage larvae (L3) (Study 1), and to determine larval counts in their organs (Study 2). Additionally, cats were fed with experimentally infected mice to assess their infectivity. Aelurostrongylus abstrusus L3 were recovered from the liver, spleen, brain, skeletal muscle and gastrointestinal tract tissues by artificial digestion, and heart, spleen and brain tested positive for A. abstrusus at molecular diagnosis. Multifocal encephalitis and meningitis and glial nodules were the most common histopathological lesions found in mice inoculated with A. abstrusus. All cats shed first-stage larvae of A. abstrusus after ingestion of mice inoculated with this nematode. In this study, we provide information on the anatomical localization, histopathological alterations and rate of recovery of A. abstrusus L3 in mice, and confirm their infectivity to cats (definitive Hosts) after feeding on infected mice (Paratenic Hosts). Data presented here add knowledge to further understand the biology of A. abstrusus in mice and underline the importance of mice as Paratenic Hosts of this nematode for the infection of cats.
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Mice as Paratenic Hosts of Aelurostrongylus abstrusus
2019Co-Authors: Vito Colella, Martin Knaus, Olimpia Lai, Carlo Cantile, Francesca Abramo, Domenico OtrantoAbstract:Abstract Background Several species of nematodes included in the superfamily Metastrongyloidea are recognized agents of parasitic infections in felines. Aelurostrongylus abstrusus is the most prevalent species affecting the respiratory system of domestic cats. The route of infection in cats is supposed to be through ingestion of gastropod intermediate or Paratenic Hosts. However, because gastropods are not the preferred preys of cats, rodents were suggested to play an important role as Paratenic Hosts in the biological cycle of A. abstrusus and in the epidemiology of aelurostrongylosis. Results Two studies were conducted to document histopathological tissue lesions in mice experimentally infected with A. abstrusus third-stage larvae (L3) (Study 1), and to determine larval counts in their organs (Study 2). Additionally, cats were fed with experimentally infected mice to assess their infectivity. Aelurostrongylus abstrusus L3 were recovered from the liver, spleen, brain, skeletal muscle and gastrointestinal tract tissues by artificial digestion, and heart, spleen and brain tested positive for A. abstrusus at molecular diagnosis. Multifocal encephalitis and meningitis and glial nodules were the most common histopathological lesions found in mice inoculated with A. abstrusus. All cats shed first-stage larvae of A. abstrusus after ingestion of mice inoculated with this nematode. Conclusions In this study, we provide information on the anatomical localization, histopathological alterations and rate of recovery of A. abstrusus L3 in mice, and confirm their infectivity to cats (definitive Hosts) after feeding on infected mice (Paratenic Hosts). Data presented here add knowledge to further understand the biology of A. abstrusus in mice and underline the importance of mice as Paratenic Hosts of this nematode for the infection of cats
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Evidence for direct transmission of the cat lungworm Troglostrongylus brevior (Strongylida: Crenosomatidae)
2013Co-Authors: Emanuele Brianti, Gabriella Gaglio, Ettore Napoli, Luigi Falsone, Salvatore Giannetto, Maria Stefania Latrofa, Alessio Giannelli, Filipe Dantas-torres, Domenico OtrantoAbstract:SUMMARY Metastrongyloids of cats are emerging pathogens that may cause fatal broncho-pulmonary disease. Infestation of definitive Hosts occurs after ingestion of intermediate or Paratenic Hosts. Among metastrongyloids of cats,Troglostrongylus breviorand Troglostrongylus subcrenatus (Strongylida: Crenosomatidae) have recently been described as agents of severe bronchopulmonary disease. Here, we provide, for the first time, observational evidence suggesting the direct transmission of T. brevior from queen cat to suckling kittens. This new knowledge will have a significant impact on current scientific information of this parasite and shed new light into the biology and epidemiology of metastrongyloid nematodes.
