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Toxoplasma gondii: Evidence for the transmission by semen in dogs

Arantes, Tiago Pereira ; Lopes, Welber Daniel Zanetti ; Ferreira, Roberta Machado ; Pieroni, Juliana S. Pinto ; Pinto, Vanessa M.R. ; Sakamoto, Claudio A. ; Costa, Alvimar José da

Experimental parasitology, 2009-10, Vol.123 (2), p.190-194 [Periódico revisado por pares]

Amsterdam: Elsevier Inc

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Toxoplasma gondii: Evidence for the transmission by semen in dogs
Autor: Arantes, Tiago Pereira ; Lopes, Welber Daniel Zanetti ; Ferreira, Roberta Machado ; Pieroni, Juliana S. Pinto ; Pinto, Vanessa M.R. ; Sakamoto, Claudio A. ; Costa, Alvimar José da
Assuntos: Animals ; Biological and medical sciences ; Biological Assay - veterinary ; DNA, Protozoan - isolation & purification ; Dog Diseases - parasitology ; Dog Diseases - transmission ; Dogs ; Female ; Fundamental and applied biological sciences. Psychology ; Immunohistochemistry - veterinary ; Insemination, Artificial - veterinary ; Life cycle. Host-agent relationship. Pathogenesis ; Male ; Mice ; PCR ; Polymerase Chain Reaction - veterinary ; Protozoa ; Random Allocation ; Semen ; Semen - parasitology ; Toxoplasma - genetics ; Toxoplasma - isolation & purification ; Toxoplasma gondii ; Toxoplasmosis, Animal - transmission ; Transmission by semen
É parte de: Experimental parasitology, 2009-10, Vol.123 (2), p.190-194
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Ten male dogs were distributed into three experimental groups for infection with Toxoplasma gondii: GI – three dogs inoculated with 2.0 × 10 5 P strais oocysts, GII – three dogs infected with 1.0 × 10 6 RH strain tachyzoites, and GIII – four controls dogs. Several clinical parameters were evaluated. IFAT was performed to detect anti- T. gondii antibodies. Presence of the parasite in semen was evaluated by PCR and bioassay techniques. Tissue parasitism was examined using bioassays and immunohistochemistry in testicle and epididymis fragments collected after orchiectomy. In semen samples collected from these two groups, the presence of T. gondii was verified by bioassays and PCR. T. gondii was detected by immunohistochemistry in tissues (testicle and epididymis fragments) of all six experimentally infected dogs. The T. gondii-positive seminal samples were used in the artificial insemination (AI) of four female dogs free of toxoplasmic infection. Seven days after AI, all of the female dogs presented serologic conversion (IFAT). Fetal reabsorption occurred in two of the dogs, while the others sustained full-term gestation. Several T. gondii cysts were detected in the brains of four offspring. These results suggest that T. gondii can be sexually transmitted in domestic dogs.
Editor: Amsterdam: Elsevier Inc
Idioma: Inglês

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Toxoplasma gondii: Evidence for the transmission by semen in dogs

Arantes, Tiago Pereira ; Lopes, Welber Daniel Zanetti ; Ferreira, Roberta Machado ; Pieroni, Juliana S. Pinto ; Pinto, Vanessa M.R. ; Sakamoto, Claudio A. ; Costa, Alvimar José da

Amsterdam: Elsevier Inc

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