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Oncicola venezuelensis () (Acanthocephala: Oligacanthorhynchidae) in Puma conco...
Palmer,João Pedro Siqueira; Dib,Laís Verdan; Lobão,Lucas Fernandes; Pinheiro,Jessica Lima; Ramos,Raissa Cristina Ferreira; Uchoa,Claudia Maria AntunesAbstract Specimens of Oncicola venezuelensis (Marteau, 1977) were recovered from fragments of intestinal tissue of a female Puma concolar (Linn, 1771) found dead in Petrópolis, Rio de Janeiro in 2017. A total of 140 helminths were recovered. Five males and 5 females of the helminths were analyzed morphologically as well as 50 parasite eggs recovered in intestinal contents. Morphologically, these helminths were ...
Ultrasound monitoring of the uterus and ovaries of dominant and subordinate fem...
Pissinatti,Thalita A.; Ribas,José A.S.; Maróstica,Elizabeth; Pissinatti,Alcides; Ferreira,Ana M.R.ABSTRACT: The yellow-breasted capuchin (Sapajus xanthosternos) and robust tufted capuchin (Sapajus robustus) are endangered species due to destruction of their natural habitat and predatory chase. However, it is still necessary to elucidate some details of their reproductive physiology in order to obtain better indices in the assisted reproduction of these species. This study aimed to evaluate the ovarian cycle...
Negative serosurvey of Toxoplasma gondii antibodies in Golden-headed Lion Tamar...
Molina,Camila Vieira; Krawczak,Felipe da Silva; Bueno,Marina Galvão; Soares,Herbert Sousa; Genari,Solange Maria; Pissinatti,AlcidesAbstract New World Nonhuman Primates are highly susceptible to clinical toxoplasmosis. Serum samples from 126 recently captured Leontopithecus chrysomelas, from an exotic and invasive population, were tested for Toxoplasma gondii antibodies by the modified agglutination test (MAT, cut-off 1:25); all were seronegative. The MAT is highly specific and is not species-specific. This is the first report of T. gondii ...
Comparison of five parasitological techniques for laboratory diagnosis of Balan...
Barbosa,Alynne da Silva; Bastos,Otilio Machado Pereira; Uchôa,Claudia Maria Antunes; Pissinatti,Alcides; Bastos,Augusto César Machado PereiraAbstract Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for de...
Nasal, oral and rectal microbiota of Black lion tamarins (Leontopithecus chryso...
Carvalho,Vania M.; Vanstreels,Ralph E.T.; Paula,Cátia D.; Kolesnikovas,Cristiane K.M.; Ramos,Maria Christina C.; Coutinho,Selene D.Black lion tamarins (Leontopithecus chrysopygus) are endangered callithrichids. Their conservation may require future translocations or reintroductions; however these approaches involve risks of pathogen introduction in the environment and stress-related opportunistic infections in these animals. In order to screen for opportunistic and potential pathogenic bacterial and fungal microbiota, ten free-ranging and ...
Infection by Toxoplasma gondii in Neotropical non-human primates
Pires,Juliana S.; Ribeiro,Carlos T.; Carvalho Filho,Paulo Roberto de; Pissinatti,Alcides; Flausino,Walter; Lopes,Carlos Wilson G.Toxoplasma gondii (Nicolle et Manceaux, 1909) is an obligatory intracellular protozoan parasite of warm animals, including human and non-human primates. Domestic and wild felids are considered definitive hosts. Several authors have already identified lesions in New World primates caused by T. gondii. Nevertheless, little is known about serological studies on those animals. With this reason, New World non-human ...
Cytogenetic study in natural hybrids of Callithrix (Callitrichidae: Primates) i...
Nogueira,Denise M.; Ferreira,Ana Maria R.; Goldschmidt,Beatriz; Pissinatti,Alcides; Carelli,Juliane B.; Verona,Carlos E.In the Atlantic forest of Rio de Janeiro, Callithrix aurita (É. Geoffroy in Humboldt, 1812) is a native species vulnerable to extinction and C. jacchus (Linnaeus, 1758) and C. penicillata (É. Geoffroy, 1812) are invasive species. The major threats to the native species are habitat degradation and hybridization, although there are currently no genetic data about natural hybrids available. Previous studies have r...
Moléstia de Chagas e ecologia profunda: a "luta antivetorial" em questão
Siqueira-Batista,Rodrigo; Gomes,Andréia Patrícia; Rôças,Giselle; Cotta,Rosângela Minardi Mitre; Rubião,Eduardo Cárdenas Nogueira; Pissinatti,AlcidesAs inter-relações entre o homem e o meio ambiente estão entre os principais temas debatidos no contexto atual da saúde pública brasileira. Neste horizonte se inscrevem as questões atinentes à moléstia de Chagas especialmente no âmbito das ações de controle dirigidas aos triatomíneos, a luta antivetorial , a qual permanece, mesmo após quase um século de sua descrição por Carlos Chagas, como uma condição de grand...
Distribution of collagen types I, III, and IV in gastric tissue of marmosets (C...
Mello,Marcela F.V. de; Pissinatti,Alcides; Ferreira,Ana M.R.Extracellular matrix (ECM) components such as fibrillar collagens play a fundamental role in wound repair and have also been studied in association with the gastric ulcer healing process in gastroenterology. Nevertheless, there have been no studies in the literature to date regarding the description and characterization of ECM components, neither in normal nor in injured gastric tissue of primate species. The o...
Scanning electron microscopic study of the tongue in golden-headed lion tamarin...
Burity,Carlos Henrique de F.; Silva,Mirlene R. da; Souza,Andreia M. de; Lancetta,Carla F. F.; Medeiros,Mildred F.; Pissinatti,AlcidesLeontopithecus is the largest genus of Callithrichidae, occupying isolated remnants of the Atlantic Forest in Brazil. The objective of this study was to investigate the ultrastructure of the dorsum of the tongue of golden-headed lion tamarins. Tongues of ten adult lion tamarins kept in captivity at the Center of Primatology of Rio de Janeiro (CPRJ-FEEMA) were analyzed under scanning electron microscopy. The thr...