12 documents found, page 1 of 2
Equine coital exanthema caused by equid alphaherpesvirus 3: a report of an outb...
Silva Filho,Givaldo B.; Bom,Hisadora A.S.C; Fonseca,Silvio M.C.; Costa,Érica A.; Santos,Beatriz S.A.S.; Santos,Renato L.; Souza,Francisco A.L.ABSTRACT: Equine coital exanthema is a venereal infectious disease poorly reported in horses in Brazil and was never described in the northeastern region of the country. This work aims to describe the clinical and pathological aspects of an outbreak of equine coital exanthema caused by equid alphaherpesvirus 3, occurred in a herd of horses at the semiarid region of the State of Rio Grande do Norte. Main clinica...
Histopathology and microscopic morphology of protozoan and metazoan parasites o...
Arenales,Alexandre; Hoppe,Estevam G.L.; Gardiner,Chris; Mol,Juliana P.S.; Werther,Karin; Santos,Renato L.ABSTRACT: This study assessed microscopic morphology of protozoan and metazoan parasites, as well as parasite-associated histopathologic changes in five Brazilian free-ranging armadillos. Three armadillos had intra sarcolemmal cysts of Sarcocystis sp. in skeletal muscles without microscopic changes. One Dasypus novemcinctus was found parasitized with a nematode morphologically compatible with an oxyurid in the ...
Pathogenic potential of Brucella ovis field isolates with different genotypic p...
Carvalho,Thaynara P.; Ribeiro,Noelly Q.; Mol,Juliana P.S.; Costa,Fabíola B.; Eckstein,Camila; Paula,Nayara F.; Paixão,Tatiane A.; Santos,Renato L.ABSTRACT: Brucella ovis causes economic and reproductive losses in sheep herds. The goal of this study was to characterize infection with B. ovis field isolates in a murine model, and to evaluate protection induced by the candidate vaccine strain B. ovis ΔabcBA in mice challenged with these field isolates. B. ovis field strains were able to colonize and cause lesions in the liver and spleen of infected mice. Af...
Meta-analysis of brucellosis vaccinology in natural hosts
Carvalho,Tatiane F.; Haddad,João Paulo A.; Paixão,Tatiane A.; Santos,Renato L.ABSTRACT: Brucellosis is a relevant zoonotic disease for which the most important tool for control is vaccination of susceptible animals. Assessment of vaccine efficacy in natural hosts is based on prevention of abortion and Brucella infection in organs of immunized animals. A meta-analysis of experimental vaccination of Brucella spp. natural hosts was performed, including 45 PubMed and/or Scopus-indexed public...
Acute and chronic toxicity and antimicrobial activity of the extract of Stryphn...
Almeida,Anna C.; Andrade,Viviane A.; Fonseca,Francine S.A.; Macêdo,Auricélio A.; Santos,Renato L.; Colen,Keila G.F.; Martins,Ernane R.ABSTRACT: This study evaluated the antimicrobial activity and acute or chronic toxicity of the extract of Stryphnodendron adstringens. The stem bark dry extract was obtained by static maceration with ethanol. Quantification of tannins was performed by the Folin-Denis method, which indicated a total tannin content of 32.7%. The antimicrobial activity of the dry extract of S. adstringens was evaluated by agar-bas...
Antimicrobial activity and acute and chronic toxicity of the essential oil of L...
Andrade,Viviane A.; Almeida,Anna C.; Souza,Dayane S.; Colen,Keila G.F.; Macêdo,Auricélio A.; Martins,Ernane R.; Fonseca,Francine S.A.; Santos,Renato L.Currently, there is a growing interest in medicinal plants, because of an increased demand for alternate therapies. In this study, the antimicrobial activity and toxicity of the essential oil of Lippia origanoides (L. origanoides) were investigated. The essential oil of L. origanoides was extracted by steam-dragging distillation and its constituents were identified by chromatography coupled with mass spectromet...
Diagnosis of Leishmania infantum infection by Polymerase Chain Reaction in wild...
Lombardi,Mayara C.; Turchetti,Andréia P.; Tinoco,Herlandes P.; Pessanha,Angela T.; Soave,Semiramis A.; Malta,Marcelo C.C.; Paixão,Tatiane A.Visceral leishmaniasis is a chronic infectious disease caused by Leishmania infantum (synonym: Leishmania chagasi) and transmitted by the sandfly Lutzomyia longipalpis in Brazil. It is an endemic zoonosis in several regions of the country, including Belo Horizonte (State of Minas Gerais). In urban areas, the domestic dog is susceptible and considered the most important animal reservoir. However, L. infantum has...
Economic losses due to bovine brucellosis in Brazil
Santos,Renato L.; Martins,Telma M.; Borges,Álan M.; Paixão,Tatiane A.Brucellosis is an important zoonosis of worldwide distribution. Reliable epidemiologic brucellosis data covering approximately 90% of the cattle population in Brazil have been recently published. Therefore, considering the scarcity of information regarding the economic impact of bovine brucellosis in Brazil, the goal of this study was to estimate economic impact of brucellosis on the Brazilian cattle industry. ...
Babesiosis and anaplasmosis in dairy cattle in Northeastern Brazil
Souza,Francisco de A.L.; Braga,Juliana F.V.; Pires,Lidiany V.; Carvalho,Ciro J.S. de; Costa,Érica A.; Ribeiro,Múcio F.B.; Santos,Renato L.The goal of this study was to characterize the epidemiological situation and the factors involved in the prevalence of babesiosis and anaplasmosis in cattle in the dairy basin of Parnaíba, Piauí, Brazil. The study was conducted in 22 farms, and collected blood samples from 202 cattle to study serological, molecular and determination of the packed cell volume (PCV). On the farms were applied surveys involving ep...
Perfil das amostras do sistema nervoso central de bovinos com síndrome neurológ...
Oliveira,Taismara S.; Bull,Valquíria; Rezende,Carolina A.; Furtini,Ronaldo; Costa,Érica A.; Paixão,Tatiane A.; Santos,Renato L.As enfermidades do sistema nervoso central (SNC) são frequentemente relatadas em bovinos no Brasil. Apesar de Minas Gerais ter o segundo maior rebanho bovino do país, há escassez de informações referentes às doenças neurológicas que acometem esses animais. O Laboratório de Saúde Animal do Instituto Mineiro de Agropecuária (LSA/IMA) é o responsável pelo diagnóstico das enfermidades neurológicas dos animais de pr...