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2.
Ars vet ; 37(2): 58-62, 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1463577

RESUMO

Diagnosing Canine Visceral Leishmaniosis is challenging for veterinarians given that its hematological and biochemical abnormalities greatly resemble those of other illnesses of dogs, such as canine ehrlichiosis, which is caused by Ehrlichia canis and is highly prevalent with high pathogenicity. The aim of this study was to determine occurrences of serological positivity for the antigens of Ehrlichia canis and Leishmania infantum and its relationship to globulin concentrations in samples from dogs. Out of 93 samples tested, 12.9% were negative for the antigens of both L. infantum and E. canis; 33.3% were seropositive for both antigens. Discordant results were found from 18.3% that were positive only for L. infantum, while 35.5% were positive only for E. canis. Hyperglobulinemia was observed in 88.2% and the statistical analysis showed that there was a significant relationship between the high levels of globulins and seropositivity for the antigen of E. canis. However, the relationship between positivity for the antigen of L. infantum and hyperglobulinemia, showed that there was no statistically significant relationship between the two laboratory findings. From these results, it can be concluded that concomitant infections occur frequently and that hyperglobulinemia is more closely related to ehrlichiosis than to leishmaniosis, in dogs.


O diagnóstico da leishmaniose canina é um desafio ao Médico Veterinário visto que anormalidades hematológicas e bioquímicas muito se assemelham à outras enfermidades dos cães, como a erliquiose canina, causada pela Ehrlichia canis, muito prevalente e de alta patogenicidade. O objetivo deste estudo foi determinar a positividade sorológica frente aos antígenos de Ehrlichia canis e Leishmania infantum e a sua relação com as concentrações de globulinas em amostras de cães. Das 93 amostras testadas, 12,9% foram negativas frente aos antígenos de E. canis e L. infantum e 33% foram soropositivas. Resultados discordantes foram encontradas em 18,3% positivas apenas para L. infantum, enquanto que 35,5% reagiram apenas frente a E. canis. Hiperglobulinemia foi observada em 88,2% das amostras e a análise estatística mostrou haver relação significante entre a soropositividade frente aos antígenos de E. canis e a hiperglobulinemia, e em contrapartida, a relação entre esse aumento de globulinas e a positividade para L. infantum foi insignificante. Pelos resultados apresentados, pode-se concluir que as infecções concomitantes são frequentes e que a hiperglobulinemia está mais intimamente relacionada a erliquiose quando comparada à leishmaniose em cães.


Assuntos
Animais , Cães , Biomarcadores , Cães/microbiologia , Cães/sangue , Ehrlichiose/diagnóstico , Leishmaniose/diagnóstico , Soro , Ehrlichia canis/patogenicidade , Leishmania infantum/patogenicidade
3.
Ars Vet. ; 37(2): 58-62, 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-31882

RESUMO

Diagnosing Canine Visceral Leishmaniosis is challenging for veterinarians given that its hematological and biochemical abnormalities greatly resemble those of other illnesses of dogs, such as canine ehrlichiosis, which is caused by Ehrlichia canis and is highly prevalent with high pathogenicity. The aim of this study was to determine occurrences of serological positivity for the antigens of Ehrlichia canis and Leishmania infantum and its relationship to globulin concentrations in samples from dogs. Out of 93 samples tested, 12.9% were negative for the antigens of both L. infantum and E. canis; 33.3% were seropositive for both antigens. Discordant results were found from 18.3% that were positive only for L. infantum, while 35.5% were positive only for E. canis. Hyperglobulinemia was observed in 88.2% and the statistical analysis showed that there was a significant relationship between the high levels of globulins and seropositivity for the antigen of E. canis. However, the relationship between positivity for the antigen of L. infantum and hyperglobulinemia, showed that there was no statistically significant relationship between the two laboratory findings. From these results, it can be concluded that concomitant infections occur frequently and that hyperglobulinemia is more closely related to ehrlichiosis than to leishmaniosis, in dogs.(AU)


O diagnóstico da leishmaniose canina é um desafio ao Médico Veterinário visto que anormalidades hematológicas e bioquímicas muito se assemelham à outras enfermidades dos cães, como a erliquiose canina, causada pela Ehrlichia canis, muito prevalente e de alta patogenicidade. O objetivo deste estudo foi determinar a positividade sorológica frente aos antígenos de Ehrlichia canis e Leishmania infantum e a sua relação com as concentrações de globulinas em amostras de cães. Das 93 amostras testadas, 12,9% foram negativas frente aos antígenos de E. canis e L. infantum e 33% foram soropositivas. Resultados discordantes foram encontradas em 18,3% positivas apenas para L. infantum, enquanto que 35,5% reagiram apenas frente a E. canis. Hiperglobulinemia foi observada em 88,2% das amostras e a análise estatística mostrou haver relação significante entre a soropositividade frente aos antígenos de E. canis e a hiperglobulinemia, e em contrapartida, a relação entre esse aumento de globulinas e a positividade para L. infantum foi insignificante. Pelos resultados apresentados, pode-se concluir que as infecções concomitantes são frequentes e que a hiperglobulinemia está mais intimamente relacionada a erliquiose quando comparada à leishmaniose em cães.(AU)


Assuntos
Animais , Cães , Biomarcadores , Soro , Leishmaniose/diagnóstico , Ehrlichiose/diagnóstico , Cães/sangue , Cães/microbiologia , Ehrlichia canis/patogenicidade , Leishmania infantum/patogenicidade
4.
Ars vet ; 37(2): 58-62, 2021.
Artigo em Inglês | VETINDEX | ID: vti-31795

RESUMO

Diagnosing Canine Visceral Leishmaniosis is challenging for veterinarians given that its hematological and biochemical abnormalities greatly resemble those of other illnesses of dogs, such as canine ehrlichiosis, which is caused by Ehrlichia canis and is highly prevalent with high pathogenicity. The aim of this study was to determine occurrences of serological positivity for the antigens of Ehrlichia canis and Leishmania infantum and its relationship to globulin concentrations in samples from dogs. Out of 93 samples tested, 12.9% were negative for the antigens of both L. infantum and E. canis; 33.3% were seropositive for both antigens. Discordant results were found from 18.3% that were positive only for L. infantum, while 35.5% were positive only for E. canis. Hyperglobulinemia was observed in 88.2% and the statistical analysis showed that there was a significant relationship between the high levels of globulins and seropositivity for the antigen of E. canis. However, the relationship between positivity for the antigen of L. infantum and hyperglobulinemia, showed that there was no statistically significant relationship between the two laboratory findings. From these results, it can be concluded that concomitant infections occur frequently and that hyperglobulinemia is more closely related to ehrlichiosis than to leishmaniosis, in dogs.

5.
J Wildl Dis ; 46(3): 1017-23, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20688716

RESUMO

Ehrlichiosis, an emergent tick-borne disease that affects both humans and animals, may represent a threat to the survival and preservation of wild felids in Brazil. There are few studies of ehrlichiosis in wild felids in Brazil, but Ehrlichia spp. are present in domestic cats. Antibodies to Ehrlichia canis have been reported in a puma (Puma concolor). In this study we assessed the presence of these hemoparasites in the blood of Brazilian wild captive felids. Of the 72 animals tested, 5 (7%) were seropositive for the E. canis antigen, and 11 (15%) were positive for E. canis DNA sequences. We also performed sequence alignment to establish the identity of the parasite species infecting these animals using 16S rRNA and omp-1 genes. Sequences based on 16S rRNA were similar to those found in dogs and cats from Thailand, Brazil, China, and Taiwan and with E. canis obtained from a single individual (human) in Venezuela. Ehrlichia sp. sequence from sampled felines based on omp-1 gene was similar to the p28 and p30 multigene family of E. canis. To our knowledge, this is the first study of molecular detection of Ehrlichia sp. in Brazilian wild feline species.


Assuntos
Doenças do Gato/microbiologia , DNA Bacteriano/análise , Ehrlichia , Ehrlichiose/veterinária , Felidae/microbiologia , Animais , Animais Selvagens , Anticorpos Antibacterianos/sangue , Brasil , Gatos , Ehrlichia/imunologia , Ehrlichia/isolamento & purificação , Ehrlichiose/microbiologia , Feminino , Humanos , Masculino , Técnicas de Diagnóstico Molecular/veterinária , Reação em Cadeia da Polimerase/veterinária , Puma
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