Seroprevalence of Corynebacterium pseudotuberculosis and Toxoplasma gondii in sheep in semi-arid region of Ceará state / Soroprevalência de Corynebacterium pseudotuberculosis de Toxoplasma gondii em ovinos de região semi-árida do estado do Ceará

The present study was conducted to investigate in 20 extensive sheep farms for the seroprevalence of Corynebacterium pseudotuberculosis (n=402) and Toxoplasma gondii (n=228). Enzyme-linked immunosorbent assay (ELISA) was used for the detection of antibodies to C. pseudotuberculosis/T. gondii. It was observed that C. pseudotuberculosis showed the highest prevalence in the region (34.07%) with statistically significant presence (p 0.05) in ewes. Antibodies to T. gondii was reported in 14.91% of the animals studied. About C. pseudotuberculosis/T. gondii coinfection the categories of rams showed significant (p 0.05) differences, suggesting that this gender could perpetuate the diseases in the flocks. It was concluded that the knowledge about the diseases in the region under study would facilitate the execution of prophylactic measures, especially against the diseases that pose risks to the public health and cause damages to the producer.(AU)

O presente estudo foi conduzido para investigar a soroprevalência em 20 fazendas de criação extensiva de ovinos quanto à presença de anticorpos para Corynebacterium pseudotuberculosis (n=402) e Toxoplasma gondii (n=228). Ensaio de imunoabsorção enzimático (ELISA) foi utilizado para a detecção de anticorpos contra C. pseudotuberculosis/T. gondii. Observou-se que C. pseudotuberculosis apresentou a maior prevalência na região (34,07%), com presença estatisticamente significante (p 0,05) nas categorias de ovelha. Anticorpos contra T. gondii foram encontrados em 14,91% dos animais estudados. Sobre a coinfecção de C. pseudotuberculosis/T. gondii, as categorias carneiro apresentaram diferenças significativas (p 0,05), sugerindo que esse gênero poderia perpetuar as doenças nos rebanhos. Concluiu-se que o conhecimento sobre as doenças na região em estudo facilitaria a execução de medidas profiláticas, principalmente contra as doenças que apresentam riscos à saúde pública e causam danos ao produtor.(AU)

Valores hematológicos e bioquímicos de camundongos imunossuprimidos BALB/c NUDE E C57BL/6 SCID / Haematological and biochemical values of immunosuppressed BALB/c NUDE and C57BL/6 SCID mice

Background: The emergence of the NUDE and SCID immunosuppressed mice lineages generated knowledge on various mechanisms of lymphocyte maturation and human autoimmune diseases. Information on haematological and biochemical parameters of these lineages is still scarce, making it impossible to infer homeostasis by comparing data, or to detect genetic influences on the parameters for these species. Haematological and biochemical tests were carried out on Balb/c NUDE and C57BL/6 SCID mice of both sexes, aiming to analyse the presence of genetic influence on possible variations of such parameters and to verify reference values for both lineages.Materials, Methods & Results: One hundred and forty mice (Mus musculus) of the Balb/C NUDE and C57BL/6 SCID lineages were used in the present study. The animals were previously anesthetized, the blood collection procedure was performed by cardiac puncture and the samples were collected in the presence of heparin and intended for haematological and biochemical evaluation, under standardized conditions. The haematological evaluation consisted of red blood cell count, leukocyte counts, platelet counts, haematocrit, haemoglobin concentration, mean corpuscular volume (MCV), and mean corpuscular haemoglobin concentration (MCHC). The quantified biochemical parameters were: urea, creatinine, alanine aminotransaminase (ALT), aspartate aminotransaminase (AST) and alkaline phosphatase (ALP). While analysing the obtained data, it was possible to observe that only females presented divergences (P < 0.05) in the red blood cell series, in haemoglobin and in mean haemoglobin concentration (MCH). Regarding the analysis of the white blood cell series, females only presented differences (P < 0.05) in the leukocyte count. For males, there were variations (P < 0.05) in the counts of leukocytes, eosinophils, lymphocytes and neutrophils.[...]

Valores hematológicos e bioquímicos de camundongos imunossuprimidos BALB/c NUDE E C57BL/6 SCID / Haematological and biochemical values of immunosuppressed BALB/c NUDE and C57BL/6 SCID mice

Background: The emergence of the NUDE and SCID immunosuppressed mice lineages generated knowledge on various mechanisms of lymphocyte maturation and human autoimmune diseases. Information on haematological and biochemical parameters of these lineages is still scarce, making it impossible to infer homeostasis by comparing data, or to detect genetic influences on the parameters for these species. Haematological and biochemical tests were carried out on Balb/c NUDE and C57BL/6 SCID mice of both sexes, aiming to analyse the presence of genetic influence on possible variations of such parameters and to verify reference values for both lineages.Materials, Methods & Results: One hundred and forty mice (Mus musculus) of the Balb/C NUDE and C57BL/6 SCID lineages were used in the present study. The animals were previously anesthetized, the blood collection procedure was performed by cardiac puncture and the samples were collected in the presence of heparin and intended for haematological and biochemical evaluation, under standardized conditions. The haematological evaluation consisted of red blood cell count, leukocyte counts, platelet counts, haematocrit, haemoglobin concentration, mean corpuscular volume (MCV), and mean corpuscular haemoglobin concentration (MCHC). The quantified biochemical parameters were: urea, creatinine, alanine aminotransaminase (ALT), aspartate aminotransaminase (AST) and alkaline phosphatase (ALP). While analysing the obtained data, it was possible to observe that only females presented divergences (P < 0.05) in the red blood cell series, in haemoglobin and in mean haemoglobin concentration (MCH). Regarding the analysis of the white blood cell series, females only presented differences (P < 0.05) in the leukocyte count. For males, there were variations (P < 0.05) in the counts of leukocytes, eosinophils, lymphocytes and neutrophils.[...](AU)

Perfil hematológico e bioquímico de camundongos da linhagem Balb-c / Haematological and biochemical profile of Balb-c Mice

Background: Animal models are widely used in scientific research because of the ability to generate information from an organism like everything under a given experimental condition. Hematological and biochemical tests in laboratory animals are essential for the validation of several scientific studies. In addition, it standardizes physiological values for these animals according to their sex, age, lineage, environment, and nutritional status. The present work aims to establish reference values for biochemical and hematological standards in Balb/c mice, for males and females.Materials, Methods & Results: A total of 50 male and female mice were used at reproductive age. The procedures for collecting, processing, and analyzing the samples were standardized. The collected blood samples were immediately transferred to eppendorf tubes containing heparin, and intended for hematological and biochemical evaluation. The hematological evaluation consisted of Red blood cell count (RBC), Leukocyte counts (WBC), Platelet counts (PLT), Hematocrit (HCT), Hemoglobin concentration (HGB), Mean corpuscular volume (MCV), and Mean corpuscular hemoglobin concentration (MCHC). Already the quantified biochemical parameters were: urea, creatinine, alanina aminotransaminase (ALT), aspartato aminotransaminase (AST) and fosfatase alcalina (FAL). The differential leukocyte count was also performed. Hematological results obtained for males and females were: 9.19 ± 3.35 (106/mm³) and 7.3 ± 2.01(106/mm³) of RBC; 35.8 ± 6.7% and 38.44 ± 3.93% of HCT; 11.51 ± 2.17 g/dL and 11.85 ± 1.56 g/dL of HGB; 45.83 ± 15.03 fL and 60.26 ± 18.25 fL of VCM; 31.80 ± 1.15% and 31.88 ± 0.99% of MCHC; and, 5380 ± 1994.21(10³/mm³) and 3564 ± 1071(10³/mm³) of WBC. The platelet counts were 878.92 ± 84.19 and 678.28 ± 227.21, for males and females respectively.[...]

Perfil hematológico e bioquímico de camundongos da linhagem Balb-c / Haematological and biochemical profile of Balb-c Mice

Background: Animal models are widely used in scientific research because of the ability to generate information from an organism like everything under a given experimental condition. Hematological and biochemical tests in laboratory animals are essential for the validation of several scientific studies. In addition, it standardizes physiological values for these animals according to their sex, age, lineage, environment, and nutritional status. The present work aims to establish reference values for biochemical and hematological standards in Balb/c mice, for males and females.Materials, Methods & Results: A total of 50 male and female mice were used at reproductive age. The procedures for collecting, processing, and analyzing the samples were standardized. The collected blood samples were immediately transferred to eppendorf tubes containing heparin, and intended for hematological and biochemical evaluation. The hematological evaluation consisted of Red blood cell count (RBC), Leukocyte counts (WBC), Platelet counts (PLT), Hematocrit (HCT), Hemoglobin concentration (HGB), Mean corpuscular volume (MCV), and Mean corpuscular hemoglobin concentration (MCHC). Already the quantified biochemical parameters were: urea, creatinine, alanina aminotransaminase (ALT), aspartato aminotransaminase (AST) and fosfatase alcalina (FAL). The differential leukocyte count was also performed. Hematological results obtained for males and females were: 9.19 ± 3.35 (106/mm³) and 7.3 ± 2.01(106/mm³) of RBC; 35.8 ± 6.7% and 38.44 ± 3.93% of HCT; 11.51 ± 2.17 g/dL and 11.85 ± 1.56 g/dL of HGB; 45.83 ± 15.03 fL and 60.26 ± 18.25 fL of VCM; 31.80 ± 1.15% and 31.88 ± 0.99% of MCHC; and, 5380 ± 1994.21(10³/mm³) and 3564 ± 1071(10³/mm³) of WBC. The platelet counts were 878.92 ± 84.19 and 678.28 ± 227.21, for males and females respectively.[...](AU)

Co-infection with arthropod-borne pathogens in domestic cats / Co-infecção por patógenos transmitidos por artrópodes em gatos domésticos

The role of several feline vector-borne pathogens (FVBP) as a cause of disease in cats has not been clearly determined. In fact, with the exception of Bartonella spp. and hemoplasmas, FVBP in cats has not been clearly determined in Brazil yet. The present study aimed at identifying, by using molecular methods, the presence of FVBP in three cats showing non-specific clinical signs and inclusions suggestive of hemoparasites in blood smears. Cytauxzoon felis, Candidatus Mycoplasma haemominutum, Ehrlichia sp. closely related to Ehrlichia canis, and Anaplasma sp. closely related to Anaplasma phagocytophilum were detected in blood samples from two out of three sampled cats. Both cats positive for multiple FVBP did not show hematological and biochemical abnormalities. The present work emphasizes the need for molecular confirmation of co-infection by multiple FVBP in cats presenting non-specific clinical signs and inclusions resembling hemoparasites in blood smears.(AU)

O papel de diversos patógenos felinos transmitidos por vetores (PFTV) como causa de enfermidades em gatos não tem sido claramente determinado. De fato, com exceção de Bartonella spp. e hemoplasmas, PFTV têm sido bem menos estudados no Brasil. O presente estudo objetivou investigar, utilizando métodos moleculares, a presença de PFTV em três gatos apresentando sinais clínicos inespecíficos e inclusões sugestivas de hemoparasitas em esfregaços sanguíneos. Cytauxzoon felis, Candidatus Mycoplasma haemominutum, Ehrlichia sp. filogeneticamente relacionada a Ehrlichia canis, e Anaplasma sp. filogeneticamente relacionado a Anaplasma phagocytophilum foram detectados em amostras de sangue de dois dos três gatos amostrados. Os dois gatos positivos para múltiplos PFTV não apresentaram alterações hematológicas e bioquímicas. O presente trabalho enfatiza a necessidade de confirmação molecular da infecção por múltiplos PFTV em gatos apresentando sinais clínicos inespecíficos e inclusões sugestivas de hemoparasitas em esfregaços sanguíneos.(AU)

Co-infection with arthropod-borne pathogens in domestic cats / Co-infecção por patógenos transmitidos por artrópodes em gatos domésticos

The role of several feline vector-borne pathogens (FVBP) as a cause of disease in cats has not been clearly determined. In fact, with the exception of Bartonella spp. and hemoplasmas, FVBP in cats has not been clearly determined in Brazil yet. The present study aimed at identifying, by using molecular methods, the presence of FVBP in three cats showing non-specific clinical signs and inclusions suggestive of hemoparasites in blood smears. Cytauxzoon felis, Candidatus Mycoplasma haemominutum, Ehrlichia sp. closely related to Ehrlichia canis, and Anaplasma sp. closely related to Anaplasma phagocytophilum were detected in blood samples from two out of three sampled cats. Both cats positive for multiple FVBP did not show hematological and biochemical abnormalities. The present work emphasizes the need for molecular confirmation of co-infection by multiple FVBP in cats presenting non-specific clinical signs and inclusions resembling hemoparasites in blood smears.(AU)

O papel de diversos patógenos felinos transmitidos por vetores (PFTV) como causa de enfermidades em gatos não tem sido claramente determinado. De fato, com exceção de Bartonella spp. e hemoplasmas, PFTV têm sido bem menos estudados no Brasil. O presente estudo objetivou investigar, utilizando métodos moleculares, a presença de PFTV em três gatos apresentando sinais clínicos inespecíficos e inclusões sugestivas de hemoparasitas em esfregaços sanguíneos. Cytauxzoon felis, Candidatus Mycoplasma haemominutum, Ehrlichia sp. filogeneticamente relacionada a Ehrlichia canis, e Anaplasma sp. filogeneticamente relacionado a Anaplasma phagocytophilum foram detectados em amostras de sangue de dois dos três gatos amostrados. Os dois gatos positivos para múltiplos PFTV não apresentaram alterações hematológicas e bioquímicas. O presente trabalho enfatiza a necessidade de confirmação molecular da infecção por múltiplos PFTV em gatos apresentando sinais clínicos inespecíficos e inclusões sugestivas de hemoparasitas em esfregaços sanguíneos.(AU)