Histopatologia e imunoistoquímica do bulbo do olho de equinos (Equus caballus, Linnaeus, 1758) soropositivos ou soronegativos para leptospirose

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Infecção por leptospira em touros (Bos Taurus Indius): comparação da eficiência de dois produtos à base de estreptomicina na eliminação da leptospirúria causado pelo Sorovar Hardjo

Pós-graduação em Medicina Veterinária - FCAV

Análise molecular da proteína HC-Pro (Helper Component-Proteinase) e seu papel na relação patógeno-hospedeiro

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Isolamento viral e diagnóstico molecular de herpevírus canino

Pós-graduação em Medicina Veterinária - FMVZ

Anticorpos contra Leptospira spp. e Brucella spp. em equiídeos da região Sul do Brasil abatidos em matadouro-frigorífico

Pós-graduação em Medicina Veterinária - FCAV

Produção de anticorpo monoclonal reativo com leveduras do gênero candida

The aim of this study was to obtain a reactive monoclonal antibody against Candida albicans. Spleen celIs of BALB/c mice previously immunized withCandida were fused in vitro with mielorna cells Sp2-0Ag14. The resultant hybridcells were kept in culture medium at 5% C02.The suspension growing cells were tested by ELISA to check the antibodies titer. The positive colonies were cloned to achieve the monoclonal antibody and further expanded in mice peritoneum. The antibody produced was purified and isotope. The monoclonal antibody was denominated 76C. The 76C was directed against mannoprotein molecules from Candida cell surface, which has not yet been completely investigated to find outlhe specific nature of epitope. The antibody 76C was analyzed by DOT BLOTagainst different Candida species and there were positives results in 87,5% of the tested samples_ The monoclonal antibody 76C will be a useful tool to investigate oligomannoside epitope from mannan and could be applied in sera diagnosis in invasive candidiasis and in studies of glicidic epitope.

Comparison of lipase production on crambe oil and meal by Fusarium sp (Gibberella fujikuroi complex)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Baccharis dracunculifolia na alimentação de frangos de corte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Freqüência do parvovírus suíno em fetos mumificados, abortados e natimortos detectado através da reação em cadeia pela polimerase (PCR)

Porcine parvovirus (PPV) is associated with reproductive failure and it has been found worldwide, including Brazil. Many diagnostic procedures are used for its detection, for example, immunofluorescence, HA, HI and PCR and this is an important technique because it is very specific and sensitive. In this work, the presence of PPV in fetuses from swine farms with reproductive problems was detected by PCR. All of 170 samples from aborted fetuses, mummies or stillborns were sampled by PCR with primers designed to VP2 region of PPV and c-myc (endogenous control). Only 142 samples (83,53%) were positive for c-myc and among them six samples (4,22%) were positive for PPV which were tested in HA. In this test, erythrocytes suspension 1% was used and three samples (50%) agglutinated but they presented low titer (4). For this work, porcine parvovirus was detected in the samples analyzed by PCR and HA. It is important to emphasize the use of endogenous control when material with elevated degree of autolysis is examined

Overproduction and properties of lipase by wild strain of Burkholderia lata LBBIO-BL02 using chicken fat

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Seroprevalence and seroincidence of Leptospira infection in dogs during a one-year period in an endemic urban area in Southern Brazil

Introduction: Leptospirosis is a zoonosis that affects both humans and animals. Dogs may serve as sentinels and indicators of environmental contamination as well as potential carriers for Leptospira. This study aimed to evaluate the seroprevalence and seroincidence of leptospirosis infection in dogs in an urban low-income community in southern Brazil where human leptospirosis is endemic. Methods: A prospective cohort study was designed that consisted of sampling at recruitment and four consecutive trimestral follow-up sampling trials. All households in the area were visited, and those that owned dogs were invited to participate in the study. The seroprevalence (MAT titers >= 100) of Leptospira infection in dogs was calculated for each visit, the seroincidence (seroconversion or four-fold increase in serogroup-specific MAT titer) density rate was calculated for each follow-up, and a global seroincidence density rate was calculated for the overall period. Results: A total of 378 dogs and 902.7 dog-trimesters were recruited and followed, respectively. The seroprevalence of infection ranged from 9.3% (95% CI; 6.7 - 12.6) to 19% (14.1 - 25.2), the seroincidence density rate of infection ranged from 6% (3.3 - 10.6) to 15.3% (10.8 - 21.2), and the global seroincidence density rate of infection was 11% (9.1 - 13.2) per dog-trimester. Canicola and Icterohaemorraghiae were the most frequent incident serogroups observed in all follow-ups. Conclusions: Follow-ups with mean trimester intervals were incapable of detecting any increase in seroprevalence due to seroincident cases of canine leptospirosis, suggesting that antibody titers may fall within three months. Further studies on incident infections, disease burden or risk factors for incident Leptospira cases should take into account the detectable lifespan of the antibody.

Detecção de co-infecções por Leishmania (l.) chagasi, Trypanosoma evansi, Toxoplasma gondii e Neospora caninum em cães

Co-infections by Leishmania (L.) chagasi, Trypanosoma evansi, Toxoplasma gondii and Neospora caninum in dogs were investigated. Amastigotes forms of Leishmania spp. were detected by cytopathological analysis of lymph nodes in 46,42% (39/84) of dogs. In a male dog, adult, without defined breed, from rural area and positive for Leishmania, were observed flagellated forms of T. evansi in blood smear. By immunofluorescence antibody test, 5,95% (5/84) of dogs were considered reactive to T. gondii, with titer equal to or higher than 1:64, while 3,57% (3/84) were reactive to N. caninum, with titer ≥1:50. Among the animals with visceral leishmaniasis, one showed positive serological response to T. gondii and two for N. caninum. All dogs reactive to N. caninum were from rural area and the predominance of infection by T. gondii was in dogs from urban area. A young male dog from the rural area and seropositive for T. gondii showed Ehrlichia spp. morulae in the cytology and positive reaction for canine distemper virus. Thus, further studies are needed to assess the epidemiology of these infections in canine population, especially with respect to the reservoirs of Trypanosoma spp. in rural areas.