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Pesquisa : D12.776.124.486.485.114.107 [Categoria DeCS]
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Id: lil-763282
Autor: Soares, Catharina de Paula Oliveira Cavalcanti; Teles, José Andreey Almeida; Santos, Aldenir Feitosa dos; Silva, Stemberg Oliveira Firmino; Cruz, Maria Vilma Rocha Andrade; Silva-Júnior, Francisco Feliciano da.
Título: Prevalence of Brucella spp in humans / Prevalência da Brucella spp em humanos / Prevalencia de la Brucella spp en humanos
Fonte: Rev. latinoam. enferm;23(5):919-926, Sept.-Oct. 2015. tab, graf.
Idioma: en.
Resumo: Objective: to determine the seroprevalence of Brucella spp in humans.Method: this is an observational study, developed with 455 individuals between 18 and 64 years old, who use the Estratégia de Saúde da Família (Brazil's family health strategy). The serum samples of volunteers underwent buffered acid antigen tests, such as screening, agar gel immunodiffusion and slow seroagglutination test in tubes and 2-Mercaptoethanol.Results: among the samples, 1.98% has responded to buffered-acid antigen, 2.85% to agar gel immunodiffusion test and 1.54% to the slow seroagglutination tests on tubes/2-Mercaptoethanol. The prevalence of Brucella spp was 4.4%, represented by the last two tests.Conclusion: the results of this research suggest that the studied population is exposed to Brucella spp infection.

Objetivo: determinar a soroprevalência da Brucella spp em humanos.Método: trata-se de estudo observacional, desenvolvido com 455 indivíduos entre 18 e 64 anos, selecionados, que utilizavam a estratégia de saúde da família. As amostras de soro dos voluntários foram submetidas aos testes de antígeno acidificado tamponado, como triagem, imunodifusão em gel de ágar e aos testes de soroaglutinação lenta em tubos e 2-mercaptoetanol.Resultados: dentre as amostras, 1,98% reagiram ao antígeno acidificado tamponado, 2,85% à imunodifusão em gel ágar e 1,54% aos testes de soroaglutinação lenta em tubos/2-mercaptoetanol. Sendo a prevalência da Brucella spp de 4,4%, representada pelos dois últimos testes.Conclusão: os resultados desta pesquisa sugerem que a população estudada encontra-se exposta à infecção por Brucella spp.

Objetivo: determinar la seroprevalencia de la Brucella spp en humanos.Método: se trata de un estudio observacional, desarrollado con 455 individuos seleccionados con edades entre 18 y 64 años, que utilizaban la Estrategia de Salud de la Familia. Las muestras de suero de los voluntarios fueron sometidas a las pruebas de antígeno acidificado tamponado, como tamizaje, inmunodifusión en gel de agar y a las pruebas de seroaglutinación lenta en tubos y 2-mercaptoetanol.Resultados: entre las muestras; el 1,98% reaccionó al antígeno acidificado tamponado, el 2,85% reaccionó a la inmunodifusión en gel agar; y el 1,54%, a las pruebas de seroaglutinación lenta en tubos/2-mercaptoetanol. La prevalencia de laBrucella spp representada por las dos últimas pruebas fue del 4,4%.Conclusión: los resultados de esta investigación sugieren que la población que ha sido estudiada se encuentra expuesta a la infección por Brucellaspp.
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Id: biblio-889239
Autor: Wang, Jiashun; Li, Yi; Chen, Jia; Hua, Deping; Li, Yi; Deng, Hui; Li, Ying; Liang, Zhixuan; Huang, Jinhai.
Título: Rapid detection of food-borne Salmonella contamination using IMBs-qPCR method based on pagC gene
Fonte: Braz. j. microbiol;49(2):320-328, Apr.-June 2018. tab, graf.
Idioma: en.
Projeto: National Natural Science Foundation of China; . Tianjin Science and Technology.
Resumo: Abstract Detection of Salmonella is very important to minimize the food safety risk. In this study, the recombinant PagC protein and PagC antibody were prepared and coupled with immunomagnetic beads (IMBs) to capture Salmonella cells from pork and milk samples. And then the SYBR Green qualitative PCR was developed to detect the pathogenic Salmonella. The results showed that the PagC polyclonal antiserum is of good specificity and the capture rate of 0.1 mg IMBs for Salmonella tended to be stable at the range of 70-74% corresponding to the concentrations between 101 and 104 CFU/mL. The method developed demonstrated high specificity for the positive Salmonella samples when compared to non-specific DNA samples, such as Escherichia coli, Staphylococcus aureus, Yersinia enterocolitica, and Yersinia pseudotuberculosis. The limit of detection of this assay was 18 CFU/mL. Detection and quantitative enumeration of Salmonella in samples of pork or milk shows good recoveries of 54.34% and 52.07%. In conclusion, the polyclonal antibody of recombinant PagC protein is effective to capture Salmonella from detected samples. The developed pagC antibody IMBs-qPCR method showed efficiency, sensitivity and specificity for 30 Salmonella detection, enabling detection within 10 h, which is a promising rapid method to detect Salmonella in emergency.
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Id: biblio-889161
Autor: Mirhosseini, Seyed Ali; Fooladi, Abbas Ali Imani; Amani, Jafar; Sedighian, Hamid.
Título: Production of recombinant flagellin to develop ELISA-based detection of Salmonella Enteritidis
Fonte: Braz. j. microbiol;48(4):774-781, Oct.-Dec. 2017. tab, graf.
Idioma: en.
Resumo: ABSTRACT Food-borne diseases, caused by the pathogenic bacteria, are highly prevalent in the world. Salmonella is one of the most important bacterial genera responsible for this. Salmonella Enteritidis (SE) is one of the non-typhoid Salmonellae that can be transmitted to human from poultry products, water, and contaminated food. In recent years, new and rapid detection methods such as enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) have been developed. In this study, recombinant FliC (rFliC) was produced to be used as an antigen. The immunization was conducted in mice with the purified recombinant FliC (rFliC). The mice were subcutaneously immunized with rFliC and elicited significant rFliC specific serum IgG antibodies. An indirect ELISA system was established for the detection of Salmonella Enteritidis. Our results confirmed that the recombinant flagellin can be one of the excellent indicators for the detection of Salmonella Enteritidis.
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Id: biblio-889131
Autor: Oliveira, Marluce Aparecida Assunção; Leal, Élida Aparecida; Correia, Max Assunção; Serufo Filho, José Carlos; Dias, Ricardo Souza; Serufo, José Carlos.
Título: Human leptospirosis: occurrence of serovars of Leptospira spp. in the state of Minas Gerais, Brazil, from 2008 to 2012
Fonte: Braz. j. microbiol;48(3):483-488, July-Sept. 2017. tab, graf.
Idioma: en.
Resumo: Abstract Background: Leptospirosis is an infectious and acute disease caused by Leptospira spp. that have high epidemic potential. This study verified the main Leptospira spp. serovars detected by MAT from serum of patients with suspicion of leptospirosis from 2008 to 2012 in Minas Gerais State. Methods: The laboratory received sera from 4654 patients. All serum were screened by IgM-ELISA according to the manufacturer's instructions. Each sample reactive or indeterminate were tested against twenty-four serovars of Leptospira by MAT. Results: In this study, 597 patients were classified as reactive on MAT. Only 301 patients were confirmed by laboratory test. It was not possible confirmation by laboratory diagnosis of 296 patients. Among the samples classified as reactive on MAT, 273 patients exhibited titers bigger than 800 for one or more serovars; seroconversion was detected in 28 cases. Percentage of 85.1% of the samples reactive on MAT corresponded to males, 39.4% corresponded to patients aged between 20 and 39 years old. The most common serovars found were Icterohaemorrhagiae, Andamana, Patoc, Tarassovi, Copenhageni, Hardjo and Australis. Concerning the samples that exhibited titers bigger than 800, serovar Icterohaemorrhagiae was also the most common, followed by Copenhageni, Andamana, Patoc, Tarassovi, Grippotyphosa and Canicola. In this study, 40% of the cases occurred to the metropolitan area, state capital and 34 neighboring towns. Conclusion: Our results show the possibly spreading serovars in Minas Gerais State and contribute to knowledge of human leptospirosis, aiming at improving the prevention, control of the disease, as well as the treatment of infected patients.
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Id: biblio-889077
Autor: dos Santos, DP; Muniz, IPR; Queiroz, AF; Pereira, IS; Souza, MPA; Lima, LJ; Sousa, LRO; Ribeiro, IS; Galantini, MPL; Marques, LM; Figueiredo, TB; da Silva, RAA.
Título: Individual variation is the key to the development of a vaccine against Staphylococcus aureus: a comparative study between mice lineages
Fonte: Braz. j. med. biol. res = Rev. bras. pesqui. méd. biol;51(5):e6773, 2018. graf.
Idioma: en.
Resumo: Bacterial infections occur worldwide and are a major public health problem. Among pathogens, Staphylococcus aureus is the main causative agent of bacterial diseases in the world. This study aimed to evaluate which components of the immune system could act protectively against a S. aureus infection in intradermally immunized mice. C57BL/6 and A/j mice were immunized intradermally with S. aureus inactivated by heat and then challenged with viable strains in an air pouch model. At 6, 12, and 24 h after the challenge, euthanasia was performed, and the cellular profile of the inflammatory infiltrate, cytokines, and the bacterial load were evaluated in the air pouch lavages. Immunized mice demonstrated that the intradermal immunization with S. aureus promoted protection in C57BL/6 mice by reducing the bacterial, which was correlated with increased serum concentration of IgG antibodies (IgG1 and IgG2a) against S. aureus. The increase in IgG2a antibody levels was correlated with a decrease of bacterial load in intradermally immunized C57BL/6 mice, along with production of IL-17A at the inflammation site, as well as IgG1consumption. Similar results were not found in the A/j lineage. In conclusion, a vaccine against S. aureus should focus more on the individual characteristics of the host because it is a determinant factor for the success of the immunization.
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Id: biblio-842001
Autor: Ricardo, Paloma; Oliveira, Luís G; Baraldi, Thaís G; Mechler, Marina L; Almeida, Henrique M. S; Silva, Glaucenyra C. P. da; Gatto, Igor R. H; Mathias, Luis A.
Título: Occurrence of anti-Brucella antibodies in intensive pig farming and in non-technified pig herds / Ocorrência de anticorpos anti-Brucella em suínos de granjas comercias e de criações de subsistência
Fonte: Pesqui. vet. bras = Braz. j. vet. res;36(10):930-934, out. 2016. tab, mapas.
Idioma: en.
Resumo: The aim of this study was to determine the occurrence of antibodies anti-Brucella in 1,940 swine blood samples. Out of the 1,940 sera samples, 1,594 were from 30 intensive pig farming from seven different states, collected during the slaughtering of animals, and 346 samples from 56 non-technified (subsistence) pig herds from Jaboticabal region, São Paulo State, Brazil. All samples were tested by Buffered Plate Acidified Antigen (BPAA) and considered positive in case of agglutination. If positive, the samples were tested by Complement Fixation Reaction (CFR) as a confirmatory test. Out of the 1,594, two were positive for BPAA but negative for CFR, so the occurrence was 0%. Among the 346 samples, two were positive for BPAA but only one was positive in the confirmatory test, whith a titer of 1:8. Thus, the occurrence was 0.29%, an important result to demonstrate the improvement of the sanitary status of Brazilian non-technified pig herds, despite the low conditions of production.(AU)

O presente estudo foi realizado com o objetivo de se determinar a ocorrência de anticorpos anti-Brucella spp. em 1.940 amostras de sangue de suínos, das quais 1.594 amostras eram de 30 granjas comerciais, de sete diferentes Estados, coletadas durante o abate dos animais, e 346 amostras de 56 criações de subsistência da região de Jaboticabal, Estado de São Paulo, Brasil. Todas as amostras foram submetidas ao teste do Antígeno Acidificado Tamponado (AAT) e consideradas positivas caso ocorresse aglutinação. Quando positivas, as amostras eram submetidas ao teste de Reação de Fixação de Complemento (RFC) como teste confirmatório. Dentre as 1.594 amostras de suínos de granjas comerciais, duas se mostraram sensíveis ao AAT, porém, quando foram submetidas à RFC, ambas apresentaram reação negativa, levando a uma porcentagem de ocorrência de 0%. Já entre as 346 amostras de criações de subsistência, duas foram positivas ao AAT, sendo que apenas uma apresentou reação positiva no teste confirmatório, cujo título foi de 1:8. Desta forma, a ocorrência foi de 0,29%, resultado importante para demonstrar a melhoria do status sanitário dos rebanhos de subsistência brasileiros, apesar das condições precárias em que vivem.(AU)
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Id: biblio-840027
Autor: Nadaf, Maria Isabel Valdomir; Lima, Laila; Stranieri, Inês; Takano, Olga Akiko; Carneiro-Sampaio, Magda; Palmeira, Patricia.
Título: Passive acquisition of anti-Staphylococcus aureus antibodies by newborns via transplacental transfer and breastfeeding, regardless of maternal colonization
Fonte: Clinics;71(12):687-694, Dec. 2016. tab, graf.
Idioma: en.
Projeto: AUX-PE-DINTER/NF.
Resumo: OBJECTIVE: To investigate the transmission of anti-Staphylococcus aureus (Sa) IgG, IgG1 and IgG2 via placental transfer and the transfer of IgA via the colostrum according to maternal Sa carrier status at delivery. METHODS: We evaluated anti-Sa IgG, IgG1 and IgG2 in maternal and cord sera and IgA in colostrum from a case (n=49, Sa+) and a control group (n=98, Sa-). RESULTS: Of the 250 parturients analyzed for this study, 49 were nasally colonized with S. aureus (prevalence of 19.6%). Ninety-eight non-colonized subjects were selected for the control group. The anti-Sa IgG, IgG1 and IgG2 levels and the IgG avidity indexes in the maternal and cord sera did not differ between the groups, with a low transfer ratio of anti-Sa IgG to the newborns in both groups. The anti-Sa IgG2 titers were significantly higher than the IgG1 titers in the maternal and cord sera. Inversely, the transfer ratios were higher for anti-Sa IgG1 compared with IgG2; however, no differences between the groups were detected. The Sa-specific IgA levels and avidity indexes in the colostrum were equivalent between groups. CONCLUSIONS: Maternal Sa nasal colonization at delivery is not associated with higher antibody levels in the mother or newborns. The high titers of anti-Sa IgG2 found in the cord serum indicate a greater reactivity with non-protein antigens, which may further contribute to the susceptibility to staphylococcal infections at birth. The presence of IgA in the colostrum with avidity to S. aureus reinforces the importance of breastfeeding shortly after birth.
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Id: biblio-839291
Autor: Gioia, CAC; Lemos, APS; Gorla, MCO; Mendoza-Sassi, R; Figueredo, BS; Ballester, T; Von Groll, A; Wedig, B; Ethur, NV; Bragança, L; Silva, PEA; Milagres, LG.
Título: Seroprevalence of bactericidal antibodies against serogroup B and C Meningococci in a University Hospital
Fonte: Braz. j. med. biol. res = Rev. bras. pesqui. méd. biol;50(5):e5590, 2017. tab, graf.
Idioma: en.
Resumo: Meningococcus serogroup B (MenB), clonal complex 32 (cc 32), was the Brazilian epidemic strain of meningococcal disease (MD) in the 1990’s. Currently, meningococcus serogroup C (MenC), cc 103, is responsible for most of the cases of the disease in Brazil. The aim of this study was to investigate the seroprevalence of bactericidal antibody (SBA) against representative epidemic strains of MenC, (N753/00 strain, C:23:P1.22,14-6, cc103) and MenB, (Cu385/83 strain, B:4,7:P1.15,19, cc32) in students and employees of a university hospital in the State of Rio Grande do Sul (RS, Brazil). A second MenC strain (N79/96, C:2b:P1.5-2,10, cc 8) was used as a prototype strain of Rio de Janeiro’s outbreak that occurred in the 1990’s. Our previous study showed a 9% rate of asymptomatic carriers in these same individuals. A second goal was to compare the SBA prevalence in meningococcal carriers and non-carriers. Fifty-nine percent of the studied population showed protective levels of SBA titers (log2≥2) against at least one of the three strains. About 40% of the individuals had protective levels of SBA against N753/00 and Cu385/83 strains. Nonetheless, only 22% of the individuals showed protective levels against N79/96 strain. Significantly higher antibody levels were seen in carriers compared to non-carriers (P≤0.009). This study showed that, similar to other States in Brazil, a MenC (23:P1.22,14-6, cc103) strain with epidemic potential is circulating in this hospital. Close control by the Epidemiological Surveillance Agency of RS of the number of cases of MD caused by MenC strains in the State is recommended to prevent a new disease outbreak.
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Id: lil-787489
Autor: Ranzani, Otavio Tavares; Forte, Daniel Neves; Forte, Antonio Carlos; Mimica, Igor; Forte, Wilma Carvalho Neves.
Título: The value of antibody-coated bacteria in tracheal aspirates for the diagnosis of ventilator-associated pneumonia: a case-control study / Utilidade da avaliação de bactérias revestidas por anticorpos em aspirados traqueais para o diagnóstico de pneumonia associada à ventilação mecânica: um estudo caso-controle
Fonte: J. bras. pneumol;42(3):203-210tab, graf.
Idioma: en.
Resumo: ABSTRACT Objective: Ventilator-associated pneumonia (VAP) is the leading type of hospital-acquired infection in ICU patients. The diagnosis of VAP is challenging, mostly due to limitations of the diagnostic methods available. The aim of this study was to determine whether antibody-coated bacteria (ACB) evaluation can improve the specificity of endotracheal aspirate (EA) culture in VAP diagnosis. Methods: We conducted a diagnostic case-control study, enrolling 45 patients undergoing mechanical ventilation. Samples of EA were obtained from patients with and without VAP (cases and controls, respectively), and we assessed the number of bacteria coated with FITC-conjugated monoclonal antibodies (IgA, IgM, or IgG) or an FITC-conjugated polyvalent antibody. Using immunofluorescence microscopy, we determined the proportion of ACB among a fixed number of 80 bacteria. Results: The median proportions of ACB were significantly higher among the cases (n = 22) than among the controls (n = 23)-IgA (60.6% vs. 22.5%), IgM (42.5% vs. 12.5%), IgG (50.6% vs. 17.5%), and polyvalent (75.6% vs. 33.8%)-p < 0.001 for all. The accuracy of the best cut-off points for VAP diagnosis regarding monoclonal and polyvalent ACBs was greater than 95.0% and 93.3%, respectively. Conclusions: The numbers of ACB in EA samples were higher among cases than among controls. Our findings indicate that evaluating ACB in EA is a promising tool to improve the specificity of VAP diagnosis. The technique could be cost-effective and therefore useful in low-resource settings, with the advantages of minimizing false-positive results and avoiding overtreatment.

RESUMO Objetivo: A pneumonia associada à ventilação mecânica (PAVM) é o principal tipo de infecção adquirida no ambiente hospitalar em pacientes em UTIs. O diagnóstico de PAVM é desafiador, principalmente devido a limitações dos métodos diagnósticos disponíveis. O objetivo deste estudo foi determinar se a avaliação de bactérias revestidas por anticorpos (BRA) pode melhorar a especificidade de culturas de aspirado traqueal (AT) no diagnóstico de PAVM. Métodos: Estudo diagnóstico caso-controle envolvendo 45 pacientes sob ventilação mecânica. Amostras de AT foram obtidas de pacientes com e sem PAVM (casos e controles, respectivamente), e verificamos o número de bactérias revestidas com anticorpos monoclonais conjugados com FITC (IgA, IgM ou IgG) ou anticorpo polivalente conjugado com FITC. Utilizando microscopia de imunofluorescência, foi determinada a proporção de BRA em um número fixo de 80 bactérias. Resultados: A mediana das proporções de BRA foi significativamente maior nos casos (n = 22) que nos controles (n = 23) - IgA (60,6% vs. 22,5%), IgM (42,5% vs. 12,5%), IgG (50,6% vs. 17,5%) e polivalente (75,6% vs. 33,8%) - p < 0,001 para todos. A acurácia dos melhores pontos de corte para o diagnostico de PAVM em relação aos BRA monoclonais e polivalentes foi > 95,0% e > 93,3%, respectivamente. Conclusões: O número de BRA em amostras de AT foi maior nos casos que nos controles. Nossos achados indicam que a avaliação de BRA no AT é uma ferramenta promissora para aumentar a especificidade do diagnóstico de PAVM. A técnica pode ser custo-efetiva e, portanto, útil em locais com poucos recursos, com as vantagens de minimizar resultados falso-positivos e evitar o tratamento excessivo.
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Mathias, Luis Antonio
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Id: lil-774219
Autor: Silva, Felipe Jorge da; Santos, Carlos Eduardo Pereira dos; Silva, Talita Ribeiro; Silva, Glaucenyra Cecília Pinheiro; Loffler, Sylvia Grune; Brihuega, Bibiana; Alarcon, Miguel Frederico Fernandez; Curci, Vera Cláudia Magalhães; Mathias, Luis Antonio.
Título: Search of leptospires and of antibodies against leptospires in animals and human beings in farms in Pantanal and Caatinga Brazilian biomes / Pesquisa de leptospiras e de anticorpos contra leptospiras em animais e humanos de propriedades rurais nos biomas brasileiros Pantanal e Caatinga
Fonte: Braz. j. vet. res. anim. sci;52(3):234-248, 20150000. tab, ilus.
Idioma: pt.
Resumo: The occurrence of Leptospira and of seroreactivity against Leptospira was investigated in animals and humans from six farms located in two Brazilian biomes that have different geoclimatic conditions: Pantanal municipalities of Miranda (MS), Itiquira (MT) and Pocone (MT) and Caatinga municipalities of Sobradinho (BA), Garanhuns (PE) and Sobral (BA). Blood and urine samples of wildlife, domestic animals and humans were collected at each property. The samples were collected from February to April 2012 in Caatinga and from July to September 2012 in Pantanal. The serological reactivity against Leptospira spp. was verified by microscopic agglutination technique (MAT) made with a collection consisting by 24 antigens of Leptospira spp. The leptospires research was carried out by urine samples crop sown in Fletcher resources and Ellinghausen McCullough Johnson Harris (EMJH). Crops with growth of leptospires were referred to the Leptospirosis Laboratory of the Institute of Pathobiology, National Institute of Agricultural Technology, Buenos Aires, Argentina and isolated Leptospira strains were genotyped with the technique of Multiple Locus Variable Number Tandem Repeat Analysis (MLVA). The classification procedure employed the VNTR 4, 7, 9, 10, 19, 23, 31, LB4 and LB5, which discriminate strains of L. interrogans and L. borgpetersenii. In Pantanal, 17 wildlife, 65 domestic animals and two humans were examined. In Caatinga, seven wild animals were examined, along with 100 domestic animals and 26 humans. Of 84 blood samples tested in Pantanal, 47 (55.95%) were positive and, of 133 in Caatinga, 59 (44.36%) were reactant. By Fishers exact test, considering a 0.05 significance level, there was no difference between the proportions of serum reagent animals against Leptospira spp. in two biome reviews (p = 0.063). The predominant serovars in SAM reactions were: 1) Pantanal Bratislava (wildlife, dogs and humans), Grippotyphosa (horses and cattle); 2) Caatinga Copenhageni...

Foi investigada a ocorrência de leptospiras e de sororreatividade para leptospiras em animais e seres humanos de seis propriedades rurais localizadas em dois biomas brasileiros que apresentam condições geoclimáticas distintas: Pantanal municípios de Miranda (MS), Itiquira (MT) e Poconé (MT) e Caatinga municípios de Sobradinho (CE), Garanhuns (PE) e Sobral (BA). Em cada uma das propriedades, foram realizadas colheitas de sangue e de urina de animais selvagens de vida livre, animais domésticos e de seres humanos. As colheitas de materiais foram realizadas no período de fevereiro a abril de 2012 no bioma Caatinga e no período de julho a setembro de 2012 no bioma Pantanal. A reatividade sorológica contra Leptospira spp. foi verificada pela técnica de soroaglutinação microscópica (SAM) efetuada com uma coleção de antígenos constituída por 24 sorovares de Leptospira spp. A pesquisa de leptospiras foi efetuada por cultivos de amostras de urina semeadas nos meios Fletcher e de Ellinghausen McCullough Johnson Harris (EMJH). Os cultivos em que houve crescimento de leptospiras foram encaminhados ao Laboratório de Leptospirose do Instituto de Patobiologia, Instituto Nacional de Tecnologia Agropecuária, Buenos Aires, Argentina e as estirpes de leptospiras isoladas foram genotipadas com o emprego da técnica de Multiple Locus Variable Number Tandem Repeat Analysis (MLVA). O procedimento de tipificação empregou os VNTR 4, 7, 9, 10, 19, 23, 31, Lb4 e Lb5, que discriminam estirpes de L. interrogans e L. borgpetersenii. No Pantanal, foram examinados 17 animais selvagens, 65 animais domésticos e dois humanos. Na Caatinga, foram examinados sete animais selvagens, 100 animais domésticos e 26 humanos. Das 84 amostras de sangue examinadas no Pantanal, 47 (55,95%) foram reagentes e, das 133 da Caatinga, 59 (44,36%) foram reagentes. Pelo teste exato de Fisher, considerando-se um nível de significância de 0,05, não houve diferença entre as proporções de animais...
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