Neurological Manifestations in a Patient of Kikuchi's Disease.

Kikuchi's disease is a rare condition that mainly presents in young females along with lymphadenitis. Involvement of the nervous system is rare. We report a young female who presented with fever, headache, vomiting, lymphadenopathy and neurological manifestations in the form of aseptic meningitis, ataxia and paraparesis. Since the disease can be mistaken clinically and histologically for SLE, lymphoma and tuberculosis it is important to differentiate it from these conditions. Also our case emphasizes the importance of recognising this disorder in diagnosing patients with meningitis.

Dapsone hypersensitivity syndrome with myocarditis.

Drug hypersensitivity with myocarditis is known to occur with many drugs especially with antiepileptics, sulpha-compounds and daposne. Dapsone (4, 4 diaminodiphenyl sulphone) induced hypersensitivity is known to occur in about 2% of leprosy patients on treatment and an incidence of 1.66% in non-leprosy patients. We report this rare case of dapsone hypersensitivity syndrome in a girl on dapsone who presented with fever, anaemia, jaundice, skin rash, lymphadenopathy, and hepatomegaly and later developed myocarditis. The drug was withdrawn and the patient was treated with steroids. She improved and was discharged. She relapsed after the corticosteroids were discontinued at home.

Histological evaluation of sheep ovarian tissue after laparoscopic partial ovariectomy.

In the present study, there was assessment of the damage to tissue caused by partial laparoscopic ovariectomy using bipolar forceps in sheep. Fragments of ovaries of six sheep were removed using bipolar forceps by making a transverse section in the middle third of the organ via three-portals that were made using laparoscopy. The fragments were subjected to standard histological examinations and the lesions attributed to the procedure were investigated using an optical microscope and Image J software. The results were assessed using an analysis of variance and the Tukey test. All the laminae had minimal tissue damage. The mean amount of highly damaged tissue was 1.8%, and of partially damaged tissue was 5.6%. The mean total area of healthy tissue in the fragments was 94.4%. The results of the study indicate this procedure can be conducted withvery little tissue damage occurring. The use of this procedure, therefore, can be incorporated in future reproductive studies without altering the functions of the in situ ovarian tissues.

Concordance between Neurologic Screening Test and Neurologic Examination in newborns.

The aims of this study were to calculate concordance among results of the assessment of a population of neonates by using a screening version of neurologic assessment developed by our group with the Amiel-Tison examination, to evaluate distribution of the findings for each item in the studied population, and to develop an optimality score to aid in the detection of possible deviations in infants. Infants in this report include 107 infants born consecutively; they were mainly at-term infants, or preterm infants who, when reaching at-term corrected age, were suspected to be abnormal with a wide spectrum of complications. Newborns were tested by neurologic screening and neurologic examination. Agreement, correlations among tests, sensitivity, and specificity were calculated. Correlation among results from Neurological Screening and Neurological Examination was significant (rho = 0.759, p = 0.01), and Cronbach's alpha concordance had an acceptable value (0.83). Sensitivity and specificity of neurologic screening after Amiel-Tison examination comparison were 0.98 and 0.82, respectively. Our results support the use of the neurologic screening proposed.

[Impact of the Family Health Strategy: an analysis in cities in Northeast Brazil with more than 100,000 inhabitants]. / Impacto da Estratégia Saúde da Família sobre indicadores de saúde bucal: análise em municípios do Nordeste brasileiro com mais de 100 mil habitantes.

This study aimed to analyze the impact of the Family Health Strategy (FHS) on oral health in Northeast Brazil, in 12 municipalities with more than 100 thousand inhabitants. The reference was 20 census tracts, 10 of which in areas with oral health covered by the FHS for at least a year, matched with 10 census tracts without oral health coverage. The total sample included 59,221 individuals. Three possible effects were considered: negative, positive, and absence of effect on the outcomes, based on the prevalence ratio adjusted by Poisson regression. The outcomes "access to collective preventive measures" and "treatment of toothache" indicate a positive effect in the FHS oral health model. However, the outcomes "coverage of tooth extraction" and "restorative treatment" showed either a negative effect or no effect in the majority of the municipalities in the sample. Evidence indicates that within the FHS, the results reflect the local organizational models for oral health care.

[Inclusion of oral health teams in the Family Health Program and its impact on the use of dental services]. / Impacto da Estratégia Saúde da Família com equipe de saúde bucal sobre a utilização de serviços odontológicos.

The aim of this study was to determine whether the incorporation of Oral Health Teams (OHT) into the Family Health Program (FHP) led to greater use of dental services in Natal, Rio Grande do Norte State, Brazil. Twenty-two census tracts were studied, 11 located in areas covered by the FHP for at least one year and paired according to socioeconomic criteria with 11 tracts in areas without coverage. The final sample consisted of 4,604 subjects. The areas covered by OHT in the FHP (model 1) were compared to areas covered by the FHP but without OHT (model 2) and to areas covered by traditional primary care services or without any coverage (model 3). In areas covered by model 1, 32% of the population used dental care, whereas in models 2 and 3 the rates were 45.4% and 17.5%, respectively (p < 0.001). With respect to age, model 1 only exceeded model 2 in the age bracket 12 years and under. The study concludes that OHT in the FHP only had a positive impact on the target indicator when compared to model 3.

Impacto da Estratégia Saúde da Família sobre indicadores de saúde bucal: análise em municípios do Nordeste brasileiro com mais de 100 mil habitantes / /Impact of the Family Health Strategy: an analysis in cities in Northeast Brazil with more than 100, 000 inhabitants

Este estudo objetivou verificar o impacto da Estratégia Saúde da Família (ESF) sobre a saúde bucal na população do Nordeste do Brasil de 12 municípios com mais de 100 mil habitantes. Tomou-se, como referência, 20 setores censitários, 10 inseridos em áreas cobertas pela saúde bucal na ESF há, pelo menos, um ano, emparelhados com 10 setores de áreas não cobertas. A amostra foi de 59.221 indivíduos. Foram considerados três efeitos possíveis: negativo, positivo e ausência de efeito sobre os desfechos, com base na razão de prevalência ajustada pela regressão de Poisson. Com relação aos resultados encontrados, verificou-se que, tanto o "acesso a ações preventivas coletivas" quanto o "tratamento da dor de dente" apontam para um efeito positivo no modelo de prática da saúde bucal na ESF. Porém, os desfechos "cobertura de exodontia" e "tratamento restaurador" demonstraram efeito negativo ou sem efeito na maioria dos municípios pesquisados. Há indícios de que os resultados obtidos refletem os modelos de organização locais da saúde bucal na ESF.(AU)

This study aimed to analyze the impact of the Family Health Strategy (FHS) on oral health in Northeast Brazil, in 12 municipalities with more than 100 thousand inhabitants. The reference was 20 census tracts, 10 of which in areas with oral health covered by the FHS for at least a year, matched with 10 census tracts without oral health coverage. The total sample included 59,221 individuals. Three possible effects were considered: negative, positive, and absence of effect on the outcomes, based on the prevalence ratio adjusted by Poisson regression. The outcomes "access to collective preventive measures" and "treatment of toothache" indicate a positive effect in the FHS oral health model. However, the outcomes "coverage of tooth extraction" and "restorative treatment" showed either a negative effect or no effect in the majority of the municipalities in the sample. Evidence indicates that within the FHS, the results reflect the local organizational models for oral health care.(AU)

Impacto da Estratégia Saúde da Família sobre indicadores de saúde bucal: análise em municípios do Nordeste brasileiro com mais de 100 mil habitantes / Impact of the Family Health Strategy: an analysis in cities in Northeast Brazil with more than 100,000 inhabitants

Este estudo objetivou verificar o impacto da Estratégia Saúde da Família (ESF) sobre a saúde bucal na população do Nordeste do Brasil de 12 municípios com mais de 100 mil habitantes. Tomou-se, como referência, 20 setores censitários, 10 inseridos em áreas cobertas pela saúde bucal na ESF há, pelo menos, um ano, emparelhados com 10 setores de áreas não cobertas. A amostra foi de 59.221 indivíduos. Foram considerados três efeitos possíveis: negativo, positivo e ausência de efeito sobre os desfechos, com base na razão de prevalência ajustada pela regressão de Poisson. Com relação aos resultados encontrados, verificou-se que, tanto o "acesso a ações preventivas coletivas" quanto o "tratamento da dor de dente" apontam para um efeito positivo no modelo de prática da saúde bucal na ESF. Porém, os desfechos "cobertura de exodontia" e "tratamento restaurador" demonstraram efeito negativo ou sem efeito na maioria dos municípios pesquisados. Há indícios de que os resultados obtidos refletem os modelos de organização locais da saúde bucal na ESF.

This study aimed to analyze the impact of the Family Health Strategy (FHS) on oral health in Northeast Brazil, in 12 municipalities with more than 100 thousand inhabitants. The reference was 20 census tracts, 10 of which in areas with oral health covered by the FHS for at least a year, matched with 10 census tracts without oral health coverage. The total sample included 59,221 individuals. Three possible effects were considered: negative, positive, and absence of effect on the outcomes, based on the prevalence ratio adjusted by Poisson regression. The outcomes "access to collective preventive measures" and "treatment of toothache" indicate a positive effect in the FHS oral health model. However, the outcomes "coverage of tooth extraction" and "restorative treatment" showed either a negative effect or no effect in the majority of the municipalities in the sample. Evidence indicates that within the FHS, the results reflect the local organizational models for oral health care.

Impacto da Estratégia Saúde da Família com equipe de saúde bucal sobre a utilização de serviços odontológicos / Inclusion of oral health teams in the Family Health Program and its impact on the use of dental services

The aim of this study was to determine whether the incorporation of Oral Health Teams (OHT) into the Family Health Program (FHP) led to greater use of dental services in Natal, Rio Grande do Norte State, Brazil. Twenty-two census tracts were studied, 11 located in areas covered by the FHP for at least one year and paired according to socioeconomic criteria with 11 tracts in areas without coverage. The final sample consisted of4,604 subjects. The areas covered by OHT in the FHP (model 1) were compared to areas covered by the FHP but without OHT (model 2) and toareas covered by traditional primary care services or without any coverage (model 3). In areas covered by model 1, 32 percent of the population used dental care, whereas in models 2 and 3 the rateswere 45.4 percent and 17.5 percent, respectively (p < 0.001). With respect to age, model 1 only exceeded model 2 in the age bracket 12 years and under. The studyconcludes that OHT in the FHP only had a positive impact on the target indicator when compared to model 3.(AU)

Este estudo objetivou verificar se a incorporação da equipe de saúde bucal no Programa Saúde da Família (PSF) gerou uma maior utilização dos serviços odontológicos no Município de Natal, Rio Grande do Norte, Brasil. Tomou-se como referência 22 setores censitários, 11 inseridos em áreas cobertas pela saúde bucal no PSF há pelo menos um ano, emparelhados com base em critérios sócio-econômicos, com 11 setores deáreas não-cobertas. A amostra final constou de 4.604 indivíduos. Foram comparadas áreas cobertas pela saúde bucal no PSF (modelo 1) com áreas cobertas por unidades de PSF porém sem saúde bucal (modelo 2) e com áreas cobertas por unidades básicas de saúde tradicionais ou sem nenhuma cobertura (modelo 3). Os resultados mostraram que, nas áreas cobertas pelo modelo 1, 32 por cento referiram assistência odontológica, sendo este resultado igual a 45,4 por cento para o modelo 2 e 17,5 por cento para o modelo 3 (p < 0,001). Analisando-se as faixas etárias, o modelo 1 supera o modelo 2 apenas na faixa de até 12 anos. Conclui-se, portanto, que a saúde bucal no PSF apresenta impacto positivo sobre o indicador avaliado somente quando comparada com áreas sem cobertura (modelo 3).(AU)

Impacto da Estratégia Saúde da Família com equipe de saúde bucal sobre a utilização de serviços odontológicos / Inclusion of oral health teams in the Family Health Program and its impact on the use of dental services

The aim of this study was to determine whether the incorporation of Oral Health Teams (OHT) into the Family Health Program (FHP) led to greater use of dental services in Natal, Rio Grande do Norte State, Brazil. Twenty-two census tracts were studied, 11 located in areas covered by the FHP for at least one year and paired according to socioeconomic criteria with 11 tracts in areas without coverage. The final sample consisted of4,604 subjects. The areas covered by OHT in the FHP (model 1) were compared to areas covered by the FHP but without OHT (model 2) and toareas covered by traditional primary care services or without any coverage (model 3). In areas covered by model 1, 32% of the population used dental care, whereas in models 2 and 3 the rateswere 45.4% and 17.5%, respectively (p < 0.001). With respect to age, model 1 only exceeded model 2 in the age bracket 12 years and under. The studyconcludes that OHT in the FHP only had a positive impact on the target indicator when compared to model 3.

Este estudo objetivou verificar se a incorporação da equipe de saúde bucal no Programa Saúde da Família (PSF) gerou uma maior utilização dos serviços odontológicos no Município de Natal, Rio Grande do Norte, Brasil. Tomou-se como referência 22 setores censitários, 11 inseridos em áreas cobertas pela saúde bucal no PSF há pelo menos um ano, emparelhados com base em critérios sócio-econômicos, com 11 setores deáreas não-cobertas. A amostra final constou de 4.604 indivíduos. Foram comparadas áreas cobertas pela saúde bucal no PSF (modelo 1) com áreas cobertas por unidades de PSF porém sem saúde bucal (modelo 2) e com áreas cobertas por unidades básicas de saúde tradicionais ou sem nenhuma cobertura (modelo 3). Os resultados mostraram que, nas áreas cobertas pelo modelo 1, 32% referiram assistência odontológica, sendo este resultado igual a 45,4% para o modelo 2 e 17,5% para o modelo 3 (p < 0,001). Analisando-se as faixas etárias, o modelo 1 supera o modelo 2 apenas na faixa de até 12 anos. Conclui-se, portanto, que a saúde bucal no PSF apresenta impacto positivo sobre o indicador avaliado somente quando comparada com áreas sem cobertura (modelo 3).

Migraña: estudio de los factores de riesgo de las crisis en niños y adolescentes / Migraine: study of the risk factors of the crises in children and adolescents

Introducción. La migraña es una enfermedad de curso episódico, que se caracteriza por la presencia de cefalea. En el manejo de la migraña debe tenerse en cuenta la coexistencia de situaciones especiales endógenas y del medio ambiente. El objetivo de la investigación fue identificar los factores de riesgo implicados en el desencadenamiento de las crisis. Métodos. Se realizó un estudio longitudinal retrospectivo con niños y adolescentes con migraña, que acudieron a la consulta de neuropediatría del Hospital Pediátrico Docente William Soler, entre el 2004 y el 2006. Después de clasificados los casos, se estudiaron en Genética Clínica. Resulttados. En el análisis del comportamiento de la herencia se obtuvo un total de 102 pacientes (85 por ciento) con herencia autosómica dominante, en cuya transmisión jugó un papel importante la línea materna (69 casos; 57,55 por ciento). Se realizó unestudio del medio ambiente y se observó la participación de factores del hábitat (49,16 por ciento), y comórbidos psicopatológicos (45 por ciento) como detonantes de las crisis (p = 0,000). Conclusiones. Los factores de riesgo constituyen herramientas importantes para determinar los detonantes de las crisis de migraña.

Introductions: Migraine is a disease of episodic course characterized by the presence of headache. In the management of migraine we should consider the coexistence of endogenous special situations and of environment. The aim of this research was to identify the risk factors involved in the triggering of the crisis. Methods: A retrospective and longitudinal study was conducted among children and adolescents with migraine that were seen in the Neuropediatrics Service of William Soler Teaching Children Hospital from 2004 to 2006. Results: In the analysis of the hereditary behaviour we had a total of 102 patients (85 percent) with dominant autosomal inheritance, in whose transmission the maternal line played a significant role (60 cases; 57.55 percent). A study of the environment was carried out, and it was observed the participation of habitat factors (46.16 percent), as well as of pshychopathological comorbid factors (45 percent) that triggered the crises (p = 0..000). Conclusions: Risk factors are significant tools to determine the factors triggering the migraine crises.

Genetic evaluation for persistency of lactation in Holstein cows using a random regression model

A model for analyzing test day records including both fixed and random coefficients was applied to the genetic evaluation of first lactation data for Holstein cows. Data comprising 87045 test-day milk yield records from calving between 1997 and 2001 from Holstein herds in 10 regions of the Brazilian state of Minas Gerais. Six persistency of lactation measures were evaluated using breeding values obtained by random regression analyses. The Wilmink function was used to model the additive genetic and permanent environmental effects. Residual variance was constant throughout lactation. Ranking for animals did not change among criteria for persistency measurements, but ranking changes were observed when the estimated breeding value (EBV) for persistency of lactation was contrasted with those estimated for 305-day milk yield (305MY). The rank correlation estimates for persistency of lactation and 305MY were practically the same for sire and cows, and ranged from -0.45 to 0.69. The EBVs for milk yield during lactation for sires producing daughters with superior 305MY indicate genetic differences between sires regarding their ability to transmit desirable persistency of lactation traits. This suggests that selection for total lactation milk yield does not identify sires or cows that are genetically superior in regard to persistency of lactation. Genetic evaluation for persistency of lactation is important for improving the efficiency of the milk production capacity of Holstein cows.

Genetic diversity between herds of Alpine and Saanen dairy goats and the naturalized Brazilian Moxotó breed

Brazilian naturalized goat breeds are adapted to the semiarid conditions prevalent in the Northeast region of the country (which has the largest Brazilian goat heard) and represent an as yet uninvestigated source of genetic diversity. Currently, imported goat breeds are crossed with Brazilian naturalized goat breeds, endangering the genetic potential of the naturalized breeds. We used 11 microsatellite markers to determine the genetic diversity among imported (non-naturalized) dairy Alpine and Saanen goats and naturalized Brazilian Moxotó goats. We genotyped 292 goats from three herds (one private, one from the University of Minas Gerais and the Moxotó conservation herd from Embrapa Caprinos) and found that the general heterozygosity was 0.6952 for Alpine, 0.7043 for Saanen and 0.4984 for Moxotó goats. The number of alleles ranged from 5 (INRA005) to 11 (BM3205), with an average of 7 alleles per locus in the imported breeds and 3.5 alleles per locus in the Moxotó breed. Mean differentiation between populations was higher for herds (F ST S = 0.0768) than for breeds (F ST P = 0.0263), indicating similarity between the imported breeds and the existence of crosses between them. Nei's genetic distance was highest between the Moxotó breed and the imported breeds. These indicate that further studies using these molecular markers would be fruitful.

Estimation of genetic parameters for test-day milk yield in Holstein cows using a random regression model

Test-day milk yield records of 11,023 first-parity Holstein cows were used to estimate genetic parameters for milk yield during different lactation periods. (Co)variance components were estimated using two random regression models, RRM1 and RRM2, and the restricted maximum likelihood method, compared by the likelihood ratio test. Additive genetic variances determined by RRM1 and additive genetic and permanent environmental variances estimated by RRM2 were described, using the Wilmink function. Residual variance was constant throughout lactation for the two models. The heritability estimates obtained by RRM1 (0.34 to 0.56) were higher than those obtained by RRM2 (0.15 to 0.31). Due to the high heritability estimates for milk yield throughout lactation and the negative genetic correlation between test-day yields during different lactation periods, the RRM1 model did not fit the data. Overall, genetic correlations between individual test days tended to decrease at the extremes of the lactation trajectory, showing values close to unity for adjacent test days. The inclusion of random regression coefficients to describe permanent environmental effects led to a more precise estimation of genetic and non-genetic effects that influence milk yield.

Genetic trends in the performance and reproductive traits of pigs

The selection and evaluation of breeds and purebred lines to be used as the parental stock is an important step for the success of any animal breeding program. In this study, the feed:gain ratio, backfat thickness corrected for 100 kg, age to 100 kg, average daily gain, and age of sow at first farrowing were used to evaluate the genetic trends for direct and maternal additive genetic values in Large White pigs. The total number of piglets born or born alive and the litter weight at birth were used as indicators of the genetic trends for the direct additive values. The genetic trends were calculated by regression of the average predicted genetic values per year for each trait versus the offspring's year of birth (for performance traits) or versus the dam year of birth (for reproduction traits). The genetic trend estimates for direct effects showed that selection decisions made during the breeding program effectively improved the performance traits. However, for reproductive traits, the regression estimates showed no definite trend. The genetic trends for the maternal effects were generally positive but of low magnitude.

Estudo genético-quantitativo de medidas lineares de eqüinos da raça Mangalarga Marchador -I. Estimativas dos fatores de ambiente e parâmetros genéticos / Genetic-quantitative study of body measurements of Mangalarga Marchador horse bred in Brazil -I. Estimates of genetic and environmental effects

Embora o interesse em pesquisas sobre morfologia em algumas espécies tenha sido menor do que aquele proporcionado aos estudos sobre a produtividade, as características em eqüinos são importantes por estarem intrinsecamente relacionadas à sua funcionalidade de aptidão. Desta forma, os objetivos do presente estudo foram os de estimar herdabilidades e correlações fenotípicas e genéticas entre doze medidas corporais provenientes dos Livros de Registro Genealógicos da Associação Brasileira dos Criadores do Cavalo Mangalarga Marchador, entre 1967 e 1992, por ocasião do Registro Genealógico de 29.076 animais. As estimativas foram efetuadas pelo método dos quadrados mínimos, através do programa Harvey (1990). Os efeitos fixos de ano, idade à avaliação e sexo foram significativos para a maioria das medidas estudadas. Estimativas de herdabilidade apresentam valores de moderados (0,40 para o perímetro torácico) a altos (0,80 para o comprimento do dorso), com um valor médio para as doze medidas corporais de 0,56, evidenciando a importância do componente genético aditivo nas características morfológicas dos animais Mangalarga Marchador. As correlações genéticas entre as características variaram de -0,09 (perímetro da canela-comprimento do dorso) a 0,96 (altura na cernelha - altura na garupa). Sessenta e três das 66 correlações possíveis (95,5%) apresentaram sinal positivo e destas, 40 (60,6%) apresentaram valor igual ou superior a 0,30. Este achado demonstra o sinergismo existente entre a maioria das características estudadas.

The objective of this study was to estimate heritabilities, genetic and phenotypic correlation of twelve body measurements of the Brazilian horse bred Mangalarga Marchador. Records from 29,076 animais, measured between 1967 and 1992, were analyzed by Least-Square and Maximum Likelihood Computer Program (Harvey, 1990). The fixed effect of year, age, and sex of foal were signifcant for most of the characteristics. Heritability estimates varied between 0.40 (thoracic diameter) to 0.80 (back length), with a medium value of 0.56, characterizing the importance of the genetic component of body measurements in horses. Genetic correlations varied between -0.09 (cannon diameter-back length) and 0.96 (withers height). Sixty-three of the 66 possible correlations (95.5%) were positive; 40 (60.6%) were superior to 0.30. lt was evident that selection for one (or combination) of traits would have effect on almost all other morphological traits.

Curva de sobrevivência de bactérias isoladas do leite de vacas com mastite a três extratos etanólicos de própolis

Estudou-se o efeito de extratos etanólicos de própolis obtidos por álcool 70, 80 e 95%, sobre amostras de Staphy/ococcusaureus e Streptococcus agalactiae isoladas do leite de vacas com mastite. Não houve diferença significativa (p>0,01) naatividade antibacteriana entre os três tipos de extratos etanólicos de própolis estudados. As duas concentrações de extratosetanólicos utilizadas na avaliação da sensibilidade do Staphylococcus aureus, 3,0 e 2,0 mg/ml, inibiram, de maneira semelhante,as três amostras bacterianas testadas. Somente em uma amostra foi observada ação bactericida dos extratos etanólicosde própolis, em ambas as concentrações, a partir de 12 horas de exposição. Nas duas amostras de Streptococcus aga/actiae,observou-se o efeito bactericida da própolis ao final do período de 24 horas de exposição às concentrações de 0,43 e 0,3 mg/ml. Verificou-se que, com dosagens cerca de dez vezes menores que as aplicadas para Staphylococcus aureus, houve umacompleta e irreversível inibição do Streptococcus agalactiae, dentro do período estudado. Estes resultados estimulam oprosseguimento de novas investigações sobre a utilização de extratos de própolis, em veículos adequados, com vistas aotratamento da mastite bovina.

Efeito de extratos de própolis verde sobre bactérias patogênicas isoladas do leite de vacas com mastite / Effect of green propolis extracts on patogenic bacteria isolated from milk of cows with mastitis

A sensibilidade, in vitro, de amostras de Staphylococcus aureus, Staphylococcus sp. coagulase negativos, Streptococcus agalactiae e bactérias do grupo dos coliformes, isoladas do leite de vacas com mastite, a diferentes extratos de própolis, na concentraçäo de 100 mg/ml, foi avaliada pela técnica do antibiograma em discos de papel de filtro com sobrecamada de meio de cultura. Os resultados mostraram que o extrato etanólico de própolis comercial, os extratos etanólico e, em menor proporçäo, o metanólico inibiram o crescimento das amostras de bactérias Gram-positivas, Staphylococcus aureus, Staphylococcus sp. coagulase negativos e Streptococcus agalactiae. Os extratos obtidos através da água, do acetato de etila e do clorofórmio näo inibiram nenhuma amostra bacteriana, assim como os veículos etanol e metanol puros utilizados como controle. A bactéria Gram-negativa testada, do tipo coliforme, näo apresentou sensibilidade a nenhum dos extratos. Verificaram-se diferenças significativas (p < 0,05) na sensibilidade aos extratos entre amostras bacterianas de uma mesma espécie, mas de origens diferentes. Nas amostras de Streptococcus agalactiae, os diâmetros dos halos de inibiçäo do crescimento bacteriano ao redor do disco foram maiores que aqueles observados para as amostras de Staphylococcus aureus e Staphylococcus sp. coagulase negativos. Todos estes resultados estimulam o prosseguimento de novas pesquisas sobre a utilizaçäo de extratos de própolis, em veículos adequados, com vistas ao tratamento da mastite bovina