Do Ato Infracional à Luz dos Direitos Humanos (Portuguese Edition)

We compared a 2-D spin-echo SE2D sequence with a 3-D fast imaging with steady-state precession FISP3D sequence in the attempt to compare the reliability of each in the detection of knee injuries. Arthroscopy was employed as a control technique. Our study revealed no statistically significant difference between the two sequences, although the overall sensitivity for the detection of meniscal lesions was slightly greater with the FISP3D sequence; however, the reliability in the detection of ruptures of the posterior cruciate ligament is less with this sequence than with the SE2D sequence.

Both sequences showed very low sensitivity in the detection of hyaline cartilage injuries. El objetivo del presente trabajo es determinar la estructura de una fitohormona. Full Text Available Conflict and violence was the destructive reality that showed reduction and alienated of existence humanity. Because of that condition, the basic need to create a culture of peace as constructive reality that connected relationship between all of people is urgently.

Other informant like a King of negeri, Kapitan negeri and all of people also involve in this research. The result of this research showed that culture of peace can be found in local wisdom as pela tradition. Lesao pulmonar induzida pela ventilacao em recem-nascidos prematuros. Pesquisou-se na base de dados PubMed, incluindo artigos relevantes, os unitermos "ventilator induced lung injury preterm", "continuous positive airway pressure", "preterm" e "bronchopulmonary dysplasia".

Guia de receitas brasileiras: In the article she disputes with Vladimir Mau, a political scientist, now Rector of the referred School, about the results of the Russian systemic transformation of the 90's and suggests, on the basis of these results, a different path for the future development of the country. Para ello se han acudido a las fuentes originales: En 7 casos los ligamentos colaterales pudieron ser evaluados correctamente. Role of magnetic resonance imaging in predicting injury morbidity.

La gravedad de las lesiones fue: Magnetic resonance imaging is a useful tool for stress fractures SF diagnosis, allowing the estimation of injury severity. The aim of this study was to determine the relation between the severity of SF in athletes determined by magnetic resonance imaging and the morbidity estimated as the time to return to sport. Thirty-four cases of stress fractures, 29 athletes; 12 female, 17 male; age The electromagnetic properties that present hydrogen and other nucleus of agroalimentary products, have allowed widely use of Magnetic Resonance MR to study the composition and internal structure of these biological materials in a micro and macrocospic scale, in a nondestructive way.

In this paper the physical principles, basic equipment to measure the MR signals and the MR. T2-weighted MR imaging of liver lesions: The authors evaluated prospectively 89 liver lesions in 73 patients using a 1. The quantitative parameters were: The qualitative analysis was performed by two observers in consensus who examined four parameters: Repeated measures analysis of variance was utilized to compare the quantitative variables and Friedman's nonparametric test for the qualitative parameters. Resonance absorption of nuclear gamma radiation; Absorption par resonance des rayons gamma; Rezonansnaya absorbtsiya i rasseyanie yadernogo gamma-izlucheniya; Absorcion por resonancia de las radiaciones gamma en los nucleos.

L'intensite de l'absorption, la configuration des raies spectrales et leurs deplacements ont ete observes en fonction de la temperature. La polarisation des rayonnements a ete examinee au cours d'experiences effectuees a l'aide de sources et absorbeurs magnetises. Le spectre hyperfin des rayonnements de resonance a ete analyse avec et sans polarisation. Ces etudes ont conduit a une interpretation de la structure hyperfine en fonction des proprietes des etats nucleaires et de l'interaction hyperfine dans le fer. On a egalement etudie l'effet d'un champ magnetique externe sur la structure hyperfine.

Des observations detaillees ont ete faites sur le spectre des rayonnements de resonance filtres, en fonction du temps, sous toute une serie de conditions. Han observado la intensidad de la absorcion, asi como la configuracion y el desplazamiento de las lineas espectrales en funcion de la temperatura.

Examinaron la polarizacion de las radiaciones mediante experimentos realizados con ayuda de fuentes magnetizadas y de absorbentes, y analizaron el espectro hiperfino de la. Resonances and Tides in Natural Satellites Systems. Magnetic resonance imaging allows to investigate morphological and functional aspects of the brain, something extremely useful to diagnose neurological diseases, including the cerebrovascular diseases and, of course, the cerebral ischemia in the first hours of its ocurrence, so it facilitates to follow the clinical course of ictus, to reduce the necrosis area and to guarantee a better life quality of patients.

Contrary to tomography and angiography it doesn't use ionizing radiations. In this article it is concluded, among other things, that its high sensibility overcomes the number of confirmations obtained through computarized axial tomography. Realizou-se um estudo transversal com jovens adultos do sexo masculino. Comparative study of fast T 2-weighted images using respiratory triggered, breath-hold, fat suppression and phased array multi coil for liver evaluation by magnetic resonance imaging; Estudo comparativo das sequencias rapidas ponderadas em T2, utilizando-se sincronizacao respiratoria, apneia, supressao de gordura, bobina de corpo e bobina de sinergia para a avaliacao do figado pela ressonancia magnetica.

The objective of this study was to compare both qualitatively and quantitatively six T 2-weighted turbo spin-echo sequences varying the respiratory compensation technique, associating or not fat tissue suppression and using different types of coils. We performed a prospective study of 71 consecutive patients that were submitted to MRI of the liver using a 1. The six following pulse sequences were used: Images were analyzed quantitatively by measuring the signal-to-noise ratios and qualitatively by evaluating the sharpness of hepatic contours, visibility of intrahepatic vessels and other segmental landmarks, and the presence of artifacts.

The respiratory-triggered sequences were better than the breath-hold sequences in both qualitative and quantitative analysis p A imagem das adolescentes na web: Trata-se de imagens detalhadamente trabalhadas para apresentarem uma corpo O presente estudo buscou compreender o grande interesse dos adolescentes pela filmografia de horror na atualidade. Optou-se por realizar o estudo com alunos de uma escola estadual do interior do estado do Rio Grande do Sul, a qual promove um projeto que objetiva o desenvolvimento de oficinas sobre cinema com os alunos, se Medicina complementar e alternativa: CE-Magnetic Resonance mammography for the evaluation of the contralateral breast in patients with diagnosed breast cancer; Ruolo della Risonanza Magnetica con Gd-BOPTA nella valutazione della mammella controlaterale in pazienti con tumore recentemente diagnosticato.

Dipartimento di scienze chirurgiche.

To evaluate the role of contrast-enhanced Magnetic Resonance Mammography MRM in the evaluation of the contralateral breast in patients with recently diagnosed breast cancer. Fifty patients with proved unilateral breast cancer, with a negative contralateral breast at physical examination, ultrasound and mammography, were studied with a 1. A bilateral breast surface coil was used. Dynamic 3D Flash T1-weighted sequences were acquired in the axial plane before and 0, 2, 4, 6 and 8 minutes after the administration of 0.

The level of suspicion was reported on a scale from 0 to 5 following the BI-RADS classification, based on lesion morphology and kinetic features. The results were compared with the histological findings after biopsy or surgery. Histology diagnosed three fibroadenomas, 5 ductal carcinoma in situ, 2 lobular carcinomas in situ, 3 invasive ductal carcinomas and 1 invasive lobular carcinoma.

Contrast enhanced MRM yielded no false negative and three false positives. Our results demonstrate a very good accuracy of Magnetic Resonance Mammography in the detection of synchronous contralateral cancer in patients with newly diagnosed breast cancer. Therefore, contrast-enhanced MRM could be introduced to screen patients with proven breast cancer before they under-go surgery.

Definire il ruolo della Risonanza Magnetica nella valutazione della mammella contro laterale in pazienti con tumore della mammella recentemente diagnosticato. Cinquanta pazienti con tumore monolaterale della mammella e mammella controlaterale. A descriptive and cross-sectional study of patients with discal hernia assisted in "Dr. Juan Bruno Zayas Alfonso" Teaching General Hospital in Santiago de Cuba was carried out from December, to the same month of , to determine the clinical and imaging characteristics of this disorder by means of magnetic resonance.

The age group from 30 to 49 years, male sex, obesity as the main risk factor in the women and the excessive physical load in the men prevailed in the case material, as well as the pain, the lumbar localization and the right posterior centro-lateral and lateral hernias.

It was found that the focal and diffuse protrusions turned out to be more common, associated with bony edema in the terminal plates, that the medullary compression and the secondary myelopathies were caused by cervical focal protrusions and the stenosis of the channel was mainly presented in the lumbar segment. Full Text Available This paper investigates the influence of gender, age, income, and possession of a credit card on the impulsivity in e-commerce. The impulse buying is a type of unplanned purchase, defined as a consumer tendency to buy spontaneously, without reflection, in an immediate way, dominated by emotional attraction and absorbed by the promise of instant gratification.

The impulse buying phenomenon, associated to the online retail is still relatively new and extremely important. According to the results analysis, the unique variable that showed influence on impulsive behavior in online retail is personal income. This outcome was not noticed in the other variables studied. The impulsivity mean score of the sample was 24,84 points, which could vary between 11 and This suggests that the buying behavior on internet of analyzed students is guidance predominantly non-impulsive.

Os resultados indicaram um a Miguel Santos Silva, Profa. El estudio se ha realizado con 96 paci Resonancias de ondas electromagneticas. We describe in this paper a set of experiments designed to make qualitative and quantitative measurements on electromagnetic resonances of several simple systems.

The experiments are designed for the undergraduate laboratory of Electricity and Magnetism in Physics. These experiments can help the students understanding the concept of resonance, which appears in different fields of Physics. This study examines the effectiveness of Post-Entry English Language Assessment PELA as a predictor of international business students' English writing performance and academic performance. An intervention involving the implementation of contextualised English writing workshops was embedded in a specific business subject targeted at students who….

Como essa coautoria, caso exista, se configura nos discursos documentais participativos? Full Text Available http: Full Text Available Resumo: Para analise dos resultados foi realizado o lavado broncoalveolar. Os riscos podem ser classificados em: Finance-led capitalism always has had a propensity for financial crises at key moments of its territorial expansion when bringing hitherto state-run economies into the orbit of market regulation.

The current crisis, however, is different. Not only has it emanated from the center rather than hit somewhere at the periphery, but it also has revealed deep structural flaws in the institutional architecture of contracts, funds, and markets that have made up the new, deregulated system of finance. We are facing a systemic crisis, always an event of epic proportions and lasting impact. We want to shed light on this significant moment.

Confiabilidade da medida de espessuras musculares pela ultrassonografia Reliability of muscle thickness measurements using ultrasound. To determine the reliability of muscle thickness measurements of elbow and knee flexors and extensors using ultrasound, and to quantify the typical error associated to the measurements TEM. Muscle thickness between the adipose tissue and bone interfaces were measured at anatomical landmarks previously identified and recorded to assure the exact site for the retest.

ANOVA did not identify any significant differences between the repeated measurements. To determine whether the presence of late gadolinium enhancement LGE by cardiovascular magnetic resonance CMR predict adverse cardiac events in patients with ventricular arrhythmia. LGE, systolic function and volumes of both ventricles were analyzed. At follow-up was assessed a combined end point: In this consecutive series of patients with ventricular arrhythmia we demonstrate a strong association between myocardial LGE and adverse cardiac events; this supports the hypothesis that myocardial fibrosis is an important arrhythmogenic substrate.

In addition, almost all individuals without LGE were free of events during follow-up suggesting that it is possible to identify through the CMR low-risk individuals who can be treated conservatively. Nuclear magnetic resonance spectroscopy in biomedicine. Nuclear magnetic resonance is a powerful technique that can be used in a wide range of applications, such as the structural characterization of high molecular weight molecules, conformational studies on enzymes in solution, enzyme-substrate or DNA-protein interactions, monitoring of cell metabolism in vivo, and for diagnostic purposes, employing spectroscopic and imaging techniques.

This course was organized in order to introduce the participants to the fundamentals of NMR spectroscopy, and offer practical advice on performing NMR experiments on cell systems, cell and tissue extracts and animal models. The main implications regarding human experiments were also discussed. Finally the quantification of information and the interpretation of data were considered with regard to the main nuclei observed. As respostas variaram bastante.

Dentro das respostas oferecidas o resultado foi: Acreditamos que novas pesquisas envolvendo metodologia. Os sujeitos foram 16 alunos e dois tutores envolvidos na disciplina. In a different move began. As colheitas foram feitas nos seguintes momentos: Foram analisados os processos julgados entre fevere Foram empregados 19 animais adultos, sadios, separados em dois grupos, sendo um de 10 G1 e outro de 09 G2.

Os resultados obtidos permitiram concluir que a levomepromazina e a acepromazina minimizam a arritmia ventricular induzida pela adrenalina, nas doses empregadas. Full Text Available Este trabalho tem como objetivo identificar a quantidade de gases causadores de efeito estufa emitidos anualmente pela bovinocultura no Estado do Rio Grande do Sul. Formicedae em veredas impactadas pela monocultura de Eucaliptus.

Regulation of expression of pectate lyase genes pelA , pelD, and pelE in Erwinia chrysanthemi. These three genes are clustered on a 5-kilobase DNA fragment in the order pelD-pelE-pelA and constitute three independent transcriptional units. We localized the pelDEA cluster near the pro-1 marker on the genetic map of B by chromosomal mobilization with RP Three classes of regulatory mutations responsible for constitutive pectate lyase synthesis have been described kdgR, gpiR, and cri.

We studied the effects of each mutation on pelE, pelD, and pelA expression independently. The mutations kdgR and gpiR mainly affect the expression of pelE and pelD, although PLa synthesis is slightly increased. The cri mutation results in a low level of constitutive expression of the three pel genes, but it is a pleiotropic mutation since other genes not involved in pectinolysis are also affected.

In addition, we demonstrated that exuR, a negative regulatory gene governing the catabolism of hexuronates, does not modify the expression of pel genes. The frequency of gpiR or cri mutations about 10 -8 and the resulting constitutivity of pectate lyase synthesis suggest that these genes act as negative regulatory genes in addition to kdgR, which is already known to encode a repressor.

Moreover, we found that expression of pel-lac fusions carried on pBR derivatives was higher in E. Foram realizadas entrevistas semi-estruturadas com 75 moradores. Asteraceae, Fabaceae e Lamiaceae. Scanlan, Staubli e Rauschning e Bernard. Estenose degenerativa do canal lombar: Dor lombar foi a queixa mais frequente em ambos os grupos.

Characterization and functional assay of a fatty acyl-CoA reductase gene in the scale insect, Ericerus pela Chavannes Hemiptera: Ericerus pela Chavannes Hemiptera: Coccoidae is an economically important scale insect because the second instar males secrete a harvestable wax-like substance. We predicted a aa protein with the FAR family features from the deduced amino acid sequence. The EpFAR protein was localized by immunofluorescence only in the wax glands and testis. S CoA and to its corresponding alcohol.

The data illuminate the molecular mechanism for fatty alcohol biosynthesis in a beneficial insect, E. Nesse sentido, a responsabilidade do professor, por sua abordagem do texto, tem um papel central. Pela igualdade For equality. The paper will discuss the new politics of identity that are been proposed in order to combat racism. It will also reflect on the racialization of public policies and of our costumes. The question raised in the paper is what is the real purpose of these new policies?

Describing the myth of racism and also the myth of the combat of racism in Brazil the recent history of the introduction of policies based on "race" will be analyzed. The question is what is the aim of introducing "race" in our juridical system? What is the aim of such a radical change in our concept of nation?

The modulus value of bituminous materials is a key factor in the design of road pavements and the estimation of their life service. This parameter can be measured in laboratory but, unfortunately, this requires the deterioration of the pavement so as the consumption of time and resources.

Therefore, this study analyses the feasibility of using impact resonance frequency tests as an alternative to traditional methods for determining the dynamic modulus of bituminous mixtures. The sensitivity of this technique has been studied by analyzing its repeatability and reproducibility, studying the variations in the values measured by modifying the dimensions of the specimens, test temperatures and types of mixture tested. In addition, this non-destructive technique has been compared with other traditional tests used to determine the elastic properties of bituminous materials.

The results show that this test could be an interesting tool to characterize the properties and damage state of asphalt layers. Los resultados muestran este ensayo como una herramienta interesante para caracterizar. Observou-se uma mesma produtividade com o uso de 20 kg ha-1 de S0 no solo ou de 6 kg ha-1 via foliar. The objective of this work was to evaluate the elementary sulfur S0 assimilation applied on soybean leaves, and its efficiency compared to the fertilization done in the soil, according to the dose and nature of the nutrient source.

The S0 applied to leaves, independently of the dose and source, was assimilated by the plant, what resulted in increase of total protein content in the leaf. All S sources applied to leaves increased the grain yield, similarly to the application to the soil. The same productivity was observed with the use of 20 kg ha-1 of S0 in the soil or 6 kg ha-1 applied to leaves. The elementary S application efficiency on leaves, based on the content of total soluble protein, was superior to application efficiency on soil.

Alguns resultados da pesquisa "Responsabilidade e garantias ao adolescente autor de ato infracional: Since its approval, The Child and Adolescent Act has been attacked for several critics in the public debate. However neither the specialized dogmatic nor jurisprudence have presented effective efforts to the comprehension of the law or its principles, especially related to internment measures applied to young offenders.

A iniciativa deu-se em virtude da vontade de prover estimulo a alunos, em sua maioria trabalhadores, os quais, cansados da jornada de trabalho, acabam perdendo interesse pelos estudos. Se han observado cuatro sistemas de lineas. La parte central del espectro puede tambien producirse por irradiacion gamma pura. Se exponen brevemente los resultados de la regeneracion por recocido termico y por irradiacion, estudiada por electroforesis. Predprinimaja popytku ustanovit' i dat' harakteristiku jetim defektam s. The Amazon Rainforest is one of the most important topics of transnational activism.

Based on the assumption that the consumption of timber in the Northern hemisphere is largely responsible for deforestation, campaigners have focused on the global timber trade. From a strategy of boycotting tropical timber in the s. Para tanto, foi realizado uma estudo quantitativo, com corte During the FHC government there was an attempt to substitute the reactive Brazilian foreign policy agenda, dominated by the logic of autonomy via distance, by a new proactive international agenda, determined by the logic of autonomy through integration.

According to this agenda, the country should increase its power over the control of its destiny and sort out its problems by actively adhering to the elaboration of norms and guidelines for the conduct of the administration of global order. However, this integration, adhesion and participation policy was not fully followed up by the taking of standpoints that implied practical responsibilities because of structural disabilities. The responsibilities would prepare both government and civil society for an international insertion at a higher level, in the post-Cold War era.

The gains achieved during the FHC terms in office were not sufficient to significantly alter the Brazilian position within the world context. As doses aplicadas ao solo variaram de 0 a 4 kg ha-1 para Zn, de 0 a 4,4 kg ha-1 para B e de 0 a 15,6 kg ha-1 para Mn. Todos os pacientes ficaram satisfeitos com o resultado. Measurement of resonance parameters of cross-sections affecting fast-neutron propagation in various media; Mesure des parametres de resonance de sections efficaces lies a la propagation des neutrons dans differents milieux; Izmerenie parametrov rezonansnoj struktury sechenij, vliyayushchikh na rasprostranenie bystrykh nejtronov v sredakh; Medicion de los parametros de resonancia de las secciones eficaces que afectan a la propagacion de los neutrones rapidos en distintos medios.

Actuellement, les donnees dont on dispose sur les parametres de resonance dans le domaine des neutrons rapides ne sont pas suffisantes pour calculer ces moyennes avec la precision necessaire. Les donnee recueillies montrent que les effets de resonance influent fortement sur les caracteristiques de diffusion de la matiere. El intervalo energetico dentro del cual la resonancia ejerce una influencia decisiva sobre la. This article seeks to analyze, within the recent history of social movements that struggle for agrarian reform in Brazil today, the build of the land rights as a human right.

Since the s, the interaction between peasant movements, the progressive church and the transnational network of human rights has converged into this idea that the land rights are a human right, which not only has marked the character of the struggle for land in Brazil, but has also influenced the way in which the human rights movement has been constructed in the country and how it has taken its place within the transnational network of human rights activism.

Saussure e o discurso: Uma abordagem discursiva da censura no Brasil em tempos de ditadura: Fazendo uso da palavra cantada, falou, apesar da censura. The article examines, in the light of the historical experience of the U. Addresses the tension between national security and civil liberties and how the Democrat did an option for safety, repeating the pattern of previous presidents. Verificou-se que a TI Verde pode ser mensurada: Between and the occurrence of murders increased continuously in the Northeast of Brazil, with all the states of the region except Pernambuco reporting expressive growth in this crime rate.

Foram feitos a soma dos investimentos anuais dos indicadores sociais de ambiente interno destas empresas, o quanto as empresas, investiram por ano, em seu ambiente interno. A literature review is conducted on the solitary pulmonary nodule, to determine the diagnostic methods and specific characteristics. The diagnostic methods used have been: The radiological features are defined: Los metodos de diagnostico utilizados han sido: Las caracteristicas radiologicas son definidas: The objective of this study was to analyze, on the national level, the process of.

As condutas adotadas foram: The aim was to describe the profile of postpartum women attended to at the physical therapy service in a public maternity house in Betim, MG, as well as the treatment they received. The study drew on a total of medical charts of postpartum women, contaning personal, clinic and physical therapy data. Most women were young, married, housewives, multiparous, and from Betim.

As to breast evaluation, most women had simetric and secretive breast, protruded nipples, few nipple traumas or breast-feeding difficulty having. Full Text Available The response to B in agricultural systems of sugar cane is still an unexplored issue; B application has however recently been widely publicized and used with a certain degree of frequency. The use of 10B-labeled fertilizers may further contribute to clarify this practice. The experiment consisted of the installation of microplots 2 x 1. The solution was applied to the soil on both sides of the plant row at a distance of 20 cm.

Foram comparados os dois grupos: Rectopexy is the most common technique used to correct rectal prolapse. Perineal procedures such as the Delorme technique and others are employed for older frail patients with significant comorbidity because of the higher recurrence rate. This study evaluated results of the Delorme technique and. To identify women's perceptions on men's participation in contraception. Home interviews in the southern region of the city of S.

Paulo, SP, Brazil, were carried out. The participant sample was of female users of reversible contraceptive methods, who claimed to have sexual partners at moment of the interview. Statistical analysis of the demographic variables and. This study estimates for the Brazilian fruit trees, mainly banana, orange, apple, melon and grape, the relative demand for chemicals, considering total expenses and quantity demanded for active principle per hectare, from to It is also established a comparative analysis among this demand with ones made by the main Brazilian crops soybean, maize, sugar cane and coffee, that are predominating in terms of grown area and dominating, in absolute terms, of chemicals total expenses and consume of active principle volume in Brazil.

Yet, determines, in absolute terms, the importance of fruit trees in chemicals total expenses and active principle consume, especially acaricides and fungicides. It concludes, about the importance of estimated relative demand for fruit trees, that it is higher than the ones by the mainly commercial crops in the country, offering indicators for the demand and market behavior to chemicals different classes by.

For this reason, we carried out a bibliographical investigation as well as a field research whose data were analyzed according to the quantitative and qualitative approaches. The results pointed out a balance in relation to the amount of women in management tasks. As concerns the use of information. A qualitative study was performed to: A structured form was used to collect social, economic, and demographic data.

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The content analysis technique was used for data analysis. The majority of couples opted for vasectomy as a last resort after attempting numerous other contraceptive methods, not always successfully.

Estudos anteriores por outros autores mostraram que as toxalbuminas de A. Quem ainda quer ser professor? Compreender esses rituais contribui para o oferecimento de cuidado de enfermagem culturalmente congruente. Full Text Available The aim of this study was to evaluate the efficiency of the postpartum bovine endometritis treatment by intrauterine and intramuscular administration of tetracycline.

Forty six cross bred cows diagnosed by gynecological exam with postpartum endometritis were assigned randomly in two treatments: The interval from treatment until first estrous was Although not to have had differences in the clinical recovery rate, the use of the oxitetracycline managed for way IU in the postpuerperal treatment of endometrites in cows revealed more efficient in the reduction of the interval between the treatment and first heat and first insemination, beyond presenting lower cost that the treatment with oxitetracycline managed for way IM KEY WORDS: Bovine, postpartum endometritis, intrauterine, intramuscular, oxitetracicline.

Considering that cooperation among enterprises contributes significantly to improve the product performance in a supply chain, this work presents a method for analyzing the enterprise cooperation focused on the exchange of information among firms. Two indicators are used: The measurement of the intensity and the extension indicators for each enterprise was carried out through a questionnaire that was answered by staff members of auto parts companies, and some relevant conclusions are presented. O artigo discute dois temas afins: In this paper two topics art adressed: The mecanism and treatment are discussed; 2 the cytotocic drug-induced lung diseases and their pulmonary reaction patterns.

Radiation, Cytotocic Drugs, Lymphocitic Alveolitis. The electrophoretic analysis of sera from guinea pigs was made with complement inactivated by ultraviolet radiations. It was found that the quantity of albumin changed, and an increase of the corresponding electrophoretic area of the globulins-alpha also took place, therefore, confirming the observations made previously that the fraction of the complement destroyed by ultraviolet radiations is its second component albumin fraction, C2.

Los hallazgos anormales fueron: To evaluate hearing of newborns with congenital toxoplasmosis identified by the newborn screening service. This prospective study analyzed children with congenital toxoplasmosis identified by newborn screening IgM anti. To evaluate the cosmetic and functional results of patients submitted to surgical correction of Congenital High Scapula Sprengel's Deformity using modified Green's Procedure, as well as patients' satisfaction and complications.

Nine patients submitted to surgical treatment from September to April have. The traditional methods of weed control in cultivated pasture do not meet society's present and future needs of protecting natural resources and life quality. An alternative to this problem could be the use of secondary metabolites produced by plants. These products present few risks to the environment and meet society interests. Therefore, this research was carried out to isolate, identify and characterize the allelopathic activity of. Turismo receptivo em Curitiba: The objective of this work was to evaluate the growth and physiological indexes of the melon crop in function of accumulated degree-days and to determine the relationship between the physiological index and yield of the crop in soil covered with plastic film in the colors black, silver, yellow, and brown, and of the uncovered soil as witness.

The relative growth rate for the number of leaves and leaf area index were influenced by soil cover and decreased with the development of the plant; the highestproductivity of marketable fruits was registered on plastic soil coverage. Full Text Available It is argued in this paper the possible alignment between scientific activities and technological research carried out by universities and the guidelines of public policies on science and technology in Brazil.

As a way of delimiting the field of analysis, without compromising the scope of this paper, we restricted our focus on the federal public universities in Minas Gerais State and we checked the possible convergence with the Industrial Policy and Foreign Trade PITCE.

Os principais resultados foram: Trata-se de um estudo descritivo, de natureza quanti-qualitativa, realizado por meio de pesquisa survey. While being a common resident of the upper respiratory tract, it is also a major cause of otitis media, pneumonia, bacteremia and meningitis, accounting for a high burden of morbidity and mortality worldwide. Recent findings demonstrate the importance of recombination and selection in driving the population dynamics and evolution of different pneumococcal lineages, allowing them to successfully evade the impacts of selective pressures such as vaccination and antibiotic treatment.

We highlight the ability of pneumococci to respond to these pressures through processes including serotype replacement, capsular switching and horizontal gene transfer HGT of antibiotic resistance genes. The challenge in controlling this pathogen also lies in the exceptional genetic and phenotypic variation among different pneumococcal lineages, particularly in terms of their pathogenicity and resistance to current therapeutic strategies.

The widespread use of pneumococcal conjugate vaccines, which target only a small subset of the more than 90 pneumococcal serotypes, provides us with a unique opportunity to elucidate how the processes of selection and recombination interact to generate a remarkable level of plasticity and heterogeneity in the pneumococcal genome. The application of population of genomic approaches at different spatial and temporal scales will help improve strategies to control this global pathogen, and potentially other pathogenic streptococci. Published by Elsevier B.

Within the genus Streptococcus , only Streptococcus thermophilus is used as a starter culture in food fermentations. Here we compare the genome sequence of the dairy isolate S. Despite the fact that the SBSEC species were found tightly related based on whole genome phylogeny of streptococci, two distinct patterns of evolution were identified among them. Streptococcus macedonicus, Streptococcus infantarius CJ18 and Streptococcus pasteurianus ATCC seem to have undergone reductive evolution resulting in significantly diminished genome sizes and increased percentages of potential pseudogenes when compared to Streptococcus gallolyticus subsp.

In addition, the three species seem to have lost genes for catabolizing complex plant carbohydrates and for detoxifying toxic substances previously linked to the ability of S. Analysis of the S. Unexpectedly, similar findings were. Streptococcus sinensis may react with Lancefield group F antiserum. Lancefield group F streptococci have been found almost exclusively as members of the ' Streptococcus milleri' group, although they have been reported very occasionally in some other streptococcal species.

All three patients had infective endocarditis complicating their underlying chronic rheumatic heart diseases. All three strains were Gram-positive, non-spore-forming cocci arranged in chains. All grew on sheep blood agar as alpha-haemolytic, grey colonies of 0. The present data revealed that a proportion of Lancefield group F streptococci could be S. Lancefield group F streptococci should not be automatically reported as 'S.

Serotype-specific mortality from invasive Streptococcus pneumoniae disease revisited. Case series and experimental data have shown that the capsular serotype is involved in the pathogenesis and a determinant of disease outcome. Retrospective review of cases of invasive disease among adults diagnosed Streptococcus mitis [MeCab user dictionary for science technology term[Archive. Lifescience Database Archive English. Population diversity and dynamics of Streptococcus mitis, Streptococcus oralis, and Streptococcus infantis in the upper respiratory tracts of adults, determined by a nonculture strategy.

A culture-independent method was used, based on cloning and sequencing of PCR amplicons of the housekeeping gene gdh, which shows remarkable, yet species-specific, genetic polymorphism. Samples were collected from all potential ecological niches in the oral cavity and pharynx of two adults on two occasions We reinvestigated the clonal diversity and dynamics of Streptococcus mitis and two other abundant members of the commensal microbiota of the upper respiratory tract, Streptococcus oralis and Streptococcus infantis, to obtain information about the origin of frequently emerging clones in this habitat These findings provide a platform for understanding the mechanisms that govern the balance within the complex microbiota at mucosal sites and between the microbiota and the mucosal immune system of the host Full Text Available Streptococcus dysgalactiae, Streptococcus uberis and Streptococcus agalactiae are the three main pathogens causing bovine mastitis, with great losses to the dairy industry.

Rapid and specific loop-mediated isothermal amplification methods LAMP for identification and differentiation of these three pathogens are not available. The detection limit of all four LAMP primer sets were 0. Streptococcus dysgalactiae, Streptococcus uberis and Streptococcus agalactiae are the three main pathogens causing bovine mastitis, with great losses to the dairy industry. Impedance cardiography ICG is a non-invasive technique that allows a rapid, continuous and reproducible beat-to-beat cardiac output estimation. This technique measures thoracic electrical resistance changes produced by variations in the blood volume in the aorta during the cardiac cycle.

Continuous measurement of impedance changes or fluctuations of blood volume during systole and diastole allow the determination of stroke volume, cardiac output, myocardial contractility, and total thoracic fluid content. Between the advantages of. To determine the occurrence of cardiorespiratory alterations and to identify adverse events during the intrahospital transport of patients on invasive ventilation. A prospective observational non-randomized study was conducted at two tertiary hospitals between April of and December of We included patients on invasive ventilation who required intrahospital transport during the study period.

Exclusion criteria were as follows: Streptococcus pyogenes pharyngeal colonization resulting in recurrent, prepubertal vulvovaginitis. Recurrent, prepubertal, vaginal infections are an uncommon, troublesome problem for the patient and her family. Failure of initial therapy to alleviate vulvovaginitis may be related to vulvar skin disease, foreign body, sexual abuse, pinworms, reactions to medications, anatomic anomalies, or allergies. This report describes a case of recurrent Streptococcus pyogenes vulvovaginitis secondary to presumed vaginal re-inoculation from pharyngeal colonization.

A 4-yr-old presented with one year of culture proven, recurrent Streptococcus pyogenes vulvovaginitis. Her symptoms repeatedly resolved with penicillin therapy, but continued to recur following cessation of antibiotic therapy. Evaluation included physical examination, trans-abdominal pelvic ultrasound, and vaginoscopy which all revealed normal upper and lower genital tract anatomy. Both the patient and her mother demonstrated culture proven, Group A Streptococcus pharyngeal colonization. Because of the possibility of repeated inoculations of the vaginal area from the colonized pharynx, they were both treated for decolonization with a regimen of amoxicillin and rifampin for ten days.

Following this therapy there was resolution of vaginal symptoms with no further recurrence. Follow-up pharyngeal culture done on both mother and child on their last visit were negative for Group A Streptococcus. This case demonstrated an unusual specific cause of recurrent vaginitis resulting from presumed self or maternal re-inoculation with group A beta-hemolytic streptococcus from pharyngeal colonization. Thus initial alleviation of symptoms in a patient with Group A beta-hemolytic vulvovaginitis treated with penicillin, can have continued asymptomatic pharyngeal colonization which can result in recurrence of the.

To evaluate laboratorial findings of Streptococcus keratitis and conjunctivitis, analyzing the different species and the results of bacterial susceptibility to an antibiotics. The collected data were age, Streptococcus species and the bacterial susceptibility to the following antibiotics: The most frequent species were Streptococcus pneumoniae and Streptococcus viridans. Comparing the cariogenic species Streptococcus sobrinus and S. Two closely related species of mutans streptococci, namely Streptococcus mutans and Streptococcus sobrinus, are associated with dental caries in humans.

Their acidogenic and aciduric capacity is directly associated with the cariogenic potential of these bacteria. To survive acidic and. Molecular and mathematical epidemiology of Staphylococcus aureus and Streptococcus uberis mastitis in dairy herds. Mastitis is the most common and costly production disease affecting dairy cows. Staphylococcus aureus and Streptococcus uberis are two major mastitis-causing pathogens. Staphylococcus aureus is traditionally classified as contagious pathogen, while Streptococcus uberis is classified as environmental.

Capsular typing of Streptococcus agalactiae Lancefield group B streptococci from fish using multiplex PCR and serotyping. This study evaluated a published multiplex PCR capsul Ornithine transport and exchange in Streptococcus lactis. Resting cells of Streptococcus lactis appeared to accumulate [ 14 C]ornithine to a high concentration in the absence of an exogenous energy source.

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However, analysis of intracellular amino acid pool constituents and results of transport experiments revealed that the accumulation of ornithine represented a homoexchange between extracellular [ 14 C]ornithine and unlabeled ornithine in the cell. The energy-independent exchange of ornithine was not inhibited by proton-conducting uncouplers or by metabolic inhibitors. Intracellular [ 14 C]ornithine was retained by resting cells after suspension in a buffered medium. However, addition of unlabeled ornithine to the suspension elicited rapid exit of labeled amino acid.

The initial rate of exist of [ 14 C]ornithine was dependent on the concentration of unlabeled ornithine in the medium, but this accelerative exchange diffusion process caused no net loss of amino acid. By contrast, the presence of a fermentable energy source caused a rapid expulsion of and new decrease in the concentration of intracellular ornithine. Kinetic analyses of amino acid transport demonstrated competitive inhibition between lysine and ornithine, and data obtained by two-dimensional thin-layer chromatography established the heteroexchange of these basic amino acids.

The effects of amino acids and of ornithine analogs on both entry and exit of [ 14 C]ornithine have been examined. The data suggest that common carrier mediates the entry and exchange of lysine, arginine, and ornithine in cells of S.

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Ecology and pathogenicity of gastrointestinal Streptococcus bovis. Streptococcus bovis is an indigenous resident in the gastrointestinal tracts of both humans and animals. Certain feeding regimens in ruminants can lead to overgrowth of S. There are multiple strategies in controlling acute lactic acidosis and bloat. The incidence of the two diseases may be controlled by strict dietary management. Gradual introduction of grain-based diets and the feeding of coarsely chopped roughage decrease the incidence of the two disease entities. Ionophores, which have been used to enhance feed conversion and growth rate in cattle, have been shown to inhibit the growth of lactic acid bacteria in the rumen.

Other methods of controlling lactic acid bacteria in the ruminal environment dietary supplementation of long-chain fatty acids, induction of passive and active immune responses to the bacteria, and the use of lytic bacteriophages have also been investigated. It is anticipated that through continued in-depth ecological analysis of S. Peptide pheromone signaling in Streptococcus and Enterococcus. Intercellular chemical signaling in bacteria, commonly referred to as quorum sensing QS , relies on the production and detection of compounds known as pheromones to elicit coordinated responses among members of a community.

Pheromones produced by Gram-positive bacteria are comprised of small peptides. Based on both peptide structure and sensory system architectures, Gram-positive bacterial signaling pathways may be classified into one of four groups with a defining hallmark: The recent discovery that Rgg family members respond to peptide pheromones increases substantially the number of species in which QS is likely a key regulatory component. These pathways control a variety of fundamental behaviors including conjugation, natural competence for transformation, biofilm development, and virulence factor regulation.

Overlapping QS pathways found in multiple species and pathways that utilize conserved peptide pheromones provide opportunities for interspecies communication. Here we review pheromone signaling identified in the genera Enterococcus and Streptococcus , providing examples of all four types of pathways. Efflux inhibitor suppresses Streptococcus mutans virulence properties. It is well established that efflux pumps play important roles in bacterial pathogenicity and efflux inhibitors EIs have been proved to be effective in suppressing bacterial virulence properties.

However, little is known regarding the EI of Streptococcus mutans, a well-known caries-inducing bacterium. In this study, we identified the EI of S. Results indicated that reserpine, the identified EI, suppressed acid tolerance, mutacin production and transformation efficiency of S.

Suppressed glycosyltransferase activity was also noted after reserpine exposure. The data from quantitative real-time-PCR demonstrated that reserpine significantly altered the expression profile of quorum-sensing and virulence-associated genes. These findings suggest that reserpine represents a promising adjunct anticariogenic agent in that it suppresses virulence properties of S.

For permissions, please e-mail: Lactam inhibiting Streptococcus mutans growth on titanium. The aim of this work was to analyze the activity of novel synthetic lactams on preventing biofilm formation on titanium surfaces. Titanium Ti6Al4V samples were exposed to Streptococcus mutans cultures in the presence or absence of a synthetic lactam. After 48 h incubation, planktonic growth was determined by spectrophotometry. Results showed that the average of adhered viable cells was approximately 1. This novel compound was considerable active in reducing biofilm formation over titanium surfaces, indicating its potential for the development of antimicrobial drugs targeting the inhibition of the initial stages of bacterial biofilms on dental implants abutments.

Genome of the opportunistic pathogen Streptococcus sanguinis. The genome of Streptococcus sanguinis is a circular DNA molecule consisting of 2,, bp and is to kb larger than the other 21 streptococcal genomes that have been sequenced. A kb region encoding pathways for vitamin B 12 biosynthesis and degradation of ethanolamine and propanediol was apparently acquired by horizontal gene transfer. The gene complement suggests new hypotheses for the pathogenesis and virulence of S. Sorption of streptococcus faecium to glass. A method has been developed by which to study the sorption of Streptococcus faecium to soda-lime cover glasses.

Conditions were chosen to minimize the influence on sorption of bacterial polymer production, passive sorption being studied rather than attachment mediated by metabolic activities. Sorption increased with solute molarity up to 0. Desorption of bacteria could be obtained after multiple washings of the glasses in buffer or by the action of Tween 80, but not if sorbed bacteria were left in distilled water, various salt solutions, urea, or in suspensions of unlabelled bacteria. It was concluded that sorption occurred as a result of chemical interactions between the glass and the cell surface.

Tween 80 at a concentration of 1 per cent inhibited sorption to 26 per cent of buffer controls, 2 M urea was less effective, and 1 M NaCl was without effect. It is suggested that hydrophobic interactions may be of importance in the binding of S. Tooth decay is an infectious disease of microbial origin. Considering the increasing prevalence of antibiotic resistance due to their overuse and also their side effects, medicinal plants are now considered for use against bacterial infections. This study aimed to assess the effects of different concentrations of Zingiber officinale extract on proliferation of Streptococcus mutans and Streptococcus sanguinis in vitro.

In this experimental study, serial dilutions of the extract were prepared in two sets of 10 test tubes for each bacterium total of The mixture was transferred to the plates. The bacteria were inoculated on plates and incubated as described. The minimum inhibitory concentration MIC was 0. The minimum bactericidal concentration MBC was 0. Zingiber officinale extract has significant antibacterial activity against S. Full Text Available Background and Objectives. Interactions between oral bacteria: The inhibition of S.

Using transposon Tn mutagenesis, we identified a gene sgc; named for Streptococcus gordonii challisin responsible for the inhibition of S. Interruption of the sgc gene in S. The supernatant fluids from the sgc mutant did not inactivate the exogenous S. Inhibitory effects of antiseptic mouthrinses on Streptococcus mutans, Streptococcus sanguinis and Lactobacillus acidophilus.

Oral antiseptics are valuable in controlling oral infections caused by cariogenic bacteria. The aim of this study was to investigate the effects of mouthrinses and pure antiseptic compounds on Streptococcus mutans and non-mutans bacteria Streptococcus sanguinis and Lactobacillus acidophilus. The agar diffusion assay was employed to determine bacterial growth inhibition. Commercial mouthrinses containing chlorhexidine gluconate 0.

The chlorhexidine mouthwash produced the greatest mean growth inhibition of S. In-vitro efficacy of different morphology zinc oxide nanopowders on Streptococcus sobrinus and Streptococcus mutans. ZnO with two different morphologies were used to study the inhibition of Streptococcus sobrinus and Streptococcus mutans which are closely associated with tooth cavity. PL spectra showed ion vacancy defects related to green and red luminescence for both ZnO particles. These defects evolved during the generation of reactive oxygen species which contributed to the antibacterial activity.

Antibacterial activity was investigated using microdilution technique towards S. However, we observed subtle differences in genomic islands and prophages between the species. Comparative pathogenomics analysis identified S. On the contrary, genomic islands of S. Two distinct polysaccharide locus architectures were identified, one of which was exclusively present in S. This study provides new insights into the genetic distinctions between S. Organization of the capsule biosynthesis gene locus of the oral streptococcus Streptococcus anginosus.

The capsular polysaccharide CPS of the important oral streptococcus Streptococcus anginosus, which causes endocarditis, and the genes for its synthesis have not been clarified. In this study, we investigated the gene locus required for CPS synthesis in S.

Southern hybridization using the cpsE gene of the well-characterized bacterium S. This gene cluster consisted of genes containing typical regulatory genes, cpsA-D, and glycosyltransferase genes coding for glucose, rhamnose, N-acetylgalactosamine, and galactofuranose transferases. Furthermore, we confirmed that the cps locus is required for CPS synthesis using a mutant strain with a defective cpsE gene. The cps cluster was found to be located downstream the nrdG gene, which encodes ribonucleoside triphosphate reductase activator, as is the case in other oral streptococci such as S.

However, the location of the gene cluster was different from those of S. Aciduricity and acid tolerance mechanisms of Streptococcus anginosus. Although Streptococcus anginosus constitutes a proportion of the normal flora of the gastrointestinal and genital tracts, and the oral cavity, it has been reported that S. The colonization in an acidic environment due to the aciduricity of S. To elucidate the aciduricity and acid tolerance mechanisms of the microbe, we examined the viability and growth of S. The viabilities of S. These results suggest that S.

Lung abscess caused by Streptococcus pneumoniae serotype 6B. Full Text Available Lung abscess has been considered to be a rare complication of pneumococcal infection, and most cases are reported to be Streptococcus pneumoniae serotype 3. A year-old man presented with fever and was diagnosed to have lung abscess caused by S.

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Chlorophyll mediated photodynamic inactivation of blue laser on Streptococcus mutans. Photodynamic inactivation is an inactivation method in microbial pathogens that utilize light and photosensitizer. This study was conducted to investigate photodynamic inactivation effects of low intensity laser exposure with various dose energy on Streptococcus mutans bacteria.

The photodynamic inactivation was achieved with the addition of chlorophyll as photosensitizers. To determine the survival percentage of Streptococcus mutans bacteria after laser exposure, the total plate count method was used. For this study, the wavelength of the laser is nm and variables of energy doses are 1.

The results show that exposure to laser with energy dose of 7. Streptococcus pneumoniae necrotizing fasciitis in systemic lupus erythematosus. Necrotizing fasciitis is a rapidly progressive destructive soft tissue infection with high mortality. Streptococcus pneumoniae as etiologic agent of necrotizing fasciitis is extremely unusual. The increased susceptibility to Streptococcus pneumoniae infection in patients with systemic lupus erythematosus is probably a multifactorial phenomenon.

We report a case of a patient, a year-old Caucasian female with 8-year history of systemic lupus erythematosus who presented a fatal Streptococcus pneumoniae necrotizing fasciitis. The role of computed tomography and the high performance of blood cultures for isolation of the causative microorganism are emphasized. Once diagnosis is suspected, empiric antibiotic treatment must be prescribed and prompt surgical exploration is mandatory.

Functional amyloid formation by Streptococcus mutans. Dental caries is a common infectious disease associated with acidogenic and aciduric bacteria, including Streptococcus mutans. Organisms that cause cavities form recalcitrant biofilms, generate acids from dietary sugars and tolerate acid end products. It has recently been recognized that micro-organisms can produce functional amyloids that are integral to biofilm development. We now show that the S. This conclusion is based on the defining properties of amyloids, including binding by the amyloidophilic dyes Congo red CR and Thioflavin T ThT , visualization of amyloid fibres by transmission electron microscopy and the green birefringent properties of CR-stained protein aggregates when viewed under cross-polarized light.

We provide evidence that amyloid is present in human dental plaque and is produced by both laboratory strains and clinical isolates of S. We provide further evidence that amyloid formation is not limited to P1, since bacterial colonies without this adhesin demonstrate residual green birefringence.

Biofilm formation is inhibited when S. Taken together, these results indicate that S. Effect of irradiation on the streptococcus mutans. To observe direct effect of irradiation on cariogenic Streptococcus mutans. Viability and changes in antibiotic sensitivity, morphology, transcription of virulence factors, and protein profile of bacterium after irradiation were examined by pour plate, disc diffusion method, Transmission electron microscopy.

After irradiation with 10 and 20 Gy, viability of S. Further increase in irradiation dose, however, did not affect the viability of the remaining cells of S. In particular, the bacterium irradiated with 40 Gy increased its susceptibility to cefotaxime, penicillin, and tetracycline. Under the transmission electron microscope, number of morphologically abnormal cells was increased as the irradiation dose was increased. As irradiation dose was increased. These results suggest that irradiation affects the cell integrity of S.

Thermoregulation of Capsule Production by Streptococcus pyogenes. The capsule of Streptococcus pyogenes serves as an adhesin as well as an anti-phagocytic factor by binding to CD44 on keratinocytes of the pharyngeal mucosa and the skin, the main entry sites of the pathogen. We discovered that S.

When the transcription of the hasABC capsular biosynthetic locus was de-repressed through mutation of the covRS system, the two strains, which have been used for pathogenesis studies in the laboratory, exhibited markedly increased capsule production at sub-body temperature. Employing transposon mutagenesis, we found that CvfA, a previously identified membrane-associated endoribonuclease, is required for the thermoregulation of capsule synthesis.

The mutation of the cvfA gene conferred increased capsule production regardless of temperature. However, the amount of the capsule transcript was not changed by the mutation, indicating that a post-transcriptional regulator mediates between CvfA and thermoregulated capsule production. As expected, the mucoid phenotype of these strains at sub-body temperature was due to mutations within the chromosomal covRS genes. Capsule thermoregulation that exhibits high capsule production at lower temperatures that occur on the skin or mucosal surface potentially confers better capability of adhesion and invasion when S.

Whole genome shotgun sequencing of Indian strains of Streptococcus agalactiae. Full Text Available Group B streptococcus is known as a leading cause of neonatal infections in developing countries. Molecular data on clonality is lacking for GBS in India. The present genome report will add important information on the scarce genome data of GBS and will help in deriving comparative genome studies of GBS isolates at global level. Streptococcus equi subsp zooepidemicus Invades and Survives in Epithelial Cells. Michael; Nguyen, Scott V. Streptococcus pyogenes group A streptococcus ; GAS is a strict human pathogen with a very high prevalence worldwide.

This review highlights the genetic organization of the species and the important ecological considerations that impact its evolution. Recent advances are presented on the topics of molecular epidemiology, population biology, molecular basis for genetic change, genome structure and genetic flux, phylogenomics and closely related streptococcal species, and the long- and short-term evolution of GAS.

The application of whole genome sequence data to addressing key biological questions is discussed. Streptococcus gordonii ATCC T was isolated from a patient with infective endocarditis in and announced as a type strain in Here, we report the 2,,bp draft genome sequence of S. This sequence will contribute to knowledge about the pathogenesis of infect This sequence will contribute to knowledge about the pathogenesis Antibacterial activity of Bixa orellana L.

To evaluate the cytotoxic and antibacterial effect of Bixa orellana L. Two methanol extracts of B. The antibacterial activity of extracts against S. The minimum inhibitory concen-tration MIC was determined using the microdilution method and the cytotoxic activity was determinated by using the cell line MDCK.

A stronger antibacterial effect was observed with the leaves methanolic extract with an inhibition zone of The methanolic extract of the seeds had an activity of The MIC of the leaf and the seed extracts against S. The experimental findings demonstrated the antibacterial effect of the methanolic extract of B.

The extract of this plant is cytotoxic at high concentrations. Antibacterial activity of Myrciaria dubia Camu camu against Streptococcus mutans and Streptococcus sanguinis. To evaluate the antibacterial and cytotoxic effect of Myrciaria dubia Camu camu M. Two methanol extracts of M. Ten independent tests were prepared for each type of extract, using 0. Mean-while, the minimum inhibitory concentration and the cytotoxic effect over MDCK cell line was found.

A higher antibacterial effect was observed with the methanol seed extract with an inhibitory halo of The methanol extract of the pulp had an effect of The minimum inhibitory concentration of the pulp extract was The experimental findings demonstrated the antibacterial effect of the methanol extract of M.

These extracts were not cytotoxic at high concentrations. Full Text Available The capsular polysaccharide CPS represents a key virulence factor for most encapsulated streptococci. It is still unclear how sialic acid may affect CPS production and, consequently, the pathogenesis of the disease caused by these two bacterial pathogens. Here, we investigated the role of sialic acid and the putative effect of sialic acid linkage modification in CPS synthesis using inter-species allelic exchange mutagenesis.

To this aim, a new molecular biogenetic approach to express CPS with modified sialic acid linkage was developed. It was demonstrated that the observed differences in sialyltransferase activity and specificity between S. This is the first time that a study investigates the interspecies exchange of capsular sialyltransferase genes in Gram-positive bacteria. The obtained mutants represent novel tools that could be used to further investigate the immunomodulatory properties of sialylated CPSs. Finally, in spite of common CPS structural characteristics and similarities in the cps loci, sialic acid exerts.

In silico analysis of the competition between Streptococcus sanguinis and Streptococcus mutans in the dental biofilm. During dental caries, the dental biofilm modifies the composition of the hundreds of involved bacterial species. Changing environmental conditions influence competition. A pertinent model to exemplify the complex interplay of the microorganisms in the human dental biofilm is the competition between Streptococcus sanguinis and Streptococcus mutans. It has been reported that children and adults harbor greater numbers of S. Competition between both microorganisms stems from the production of H 2 O 2 by S.

There is limited evidence on how S. Results indicated that S. Previous studies showed that Streptococcus oligofermentans, a non-mutans streptococci frequently isolated from caries-free subjects, inhibited the cariogenic Streptococcus mutans by the production of hydrogen peroxide HP. Since pH is a critical factor in caries formation, we aimed to study the influence of pH on the competition between S. To this end, S. The single- and dual-species biofilms were grown under either constantly neutral pH or pH-cycling conditions. The latter includes two cycles of 8 h neutral pH and 16 h pH 5.

The 48 h biofilms were analysed for the viable cell counts, lactate and HP production. The results showed that S. The lactic acid production of dual-species biofilms was significantly lower than that of single-species S. Moreover, dual-species and single-species S. Antibiotic susceptibility of periodontal Streptococcus constellatus and Streptococcus intermedius clinical isolates. Because systemic antibiotics are often used in these clinical situations, and little is known of the antibiotic susceptibility of subgingival isolates of these two bacterial species, this study determined the in vitro susceptibility to six antibiotics of fresh S.

A total of 33 S. Clinical and Laboratory Standards Institute and European Committee on Antimicrobial Susceptibility Testing interpretative standards were used to assess the results. Clindamycin was the most active antibiotic against S. The novel species Streptococcus tigurinus and its association with oral infection. Streptococcus tigurinus is a novel species of viridans streptococci, shown to cause severe invasive infections such as infective endocarditis, spondylodiscitis and meningitis. The presence of S. This review addresses the available scientific knowledge on S.

While there is as yet no strong evidence on the involvement of S. Os que apresentaram pior resultado foram a capacidade de levantamento de pesos e a dor ao sentar. Dental caries is a chronic infectious disease that needs at least four components to develop. As a susceptible host, a pathogenic microbiota, a high-sucrose diet and time. This work assess the relationships between Streptococcus mutans and dental plaque; Streptococcus mutans and IgA antibodies in children with and without caries experience.

The results obtained have not shown any correlations between colony forming units of S. A significant correlation was found between bacterial plaque index and specific IgA in children with carious lesions. Streptococcus sanguinis Class Ib Ribonucleotide Reductase. Makhlynets, Olga; Boal, Amie K. Streptococcus sanguinis is a causative agent of infective endocarditis.

Deletion of SsaB, a manganese transporter, drastically reduces S. The proteins required for S. X-ray structures of S. These streptococcal proteins form a structurally distinct subclass relative to other Ib proteins with unique features likely important in cluster assembly, including a long and negatively charged loop near the NrdI flavin and a bulky residue Thr at a constriction in the oxidant channel to the NrdI interface. These studies set the stage for identifying the active form of S.

Detection of Streptococcus iniae and Lactococcus garvieae by Accepted 27 October, Streptococcosis is one of the most important bacterial diseases in farmed salmonid fishes. A total of 50 fish samples Diagnosis of bacterial endocarditis caused by Streptococcus lactis Peritonitis in a llama caused by Streptococcus equi subsp. A 7-month-old, male llama was diagnosed with peritonitis caused by Streptococcus equi subsp.

Clinical findings, medical treatment, and case outcome are described. Hematogenous dissemination from suspected pneumonia is proposed as the route of infection in this case. Possible transmission of the organism through contact with horses is discussed. Adolescentes em conflito com a lei. Cien Saude Colet ; 12 5: Psicol Soc ; 26 n spe: J Bras Psiquiatr ; 61 4: Pacheco AL, Scisleski A.

Psicol Soc ; 25 n spe: Psicol Soc ; 26 n esp: Psicol Soc ; 26 3: Psicol Soc ; 23 1: Cien Saude Colet ; 16 7: Physis ; 24 1: Raupp L, Milnitsky-Sapiro C. Teor e Pesq ; 24 3: Universidade Estadual de Campinas;