ABSTRACT Primary progressive aphasia comprises a group of neurodegenerative diseases characterized by progressive speech and language dysfunction. Neuroimaging (structural and functional), biomarkers, and neuropsychological assessments allow for early diagnosis. However, there is no pharmacological treatment for the disease. Speech and language therapy is the main rehabilitation strategy. In this case report, we describe a female patient diagnosed with nonfluent primary progressive aphasia who underwent sessions of high-frequency transcranial magnetic stimulation in the left dorsolateral prefrontal cortex and showed improvement in depression scores, naming tasks in oral and written speech, and comprehension tasks in oral and written discourse.

RESUMO As afasias progressivas primárias (APP) representam um grupo de doenças neurodegenerativas caracterizadas por disfunção progressiva da fala e da linguagem. A neuroimagem (estrutural e funcional), os biomarcadores e as avaliações neuropsicológicas permitem o diagnóstico precoce. No entanto, não há tratamento farmacológico para a doença. A terapia fonoaudiológica é a principal estratégia de reabilitação. Neste relato de caso, descrevemos uma paciente com diagnóstico de APP não fluente que foi submetida a sessões de estimulação magnética transcraniana de alta frequência no córtex pré-frontal dorsolateral esquerdo e apresentou melhora nos escores de depressão, nas tarefas de nomeação da fala oral e escrita e nas tarefas de compreensão da fala oral e escrita.

Resumo No Brasil, as políticas sobre drogas passaram por modificações ao longo do tempo, carregando marcas de cada período histórico e interesse sanitário-político. Na atual conjuntura, por exemplo, há uma tendência de oposição aos ideais do movimento de reforma psiquiátrica. Nesse contexto, este artigo objetiva analisar os elementos-chave evidenciados a partir do estudo de um documento normativo sobre drogas, na perspectiva da análise de discurso crítica. Realizou-se a análise da Lei no 13.840, de 2019, conforme o modelo tridimensional de Fairclough, com discussão a partir dos conceitos de biopoder e biopolítica de Foucault. A ênfase no tratamento pautado pela internação involuntária, comunidade terapêutica e abstinência reproduz uma perspectiva asilar de tratamento. Observa-se, assim, a reprodução de concepções asilar, proibicionista e autoritária, justificadas sob um véu de neutralidade ideológica e evidências científicas, que corroboram a existência de um movimento antirreformista.

Abstract Brazilian drug policies have undergone changes over time, bearing marks for each historical period and experienced sanitary-political interests. Nowadays, an anti-reformist character was perceived in changes concentrated on Law no. 13,840, of June 5, 2019. The aim of this study is to analyze the key elements of a normative document on drugs based on the Critical Discourse Analysis. We analyzed the Law no. 13,840 using Fairclough’s method for three-dimensional analysis and then discussed it with Foucault’s notions of Biopower and Biopolitics. We consider that the emphasis on involuntary hospitalization, therapeutic communities and abstinence opposes the Brazilian psychiatric reform movement. The development of oppressive care practices are hidden by the so-called ideological neutrality and scientific evidence.

Resumo No Brasil, as políticas sobre drogas passaram por modificações ao longo do tempo, carregando marcas de cada período histórico e interesse sanitário-político. Na atual conjuntura, por exemplo, há uma tendência de oposição aos ideais do movimento de reforma psiquiátrica. Nesse contexto, este artigo objetiva analisar os elementos-chave evidenciados a partir do estudo de um documento normativo sobre drogas, na perspectiva da análise de discurso crítica. Realizou-se a análise da Lei no 13.840, de 2019, conforme o modelo tridimensional de Fairclough, com discussão a partir dos conceitos de biopoder e biopolítica de Foucault. A ênfase no tratamento pautado pela internação involuntária, comunidade terapêutica e abstinência reproduz uma perspectiva asilar de tratamento. Observa-se, assim, a reprodução de concepções asilar, proibicionista e autoritária, justificadas sob um véu de neutralidade ideológica e evidências científicas, que corroboram a existência de um movimento antirreformista.

Abstract Brazilian drug policies have undergone changes over time, bearing marks for each historical period and experienced sanitary-political interests. Nowadays, an anti-reformist character was perceived in changes concentrated on Law no. 13,840, of June 5, 2019. The aim of this study is to analyze the key elements of a normative document on drugs based on the Critical Discourse Analysis. We analyzed the Law no. 13,840 using Fairclough’s method for three-dimensional analysis and then discussed it with Foucault’s notions of Biopower and Biopolitics. We consider that the emphasis on involuntary hospitalization, therapeutic communities and abstinence opposes the Brazilian psychiatric reform movement. The development of oppressive care practices are hidden by the so-called ideological neutrality and scientific evidence.

ABSTRACT Purpose: To evaluate efficacy of urorectal fistula (URF) repair using different approaches and the clinical factor determinant of success, and also the morbidity associated to the procedure and health-related quality of life (HRQoL) in male survivors of pelvic malignancies. Material and Methods: Retrospective evaluation of 39 patients with URF primarily intervened in three institutions using different surgical approaches. Success was defined as effective fistula closure. Variables evaluated included demographics, previous treatments, surgical approach, ancillary surgeries, complications and HRQoL by using a standardized non-validated specific questionnaire. Median follow-up from surgery to interview was 55 months (interquartile range 49, range 4-112). Factors determinant of success were investigated using logistic regression. Safety of the procedure was evaluated by Clavien-Dindo scale. Deterioration of continence and erectile function and other HRQoL issues were evaluated. Results: Prostate cancer treatment was the predominant etiology. The success rate for fistula repair was 89.5%. The surgical approach was not related to failed repair (p=0.35) or complications (p=0.29). Factors associated with failure were complications (p=0.025), radiotherapy (p=0.03), fistula location (p=0.04) and fistula size (p=0.007). Multivariate analysis revealed fistula size was the only independent determinant of failure (OR 6.904, 1.01-47.75). Complications occurred in 46.2% and severe complications in 12.8%. The mortality related to the procedure was 2.6%. Urinary incontinence was present before repair in 26.3% and erectile dysfunction in 89.5%. Fistula repair caused de novo urinary incontinence in 7.9% and deterioration of erectile status in 44.7%. Globally 79% were satisfied after repair and only 7.9% rated HRQoL as unhappy. Trans-sphincteric approach was related to less deterioration of erectile function (p=0.003), and higher perceived satisfaction in QoL (p=0.04). Conclusions: The surgical approach elected to correct URF is not determinant of success nor of complications. Fistula size appears as independent determinant for failure. Transsphincteric approach could be advantageous over other procedures regarding HRQoL issues.

The purpose of this article is to compare the evolution of COVID-19 in Manaus and Fortaleza, two epicenters of the pandemic in 2020, analyzing legal measures by local governments and levels of social isolation. An algorithm was defined to calculate the Homestay Index (HSI), using data from the Google Mobility Report. The Decree's timeline, the HSI evolution, the incidence of COVID-19 and the number of deaths from March/2020 to January/2021 were analyzed. The population of Fortaleza was exposed to more consistent measures of social distance, than those of Manaus. Longer homestay was observed from March to May 2020 and Fortaleza achieved higher and more lasting levels. As of June 2020, the HSI fell, notably in Manaus, reaching levels below zero in late December. As an aggravating factor, the government decreed ample isolation in Manaus on December 23/2020, but after protests, it repeals it on December 26/2020. A Judicial Decision determines the complete closure in Manaus on January 02/2021, but it was too late: SUS collapses with an exponential increase in deaths. In Fortaleza, the demand for health services is high, but under control. We consider that only the strict application of non-pharmacological measures and mass immunization can prevent further deaths.

O objetivo desse artigo é comparar o comportamento do COVID-19 em Manaus e Fortaleza, dois epicentros da pandemia em 2020, analisando medidas legais dos governos locais e níveis de isolamento social. Definiu-se um algoritmo para calcular o Índice de Permanência Domiciliar (IPD), com dados do Google Mobility Report. Analisou-se a linha do tempo dos Decretos, a evolução do IPD, da incidência de COVID-19 e do número de óbitos de março / 2020 a janeiro / 2021. A população de Fortaleza esteve exposta a medidas de distanciamento social mais consistentes que as de Manaus. Maior permanência domiciliar foi observada de março a maio de 2020 e Fortaleza atingiu níveis mais elevados e duradouros. A partir de junho o IPD caiu, sobretudo em Manaus, atingindo níveis abaixo de zero no final de dezembro. Como agravante, o governo decreta amplo isolamento em Manaus em 23/12/2020, mas após protestos, revoga-o em 26/12/2020. Uma Decisão Judicial determina o fechamento completo em Manaus em 01/02/2021, mas foi tarde demais: o SUS entra em colapso com aumento exponencial dos óbitos. Em Fortaleza a demanda por serviços de saúde está elevada, mas sob controle.

RESUMO Objetivou-se comparar o comportamento da Covid-19 em Manaus e Fortaleza, dois epicentros da pandemia em 2020, analisando medidas legais dos governos locais e níveis de isolamento social. Definiu-se um algoritmo para calcular o Índice de Permanência Domiciliar (IPD), com dados do Google Mobility Report. Analisaram-se a linha do tempo dos decretos, a evolução do IPD, da incidência de Covid-19 e do número de óbitos de março/2020 a janeiro/2021. A população de Fortaleza esteve exposta a medidas de distanciamento social mais consistentes que as de Manaus. Foi observado, de março a maio de 2020, uma maior permanência domiciliar, e Fortaleza atingiu níveis mais elevados e duradouros. A partir de junho, o IPD caiu, sobretudo em Manaus, atingindo níveis abaixo de zero no final de dezembro. Devido a isso, o governo decretou amplo isolamento em Manaus em 23/12/2020, mas após protestos, revogou-o em 26/12/2020. Uma decisão judicial determinava o fechamento completo em Manaus em 02/01/2021, mas foi tarde demais: o SUS entrou em colapso com aumento exponencial dos óbitos. Em Fortaleza, a demanda aos serviços de saúde estava elevada, mas sob controle. Considerou-se que somente a aplicação rigorosa de medidas não farmacológicas e imunização em massa poderiam evitar mais mortes.

ABSTRACT This article aims to compare the evolution of Covid-19 in Manaus and Fortaleza, two epicenters of the pandemic in 2020, analyzing legal measures by local governments and levels of social isolation. An algorithm was defined to calculate the Homestay Index (HSI), using data from the Google Mobility Report. We analyzed the decree’s timeline, the HSI evolution, the Covid-19 incidence and the number of deaths from March/2020 to January/2021. The population of Fortaleza was exposed to more consistent measures of social distancing than that of Manaus. Longer homestay was observed from March to May 2020 and Fortaleza achieved higher and more lasting levels. As of June 2020, the HSI fell, notably in Manaus, reaching levels below zero in late December. As an aggravating factor, the government decreed broad isolation in Manaus on December 23, 2020, but after protests it was repealed on December 26, 2020. A judicial decision determined the complete closure in Manaus on January 2nd 2021, but it was too late: the SUS collapsed with an exponential increase in deaths. In Fortaleza, the demand for health services was high, but under control. We consider that only the strict application of non-pharmacological measures and mass immunization can prevent further deaths.

RESUMO Objetivou-se investigar os fluxos de internações por Covid-19 nas 450 regiões e 117 macrorregiões de saúde brasileiras, de março a outubro de 2020. Realizou-se estudo descritivo, compreendendo todas as internações por Covid-19 registradas no Sistema de Informação de Vigilância Epidemiológica da Gripe entre a 8ª e a 44ª semanas epidemiológicas de 2020. Identificaram-se 397.830 internações por Covid-19 no Brasil. A evasão foi de 11,9% dos residentes nas regiões de saúde e de 6,8% nas macrorregiões; padrão que se manteve no período de pico das internações por Covid-19. Houve, em média, 17,6% de evasão dos residentes das regiões de saúde do Nordeste e de 8,8% das do Sul. A evasão foi mais acentuada nas regiões de saúde com até 100 mil/hab. (36,9%), a qual foi 7 vezes maior que a verificada naquelas com mais de 2 milhões/habitantes (5,2%). O indicador de eficácia migratória negativo (-0,39) indicou predomínio da evasão. Das 450 regiões de saúde brasileiras, 117 (39,3%) apresentaram coeficiente de eficácia migratória entre-1 e-0,75; e 113 (25,1%), entre-0,75 e-0,25. Os resultados indicam que a regionalização do sistema de saúde mostrou-se adequada na organização do atendimento no território, porém, as longas distâncias percorridas ainda são preocupantes.

ABSTRACT The study aims to investigate the flows of Covid-19 hospitalizations in the 450 Brazilian health regions and 117 health macro-regions between March and October 2020. This descriptive study includes all Covid-19 hospitalizations registered in the Influenza Epidemiological Surveillance Information System between the eighth and forty-fourth epidemiological weeks of 2020. In Brazil, 397,830 admissions were identified for Covid-19. Emigration was 11.9% for residents in health regions and 6.8% in macro-regions; this pattern was also maintained during the peak period of Covid-19 hospitalizations. The average evasion for residents of health regions was 17.6% in the Northeast and 8.8% in the South. Evasion was more accentuated in health regions with up to 100 thousand inhabitants(36.9%), which was 7 times greater than that observed in health regions with more than 2 million inhabitants (5.2%). The negative migratory efficacy indicator (-0.39) revealed a predominance of evasion. Of the 450 Brazilian health regions, 117 (39.3%) had a coefficient of migratory efficacy between-1 and-0.75, and 113 (25.1%) between-0.75 and-0.25. Results indicate that the regionalization of the health system exhibited adequate organization of healthcare in the territory; however, the long distances traveled are still worrisome.

RESUMO Objetivou-se comparar o comportamento da Covid-19 em Manaus e Fortaleza, dois epicentros da pandemia em 2020, analisando medidas legais dos governos locais e níveis de isolamento social. Definiu-se um algoritmo para calcular o Índice de Permanência Domiciliar (IPD), com dados do Google Mobility Report. Analisaram-se a linha do tempo dos decretos, a evolução do IPD, da incidência de Covid-19 e do número de óbitos de março/2020 a janeiro/2021. A população de Fortaleza esteve exposta a medidas de distanciamento social mais consistentes que as de Manaus. Foi observado, de março a maio de 2020, uma maior permanência domiciliar, e Fortaleza atingiu níveis mais elevados e duradouros. A partir de junho, o IPD caiu, sobretudo em Manaus, atingindo níveis abaixo de zero no final de dezembro. Devido a isso, o governo decretou amplo isolamento em Manaus em 23/12/2020, mas após protestos, revogou-o em 26/12/2020. Uma decisão judicial determinava o fechamento completo em Manaus em 02/01/2021, mas foi tarde demais: o SUS entrou em colapso com aumento exponencial dos óbitos. Em Fortaleza, a demanda aos serviços de saúde estava elevada, mas sob controle. Considerou-se que somente a aplicação rigorosa de medidas não farmacológicas e imunização em massa poderiam evitar mais mortes.

ABSTRACT This article aims to compare the evolution of Covid-19 in Manaus and Fortaleza, two epicenters of the pandemic in 2020, analyzing legal measures by local governments and levels of social isolation. An algorithm was defined to calculate the Homestay Index (HSI), using data from the Google Mobility Report. We analyzed the decree’s timeline, the HSI evolution, the Covid-19 incidence and the number of deaths from March/2020 to January/2021. The population of Fortaleza was exposed to more consistent measures of social distancing than that of Manaus. Longer homestay was observed from March to May 2020 and Fortaleza achieved higher and more lasting levels. As of June 2020, the HSI fell, notably in Manaus, reaching levels below zero in late December. As an aggravating factor, the government decreed broad isolation in Manaus on December 23, 2020, but after protests it was repealed on December 26, 2020. A judicial decision determined the complete closure in Manaus on January 2nd 2021, but it was too late: the SUS collapsed with an exponential increase in deaths. In Fortaleza, the demand for health services was high, but under control. We consider that only the strict application of non-pharmacological measures and mass immunization can prevent further deaths.

RESUMO Objetivou-se investigar os fluxos de internações por Covid-19 nas 450 regiões e 117 macrorregiões de saúde brasileiras, de março a outubro de 2020. Realizou-se estudo descritivo, compreendendo todas as internações por Covid-19 registradas no Sistema de Informação de Vigilância Epidemiológica da Gripe entre a 8ª e a 44ª semanas epidemiológicas de 2020. Identificaram-se 397.830 internações por Covid-19 no Brasil. A evasão foi de 11,9% dos residentes nas regiões de saúde e de 6,8% nas macrorregiões; padrão que se manteve no período de pico das internações por Covid-19. Houve, em média, 17,6% de evasão dos residentes das regiões de saúde do Nordeste e de 8,8% das do Sul. A evasão foi mais acentuada nas regiões de saúde com até 100 mil/hab. (36,9%), a qual foi 7 vezes maior que a verificada naquelas com mais de 2 milhões/habitantes (5,2%). O indicador de eficácia migratória negativo (-0,39) indicou predomínio da evasão. Das 450 regiões de saúde brasileiras, 117 (39,3%) apresentaram coeficiente de eficácia migratória entre-1 e-0,75; e 113 (25,1%), entre-0,75 e-0,25. Os resultados indicam que a regionalização do sistema de saúde mostrou-se adequada na organização do atendimento no território, porém, as longas distâncias percorridas ainda são preocupantes.

ABSTRACT The study aims to investigate the flows of Covid-19 hospitalizations in the 450 Brazilian health regions and 117 health macro-regions between March and October 2020. This descriptive study includes all Covid-19 hospitalizations registered in the Influenza Epidemiological Surveillance Information System between the eighth and forty-fourth epidemiological weeks of 2020. In Brazil, 397,830 admissions were identified for Covid-19. Emigration was 11.9% for residents in health regions and 6.8% in macro-regions; this pattern was also maintained during the peak period of Covid-19 hospitalizations. The average evasion for residents of health regions was 17.6% in the Northeast and 8.8% in the South. Evasion was more accentuated in health regions with up to 100 thousand inhabitants(36.9%), which was 7 times greater than that observed in health regions with more than 2 million inhabitants (5.2%). The negative migratory efficacy indicator (-0.39) revealed a predominance of evasion. Of the 450 Brazilian health regions, 117 (39.3%) had a coefficient of migratory efficacy between-1 and-0.75, and 113 (25.1%) between-0.75 and-0.25. Results indicate that the regionalization of the health system exhibited adequate organization of healthcare in the territory; however, the long distances traveled are still worrisome.

RESUMO: As infecções por Eimeria são comuns na ovinocultura mundial. Cordeiros são mais suscetíveis a coccidiose, especialmente em condições estressantes, sendo infectados por diferentes espécies do parasito. Eimeria crandallis e Eimeria ovinoidalis são consideradas as mais patogênicas, causando redução do crescimento, desidratação, anorexia e morte. Neste estudo, a prevalência de Eimeria spp. foi avaliada em cordeiros da região sul do Estado do Rio Grande do Sul, Brasil. Amostras fecais de 248 cordeiros, provenientes de 19 fazendas, foram testadas quanto à presença de oocistos. As amostras positivas foram reexaminadas e os oocistos esporulados analisados morfometricamente para identificação das espécies de Eimeria presentes. Em 100% das fazendas avaliadas houve animais positivos para o protozoário. A frequência das espécies de Eimeria foi: E. ovinoidalis (94.74%), E. crandallis (89.47%), E. granulosa (78.95%), E. parva (68.42%), E. ahsata (63.13%), E. punctata (42.11%), E. bakuensis (36.84%), E. faurei (10.53%) e E. pallida (5.26). Infecção mista foi encontrada em 94.74% das amostras. Este trabalho descreve pela primeira vez a ocorrência de E. crandallis e E. ovinoidalis infectando cordeiros na área de estudo. Este trabalho descreve pela primeira vez a ocorrência de E. crandallis e E. ovinoidalis infectando cordeiros na área de estudo. A ampla distribuição desse protozoário e a alta frequência das espécies patogênicas evidenciam a importância da coccidiose ovina e os danos potenciais nos rebanhos do Rio Grande do Sul.

ABSTRACT: Eimeria infections are common in the sheep industry worldwide. Lambs are more susceptible to coccidiosis, especially in stressful conditions, being infected by different species of the parasite. Eimeria crandallis and Eimeria ovinoidalis are considered the most pathogenic, causing reduced growth, dehydration, anorexia, and death. In this study, the frequency of Eimeria species was evaluated in lambs from the southern region of the Rio Grande do Sul state, Brazil. Fecal samples from 248 lambs, from 19 farms, were tested for the presence of oocysts. The positive samples were re-examined and the sporulated oocysts analyzed morphometrically to identify the presence of Eimeria species. In 100% of the evaluated farms, there were animals positive for the protozoan. The frequency of Eimeria species was: E. ovinoidalis (94.74%), E. crandallis (89.47%), E. granulosa (78.95%), E. parva (68.42%), E. ahsata (63.13%), E. punctata (42.11%), E. bakuensis (36.84%), E. faurei (10.53%), and E. pallida (5.26%). Mixed infection was found in 94.74% of the samples. This research describes, for the first time, the occurrence of E. crandallis and E. ovinoidalis infecting lambs in the study area. The wide distribution of this protozoan and the high frequency of pathogenic species show the importance and potential damage of sheep coccidiosis in herds from Rio Grande do Sul.

RESUMO Objetivo: averiguar a perspectiva da população sobre trauma de face, de acordo com nível de escolaridade. Métodos: estudo observacional, transversal, documental, quantitativo, oriundo de 852 entrevistas, em duas capitais brasileiras. Investigou-se associação entre nível de escolaridade e demais conhecimentos sobre trauma de face. Dados foram analisados com testes Qui-quadrado de Pearson ou Exato de Fisher, erro de 5%. Resultados: houve associação estatisticamente significante da escolaridade e entendimento das consequências do trauma em: funções (p=0,001), mobilidade da boca (p=0,005) e questões dentárias (p=0,003). Na população mais acometida, escolaridade também se associou a jovens (p=0,001) e adultos (p=0,044). Sobre causas, houve associação com quedas (p=0,034) e acidentes de trânsito (p=0,034). Houve associação de ciclistas (p=0,016) e motociclistas (p=0,001) como população mais propensa. Escolaridade foi associada a todos profissionais. Com relação às consequências para a vida, houve também associação com saúde geral (p=0,049), atividades domésticas (p=0,001) e vida social (p=0,001). Imprudência foi a única causa com associação (p=0,004). Escolaridade foi associada ao conhecimento prévio sobre trauma (p=0,001). Conclusão: entendimento sobre consequências do trauma, população mais acometida, principais causas, profissionais envolvidos no tratamento, repercussão para a vida das pessoas e conhecimento prévio sobre o assunto aumentaram de acordo com os níveis de escolaridade.

ABSTRACT Purpose: to verify the population’s understanding on facial trauma, according to their level of schooling. Methods: an observational, cross-sectional, quantitative, documentary study conducted, based on 852 interviews carried out in two Brazilian state capitals. The association between the levels of schooling and varied knowledge of facial trauma was investigated. The data were analyzed with Pearson’s chi-square test or Fisher’s exact test, with a margin of error of 5%. Results: there was a statistically significant association between the participants’ schooling and their understanding on the consequences of trauma in: functions (p = 0.001), mouth mobility (p = 0.005), and dental issues (p = 0.003). In the most affected population, schooling was also associated with youth (p = 0.001) and adults (p = 0.044). Regarding causes, there was association with falls (p = 0.034) and traffic accidents (p = 0.034). There was association with bikers (p = 0.016) and motorcyclists (p = 0.001) as the population with greater propensity. Schooling was associated with all the professionals. Concerning the consequences to the victim’s life, there was association also with general health (p = 0.049), household chores (p = 0.001), and social life (p = 0.001). Recklessness was the only cause with an association (p = 0.004). Schooling was associated with previous knowledge of trauma (p = 0.001). Conclusion: their understanding on the consequences of trauma, most affected population, main causes, professionals involved in the treatment, repercussion for people’s lives, and previous knowledge of the subject increased along with the levels of background.

Abstract Purpose To compare, both qualitatively and quantitatively, the inflammatory cells, vascular density and IL-6 immunolabeled cells present in the pulp after pulpotomy with white MTA versus 15.5% ferric sulfate (FS). Methodology Forty-eight mandibular first molars from 24 Wistar rats were divided into MTA or FS groups and subdivided according to the period after pulpotomy procedure (24, 48 and 72 hours). Four teeth (sound and untreated) were used as controls. Histological sections were obtained and assessed through the descriptive analysis of morphological aspects of pulp tissue and the quantification of inflammatory cells, vascular density and interleukin-6 (IL-6) expression. Data were statistically analyzed (p<0.05). Results The number of inflammatory cells was similar in both groups, being predominantly localized at the cervical radicular third. In the MTA group, increased inflammation was observed at 48 hours. Vascular density was similar in both groups and over time, being predominant in the medium radicular third. No correlation was found between the number of inflammatory cells and the vascular density. Pulp tissue was more organized in MTA-treated teeth. In both groups, a weak to moderate IL-6 expression was detected in odontoblasts and inflammatory cells. Comparing both groups, there was a greater IL-6 expression in the cervical radicular third of teeth treated with MTA at 24 hours and in the medium and apical thirds at 72 hours, while in the FS group a greater IL-6 expression was found in the apical third at 24 hours. Conclusion The MTA group presented better histological features and greater IL-6 expression than the FS group. However, no difference was observed between the groups regarding the inflammatory status and vascularization, suggesting the usefulness of FS as a low-cost alternative to MTA.

ABSTRACT Pasture and crop lands restrict seed dispersal near remnant forest fragments, especially by restricting the movements of dispersal agents and limiting propagule dispersal. Some factors can improve seed dispersal in open areas, such as the presence of high numbers of isolated trees in close proximity to forest fragments. We sought to determine if: (i) the structural characteristics and (ii) densities of isolated trees in pasture lands, and (iii) their distances from the forest fragments, influence seed dispersal. We installed 18 seed traps in each of six pastures (total=108 traps) bordering forest fragments distributed over 6 distance classes from the forest edges (0, 5, 10, 20, 40 and 80 m). We determined the characteristics of the plants surrounding the traps. GLM and GLMer analyses were performed and the best model was selected by AIC. We collected 8162 seeds (4722 anemochorous, 3304 epizoochorous, 72 autochorous, and 64 endozoochorous) belonging to 26 species. Our results showed that plants with high crown coverage close to forest fragments and at high densities in the pastures increased seed dispersal. These results may aid future restoration of pasture lands by improving seed dispersal in this harsh habitat and promoting better connectivity between forest fragments.

Abstract: Bioactive molecules stored in dentin, such as transforming growth factor beta1 (TGF-b1), may be involved in the signaling events related to dental tissue repair. The authors conducted an in vitro evaluation of the amount of TGF-b1 released from dentin slices after treatment with 10% ethylenediaminetetraacetic acid (EDTA), 2.5% sodium hypochlorite (NaOCl) or phosphate-buffered saline (PBS), and the effect of this growth factor on stem cell migration from human exfoliated deciduous teeth (SHED). Sixty 1-mm-thick tooth slices were prepared with or without the predentin layer, and treated with either 10% EDTA for 1 minute, 2.5% NaOCl for 5 days or kept in PBS. Tooth slice conditioned media were prepared and used for TGF-b1 ELISA and migration assays. Culture medium with different concentrations of recombinant human TGF-b1 (0.5, 1.0, 5.0 or 10.0 ng/mL) was also tested by migration assay. The data were evaluated by ANOVA and Tukey's test. Optical density values corresponding to media conditioned by tooth slices either containing or not containing the predentin layer and treated with 10% EDTA were statistically greater than the other groups and close to 1 ng/mL. Increased rates of migration toward media conditioned by tooth slices containing the predentin layer and treated with PBS, 10% EDTA or 2.5% NaOCl were observed. Recombinant human TGF-b1 also stimulated migration of SHED, irrespective of the concentration used. EDTA may be considered an effective extractant of TGF-b1 from the dentin matrix. However, it does not impact SHED migration, suggesting that other components may account for the cell migration.

Introduction Ultrasound biomicroscopy (UBM) is a technique for generating high-resolution images, with frequencies from 20 MHz to 100 MHz. For example, it has been used in animal research related to models of injury and diseases that mimic human conditions. With a three-dimensional ultrasound (3D) image system, an organ can be viewed at various angles and the volume estimated, contributing to an accurate diagnosis. This work refers to the generation of 3D-UBM images, employing a 35 MHz ultrasound system, from multiple two-dimensional (2D) images. Phantoms were used to validate the technique and to determine its reliability of volume measurements. Additionally, the technique was used to obtain 3D images of the rat gastrocnemius muscle. Methods Four different phantoms were used and ten acquisition sequences of 2D-images acquired for each one. Thereafter, 5 volume segmentations were performed for each acquisition sequence, resulting in 50 measured volumes for each phantom. The physical volumes of all phantoms were used to validate the technique based on the coefficient of variation (CV) and the intraclass correlation coefficient (ICC). Images of the gastrocnemius muscle were acquired and the partial volume quantified. Results The CV and ICC confirmed the reliability of volume measurements obtained by segmentation. Moreover, cross-sectional 2D images of rat hindlimb were obtained, allowing to identify the gastrocnemius muscle and to partially quantify the muscle volume from 3D images. Conclusion The results indicated that the technique is valid to generate 3D images and quantify the volume of a muscle compatible with the dimensions of a small animal.