Objectives: To summarize evidence-based cognitive-behavioral therapy (CBT) treatment and propose clinical interventions for adult patients with obsessive-compulsive disorder (OCD). Methods: The literature on CBT interventions for adult OCD, including BT and exposure and response prevention, was systematically reviewed to develop updated clinical guidelines for clinicians, providing comprehensive details about the necessary procedures for the CBT protocol. We searched the literature from 2013-2020 in five databases (PubMed, Cochrane, Embase, PsycINFO, and Lilacs) regarding study design, primary outcome measures, publication type, and language. Selected articles were assessed for quality with validated tools. Treatment recommendations were classified according to levels of evidence developed by the American College of Cardiology and the American Heart Association. Results: We examined 44 new studies used to update the 2013 American Psychiatric Association guidelines. High-quality evidence supports CBT with exposure and response prevention techniques as a first-line treatment for OCD. Protocols for Internet-delivered CBT have also proven efficacious for adults with OCD. Conclusion: High-quality scientific evidence supports the use of CBT with exposure and response prevention to treat adults with OCD.

Abstract Objective: Among the mechanisms proposed for the development of bronchopulmonary dysplasia is the increase in the pulmonary inflammatory process and oxidative stress. Thus, the control of this process may result in improvements in bronchopulmonary dysplasia-related outcomes. This study aims to analyze the current scientific evidence regarding the use of budesonide, a potent anti-inflammatory drug, associated with a pulmonary surfactant to prevent bronchopulmonary dysplasia. Methods: A systematic review of the literature was performed on the Embase and MEDLINE platforms, and studies that compared budesonide with pulmonary surfactant versus pulmonary surfactant for treating respiratory distress syndrome were included. The primary outcome was a reduction in bronchopulmonary dysplasia or death. Results: Four randomized clinical trials and two observational studies were included in this systematic review. Three of the randomized clinical trials found a reduction in bronchopulmonary dysplasia or death in the use of budesonide with the surfactant, all the other studies (1 clinical trial and 2 observational studies) found no statistical differences between the groups for the primary outcomes. The three main studies showed a reduction in the primary outcome; however, all studies showed great heterogeneity regarding the type of surfactant (poractant or beractant) and the method of administration. Conclusion: Robust clinical studies, in a heterogeneous population, using porcine surfactant associated with budesonide, with administration by a minimally invasive technique are necessary for there to be a recommendation based on scientific evidence for its widespread use.

Objectives: To summarize evidence-based pharmacological treatments and provide guidance on clinical interventions for adult patients with obsessive-compulsive disorder (OCD). Methods: The American Psychiatric Association (APA) guidelines for the treatment of OCD (2013) were updated with a systematic review assessing the efficacy of pharmacological treatments for adult OCD, comprising monotherapy with selective serotonin reuptake inhibitors (SSRIs), clomipramine, serotonin and norepinephrine reuptake inhibitors (SNRIs), and augmentation strategies with clomipramine, antipsychotics, and glutamate-modulating agents. We searched for the literature published from 2013-2020 in five databases, considering the design of the study, primary outcome measures, types of publication, and language. Selected articles had their quality assessed with validated tools. Treatment recommendations were classified according to levels of evidence developed by the American College of Cardiology and the American Heart Association (ACC/AHA). Results: We examined 57 new studies to update the 2013 APA guidelines. High-quality evidence supports SSRIs for first-line pharmacological treatment of OCD. Moreover, augmentation of SSRIs with antipsychotics (risperidone, aripiprazole) is the most evidence-based pharmacological intervention for SSRI-resistant OCD. Conclusion: SSRIs, in the highest recommended or tolerable doses for 8-12 weeks, remain the first-line treatment for adult OCD. Optimal augmentation strategies for SSRI-resistant OCD include low doses of risperidone or aripiprazole. Pharmacological treatments considered ineffective or potentially harmful, such as monotherapy with antipsychotics or augmentation with ketamine, lamotrigine, or N-acetylcysteine, have also been detailed.

Abstract There is an increasing interest in essential oils extracted from Verbenaceae plant species as potential sources of biologically active compounds that could provide a starting point for designing novel phyto-pharmaceuticals in aquaculture. The present study was aimed to investigate the chemical composition, antioxidant activity, acute toxicity and antimicrobial effects against Vibrio parahaemolyticus of essential oils extracted from Lippia alba and L. origanoides. Approximately 23 components were identified and quantified by gas chromatography-mass spectrometry and flame ionization detection in each species’ essential oil. The most predominant compounds were geranial (23.0%), limonene (17.0%) and neral (15.5%) in L. alba, and thymol (47.2%), p-cymene (16.0%) and E-caryophyllene (11.3%) in L. origanoides. The essential oils have antibacterial activity against Vibrio parahaemolyticus presenting Minimum Inhibitory Concentration (MIC) and Bactericidal Concentration (MBC) values between 156-625 µg mL-1. The essential oils also show antioxidant potential estimated by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assays, presenting IC50 of 60.16 mg mL-1 and 0.22 mg mL-1 for L. alba and L. origanoides EO, respectively. Both oils were classified as toxic to Artemia salina nauplii. Therefore, these essential oils may be useful for controlling pathogenic bacteria important to the aquaculture industry.

Abstract Fetal bovine serum (FBS) is the most used supplement in culture media; however, it may interfere with in vitro assays via effects on cell proliferation and cytokine production. The ideal FBS concentration for assays using apical papilla cells (APCs) remains unknown. Therefore, this study aimed to evaluate the effects of FBS on APC activation, cell viability/proliferation, and cytokine production. Methodology Human APCs were cultured, plated, and maintained in media containing increasing concentrations of FBS for 24 h, 48 h, 72 h, 7 days, and 14 days in the presence of Lipopolysaccharide (LPS - 1 µg/mL). At each time point, the cells were subjected to the MTT assay. The cytokines transforming growth factor (TGF)-β1, osteoprotegerin (OPG), and interleukin (IL)-6, along with the chemokine CCL2, were quantified using the enzyme-linked immunosorbent assay at the 24-h time-point. Statistical analysis was performed using two-way analysis of variance (ANOVA) followed by Tukey's post-hoc test (p<0.05). Results In general, APCs exhibited increasing metabolic activity in an FBS concentration-dependent fashion, regardless of the presence of LPS. In contrast, FBS interfered with the production of all the cytokines evaluated in this study, affecting the response induced by the presence of LPS. Conclusion FBS increased APC metabolism in a concentration-dependent manner and differentially affected the production of TGF-β1, OPG, IL-6, and CCL2 by APCs in vitro.

Abstract The aims of this study were to 1) assess the association between erosive tooth wear (ETW) according to the BEWE (Basic Erosive Wear Examination) scoring system and salivary parameters and 2) compare salivary parameters according to ETW severity in the subgroup of children with ETW. This cross-sectional study included 52 preschool children aged 5 years paired by sex. A calibrated examiner assessed ETW using BEWE criteria, and stimulated saliva was collected to determine salivary flow, osmolality, pH, and buffering capacity. The children were divided into two groups: without ETW (n=26; BEWE score 0) and with ETW (n=26; BEWE scores 1 and 2). Logistic regression analysis was used to determine the magnitude of the association between ETW and salivary parameters and estimates of odds ratios (OR). In the unadjusted analysis, the ETW group was more likely to have lower salivary flow (OR = 0.079; 95%CI = 0.013–0.469; p = 0.005) and lower osmolality (OR = 0.993; 95%CI = 0.985–1.000; p = 0.049). In the adjusted analysis, salivary flow remained significantly associated with ETW (OR = 0.087; 95%CI = 0.014–0.533; p = 0.008). Lower salivary osmolality values were observed in ETW, especially in preschool children with more severe ETW (BEWE score 2). Receiver operating characteristic (ROC) determined a salivary osmolality cutoff point of < 201 for the presence of ETW. In conclusion, salivary flow rate was significantly associated with ETW prevalence. Lower values of salivary osmolality were observed in preschool children with distinct erosive lesions with significant loss of tooth structure (BEWE 2).

Abstract Digital technologies are important tools to facilitate the education of millions of people in Brazil. Google and Microsoft mediate pedagogical processes through their platforms. These digital monopolies have as their main business model the monetization of their users’ personal data. Through the collection, storage, organization of data and the commercialization of prediction products, the goods produced by these corporations modify the market, political strategies, ways of working, social structures and public policies (CRUZ; VENTURINI, 2020). This phenomenon is defined as surveillance capitalism. The research aims to reflect on the advance of surveillance capitalism in education in the light of Álvaro Vieira Pinto, Evgeny Morozov, Paulo Freire and Sérgio Guimarães. It is questioned which hegemonic digital technologies present in public education are at the service of which groups? How can Álvaro Vieira Pinto, Evgeny Morozov, Paulo Freire and Sérgio Guimarães help in the reflection on surveillance capitalism in education? The work has a qualitative approach. The technique used is bibliographical research, in which the works Educar com a mídia: novos diálogos sobre educação by Paulo Freire and Sérgio Guimarães; O conceito de tecnologia by Álvaro Vieira Pinto; and Big Tech: a ascensão dos dados e a morte da política by Evgeny Morozov. It was found that the authors defend the development of critical awareness about technologies, through the analysis and understanding of the historical, economic and political contexts in which technological artifacts are developed.

Resumo Tecnologias digitais são importantes ferramentas para viabilizar a educação de milhões de pessoas do Brasil. Google e Microsoft mediam atualmente processos pedagógicos por meio de suas plataformas. Esses monopólios digitais possuem como principal modelo de negócio a monetização dos dados pessoais dos seus usuários. Por meio de coleta, armazenamento, organização dos dados e comercialização dos produtos de predições, as mercadorias produzidas por essas corporações modificam o mercado, as estratégias políticas, as formas de trabalho, estruturações sociais e políticas públicas (CRUZ; VENTURINI, 2020). Esse fenômeno é definido como capitalismo de vigilância. A pesquisa tem como objetivo refletir sobre o avanço do capitalismo de vigilância na educação à luz de Álvaro Vieira Pinto, Evgeny Morozov, Paulo Freire e Sérgio Guimarães. Questiona-se: as tecnologias digitais hegemônicas presentes na educação pública estão a serviço de quais grupos? Como Álvaro Vieira Pinto, Evgeny Morozov, Paulo Freire e Sérgio Guimarães podem ajudar na reflexão sobre o capitalismo de vigilância na educação? O trabalho possui abordagem qualitativa. A técnica utilizada é a pesquisa bibliográfica, para a qual foram selecionadas as obras “Educar com a mídia: novos diálogos sobre educação”, de Paulo Freire e Sérgio Guimarães; “O conceito de tecnologia”, de Álvaro Vieira Pinto; e “Big Tech: a ascensão dos dados e a morte da política”, de Evgeny Morozov. Constatou-se que os autores defendem o desenvolvimento da consciência crítica sobre as tecnologias, por meio da análise e da compreensão dos contextos histórico, econômico e político em que os artefatos tecnológicos são desenvolvidos.

ABSTRACT Galvanic vestibular stimulation (GVS) influences body balance and has proved to be useful to improve patients’ mood, quality of life, and cognitive skills. This study aimed to present three cases of patients with Parkinson’s disease and postural instability who had been submitted to GVS to improve their balance, by assessing the impact of this intervention on their cognition, mood, and quality of life. Patients were assessed before and after GVS sessions concerning P300 latency and scores on the 15-item Geriatric Depression Scale (GDS-15) and the 39-item quality-of-life Parkinson’s Disease Questionnaire (PDQ-39). The three patients’ P300 latency improved, possibly indicating improved attention. Their PDQ-39 score also improved, possibly indicating a positive impact on their quality of life. Their GDS-15 score did not change before and after the intervention. None of the patients had any intervention side effects. This three-case experimental pilot study has shown that GVS is a safe method, possibly useful to improve attention and, therefore, the quality of life of patients presented with Parkinson’s disease.

RESUMO A Estimulação Vestibular Galvânica (EVG) atua no equilíbrio corporal e tem se mostrado útil na melhora do humor, da qualidade de vida e de habilidades cognitivas. O objetivo deste estudo foi apresentar três casos de pacientes com doença de Parkinson e instabilidade postural que foram submetidos à EVG para melhorar o equilíbrio e avaliar o impacto dessa intervenção na cognição, no humor e na qualidade de vida. Os pacientes foram avaliados antes e após as sessões de EVG quanto a latência do potencial evocado P300, pontuação na escala de depressão geriátrica de 15 itens (EDG-15) e pelo questionário de qualidade de vida na doença de Parkinson de 39 itens (PDQ-39). Os três pacientes apresentaram melhora na latência do P300, indicando possível melhora na atenção. Apresentaram melhora na pontuação do PDQ-39, indicando possível impacto positivo na qualidade de vida. A pontuação na EDG-15 não modificou antes e após a intervenção. Nenhum paciente apresentou efeitos colaterais decorrentes da intervenção. Com base neste estudo piloto experimental de três casos, a EVG mostrou-se um método seguro e possivelmente útil para melhorar a atenção e, consequentemente, a qualidade de vida de pacientes com doença de Parkinson.

ABSTRACT Purpose To analyze the association between hearing loss and health vulnerability in children aged 25 to 36 months. Methods Analytical observational cross-sectional study conducted through child hearing screening in nine day-care centers. The screening consisted of anamnesis, otoscopy, tympanometry, transient otoacoustic emissions, and pure tone audiometry. For each exam performed, the 'pass' and 'fail' criteria were established. The children's residential addresses were georeferenced and a choropleth map of the spatial distribution was built, considering the Health Vulnerability Index (HVI). The analysis of the association between the HVI and the variables sex, auditory assessment, and region area of the household was performed using Pearson's Chi-square and Fisher's Exact tests. Results Ninety-five children of both sexes were evaluated, of which 44.7% presented alterations in at least one of the exams performed, being referred for otorhinolaryngological evaluation and subsequent auditory assessment. Of the observed changes, 36.9% occurred in the tympanometry and 7.8% in the transient otoacoustic emissions. Among children referred for reassessment, 9.7% were diagnosed with conductive hearing loss, 13.6% results within normal limits and 21.4% did not attend for assessment. Of the children who presented the final diagnosis of conductive hearing loss (9.7%), 1.9% were classified as low-risk HVI and 6.8% as medium-risk HVI. There was statistical significance between HVI and the child's place of residence. Conclusion The association between hearing loss and HIV was not statistically significant; however, it was possible to observe that 77.7% of the children with hearing loss resided in sectors with medium- risk HIV

RESUMO Objetivo Analisar a associação entre perda auditiva e a vulnerabilidade à saúde em crianças na faixa etária de 25 a 36 meses. Método Estudo observacional analítico do tipo transversal realizado por meio da triagem auditiva infantil em nove creches. A triagem constou de anamnese, meatoscopia, timpanometria, emissões otoacústicas transientes e audiometria tonal limiar. Para cada exame realizado foi estabelecido o critério de “passa” e “falha”. Os endereços residenciais das crianças foram georreferenciados e foi construído mapa coroplético da distribuição espacial, considerando o Índice de Vulnerabilidade à Saúde (IVS). Foi realizada análise de associação entre o IVS com as variáveis sexo, exames audiológicos e regional de domicílio por meio dos testes Qui-quadrado de Pearson, e Exato de Fisher. Resultados Foram avaliadas 95 crianças de ambos os sexos, destas, 44,7% apresentaram alteração em pelo menos um dos exames realizados, sendo encaminhadas para avaliação otorrinolaringológica e auditiva. Das alterações observadas 36,9% ocorreram na timpanometria e 7,8% nas emissões otoacústicas transientes. Dentre crianças encaminhadas para avaliação, 9,7% apresentaram diagnóstico de perda auditiva do tipo condutiva, 13,6% resultados dentro da normalidade e 21,4% não compareceram para reavaliação. Das crianças que apresentaram o diagnóstico final de perda auditiva do tipo condutiva (9,7%), 1,9% foi classificado como IVS de risco baixo e 6,8% como IVS de risco médio. Houve significância estatística entre IVS e o local de residência da criança. Conclusão Não houve associação com significância estatística entre alteração auditiva e IVS, entretanto foi possível observar que 77,7% das crianças com diagnóstico de perda auditiva residiam em setores censitários de risco médio do IVS.

ABSTRACT Objective: To map topical interventions used to prevent hand-foot syndrome in cancer patients undergoing antineoplastic therapy. Method: This is a scoping review reported in accordance with the recommendations of PRISMA-ScR (extension for scoping review) and the Joanna Briggs Institute Manual. The searches were carried out in the electronic databases CINAHL, Cochrane CENTRAL, EMBASE, LILACS, LIVIVO, PubMed, Scopus, Web of Science; and gray literature (Google Scholar, Pro-Quest). Results: The searches resulted in 12,016 references and the final sample consisted of 45 studies. A total of 42 topical interventions were identified, including: moisturizing creams, corticosteroids, acids, mapisal, silymarin, and henna. However, urea was the most cited intervention (62%). As for the presentations of the interventions, they varied among creams, ointments, gels, hydrocolloids, decoctions, patches, powders, oils, and soaps. Conclusion: The results allowed reviewing topical interventions, with emphasis on the use of urea and moisturizing creams. However, most of the interventions identified in this review require evaluation in future studies for better understanding of their benefits.

RESUMEN Objetivo: Mapear las intervenciones tópicas utilizadas para prevenir el síndrome mano-pie en pacientes con cáncer sometidos a terapia antineoplásica. Método: Esta es una revisión del alcance reportada de acuerdo con las recomendaciones de PRISMA-ScR (extensión para la revisión del alcance) y el Manual del Instituto Joanna Briggs. Las búsquedas se realizaron en las bases de datos electrónicas CINAHL, Cochrane CENTRAL, EMBASE, LILACS, LIVIVO, PubMed, Scopus, Web of Science; y literatura gris (Google Scholar, Pro-Quest). Resultados: Las búsquedas resultaron en 12.016 referencias y la muestra final estuvo compuesta por 45 estudios. Se identificaron 42 intervenciones tópicas, entre ellas: cremas humectantes, corticoides, ácidos, mapisal, silimarina y henna. Sin embargo, la urea fue la intervención más citada (62%). En cuanto a las presentaciones de las intervenciones, variaron entre cremas, ungüentos, geles, hidrocoloides, decocciones, parches, polvos, aceites y jabones. Conclusión: Los resultados permitieron revisar las intervenciones tópicas, con énfasis en el uso de urea y cremas humectantes. Sin embargo, la mayoría de las intervenciones identificadas en esta revisión deben evaluarse en estudios futuros para mejor comprensión de sus beneficios.

RESUMO Objetivo: Mapear as intervenções tópicas utilizadas para a prevenção da síndrome mão-pé em pacientes com câncer em terapia antineoplásica. Método: Trata-se de uma revisão de escopo reportada de acordo com as recomendações do PRISMA-ScR (extensão para revisão de escopo) e o Manual do Instituto Joanna Briggs. As buscas foram realizadas nas bases eletrônicas CINAHL, Cochrane CENTRAL, EMBASE, LILACS, LIVIVO, PubMed, Scopus, Web of Science; e literatura cinzenta (Google Scholar, Pro-Quest). Resultados: As buscas resultaram em 12.016 referências e a amostra final foi composta por 45 estudos. Um total de 42 intervenções tópicas foram identificadas, dentre elas: cremes hidratantes, corticosteroides, ácidos, mapisal, silimarina e henna. Entretanto, a ureia foi a intervenção mais citada (62%). Quanto às apresentações das intervenções, estas variaram entre cremes, pomadas, géis, hidrocoloides, decocções, adesivos, pós, óleos e sabões. Conclusão: Os resultados possibilitaram uma recensão das intervenções tópicas, com destaque ao uso da ureia e cremes hidratantes. Todavia, grande parte das intervenções identificadas nesta revisão necessitam ser avaliadas, em estudos futuros, para melhor compreensão dos seus benefícios.

ABSTRACT This study aimed to investigate the pacing strategies used by men and women in the Berlin Marathon between 2004 and 2019. The records of the first 20 male and female athletes were analysed. The sample was divided into seven groups: world record, champions group (men and woman), 2nd to 5th place group (men and woman) and 6th to 20th place group (men and woman). The time taken in the eight partials of 5 km and the partial of 2,195 km were converted into seconds to calculate the speed in meters per second. To analyse the pacing strategy, the speed in each partial was normalised by the average speed in the test. One-way ANOVA was used to verify possible differences between the groups in each partial. For the analysis of the pacing strategy of each group, the intra-group repeated measures ANOVA was used. World record men used a constant pacing strategy (p= 0.98). The champions groups, male and female, also used a constant pacing strategy (p> 0.108). The 2nd to 5th placed groups of both sexes presented a positive pacing strategy (men p= 0.001– 0.007; women p= 0.00– 0.04). Likewise, the athletes from the 6th to 20th place male and female groups also presented a positive pacing strategy (men p< 0.001; women p< 0.001). No differences were found in the pacing strategy between winning men and women. We conclude that the constant pacing strategy is the reason that made possible the best success in the Berlin Marathon; both the record holders and the champions used it.

RESUMO O presente estudo teve como objetivo investigar as estratégias de pacing utilizadas por homens e mulheres na Maratona de Berlim entre os anos de 2004 e 2019. Foram analisados os registros dos 20 primeiros atletas no masculino e feminino. A amostra foi dividida em sete grupos: recorde mundial, grupo dos campeões (masculino e feminino), grupo do 2º ao 5º colocado (masculino e feminino) e grupo do 6º ao 20º colocado (masculino e feminino). O tempo realizado nas oito parciais de 5 km e na parcial de 2.195 km foram convertidos em segundos para cálculo de velocidade em metros por segundos. Para análise da estratégia de pacing a velocidade em cada parcial foi normalizada pela velocidade média na prova. Utilizou-se ANOVA de um fator para verificar possíveis diferenças entre os grupos em cada parcial, e para a análise da estratégia de pacing de cada grupo, foi utilizada a ANOVA de medidas repetidas intra-grupo. Os homens recordistas mundiais utilizaram estratégia de pacing constante (p= 0.98). Os grupos de campeões, masculino e feminino, também utilizaram estratégia de pacing constante (p> 0.108). Os grupos do 2º ao 5º colocados, de ambos os sexos, apresentaram estratégia de pacing positiva (homens p= 0.001–0.007; mulheres p = 0.001–0.04). Do mesmo modo, os atletas dos grupos do 6º à 20º colocados masculino e feminino também apresentaram estratégia de pacing positiva (homens p< 0.001; mulheres p< 0.001). Não foram encontradas diferenças na estratégia de pacing entre homens e mulheres vencedores. Conclui-se que a estratégia de pacing constante é aquela que possibilitou melhor êxito na Maratona de Berlim, tanto os recordistas quanto os campeões a utilizaram.

Abstract Background Multiple sclerosis (MS) and neuromyelitis optica spectrum disorders (NMOSD) are the most common autoimmune diseases of the central nervous system (CNS). They present chronic relapsing courses that demand treatment with disease-modifying drugs (DMDs) to prevent inflammatory activity. Disease-modifying drugs lead to immunomodulation or immunosuppression through diverse mechanisms (e.g., shifting lymphocyte and cytokine profile, suppressing specific lymphocyte subpopulations). Thus, patients are more prone to infectious complications and associated worsening of disease. Objective To present feasible strategies for mitigating the infection risk of MS and NMOSD treated patients. Methods Targeted literature review concerning the management of infection risk with an emphasis on vaccination, therapy-specific measures, and particularities of the Brazilian endemic infectious diseases' scenario. Conclusion We propose a vaccination schedule, infectious screening routine, and prophylactic measures based on the current scientific evidence. Awareness of emergent tropical diseases is necessary due to evidence of demyelinating events and possible parainfectious cases of MS and NMOSD.

Resumo Antecedentes A esclerose múltipla (EM) e a doença do espectro neuromielite optica (NMOSD) são as doenças autoimunes mais comuns do sistema nervoso central (SNC). Ambas apresentam curso crônico com recaídas (surtos) e exigem tratamento com drogas modificadoras de doenças (DMDs) para a prevenção de atividade inflamatória. As DMDs levam à imunomodulação ou imunossupressão através de diversos mecanismos (por exemplo deslocando e/ou suprimindo subpopulações linfocitárias ou alterando perfil de produção de citocinas). Desta forma, os pacientes com EM ou NMOSD são mais propensos a complicações infecciosas, as quais podem levar ao agravamento de suas doenças de base. Objetivo Apresentar estratégias viáveis para mitigar o risco de infecção de pacientes com EM ou NMOSD sob tratamento. Métodos Revisão bibliográfica focada em manejo de risco de infecção com ênfase em vacinação, medidas específicas de tratamento e particularidades de doenças infecciosas endêmicas do Brasil. Conclusão Propomos um calendário de vacinação, rotina de triagem infecciosa e medidas profiláticas baseadas em evidências científicas atuais. A conscientização das doenças tropicais emergentes é necessária devido a evidências de eventos desmielinizantes e possíveis casos parainfecciosos de EM e NMOSD.

In this work, two catalysts, lanthanum manganite strontium-doped perovskite without (LSM) and with (LSMMO) mixed molybdenum oxides, were synthesized by the sol-gel route and deposited by immersion in carbon cloth substrates. Their performance as cathodes in the hydrogen peroxide reduction reaction (HPRR) and oxygen reduction reaction (ORR) was investigated through cyclic voltammetry and electrochemical impedance spectroscopy, the electrocatalytic efficiency of these electrodes in the HPRR was analyzed in KOH and H2O2 medium at 298 K. The performance of the cathodes, in a single compartment, using a nickel plate as an anode was also investigated. The results showed that for the reduction reactions, electrodes developed with LSMMO have more significant catalytic activity than LSM after polarization, resulting in 32% higher current densities, lower electrical resistance after polarization, and a 21% increase in power density.

RESUMO JUSTIFICATIVA E OBJETIVOS: Exercícios de alongamento estão presentes em programas de treinamento físico e reabilitação muscular. Dentro do contexto da reabilitação de indivíduos com dor na região lombar (lombalgia), ainda existe uma lacuna sobre os mecanismos pelos quais esses exercícios reduzem dor e incapacidade nesses pacientes. O objetivo deste estudo foi descrever os possíveis mecanismos pelos quais o exercício de alongamento pode reduzir dor em indivíduos com lombalgia crônica. CONTEÚDO: A dor na região lombar é uma das dores mais incapacitantes quando se trata de limitações para as funções no cotidiano. Por isso, é necessário investigar alternativas que possam proporcionar o seu alívio nesses pacientes. Considerando que a causa da lombalgia crônica não específica é multifatorial, o tratamento desta doença ocorre principalmente na tentativa de reduzir a sensação dolorosa. Como alternativa, o treinamento da flexibilidade por meio de exercícios de alongamento pode agir reduzindo a dor lombar por gerarem alterações biomecânicas e sensoriais que resultam em efeito analgésico. Adicionalmente, ainda é possível que esses dois efeitos possam atuar em conjunto para explicar a redução da dor lombar após a realização de exercícios de alongamento. CONCLUSÃO: Existe suporte teórico na literatura para sustentar a realização dos exercícios de alongamento como estratégia não farmacológica para o tratamento da dor lombar crônica. Mecanismos biomecânicos e neurofisiológicos poderiam ser apontados para explicar tais benefícios.

ABSTRACT BACKGROUND AND OBJECTIVES: Stretching exercises are present in physical training and muscle rehabilitation programs. Within the context of rehabilitation of patients with low back pain (lombalgy), there is still a gap about the mechanisms that these exercises should reduce pain and disability in these patients. The aim of this study was to investigate what are the possible mechanisms through which muscle stretching exercise could reduce pain in individuals with chronic low back pain.CONTENTS: Pain in the lumbar region is one of the most disabling pains when it comes to limitations for daily functions, so it’s necessary to investigate alternatives that provide relief for these patients. As the cause of non-specific chronic low back pain is multifactorial, the treatment of the pathology occurs mainly to reduce the sensation of pain. As an alternative, the flexibility training through stretching exercises can be efficient because they generate biomechanical and sensory changes, which would result in an analgesic effect. Additionally, it’s still possible that these two effects occur together to explain the reduction in low back pain after performing stretching exercises. CONCLUSION: There is theoretical basis in the literature to support the performance of stretching exercises as a non-pharmacological strategy for the treatment of chronic low back pain. Biomechanical and neurophysiological mechanisms can be pointed out to explain these benefits.

RESUMO - O armazenamento de diásporos possibilita disponibilizar mudas para atender os programas de reflorestamento ou de recuperação de áreas degradadas, principalmente para espécies perenes que não produzem diásporos regularmente ou quando a germinação dos mesmos é difícil e demorada. Objetivou-se verificar o potencial fisiológico de diásporos de Schinopsis brasiliensis armazenados em dois ambientes por 12 meses, com posterior escarificação manual do endocarpo. O delineamento experimental adotado foi o inteiramente casualizado, em esquema fatorial 2 × 7 × 2, com dois ambientes (natural e geladeira) e sete períodos (0; 2; 4; 6; 8; 10 e 12 meses) de armazenamento, e duas condições físicas do endocarpo (intacto e escarificado). Foram avaliados o teor de água, emergência, índice de velocidade e tempo médio de emergência, comprimento, massa seca da parte aérea e do sistema radicular e diamêtro do coleto das plântulas. O armazenamento por 12 meses não supera a dormência tegumentar dos diásporos de S. brasilensis. A escarificação manual após o armazenamento em ambiente natural favorece a emergência e a velocidade de estabelecimento das plântulas. Independente da condição de armazenamento, os diásporos apresentam maior capacidade germinativa aos cinco meses. O declínio no desenvolvimento das plântulas, independente da condição de armazenamento dos diásporos, ocorre antes da perda da capacidade germinativa.

ABSTRACT Storage of diaspores makes it possible to provide seedlings for reforestation programs or restoration of degraded areas, especially for perennial species that do not regularly produce diaspores or when germination is difficult and slow. The objective of the present study was to verify the physiological potential of Schinopsis brasiliensis diaspores stored in two environments for 12 months, with subsequent manual scarification of the endocarp. The experimental design was entirely randomized, using a 2 × 7 × 2 factorial scheme, with two environments (natural and refrigerator), seven periods (0, 2, 4, 6, 8, 10 and 12 months) of storage, and two physical conditions of the endocarp (intact and scarified). The study analyzed water content, emergence, speed index and mean emergence time, length and dry mass of the aerial part and root system, and collar diameter of the seedlings. The 12 month storage did not overcome the tegument dormancy of S. brasiliensis diaspores. After storage in the natural environment, manual scarification favored emergence and the seedlings' speed of establishment. The diaspores presented increased germination capacity at five months and decreased seedling development before losing their germination capacity, regardless of storage conditions.