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(-)-Carvone, a ketone monoterpene, is the main component of essential oils from several medicinal plants and has been reported to have anti-arthriric, anticonvulsive, antidiabetic, anti-inflammatory, anticancer, and immunomodulatory effects. Therefore, this study aimed to investigate the spasmolytic activity of (-)-carvone in rodent models. The isolated virgin rat uterus was mounted in an organ bath apparatus, and the relaxing effect of ( -)-carvone and its mechanism of action were evaluated in tonic contractions induced by carbachol, KCl, PGF2α, or oxytocin. The animal model of primary dysmenorrhea was replicated with the injection of estradiol benzoate in female mice for three consecutive days, followed by intraperitoneal administration of oxytocin. Non-clinical acute toxicity evaluation was also performed. (-)-Carvone potency and effectiveness were larger in carbachol (pEC50 = 5.41 ± 0.14 and Emax = 92.63 ± 1.90% at 10-3 M) or oxytocin (pEC50 = 4.29 ± 0.17 and Emax = 86.69 ± 1.56% at 10-3 M) contractions. The effect of ( -)-carvone was altered in the presence of 4-aminopyridine, glibenclamide, L-NAME, or methylene blue. Mice pre-treated with (-)-carvone at a dose of 100 mg/kg showed a significant reduction in the number of writhing after oxytocin administration. No toxicity was observed after oral administration of 1 g/kg ( -)-carvone. Taken together, we showed that (-)-carvone reduced writhing by a spasmolytic effect, probably through the participation of KV and KATP channels and the nitric oxide pathway.

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Traumatic brain injury leads to glutamate release, which overstimulates N-methyl-D-aspartate (NMDA) receptors, leading to neurotoxicity and cytotoxic edema. NMDA receptor antagonists may offer neuroprotection by blocking this pathway. The objective of this systematic review is to assess the efficacy of NMDA receptor antagonists for traumatic brain injury-induced brain edema in rodent models. This systematic review followed Cochrane Handbook guidelines and registered its protocol in PROSPERO (ID: CRD42023440934). Here, we included controlled rodent animal models comparing NMDA antagonist use with a placebo treatment. Outcome measures included the reduction of cerebral edema, Neurobehavioral Severity Scale, and adverse effects. The search strategy used Medical Subject Headings terms related to traumatic brain injury and NMDA receptor antagonists. The Collaborative Approach to Meta Analysis and Review of Animal Experimental Studies (CAMARADES) checklist and Systematic Review Centre for Laboratory Animal Experimentation's (SYRCLE's) tools were used to measure the quality and bias of included studies. The synthesis of results was presented in a meta-analysis of standard mean difference. Sixteen studies were included, with the predominant drugs being ifenprodil, MK-801, magnesium, and HU-211. The subjects consisted of Sprague-Dawley or Sabra rats. The analysis showed a significant reduction in brain edema with NMDA antagonist treatment (Standardized mean difference [SMD] - 1.17, 95% confidence interval [CI] - 1.59 to - 0.74, p < 0.01), despite high heterogeneity (I2 = 72%). Neurobehavioral Severity Scale also significantly improved (mean difference - 3.32, 95% CI - 4.36 to - 2.28, p < 0.01) in animals receiving NMDA antagonists. Administration within 1 h after injury showed a modest enhancement in reducing brain edema compared with the baseline (SMD - 1.23, 95% CI - 1.69 to - 0.77, p < 0.01). Studies met standards for animal welfare and model appropriateness. Although baseline comparability and selective reporting bias were generally addressed, key biases such as randomization, allocation concealment, and blinding were often unreported. Overall, NMDA antagonists exhibit promising efficacy in the treatment of traumatic brain injury. Notably, our systematic review consistently demonstrated a significant reduction in brain edema with compounds including HU-211 and NPS 150.

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The article presents the results of qualitative action research on armed violence with health and education professionals and territorial community services in Manguinhos, Rio de Janeiro, Brazil. It is justified by the urgent nature of this violence in the territory and aims to identify its impacts on their health and work, coping, protection, and care strategies. The effects of armed violence on health and education professionals and the territory are discussed through interviews and focus groups with participant observation, identifying some of its transversalities, such as the Brazilian State racist public security policy based on a warlike logic of confrontation with groups with armed control of the territory, which makes life precarious by exposing residents and workers to constant risks, weakening the community fabric and preventing full access to health and education.

O artigo apresenta resultados de uma pesquisa qualitativa sobre violência armada, do tipo pesquisa-ação, com profissionais de saúde e de educação e serviços comunitários territoriais em Manguinhos/RJ. Justifica-se pela premência dessa violência no território, tendo como objetivo identificar seus impactos na saúde e no trabalho, assim como as estratégias de enfrentamento, proteção e cuidado empreendidas. A partir de entrevistas e grupos focais com profissionais de saúde e da educação e observação participante, discutem-se os efeitos da violência armada sobre elas(es) e o território, identificando algumas de suas transversalidades, como a política de segurança pública racista empreendida pelo Estado brasileiro, baseada numa lógica bélica de confronto com grupos que têm domínio armado de território, que precariza a vida ao expor moradoras(es) e trabalhadoras(es) a riscos constantes, enfraquece o tecido comunitário e impede o pleno acesso à saúde e à educação.

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AIM: This study evaluated the impact of the partial exposition of the nonabsorbable membrane (dPTFE) on microbial colonization during bone healing. MATERIALS AND METHODS: Patients indicated for tooth extraction were randomized to dPTFE group (n = 22) - tooth extraction and alveolar ridge preservation (ARP) using an intentionally exposed dPTFE membrane and USH group (n = 22) - tooth extraction and unassisted socket healing. Biofilm samples were collected at the barrier in the dPTFE and on the natural healing site in the USH after 3 and 28 days. Samples from the inner surface of the dPTFE barrier were also collected (n = 13). The microbiome was evaluated using the Illumina MiSeq system. RESULTS: Beta diversity was different from 3 to 28 days in both groups, and at 28 days, different microbial communities were identified between therapies. The dPTFE was characterized by a higher prevalence and abundance of gram-negative and anaerobic species than USH. Furthermore, the inner surface of the dPTFE membrane was colonized by a different community than the one observed on the outer surface. CONCLUSION: Intentionally exposed dPTFE membrane modulates microbial colonization in the ARP site, creating a more homogeneous and anaerobic community on the inner and outer surfaces of the membrane. CLINICAL RELEVANCE: DPTFE promoted faster biofilm colonization and enrichment of gram-negative and anaerobes close to the regenerated site in the membrane's inner and outer surfaces. dPTFE membrane can be used exposed to the oral site, but approaches for biofilm control should still be considered. The study was retrospectively registered at Clinicaltrials.gov (NCT04329351).

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Objetivo: relatar experiências vivenciadas por estagiárias de enfermagem, da Universidade Federal do Vale do São Francisco, durante as atividades de estágio em uma Unidade Básica de Saúde do município de Petrolina-PE. Trata-se de um estudo descritivo, do tipo relato de experiência, desenvolvido a partir da atuação das estagiárias em um serviço de atenção básica no período de janeiro a abril de 2022. Descrição da experiência: As atividades desenvolvidas durante esse período mostraram os desafios que envolvem a rotina do profissional de enfermagem, bem como suas atribuições e responsabilidades com a população adscrita. Destaca-se que a experiência permitiu a aproximação com o Sistema Único de Saúde em um contexto de pandemia, sendo possível identificar as dificuldades enfrentadas na rotina e a necessidade de reinventar o processo de trabalho para garantir assistência de qualidade aos usuários. As atividades desenvolvidas e/ou acompanhadas foram: atendimento aos sintomáticos respiratórios; atendimento às pessoas com arboviroses; notificação de doenças e agravo; vacinação; saúde da mulher e planejamento familiar e reprodutivo; pré-natal; desfecho de gestação; saúde da criança e adolescente; ações voltadas ao rastreio e tratamento de casos de hanseníase; curativos e outros procedimentos; consulta compartilhada; visita domiciliar; territorialização e perfil epidemiológico; e gerenciamento de serviços de saúde. Conclusões: O Estágio Curricular Supervisionado configurou-se como ferramenta importante para o crescimento pessoal e profissional, a partir da aproximação com o cenário de trabalho e vivências que exigiam o raciocínio clínico para a tomada de decisão em enfermagem.

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Background: Fleas are ectoparasitic insects with holometabolous development. It has a hematophagous habit with mouthparts adapted to sting and suck its hosts. There are about 3000 species in the world, ∼61 in Brazil, and 19 in Rio Grande do Sul state. The objective of the research is to catalog the diversity of fleas recorded in the state, their respective hosts, and endosymbionts. Materials and Methods: To this end, a search was carried out in the scientific literature, from articles, books, to abstracts submitted to congresses. Results: The 19 species of fleas occurring in Rio Grande do Sul are divided into 7 families and 10 genera. These ectoparasites, in addition to being found in the environment, were associated with 10 different families of hosts in Rio Grande do Sul, and on the endosymbiont, agents found associated with fleas, there were 7 different species. The main agents researched in the state are Rickettsia spp. and Bartonella spp. The relationships between parasites, hosts, environment, and etiological agents present different scenarios, whether anthropized or conserved, but unknown. Sometimes, this overlap, a factor that aggravates the possibility of spillovers, either from cosmopolitan fleas in these conserved areas, or from their endosymbionts. Conclusion: Thus, it is important to characterize the environment so that the complexities of each location are known for the adoption of environmental and public health policies in each case. The challenges are extensive, but necessary in view of the One Health perspective.

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This longitudinal study aimed to analyze the influence of physical activity (PA) on the relationship between body adiposity and cardiac autonomic modulation (CAM) in women survivors of breast cancer. We collected body adiposity through electrical bioimpedance considering body fat percentage (BFP), CAM through heart rate variability (considering RMSSD, SDNN, PNN50, LF (m2), HF (m2), SD1 indexes and SD1/SD2 ratio) and PA through a questionnaire in 64 participants (58.0 ± 9.6 years), recruited through the local association of support for breast cancer and by direct indications from city mastologists. After insertion of PA into the multivariate statistical model, significant attenuation was observed in the relationship between body adiposity and CAM for the indices: SDNN (ß = -0.94; 95 percent CI: -1.93; 0.04; p = .060) and SD1/SD2 (ß = -0.01;95 percent CI = -0.02; 0.001; p = .065). In conclusion, it was observed that PA was able to mitigate the relationships between BFP and CAM (considering SDNN index and SD1/SD2 ratio) in breast cancer survivors.

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Wound healing is a natural regenerative response to tissue injury and the conventional treatments consists of the use wound dressings with local administration of medicines, but, in some cases, are only partially effective and limited by toxicity or ineffective anti-microbial protection. Medicinal plants such as Lippia sidoides and Myracrodruon urundeuva have shown interesting pharmacological activities, allied to this, the association of these medicinal plants and nanotechnology, could mean an advantage in relation to classical approach. This study investigated the effect of a nanogel loaded with Lippia sidoides essential oil and Myracrodruon urundeuva extract (NAA) in an excisional wound healing model in rats. Animals were anesthetized and skin wounds were made using a metal punch. The groups were treated with vehicle, NAA or collagenase gel, for 7, 14 or 21 days and then sacrificed for tissue analysis. NAA did not show acute dermal irritation, further significantly reduced (p<0.05) the final wound area, accelerated the wound contraction and organization of collagen in the group treated for 14 days. The data presented here demonstrate the therapeutic potential for the use of nanotechnology associated with medicinal plants and provides evidence that corroborate with the use of L. sidoides and M. urundeuva as healing medicinal plants.

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Resumo O artigo apresenta resultados de uma pesquisa qualitativa sobre violência armada, do tipo pesquisa-ação, com profissionais de saúde e de educação e serviços comunitários territoriais em Manguinhos/RJ. Justifica-se pela premência dessa violência no território, tendo como objetivo identificar seus impactos na saúde e no trabalho, assim como as estratégias de enfrentamento, proteção e cuidado empreendidas. A partir de entrevistas e grupos focais com profissionais de saúde e da educação e observação participante, discutem-se os efeitos da violência armada sobre elas(es) e o território, identificando algumas de suas transversalidades, como a política de segurança pública racista empreendida pelo Estado brasileiro, baseada numa lógica bélica de confronto com grupos que têm domínio armado de território, que precariza a vida ao expor moradoras(es) e trabalhadoras(es) a riscos constantes, enfraquece o tecido comunitário e impede o pleno acesso à saúde e à educação.

Abstract The article presents the results of qualitative action research on armed violence with health and education professionals and territorial community services in Manguinhos, Rio de Janeiro, Brazil. It is justified by the urgent nature of this violence in the territory and aims to identify its impacts on their health and work, coping, protection, and care strategies. The effects of armed violence on health and education professionals and the territory are discussed through interviews and focus groups with participant observation, identifying some of its transversalities, such as the Brazilian State racist public security policy based on a warlike logic of confrontation with groups with armed control of the territory, which makes life precarious by exposing residents and workers to constant risks, weakening the community fabric and preventing full access to health and education.

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INTRODUCTION: Carvacrol is a phenolic constituent of essential oils that has antinociceptive, anti-inflammatory, and antioxidant activities. METHOD: This study aimed to evaluate the in vitro spasmolytic and in vivo anti-dysmenorrhea potential of a nanoemulsion-containing carvacrol (nanoCARV). RESULTS: In isolated rat uterus, nanoCARV reduced spontaneous contractions (pEC50 = 3.91 ± 0.25) and relaxed preparations pre-contracted with oxytocin (pEC50 = 3.78 ± 0.2), carbachol (pEC50 = 4.15 ± 0.4), prostaglandin F2α (pEC50 = 3.00 ± 0.36), and KCl (pEC50 = 3.98 ± 0.32). The investigation of the mechanism of action revealed significant differences (p < 0.05) between the pEC50 values of nanoCARV in the absence or presence of aminophylline or tetraethylammonium. In a primary dysmenorrhea model, treatment with nanoCARV reduced the number of oxytocin-induced abdominal writhes. CONCLUSIONS: These data indicate that the anti-dysmenorrhea effect of nanoCARV may be related to the relaxation of uterine smooth muscle, with participation of the cAMP signaling pathway and potassium channels.

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Resumo Objetivo Identificar a prevalência de letramento funcional em saúde e analisar a associação entre os níveis de letramento funcional em saúde e as variáveis clínicas e sociodemográficas em pacientes renais crônicos não dialíticos. Métodos Estudo transversal realizado com 167 renais crônicos em acompanhamento no ambulatório de nefrologia de um município de grande porte do estado de Minas Gerais, Brasil. Para as entrevistas foram utilizados questionário sociodemográfico e clínico e a versão brasileira do Short Assessment of Health Literacy for Portuguese Speaking Adults - SAHLPA-18, para mensurar o letramento funcional em saúde. Realizado estatística descritiva para variáveis sociodemográficas e clínicas; testes de correlação e modelos de regressão lineares para associação com letramento funcional em saúde. Resultados A maior parte dos participantes era idosa com mediana de idade de 68 anos, 33,3% (56 pacientes) se encontravam no estágio 3B da doença renal crônica e 53,9% (90 pacientes) apresentaram letramento funcional em saúde inadequado. Não houve associação entre os níveis de letramento funcional em saúde e as variáveis clínicas. A maioria referiu não usar internet e o estágio mais avançado da doença renal crônica apresentou menores escores de letramento. Piores escores de letramento funcional em saúde também foi identificado naqueles com menor renda. Conclusão A maioria dos participantes apresentou letramento funcional em saúde inadequado. As variaveis clínicas não foram preditoras dos ecores de letramento. No entanto, escores mais baixos de letramento em saúde foram identificados naqueles em estágio mais avancado da doença renal, menor renda e menor uso da internet.

Resumen Objetivo Identificar la prevalencia de la alfabetización funcional en salud y analizar la asociación entre los niveles de alfabetización funcional en salud y las variables clínicas y sociodemográficas en pacientes renales crónicos no dializados. Métodos Estudio transversal realizado con 167 pacientes renales crónicos con seguimiento en consultorios externos de nefrología de un municipio de gran porte del estado de Minas Gerais, Brasil. Para las entrevistas se utilizó un cuestionario sociodemográfico y clínico y la versión brasileña del Short Assessment of Health Literacy for Portuguese Speaking Adults - SAHLPA-18, para medir la alfabetización funcional en salud. Se realizó estadística descriptiva para variables sociodemográficas y clínicas, pruebas de correlación y modelos de regresión lineales para asociación con alfabetización funcional en salud. Resultados La mayoría de los participantes eran personas mayores de 68 años de mediana de edad, el 33,3 % (56 pacientes) se encontraba en la etapa 3B de la enfermedad renal crónica y el 53,9 % (90 pacientes) presentó alfabetización funcional en salud inadecuada. No hubo asociación entre los niveles de alfabetización funcional en salud y las variables clínicas. La mayoría relató que no usaba internet y la etapa más avanzada de la enfermedad renal crónica presentó menor puntaje de alfabetización. Se identificaron peores puntajes de alfabetización funcional en salud en aquellos con menores ingresos. Conclusión La mayoría de los participantes presentó alfabetización funcional en salud inadecuada. Las variables clínicas no fueron predictoras de los puntajes de alfabetización. Sin embargo, se identificaron puntajes más bajos de alfabetización en salud en aquellos en etapa más avanzada de la enfermedad renal, con menores ingresos y menor uso de internet.

Abstract Objective To identify the prevalence of functional health literacy and analyze the association between functional health literacy levels and clinical and sociodemographic variables in non-dialysis chronic kidney disease patients. Methods This is a cross-sectional study carried out with 167 chronic kidney disease patients being monitored at the nephrology outpatient clinic of a large city in the state of Minas Gerais, Brazil. For the interviews, a sociodemographic and clinical questionnaire and the Brazilian version of the Short Assessment of Health Literacy for Portuguese Speaking Adults (SAHLPA-18) were used to measure functional health literacy. Descriptive statistics were performed for sociodemographic and clinical variables, and correlation tests and linear regression models for association with functional health literacy. Results Most participants were older adults with a median age of 68 years, 33.3% (56 patients) were in stage 3B of chronic kidney disease and 53.9% (90 patients) had inadequate functional health literacy. There was no association between functional health literacy levels and clinical variables. The majority reported not using the internet and the more advanced stage of chronic kidney disease had lower literacy scores. Worse functional health literacy scores were also identified in those with lower income. Conclusion Most participants had inadequate functional health literacy. Clinical variables were not predictors of literacy scores. However, lower health literacy scores were identified in those with more advanced stage kidney disease, lower income and less internet use.

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Resumo Introdução Desastres trazem consequências humanas, socioeconômicas e ambientais e agravam situações de vulnerabilidade. Tanto países centrais, altamente industrializados, como países com dificuldades econômicas estão sujeitos a esses eventos. No Brasil, a pandemia de COVID-19 e o rompimento de barragens evidenciam dificuldades em se antecipar e responder esses tipos de eventos. Ações da terapia ocupacional no campo das emergências e desastres são escassas na literatura, notadamente na esfera da prevenção. Objetivo Explorar as evidências da contribuição de terapeutas ocupacionais no domínio da gestão de risco e desastres a partir das características, prioridades e principais áreas de interesse da produção intelectual em terapia ocupacional. Método Uma pesquisa abrangente será conduzida nos periódicos Disasters, Hazards & Crisis in Public Policy, International Journal of Mass Emergencies and Disasters, and Risk, International Journal of Risk Reduction e Journal of Contingencies and Crisis Management, assim como nas bases de dados Occupational Therapy Literature Search Service (OTDBASE), PubMed e Web of Science. Critérios de inclusão Ações e experiências no âmbito da terapia ocupacional, notadamente aquelas de terapeutas ocupacionais na gestão de riscos e desastres, encontradas em estudos revisados por pares, que adotem métodos quantitativos, qualitativos e mistos, nos idiomas espanhol, inglês e português, sem restrição temporal. A abordagem preconizada pelo Joanna Briggs Institute (JBI) para seleção de estudos, avaliação crítica, extração e síntese de dados será utilizada.

Abstract Introduction Disasters bring human, socioeconomic, and environmental consequences and exacerbate situations of vulnerability. Both highly industrialized core countries and those facing economic difficulties are subject to these events. In Brazil, the COVID-19 pandemic and the collapse of dams highlight difficulties in anticipating and responding to these types of events. Actions of occupational therapy in the field of emergencies and disasters are scarce in the literature, notably in the sphere of prevention. Objective To explore the evidence of the contribution of occupational therapists in the field of risk management and disasters based on the characteristics, priorities, and main areas of interest of intellectual production in occupational therapy. Method A comprehensive search will be conducted in the journals Disasters, Hazards & Crisis in Public Policy, International Journal of Mass Emergencies and Disasters, and Risk, International Journal of Risk Reduction, and Journal of Contingencies and Crisis Management, as well as in the databases Occupational Therapy Literature Search Service (OTDBASE), PubMed, and Web of Science. Inclusion Criteria Actions and experiences in the field of occupational therapy, notably those of occupational therapists in risk and disaster management, found in peer-reviewed studies adopting quantitative, qualitative, and mixed methods, in Spanish, English, and Portuguese, without temporal restriction. The approach advocated by the Joanna Briggs Institute (JBI) for study selection, critical appraisal, and data collection and synthesis will be used.

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Coumarins are compounds with scientifically proven antibacterial properties, and modifications to the chemical structure are known to improve their effects. This information is even more relevant with the unbridled advances of antibiotic resistance, where Staphylococcus aureus and its efflux pumps play a prominent role. The study's objective was to evaluate the potential of synthetic coumarins with different substitutions in the C-3 position as possible inhibitors of the NorA and MepA efflux pumps of S. aureus. For this evaluation, the following steps took place: (i) the determination of the minimum inhibitory concentration (MIC); (ii) the association of coumarins with fluoroquinolones and ethidium bromide (EtBr); (iii) the assessment of the effect on EtBr fluorescence emission; (iv) molecular docking; and (v) an analysis of the effect on membrane permeability. Coumarins reduced the MICs of fluoroquinolones and EtBr between 50% and 87.5%. Coumarin C1 increased EtBr fluorescence emission between 20 and 40% by reinforcing the evidence of efflux inhibition. The molecular docking results demonstrated that coumarins have an affinity with efflux pumps and establish mainly hydrogen bonds and hydrophobic interactions. Furthermore, C1 did not change the permeability of the membrane. Therefore, we conclude that these 3-substituted coumarins act as inhibitors of the NorA and MepA efflux pumps of S. aureus.

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A cartilha é um material educativo fruto da pesquisa "Migração, saúde e violências: experiências de trabalhadoras(es) migrantes e refugiadas(os) no Rio de Janeiro", durante a qual foram escutadas(os) migrantes e refugiadas(os) residentes no Brasil, especificamente no estado do Rio de Janeiro. Os deslocamentos humanos são uma realidade de dimensões globais e garantir o acesso e a permanência de migrantes e refugiadas(os) em postos de trabalho seguros, saudáveis e não violentos deve ser uma das finalidades de sociedades que prezam pela justiça social. A migração e o refúgio podem trazer mudanças na forma de organização familiar e a necessidade de buscar emprego, casa, estudo, relações de amizade e redes de apoio. Ao mesmo tempo em que a migração e o refúgio podem ser experiências que tragam novos recomeços, os sentimentos de incerteza, insegurança, medo, saudades e preocupação estão presentes no cotidiano de migrantes e refugiadas(os) e se expressam também na esfera do trabalho. Associado a isso, o mundo do trabalho tem passado por profundas transformações, principalmente nas últimas cinco décadas, que vêm impactando a vida de trabalhadoras(es), como o aumento do desemprego, contratações temporárias, baixos salários e a permanência de trabalho escravizado e forçado. Portanto, é preciso reconhecê-las para enfrentá-las, de modo a garantir um ambiente de trabalho seguro e saudável para todas(os). (AU)

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Microorganisms are ubiquitous in diverse habitats and studying their chemical interactions with the environment and comprehend its complex relations with both hosts and environment, are crucial for the development of strategies to control microbial diseases. This chapter discusses the importance of studying microorganisms with agricultural benefits, using specialized metabolites as examples. Herein we highlight the challenges and opportunities in utilizing microorganisms as alternatives to synthetic pesticides and fertilizers in agriculture. Genome-guided investigations and improved analytical methodologies are necessary to characterize diverse and complex biomolecules produced by microorganisms. Predicting and isolating bioproducts based on genetic information have become a focus for researchers, aided by tools like antiSMASH, BiG-SCAPE, PRISM, and others. However, translating genomic data into practical applications can be complex. Therefore, integrating genomics, transcriptomics, and metabolomics enhances chemical characterization, aiding in discovering new metabolic pathways and specialized metabolites. Additionally, elicitation is one promising strategy to enhance beneficial metabolite production. Finally, identify and characterize microbial secondary metabolites remain challenging due to their low production, complex chemical structure characterization and different environmental factors necessary for metabolite in vitro production.

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This study investigated the impact of a modified implant macrogeometry on peri-implant healing and its effect on bone-related molecules in rats. Eighteen rats received one implant in each tibia: the control group received implants with conventional macrogeometry and the test group received implants with modified macrogeometry. After 30 days, the implants were removed for biomechanical analysis and the bone tissue around them was collected for quantifying gene expression of OPN, Runx2, ß-catenin, BMP-2, Dkk1, and RANKL/OPG. Calcein and tetracycline fluorescent markers were used for analyzing newly formed bone at undecalcified sections of the tibial implants. These fluorescent markers showed continuous bone formation at cortical bone width and sparse new bone formed along the medullary implant surface in both groups. However, higher counter-torque values and upregulation of OPN expression were achieved by test implants when compared to controls. The modified macrogeometry of implants optimized peri-implant healing, favoring the modulation of OPN expression in the osseous tissue around the implants.

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Mundialmente, a produção de hortaliças, incluindo os pimentões, está relacionada ao manejo intensivo do solo e, consequentemente, à degradação do mesmo. A implantação de manejos conservacionistas têm se intensificado para a redução dos danos resultantes da produção de manejo convencional. Neste sentido, objetivodo estudo foi de avaliar o desenvolvimento e produtividade do pimentão cultivado em sistema de plantio direto sobre diferentes coberturas vegetais, indicando as espécies com maior potencial pera essa utilização. Para tanto, os tratamentos utilizados foram: Controle (manejo convencional); milheto; crotalária; combinação de coberturas (milheto e crotalária) e plantas espontâneas. As variáveis avaliadas foram: fotossíntese líquida, condutância estomática, concentração de CO2, transpiração, eficiência do uso da água, eficiência instantânea de carboxilação e produtividade. Verificou-se que todas coberturas, melhoraram as características de comprimento e massa de fruto. No quesito de número de frutos por planta e produtividade a cobertura mix superou o restante. A cobertura com plantas espontâneas resultou em maiores concentração intracelular, condutância estomática e transpiração, enquanto que o tratamento mix possibilitou a obtenção de maior valor de fotossíntese líquida, eficiência do uso da água e eficiência instantânea de carboxilação. O maior incremento na produção e capacidade fotossintética ocorreu na utilização de milheto e crotalária.(AU)

Worldwide, the production of vegetables, including peppers, is related to intensive soil management and, consequently, to soil degradation. The implementation of conservationist managements has been intensified to reduce the damage resulting from the production of conventional management. In this sense, the objective of the study was to evaluate the development and productivity of sweet pepper grown in a no-tillage system under different vegetation cover, indicating the species with the greatest potential for this use. Therefore, the treatments used were: Control (conventional management); millet; sunn hemp; combination of cover crops (millet and sunn hemp) and spontaneous plants. The variables evaluated were: net photosynthesis, stomatal conductance, CO2 concentration, transpiration, water use efficiency, instantaneous carboxylation efficiency and productivity. It was found that all coverages improved the characteristics of length and fruit mass. In terms of number of fruits per plant and productivity, the mix coverage surpassed the rest. Coverage with weeds resulted in higher intracellular concentration, stomatal conductance and transpiration, while the mix treatment made it possible to obtain higher net photosynthesis value, water use efficiency and instantaneous carboxylation efficiency. The greatest increase in production and photosynthetic capacity occurred in the use of millet and sunn hemp.(AU)

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RESUMO

This study aimed to identify sociodemographic and academic factors associated with unhealthy lifestyles among Brazilian undergraduate nursing students. A cross-sectional study was completed by 286 nursing students in Brazil. Multinomial logistic regression was conducted to examine the association between sociodemographic and academic variables with the latent lifestyle indicator. The model fit's validity was assessed using Akaike information coefficient estimation, Hosmer-Lemeshow test, and the ROC curve. A high health risk lifestyle was 2.7 times more likely among students aged 18-24 years than students aged 25 years or older (OR = 2.7, 95% CI = [1.18, 6.54] p = 0.02); 2.3 times more likely among students with ≥400 h of semester time (OR = 2.3, 95% CI = [0.93, 5.90], p = 0.07); and 3.8 times more likely among female students (OR = 3.8, 95% CI = [0.82, 8.12], p = 0.09). A moderate health risk lifestyle was 1.8 times more likely among students from the 6th to 10th semesters (OR = 1.8, 95% CI = [-0.95, 3.75], p = 0.07). Sociodemographic and academic factors were associated with unhealthy lifestyles. Health promotion efforts are necessary to improve nursing students' health behaviors.

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