Sedação consciente com óxido nitroso em clínica odontológica: principais indicações e segurança / Concious sedation with nitrous oxide in dental clinics: main indications and safety

A ansiedade desempenha um papel significativo na experiência de tratamentos odontológicos e pode resultar em evasão por parte dos pacientes. Isso é especialmente relevante para grupos como pacientes pediátricos e aqueles com necessidades especiais, que muitas vezes requerem técnicas de controle de comportamento ou sedação devido à ansiedade. No entanto, a ansiedade não deve ser negligenciada mesmo em pacientes sem odontofobia grave, pois está relacionada à percepção da dor durante os procedimentos odontológicos. A sedação consciente com óxido nitroso surge como uma alternativa valiosa para reduzir a ansiedade e melhorar o conforto do paciente. Ao contrário dos benzodiazepínicos e da anestesia geral, o óxido nitroso atua no sistema nervoso de uma forma que deprime levemente o córtex cerebral, sem afetar o centro respiratório. Isso permite o uso de concentrações subanestésicas do gás, administradas com oxigênio por meio de uma máscara nasal. O óxido nitroso é de rápida ação, pouco solúvel e tem um período de recuperação breve, permitindo que os pacientes retornem rapidamente às atividades normais. Este estudo, uma revisão de literatura, explora o mecanismo de ação do óxido nitroso, suas indicações na prática odontológica e examina possíveis riscos e contraindicações associados ao seu uso. Em resumo, a sedação consciente com óxido nitroso se mostra como uma opção promissora para aliviar a ansiedade e melhorar a experiência de tratamentos odontológicos, beneficiando uma ampla gama de pacientes, não apenas aqueles com fobias graves.

Anxiety, in an outpatient dental environment, plays a fundamental role in pain and discomfort expectation, resulting in increase of treatment evasion. The groups that present greater difficulty in cooperation are children and special needs patients, with behavioral control and sedation being often necessary. Nevertheless, literature emphasizes that anxiety must be evaluated as a critical stage and its management done not only in patients with elevated anxiety levels, but being crucial on pain control of every dental patient, since higher grades of restlessness equals higher pain perception. It is known that the use of nitrous oxide in conscious sedation proves to be an useful tool on reducing anxiety and enabling comfortable interventions, indicating that it is an alternative to the use of benzodiazepines and general anesthesia. The drug acts on the nervous system, promoting a slight depression of the cerebral cortex and, unlike benzodiazepines, which act at the medulla level, it does not depress the respiratory center. The technique uses sub-anesthetic concentrations of nitrous oxide delivered with oxygen through a nasal mask. Nitrous oxide is poorly soluble and has a rapid onset of action, being therefore associated with a rapid recovery period. The duration of sedation is controlled and the patient can quickly return to normal activities. This paper is a narrative review with the objective of exploring the mechanism of action of this gas, evaluating its indications for use in dental clinic and verifying possible risks and contraindications.

Seasonality of the incidence of bronchiolitis in infants — Brazil, 2016-2022: An interrupted time-series analysis / Sazonalidade da incidência de bronquiolite em lactentes — Brasil, 2016-2022: Uma análise de série temporal interrompida

ABSTRACT Objective: To evaluate the seasonality of acute bronchiolitis in Brazil during the 2020-2022 season and compare it with the previous seasons. Methods: Data from the incidence of hospitalizations due to acute bronchiolitis in infants <1 year of age were obtained from the Department of Informatics of the Brazilian Public Health database for the period between 2016 and 2022. These data were also analyzed by macro-regions of Brazil (North, Northeast, Southeast, South, and Midwest). To describe seasonal and trend characteristics over time, we used the Seasonal Autoregressive Integrated Moving Averages Model. Results: Compared to the pre-COVID-19 period, the incidence of hospitalizations related to acute bronchiolitis decreased by 97% during non-pharmacological interventions (March 2020 - August 2021) but increased by 95% after non-pharmacological interventions relaxation (September 2021 - December 2022), resulting in a 16% overall increase. During the pre-COVID-19 period, hospitalizations for acute bronchiolitis followed a seasonal pattern, which was disrupted in 2020-2021 but recovered in 2022, with a peak occurring in May, approximately 4% higher than the pre-COVID-19 peak. Conclusions: This study underscores the significant influence of COVID-19 interventions on acute bronchiolitis hospitalizations in Brazil. The restoration of a seasonal pattern in 2022 highlights the interplay between public health measures and respiratory illness dynamics in young children.

RESUMO Objetivo: Avaliar a sazonalidade da bronquiolite aguda no Brasil durante a temporada 2020-2022 e compará-la com a das temporadas anteriores. Métodos: Os dados de incidência de internações por bronquiolite aguda em lactentes <1 ano de idade foram obtidos do Departamento de Informática da base de dados da Saúde Pública Brasileira para o período entre 2016 e 2022. Esses dados também foram analisados por macrorregiões do Brasil (Norte, Nordeste, Sudeste, Sul e Centro-Oeste). Para descrever características sazonais e de tendência ao longo do tempo, utilizamos o Modelo de Médias Móveis Integradas Autorregressivas Sazonais. Resultados: Em comparação com o período pré-COVID-19, a incidência de hospitalizações relacionadas com bronquiolite aguda diminuiu 97% durante as intervenções não farmacológicas (março de 2020 - agosto de 2021), mas aumentou 95% após a flexibilização das intervenções não farmacológicas (setembro de 2021 - dezembro de 2022), resultando no aumento geral de 16%. Durante o período pré-COVID-19, as hospitalizações por bronquiolite aguda seguiram um padrão sazonal, que foi interrompido em 2020-2021, mas recuperaram-se em 2022, com um pico ocorrido em maio, aproximadamente 4% superior ao pico pré-COVID-19. Conclusões: Este estudo ressalta a influência significativa das intervenções contra a COVID-19 nas hospitalizações por bronquiolite aguda no Brasil. A restauração de um padrão sazonal em 2022 sublinha a interação entre as medidas de saúde pública e a dinâmica das doenças respiratórias em crianças pequenas.

Association between the practice of fitness-related exercises and body image dissatisfaction in adolescents from Curitiba (PR), Brazil / Associação entre a prática de exercícios físicos relacionados ao fitness e insatisfação com a imagem corporal em adolescentes de Curitiba (PR), Brasil

ABSTRACT Objective: The aim of this study was to analyze the association between participation in fitness-related exercises (FRE) and body image dissatisfaction (BID) in adolescents and evaluate the interaction between physical exercise and nutritional status in this association. Methods: A cross-sectional study was conducted in 2015 involving 799 adolescents (10-16 years old) from 14 public schools in Curitiba (PR), Brazil. BID was assessed using the Body Shape Questionnaire and the Silhouette Scale. The FRE was classified as "does not practice," "practices ≤300 min/week," and "practices >300 min/week" by the Physical Activity Questionnaire for Adolescents. Poisson and multinomial logistic regressions, adjusted for sex, sexual maturation, and nutritional status analyzed the association of FRE and BID. Results: The BID prevalence was 28.3%; 52.4% of the adolescents wanted to reduce their silhouettes; and 48.7% did not practice FRE. Adolescents who practiced FRE >300 min/week had a 28% higher prevalence for some level of BID (PR 1.28; 95%CI 1.08-1.52) and a 46% lower chance of wanting to reduce silhouettes (OR 0.54; 95%CI 0.35-0.82), compared to nonpractitioners. There was no interaction between FRE and nutritional status in association with BID. Conclusions: The adolescents who practice FRE >300 min/week are likely to have some level of BID and are less likely to report the desire to increase their silhouettes, regardless of their nutritional status.

RESUMO Objetivo: Analisar a associação entre a participação em exercícios físicos relacionados ao fitness (EFRF) e a insatisfação com a imagem corporal (IIC) em adolescentes e avaliar a interação entre os exercícios físicos e o estado nutricional nesta associação. Métodos: Estudo transversal realizado em 2015 com 799 adolescentes (10 a 16 anos) de 14 escolas públicas de Curitiba (PR), Brasil. A IIC foi avaliada por meio do Body Shape Questionnaire e da Escala de Silhuetas. A participação em EFRF foi avaliada pelo Questionário de Atividade Física para Adolescentes e classificada em "não pratica", "pratica ≤300 minutos/semana" e "pratica >300 minutos/semana". As regressões de Poisson e logística multinomial, ajustadas por sexo, maturação sexual e estado nutricional, analisaram a associação entre EFRF e IIC. Resultados: A prevalência de IIC foi de 28,3%; 52,4% dos adolescentes queriam reduzir a silhueta e 48,7% não praticavam a EFRF. Adolescentes que praticavam EFRF >300 minutos/semana tiveram prevalência 28% maior para algum nível de IIC (razão de prevalência — RP 1,28; intervalo de confiança de 95% — IC95% 1,08-1,52) e chance 46% menor de querer reduzir silhuetas (OR 0,54; 95IC% 0,35-0,82), comparados aos não praticantes. Não houve interação entre os EFRF e o estado nutricional na associação com IIC. Conclusões: Os adolescentes que praticam EFRF >300 minutos/semana estão mais propensos a apresentar algum nível de IIC e têm menores chances de reportar o desejo de aumentar silhuetas, independentemente do estado nutricional.

Environmental sympatry through time: spatio-temporal distribution and conservation status of two sympatric anuran species (Leptodactylidae) in South America / Simpatría ambiental a través del tiempo: distribución espacio-temporal y estado de conservación de dos especies de anuros simpátricos (Leptodactylidae) en América del Sur

Abstract Introduction: Leptodactylus latinasus and Physalaemus cuqui are sympatric anuran species with similar environmental requirements and contrasting reproductive modes. Climatic configuration determines distribution patterns and promotes sympatry of environmental niches, but specificity/selectivity determines the success of reproductive modes. Species distribution models (SDM) are a valuable tool to predict spatio-temporal distributions based on the extrapolation of environmental predictors. Objectives: To determine the spatio-temporal distribution of environmental niches and assess whether the protected areas of the World Database of Protected Areas (WDPA) allow the conservation of these species in the current scenario and future. Methods: We applied different algorithms to predict the distribution and spatio-temporal overlap of environmental niches of L. latinasus and P. cuqui within South America in the last glacial maximum (LGM), middle-Holocene, current and future scenarios. We assess the conservation status of both species with the WDPA conservation units. Results: All applied algorithms showed high performance for both species (TSS = 0.87, AUC = 0.95). The L. latinasus predictions showed wide environmental niches from LGM to the current scenario (49 % stable niches, 37 % gained niches, and 13 % lost niches), suggesting historical fidelity to stable climatic-environmental regions. In the current-future transition, L. latinasus would increase the number of stable (70 %) and lost (20 %) niches, suggesting fidelity to lowland regions and a possible trend toward microendemism. P. cuqui loses environmental niches from the LGM to the current scenario (25 %) and in the current-future transition (63 %), increasing the environmental sympathy between both species; 31 % spatial overlap in the current scenario and 70 % in the future. Conclusion: Extreme drought events and rainfall variations, derived from climate change, suggest the loss of environmental niches for these species that are not currently threatened but are not adequately protected by conservation units. The loss of environmental niches increases spatial sympatry which represents a new challenge for anurans and the conservation of their populations.

Resumen Introducción: Leptodactylus latinasus y Physalaemus cuqui son especies de anuros simpátricos con requerimientos ambientales similares y modos reproductivos contrastantes. La configuración climática determina los patrones de distribución y promueve la simpatría de los nichos ambientales, pero la especificidad/selectividad determina el éxito de los modos reproductivos. Los modelos de distribución de especies (MDE) son una herramienta valiosa para predecir distribuciones espacio-temporales basadas en la extrapolación de predictores ambientales. Objetivos: Determinar la distribución espacio-temporal de los nichos ambientales y evaluar si las áreas protegidas de la base de Datos Mundial de Áreas Protegidas (DMAP) permiten la conservación de estas especies en el escenario actual y futuro. Métodos: Aplicamos diferentes algoritmos para predecir la distribución y superposición espacio-temporal de nichos ambientales de L. latinasus y P. cuqui dentro de América del Sur en el último máximo glacial (UGM), Holoceno medio, actual y futuro. Evaluamos el estado de conservación de ambas especies con las unidades de conservación de la DMAP. Resultados: Todos los algoritmos aplicados mostraron un alto rendimiento para ambas especies (TSS = 0.87, AUC = 0.95). Las predicciones de L. latinasus mostraron amplios nichos ambientales desde LGM hasta el escenario actual (49 % de nichos estables, 37 % de nichos ganados y 13 % de nichos perdidos), sugiriendo fidelidad histórica por regiones climático-ambientales estables. En la transición actual-futura L. latinasus incrementaría la cantidad de nichos estables (70 %) y perdidos (20 %), sugiriendo fidelidad por regiones de tierras bajas y la posible tendencia hacia el microendemismo. P. cuqui pierde nichos ambientales desde el LGM al escenario actual (25 %) y en la transición actual-futura (63 %), incrementando la simpatría ambiental entre ambas especies; 31 % de superposición espacial en el escenario actual y 70 % en el futuro. Conclusión: Los eventos de sequía extrema y las variaciones de precipitaciones, derivados del cambio climático, sugieren la pérdida de nichos ambientales para estas especies, actualmente no se encuentran amenazadas, pero no están adecuadamente protegidas por las unidades de conservación. La pérdida de nichos ambientales aumenta la simpatría espacial que representa un nuevo desafío para estos anuros y la conservación de sus poblaciones.

Percepção do peso corporal e dificuldades encontradas pelas pessoas com deficiência visual na aquisição, na preparação e no consumo dos alimentos / Perception of body weight and difficulties encounteredby people with visual impairment in acquiring, preparing and consuming food

Objetivo: investigar a percepção do peso corporal e as dificuldades encontradas pelas pessoas com deficiência visual na aquisição, na preparação e no consumo dos alimentos. Metodologia: estudo observacional transversal, com adultos e idosos com deficiência visual em Pelotas/RS, realizado no período de abril a maio de 2023. Foi utilizado um questionário composto de 42 itens. Os dados coletados foram analisados por análise descritiva e analítica, e apresentados como média ± desvio padrão ou percentual. Resultados: a amostra contou com 20 pessoas, predominantemente do sexo feminino e idosas. Em relação ao consumo alimentar, 50% dos participantes consomem feijão, 75% frutas e hortaliças, 50% bebidas adoçadas, biscoitos recheados e doces. Referente à percepção do peso corporal, percebeu-se que a maior parte do grupo sente que está acima do peso adequado e se sentem "insatisfeitos(as)". Sobre as dificuldades encontradas, 85% dos participantes relataram dificuldade extrema para identificar a validade dos alimentos, 70% para comprar alimentos frescos e perecíveis e 40% para usar a faca para cortar e descascar os alimentos. Conclusão: verificou-se que a maior parte do grupo sente que está acima do peso adequado e estão "insatisfeitos(as)" em relação ao peso corporal. Além disso, dependem de outra pessoa para escolher os alimentos a serem comprados, saber o prazo de validade, preparar alimentos que precisam ser porcionados, servir refeições no prato, cortar carnes, descascar vegetais e frutas, utilizar faca, entre outros. Esta dependência pode influenciar diretamente no seu consumo alimentar quando essas pessoas se encontram sozinhas, optando por consumir alimentos industrializados de fácil preparo ou prontos.

Objective: to investigate the perception of body weight and the difficulties encountered by people with visual impairments in acquiring, preparing and consuming food. Methodology: cross-sectional observational study, with adults and elderly people with visual impairment in Pelotas/RS, carried out from April to May 2023. A questionnaire composed of 42 items was used. The collected data were analyzed using descriptive and analytical analysis, and presented as mean ± standard deviation or percentage. Results: the sample included 20 people, predominantly female and elderly. Regarding food consumption, 50% of participants consume beans, 75% fruits and vegetables, 50% sweetened drinks, stuffed cookies and sweets. Regarding the perception of body weight, it was noticed that the majority of the group feels that they are overweight and feel "dissatisfied". Regarding the difficulties encountered, 85% of participants reported extreme difficulty in identifying the expiration date of food, 70% in purchasing fresh and perishable foods and 40% in using a knife to cut and peel food. Conclusion: it was found that the majority of the group feels that they are overweight and are "dissatisfied" with their body weight. Furthermore, they depend on someone else to choose the food to be purchased, know the expiration date, prepare food that needs to be portioned, serve meals on the plate, cut meat, peel vegetables and fruits, use a knife, among others. This dependence can directly influence their food consumption when these people are alone, choosing to consume easily prepared or ready-made processed foods.

Promoção da saúde do trabalhador e humanização no trabalho: relato das atividades realizadas na atenção primária e secundária / Promotion of worker's health and humanization at work: report of activities performed in primary and secondary care

Os objetivos deste estudo são: relatar a experiência do desenvolvimento das atividades de sensibilização dos trabalhadores relacionadas à promoção da saúde no ambiente laboral e à humanização no trabalho realizadas em dois serviços de saúde de um município do estado de Minas Gerais e avaliar junto à equipe a realização dessas atividades. As atividades de alongamento, massagens, escalda-pés, dinâmica de grupo e oficina da beleza foram realizadas na atenção primária e secundária. Utilizou-se um questionário e as respostas foram apresentadas por estatística simples. Os trabalhadores avaliaram as atividades como "excelentes"; referiram melhorar o dia de trabalho; sentiram-se valorizados e mais dispostos para o trabalho, além de solicitarem a continuidade de ações de promoção da saúde e humanização no trabalho. Por mais simples que sejam, essas atividades proporcionaram momentos de reflexões e a pausa laboral, tendo em vista a saúde do trabalhador e melhor qualidade de vida no trabalho.

The objectives of this study are: to report the experience of developing awareness activities for workers related to health promotion and humanization at work, carried out in two health services in a municipality in the state of Minas Gerais; and assess with the team these activities. Stretching activities, group dynamics, massages, foot baths, beauty workshop and health promotion were carried out in primary and secondary care. A questionnaire was used and the answers were presented by simple statistics. The workers rated the activities as "excellent"; reported improving their working day; they felt valued and more willing to work, in addition to requesting the continuity of actions to promote health and humanization at work. As simple as they are, these activities provided moments of reflection and a break from work, with a view to the worker's health and better quality of life at work.

Avaliação da influência da pandemia de Covid-19 no risco de desenvolvimento de transtornos alimentares em mulheres / Assessment of the influence of the Covid-19 pandemicon the risk of developing eating disorders in women

Objetivo: verificar a influência da pandemia de Covid-19 no risco de desenvolvimento de transtornos alimentares em mulheres. Metodologia: pesquisa quantitativa, com mulheres com acesso ao computador, a celular e à internet. A coleta de dados foi realizada a partir de um questionário on-line contendo 60 perguntas, com respostas fechadas, que visavam conhecer a sua relação com a alimentação. Foram verificados o consumo alimentar e o risco de desenvolvimento de anorexia nervosa (Eating Attitudes Test - EAT-26) e bulimia nervosa (Bulimic Investigatory Test, Edinburgh- BITE). Resultados: participaram da pesquisa 92 mulheres, sendo que 81,50% (n=75) referiram que ficaram em casa durante a pandemia. Sobre a ingestão de alimentos, 45,70% (n=42) relataram que consumiram diariamente frutas e hortaliças, 55,40% (n=51) ingeriram de 1 a 2 vezes/semana bolachas, salgadinhos, doces e guloseimas e 62,00% (n=57) consumiam embutidos pelo menos 1 vez/semana. Ainda, 18,50% (n=17) apresentaram risco para o desenvolvimento de anorexia nervosa e 83,60% (n=73) risco de bulimia nervosa. Entretanto, analisando se esse risco estava associado à pandemia, verificou-se que não houve diferença significativa entre o grupo que permaneceu em casa e o grupo que saiu para trabalhar (p > 0,05). Conclusão: portanto, grande parte das voluntárias apresentaram um risco de desenvolver algum transtorno alimentar, entretanto, não houve uma relação entre o possível risco de desenvolver transtornos alimentares influenciado pela pandemia.

Objective: to verify the influence of the Covid-19 pandemic on the risk of developing eating disorders in women. Methodology: quantitative research, with women with access to a computer, cell phone and internet. Data collection was carried out using an online questionnaire containing 60 questions, with closed answers, which aimed to understand their relationship with food. Food consumption Abstract and the risk of developing nervous anorexia (Eating Attitudes Test - EAT-26) and nervous bulimia (Bulimic Investigatory Test, Edinburgh - BITE) were verified. Results: 92 women participated in the research, with 81.50% (n=75) reporting that they stayed at home during the pandemic. Regarding food intake, 45.70% (n=42) reported that they consumed fruits and vegetables daily, 55.40% (n=51) ate cookies, snacks, sweets and sweets 1 to 2 times/week and 62, 00% (n=57) consumed sausages at least once/week. Furthermore, 18.50% (n=17) were at risk for developing nervous anorexia and 83.60% (n=73) were at risk for nervous bulimia. However, analyzing whether this risk was associated with the pandemic, it was found that there was no significant difference between the group that remained at home and the group that went out to work (p > 0.05). Conclusion: therefore, most of the volunteers presented a risk of developing an eating disorder, however, there was no relationship between the possible risk of developing eating disorders influenced by the pandemic.

Percepções e ações da equipe multiprofissional em saúde sobre a medicina tradicional indígena / Perceptions and actions of the multi-professional health team on traditional indigenous medicine / Percepciones y acciones del equipo multidisciplinario de salud sobre la medicina tradicional indígena

Objetivo: compreender as percepções e as ações de uma equipe multiprofissional em saúde quanto à prática da medicina tradicional indígena em uma Casa de Atenção à Saúde Indígena. Método: estudo qualitativo descritivo, realizado em uma de Casa de Apoio à Saúde Indígena em um município do Pará, que incluiu oito profissionais de uma equipe multiprofissional. A coleta de dados foi realizada no ano de 2018 e estes foram examinados pelo método da análise de conteúdo. Resultados: inserção e prática do cristianismo; ritos e lideranças xamânicas; e postura da equipe de multidisciplinar foram as categorias elencadas, que apontam os entendimentos e atuações da equipe multiprofissional e da organização espacial da Casa de Saúde do município. Considerações finais: há novos costumes e valores entre as etnias, em virtude da aproximação de grupos religiosos, cujas ações foram registradas e apreendidas pela equipe de trabalhadores em saúde.

Objective: understanding the perceptions and actions of a multi-professional health team regarding the practice of traditional indigenous medicine in an Indigenous Health Care Center. Method: this is a descriptive qualitative study carried out in an Indigenous Health Support Center in a municipality in the state of Pará, which included eight professionals from a multi-professional team. Data was collected in 2018 and examined using the content analysis method. Results: insertion and practice of Christianity; shamanic rites and leadership; and the attitude of the multidisciplinary team were the categories listed, which point to the understandings and actions of the multi-professional team and the spatial organization of the Health Center in the municipality. Final considerations: there are new customs and values among ethnic groups, due to the approach of religious groups, whose actions were recorded and apprehended by the team of health workers.

Objetivo: comprender las percepciones y acciones de un equipo multidisciplinario de salud sobre la práctica de la medicina tradicional indígena en una Casa de Atención para la Salud Indígena. Método: estudio descriptivo cualitativo, realizado en una Casa de Apoyo a la Salud Indígena de un municipio de Pará, que incluyó ocho profesionales de un equipo multidisciplinario. La recolección de datos se realizó en 2018 y los datos fueron sometidos al método de análisis de contenido. Resultados: inserción y práctica del cristianismo; ritos y líderes chamánicos; y actitud del equipo multidisciplinario fueron las categorías enumeradas, que indican la percepción y las acciones del equipo multidisciplinario y la organización espacial de la Casa de Salud del municipio. Consideraciones finales: existen nuevas costumbres y valores entre las etnias, debido a la presencia de grupos religiosos, el equipo de los trabajadores de la salud registró y aprendió las acciones de los indígenas.

Representação social da Covid-19 para a população de uma cidade de pequeno porte / Social representation of Covid-19 for the population of a small-sized city / Representación social del Covid-19 para la población de un pequeño pueblo

Objetivo: analisar a representação social da Covid-19 para a população geral de uma cidade de pequeno porte do Estado do Rio de Janeiro. Método: estudo qualitativo, apoiado na abordagem estrutural das representações sociais. Participaram 100 usuários de serviços de saúde. Os dados foram coletados por questionário sociodemográfico de evocações livres de palavras e roteiro de entrevista semiestruturada. Os dados foram analisados com o auxílio dos softwares Excel, EVOC 2005 e análise de conteúdo temático-categorial para contextualização das evocações respectivamente. Resultados: os termos do possível núcleo central foram: morte, sofrimento, cuidados, ansiedade-angústia e vacina. Na primeira periferia: medo e prevenção. À segunda periferia: informação-desinformação; desgoverno; ter-fé e proteção. A zona de contrate: doença; isolamento-social; dificuldades; catástrofe-mundial; desemprego e pandemia. Considerações finais: marcaram essa representação os impactos psicossociais negativos resultantes da desestruturação da vida e das mortes ocasionadas pela nova doença, no entanto o grupo aderiu as medidas de cuidados de proteção.

Objective: to analyze the social representation of Covid-19 among the general population of a small-sized city in the State of Rio de Janeiro. Method: Qualitative study, based on the structural approach of social representations. One hundred healthcare service users participated. Data were collected through a sociodemographic questionnaire, free word evocation, and a semi-structured interview guide. The data were analyzed using Excel software, EVOC 2005, and thematic-categorical content analysis for contextualization of the evocations, respectively. Results: the terms of the possible central core were: death, suffering, care, anxiety-distress, and vaccine. In the first periphery: fear and prevention. In the second periphery: information-misinformation; mismanagement; having faith and protection. The contrast zone: disease; social isolation; difficulties; global catastrophe; unemployment; and pandemic. Final considerations: this representation was marked by the negative psychosocial impacts resulting from the disruption of life and the deaths caused by the new disease; however, the group adhered to protective care measures.

Objetivo: analizar la representación social del Covid-19 para la población general de una pequeña ciudad del Estado de Río de Janeiro. Método: estudio cualitativo, basado en el enfoque estructural de las representaciones sociales. Participaron 100 usuarios de servicios de salud. Los datos se recolectaron mediante un cuestionario sociodemográfico con evocación libre de palabras y una guía de entrevista semiestructurada. Los datos fueron analizados utilizando lo software Excel y EVOC 2005 y análisis de contenido temático-categórico para contextualizar las evocaciones respectivamente. Resultados: los términos del posible núcleo central eran: muerte, sufrimiento, cuidados, ansiedad-angustia y vacuna. En la primera periferia: miedo y prevención. En la segunda periferia: información-desinformación; desgobierno; tener fe y protección. La zona de contraste: enfermedad; aislamiento-social; dificultades; catástrofe-mundial; desempleo y pandemia. Consideraciones finales: esta representación se caracterizó por los impactos psicosociales negativos derivados de la desestructuración de la vida y de las muertes causada por la nueva enfermedad, sin embargo, el grupo adhirió a las medidas de protección.

Efeitos do treinamento físico supervisionado na ansiedade, estresse e depressão após a Covid-19 / Effects of supervised physical training on anxiety, stress and depression after Covid-19 / Efectos del entrenamiento físico supervisado en la ansiedad, el estrés y la depresión después de la Covid-19

Objetivo: avaliar ansiedade, estresse e depressão antes e após o treinamento físico em acometidos pela Covid-19. Método: estudo quase-experimental realizado em Goiânia com pacientes que tiveram Covid-19 moderada a grave, após internação. Investigou-se ansiedade, estresse e depressão por meio da DASS-21. Os participantes realizaram dezoito sessões de treinamento físico, três vezes/semana composto por exercícios aeróbios, resistidos e de flexibilidade. Utilizou-se teste Shapiro Wilk para distribuição e os testes t pareado e Wilcoxon com nível de significância de p<0,05 para comparações. Resultado: participaram dezessete indivíduos com 55,59(±5,20) anos, predominantemente mulheres (64,7%), média de dezessete dias internados, maioria obesos (52,9%) com alguma doença prévia à Covid-19 (76,5%). Houve redução da ansiedade (mediana de 9,0 para 2,0 [p=0,001]), estresse de 10,0 para 2,0 (p=0,001) e depressão de 6,0 para 2,0 (p<0,001) após treinamento físico. Conclusão: o treinamento físico foi eficaz para melhora da ansiedade, estresse e depressão após dezoito sessões.

Objective: to assess anxiety, stress and depression before and after physical training in people affected by Covid-19. Method: a quasi-experimental study carried out in Goiania with patients who had moderate to severe Covid-19 after hospitalization. Anxiety, stress and depression were investigated using the DASS-21. The participants underwent eighteen physical training sessions, three times a week, consisting of aerobic, resistance and flexibility exercises. The Shapiro Wilk test was used for distribution and the paired t-test and Wilcoxon test with a significance level of p<0.05 were used for comparisons. Results: seventeen individuals took part, aged 55.59 (±5.20) years, predominantly women (64.7%), an average of seventeen days in hospital, the majority obese (52.9%) with some illness prior to Covid-19 (76.5%). There was a reduction in anxiety (median from 9.0 to 2.0 [p=0.001]), stress from 10.0 to 2.0 (p=0.001) and depression from 6.0 to 2.0 (p<0.001) after physical training. Conclusion: physical training was effective in improving anxiety, stress and depression after eighteen sessions.

Objetivo: evaluar la ansiedad, el estrés y la depresión antes y después del entrenamiento físico en afectados por la Covid-19. Método: estudio cuasi-experimental realizado en Goiânia con pacientes que tuvieron Covid-19 moderada a grave, tras hospitalización. Se investigó la ansiedad, el estrés y la depresión mediante el DASS-21. Los participantes realizaron dieciocho sesiones de entrenamiento físico, tres veces por semana compuesto por ejercicios aeróbicos, de resistencia y de flexibilidad. Se utilizó la prueba Shapiro Wilk para distribución y las pruebas t pareada y Wilcoxon con nivel de significancia de p<0,05 para comparaciones. Resultado: participaron diecisiete individuos con 55,59 (±5,20) años, predominantemente mujeres (64,7%), media de diecisiete días hospitalizados, mayoría obesos (52,9%) con alguna enfermedad previa a la Covid-19 (76,5%). Hubo reducción de la ansiedad (mediana de 9,0 a 2,0 [p=0,001]), estrés de 10,0 a 2,0 (p=0,001) y depresión de 6,0 a 2,0 (p<0,001) tras el entrenamiento físico. Conclusión: el entrenamiento físico fue eficaz para mejorar la ansiedad, el estrés y la depresión después de dieciocho sesiones.

Experiencias de duelo anticipado en cuidadoras informales de la Región Metropolitana (Chile): cambios ocupacionales

Introducción: La pérdida de un ser querido se construye como una experiencia humana inevitable, que genera una vivencia emocional que impacta tanto al individuo que experimenta la pérdida como a su entorno. Objetivo: Investigar la relación entre los procesos de duelo anticipado y las alteraciones en la participación ocupacional de quienes fueron cuidadoras principales informales de personas con enfermedad terminal en la Región Metropolitana de Chile. Método: Enfoque cualitativo con 7 entrevistas semiestructuradas individuales a cuidadoras adultas en el sur y poniente de la región. Resultados: Fueron categorizadas experiencias y subjetividades que expresan la importancia que las mujeres atribuyen al cuidado de sus familiares, con una escasa demostración emocional durante esta etapa. Además, emergen categorías como rutinas y roles, donde muchas mujeres priorizan el cuidado; redes de apoyo, con relatos frecuentes sobre la falta de ayuda y herramientas más allá de lo económico; y áreas de ocupación afectadas, predominantemente el descanso y sueño, aunque también se menciona el autocuidado y la participación social. Conclusión: Si bien el proceso de duelo anticipado genera dolor y desgaste propio, es el cuidado informal lo que genera cambios en la participación y calidad de vida de las mujeres cuidadoras.

Introdução: A perda de um ente querido é construída como uma experiência humana inevitável, que gera uma vivência emocional que afeta tanto o indivíduo que experimenta a perda quanto seu entorno. Objetivo: investigar a relação entre os processos de luto antecipado e as alterações na participação ocupacional daquelas que foram cuidadoras primárias informais de pessoas com doença terminal na Região Metropolitana do Chile. Método: abordagem qualitativa com 7 entrevistas individuais semiestruturadas com cuidadoras adultas no sul e oeste da região. Resultados: Foram categorizadas experiências e subjetividades que expressam a importância que as mulheres atribuem ao cuidado de seus familiares, com uma escassa demonstração emocional durante essa etapa. Além disso, surgem categorias como rotinas e papéis, em que muitas mulheres priorizam o cuidado; redes de apoio, com relatos frequentes sobre a falta de ajuda e ferramentas além das econômicas; e áreas de ocupação afetadas, predominantemente o descanso e o sono, embora o autocuidado e a participação social também sejam mencionados. Conclusão: Embora o processo de luto antecipado gere dor e desgaste próprio, é o cuidado informal que gera mudanças na participação e na qualidade de vida das mulheres cuidadoras.

Introduction: The loss of a loved one is constructed as an inevitable human experience, which generates an emotional experience that impacts both the individual experiencing the loss and his or her environment. Objective: To investigate the relationship between anticipated grief processes and alterations in the occupational participation of informal primary caregivers of terminally ill persons in the Metropolitan Region of Chile. Method: Qualitative approach with 7 individual semi-structured interviews with adult caregivers in the south and west of the region. Results: Experiences and subjectivities were categorized that express the importance that women attribute to the care of their relatives, with little emotional demonstration during this stage. In addition, categories such as routines and roles emerge, where many women prioritize caregiving; support networks, with frequent reports on the lack of help and tools beyond the economic; and areas of occupation affected, predominantly rest and sleep, although self-care and social participation are also mentioned. Conclusion: Although the process of anticipatory grief generates pain and self-exhaustion, it is informal caregiving that generates changes in the participation and quality of life of women caregivers.

Accessibility in video games for the visually impaired population in Colombia / Accesibilidad en los videojuegos para población con discapacidad visual en colombia

resumen está disponible en el texto completo

ABSTRACT In recent years, the change in the design of video games has become evident, one of them is accessibility for people with different disabilities, despite the laws, which are very limited, there are no standards that require companies, industries and producers from different sectors implement this resource in their projects. From this research, the objective is to investigate the importance that these inclusion games comply with the response to stimuli provided by the industry, in this field, and that the support that the country is giving to this need to be felt is also felt. this visually impaired population. Based on the mixed research methodology, different sources are investigated in order to demonstrate how necessary it is that there are models of inclusion in video games, both entertainment and educational (serious), thus reaching an identity model that. The lack of laws and resources that promote this industry is evidenced. The project made it possible to describe the main strategies and resources that have been proposed and/or implemented in terms of accessibility for people with visual disabilities in Colombia, investigating and comparing the information obtained from the state of the art, and in this way conclude with the impact of these development methods, in the visually impaired population. An important impact has been the technological evolution that other countries have managed to develop for this type of population. As a conclusion, a disparity was found in the development of this project, which is precisely the little accessibility that people with visual disabilities have to video games in Colombia, because beyond the interaction that exists with some, much more access is required. And above all more investment and enactment of laws that support this resource. Using the mixed research methodology, different sources are investigated in order to demonstrate how necessary it is that there are models of inclusion in video games, both entertainment and educational (serious), thus reaching an identity pattern that gives as shows the lack of laws and resources that promote this industry. From this type of research, it was concluded that the lack of resources has been a legible mark that passes through these industries that have the panorama quite compromised by the demands of the market, but that due to this lack of economic resources they cannot reach the levels of implementation. to its mission and vision. Observing what was said above, it becomes complex to be able to carry out a research that clearly defines the inclusion processes for this type of people with said disability in Colombia. Each model of each industry is defined in a different way, since not all of them have this offer in their services. Common to this type of population. What, then, allowed us to conclude this research, finding social differences in each production of a video game? The project allowed us to describe the main strategies that have been proposed and/or implemented in terms of accessibility for people with visual disabilities in Colombia, investigating and comparing the information obtained from the state of the art, as mentioned above. Thus, then, different responses were found to this inclusion, not only in entertainment games but also in educational ones, which in the end are also very important in the classroom, because not only should one think about the distraction game, but also about the playful nature of teaching, thus helping teachers in the development of their classes. In this way, we conclude with the impact of these development methods on the visually impaired population. Another important point that could be evidenced is the evolution of technology, which has brought haptic systems, immersive and dynamic audio, as well as braille itself in digital systems, this, of course, has allowed progress towards much more logical and dynamic resources, but they continue to be limited precisely because they cannot be implemented correctly, due to their high purchasing value. We must think not of people who suffer from visual disabilities, but rather we must think of all social strata with this type of disability who can, with their resources, access this type of technology. Each part of the intervention exercise with state and private companies led to results that concluded in the population with visual disabilities that does not have the possibility of accessing this exercise of inclusion, and beyond the common interest in popularizing these video games, the limitation of certain sectors is seen that do not find in this undertaking a great industry, since the majority assures that it is more lucrative to invest in video games for people without no limitation or disability than investing in this other type of video game In conclusion, the disabled population in Colombia is 3,134,037; this number is very high if we also consider the rural populations that live without any type of resource or technological reach; Due to their socioeconomic condition and location, they are people who have a deterioration in services, then what is the extent of the disabled population in these areas that do not have the support and resources to improve their quality of life? It is almost null, there is no possibility that in the most vulnerable places and far from the reach of the government, inclusion exercises will be carried out with the visually disabled population, because simply in the last population census that was carried out in Colombia in 2018, more than 50% of the population They do not access the Internet, this added to governments that waste state money, it could be said that the level exceeds that percentage. If so, it is very possible that the reach of this population to these technological resources is very bad. A lot of economic investment is required on the part of the state, and for the designers of these technologies to expand to cover their creative enterprises, to the entire population, without the right to exclusion. For this reason, in this project a disparity is evident, which is precisely the little accessibility that people with visual disabilities have to video games in Colombia, not only from entertainment, but from their spaces in the classroom, which is what many demands. academics for their models and resources to work with this population, because beyond the interaction that exists with some (very few), much more access is still required and above all more investment and enactment of laws that support said resource.

Factores relacionados al estado Todo-Menos-Tesis en la formación de grado de odontólogos de una universidad peruana / Factors Related to All-But-Dissertation Status in Undergraduate Dental Education at a Peruvian University

Resumen Introducción: Elaborar una tesis es un proceso complejo y algunos estudiantes no la culminan, la abandonan o entran en un estado de postergación permanente. Objetivo: Identificar los factores que se relacionan con la presencia del estado Todo-Menos-Tesis (TMT) en los graduados de un programa de odontología. Método: Estudio exploratorio con enfoque cualitativo donde participaron 21 graduados. Se utilizó la técnica de la encuesta y una entrevista semiestructurada. El cuestionario recopiló información relacionada a la condición laboral, características personales, tiempo de graduación y características familiares. La guía de entrevista recopiló las categorías de motivos (personales, académicos, económicos y laborales), consecuencias (repercusiones de la postergación de la tesis) y recomendaciones para evitar el estado TMT. Resultados: El 57,1 % (n = 12) fueron varones. Los principales motivos para postergar la tesis estuvieron relacionados con la adquisición de recursos económicos, pérdida de interés, prioridades familiares, alejamiento académico y sensaciones de habilidades inadecuadas. Los participantes recomiendan ofrecer otras modalidades de titulación, realizar capacitaciones académicas, mejorar las experiencias investigativas y brindar orientación al graduado. Conclusiones: Los graduados de la carrera de estomatología de la Universidad Científica del Sur presentan múltiples factores personales, cognitivos e institucionales que influyen en la decisión de continuar o retomar la elaboración de su tesis de licenciatura. La dedicación laboral y las responsabilidades familiares son los principales factores que limitan el tiempo de dedicación a la tesis.

Abstract Introduction: Preparing a thesis is a complex process and some students do not complete it, abandon it or enter a permanent state of procrastination. Objective: To identify the factors that are related to the presence of the All-But-Dissertation (ABD) state in the graduates of a Dentistry program. Method: Exploratory study with a qualitative approach in which 21 graduates participated. The survey technique and a semi-structured interview were used. The questionnaire collected information related to employment status, personal characteristics, time of graduation, and family characteristics. The interview guide collected the categories of reasons (personal, academic, economic, and labor), consequences (repercussions of postponing the thesis), and recommendations to avoid the syndrome. Results: 57.1% (n = 12) were male. The main reasons for postponing the thesis were related to the acquisition of economic resources, loss of interest, family priorities, academic distance and feelings of inadequate skills. The participants recommend offering other degree modalities, academic training, improving research experiences, and providing orientation to the graduate. Conclusions: Stomatology graduates of the Universidad Científica del Sur present multiple personal, cognitive, and institutional factors that influence the decision to continue or resume the elaboration of their degree thesis. Work dedication and family responsibilities are the main factors that limit the time devoted to the thesis.

Optimizing Surface Hardness and Corrosion Resistance in 316L Stainless Steel via SMRT and Plasma Nitriding.

Increasing the mechanical strength of stainless steel is fundamental to expanding its applications and extending its useful life, especially due to its impressive corrosion resistance. However, many processes that make possible increasing the hardness and wear resistance of these steels also compromise their performance when they are subjected to corrosive environments. Because of the need to increase surface hardness without jeopardizing corrosion resistance, this study explores the impact of a surface mechanical rolling treatment (SMRT) with volumetric reductions of 50% and 70%, together with high-temperature plasma nitriding (PN) (450, 500, and 550 °C), on 316L steel. X-ray diffraction analysis analyzed the composition and structure of the resulting coatings. Mechanical strength was assessed using Vickers microhardness, while corrosion resistance was tested in a 3.5%-by-weight NaCl solution. The results indicate a substantial increase in surface hardness in all of the nitrided samples. Notably, the samples were subjected to rolling with 50% and 70% volumetric reduction, and subsequent nitriding at 550 °C showed a reduced impairment of corrosion resistance. This shows that the methodology adopted in this study, consisting of SMRT and PN, can increase the useful life and expand the applicability of stainless steels commonly used in various industry sectors.

The dose-effect response of combined red and infrared photobiomodulation on insulin resistance in skeletal muscle cells.

Obesity is a major public health problem and is a major contributor to the development of insulin resistance. In previous studies we observed that single-wavelength red or infrared photobiomodulation (PBM) improved insulin signaling in adipocytes and skeletal muscle of mice fed a high-fat diet, but information about the combination of different wavelengths, as well as the effect of different light doses (J/cm2) is lacking. Therefore, the aim of this study was to investigate the effects of different doses of dual-wavelength PBM on insulin signaling in muscle cell, and explore potential mechanisms involved. Mouse myoblasts (C2C12) were differentiated into myotubes and cultured in palmitic acid, sodium oleate and l-carnitine (PAL) to induce insulin resistance high or in glucose medium (CTRL). Then, they received SHAM treatment (lights off, 0 J/cm2) or PBM (660 + 850 nm; 2, 4 or 8 J/cm2). PAL induced insulin resistance (assessed by Akt phosphorylation at ser473), attenuated maximal citrate synthase activity, and increased the phosphorylation of c-Jun NH(2) terminal kinase (JNK) (T183/Y185). PBM at doses of 4 or 8 J/cm2 reversed these PAL-induced responses. Furthermore, at doses of 2, 4 or 8 J/cm2, PBM reversed the increase in mitofusin-2 content induced by PAL. In conclusion, the combination of dual-wavelength red and infrared PBM at doses of 4 and 8 J/cm2 improved intracellular insulin signaling in musculoskeletal cells, and this effect appears to involve the modulation of mitochondrial function and the attenuation of the activation of stress kinases.

Influence of coffee roasting degree on antioxidant and metabolic parameters: Comprehensive in vitro and in vivo analysis.

This study aimed to assess the impact of roasting degree on antioxidant and metabolic parameters in vitro and in vivo. In vitro, we evaluated radical scavenging, lipid peroxidation, and the activity of digestive enzymes (α-glucosidase, α-amylase, and lipase). In vivo, we first examined coffee's effect on carbohydrate and lipid absorption in healthy rats, followed by a chronic evaluation of metabolic disorders and antioxidant markers using a diet-induced obesity model. In vitro results revealed that increased roasting degree reduced the antioxidant capacity of coffee brews. All brews showed lower inhibition of α-glucosidase and α-amylase, and lipase inhibition compared to the positive control (acarbose or orlistat). In vivo, all roasting degrees consistently reduced postprandial glucose levels by 20%. Notably, coffee with a high roasting degree (HRD) decreased serum triglycerides (TG) by ∼44% after a lipid load, while other roasts did not. Chronic administration of unroasted (UN) or HRD coffee significantly reduced weight gain compared to the obese control (∼15% and ∼10%, respectively). Notably, all coffee samples improved lipid metabolism parameters. UN and HRD coffee significantly decreased adipocyte volume by 58% and 48%, respectively, compared to the obese control. Additionally, all groups exhibited less than 30% hepatic lipid droplets independent of roasting degree. HRD treatment notably increased liver catalase (CAT) activity and reduced lipid peroxidation in serum (∼90%), liver (∼59%), and adipose tissue (∼37%) compared to the obese control group. These findings suggest that HRD in coffee may confer certain biological advantages.

Evidence-based practice in respiratory healthcare professionals in Latin America: a survey of the Latin American Thoracic Association (ALAT).

Background: Evidence-based practice (EBP) is a systematic approach to professional practice using the best available evidence to make informed clinical decisions in healthcare. It is necessary to measure and identify strengths and opportunities for improvement. Objective: To assess the knowledge and application of EBP in respiratory health professionals in Latin America. Methods: A cross-sectional study was conducted. The questionnaire was distributed online to health professionals in Latin American countries. Demographic data, professional characteristics, EBP training, and questionnaire responses were collected. Descriptive and inferential statistical analyses were performed. Results: A total of 448 respiratory health professionals participated in the study. Responses were obtained from 17 countries where the majority were female, with an average age of 42. Participants included physicians, physiotherapists, nurses, respiratory therapists, speech therapists, and occupational therapists. Overall scores indicated moderate to high levels of EBP knowledge and application. However, variations were observed in different dimensions. Factors such as EBP training, reading scientific articles, and professional characteristics were associated with higher scores. Barriers to implementing EBP were identified mostly related to institutional support. Conclusions: This study provides information on the knowledge and implementation of EBP in respiratory health professionals in Latin America. Although the overall levels of knowledge and application of EBP were moderate to high, there are options for improvement, especially in addressing barriers to implementation.

Introducción: La práctica basada en evidencia (PBE) es un enfoque sistemático para la práctica profesional que utiliza la mejor evidencia para tomar decisiones informadas. Es necesario identificar fortalezas y oportunidades de mejora. Objetivo: Evaluar el conocimiento y la aplicación de la EBP en profesionales de la salud respiratoria en Latinoamérica. Métodos: Se desarrolló un estudio transversal. El cuestionario se distribuyó en línea a profesionales de la salud en países latinoamericanos. Se recopilaron datos demográficos, características profesionales, capacitación en EBP y respuestas al cuestionario. Se realizaron análisis estadísticos descriptivos e inferenciales. Resultados: Un total de 448 profesionales de la salud respiratoria participaron en el estudio. Se obtuvieron respuestas de 17 países donde la mayoría eran mujeres, con una edad promedio de 42 años. Los participantes incluyeron médicos, fisioterapeutas, enfermeras, terapeutas respiratorios, fonoaudiólogos y terapeutas ocupacionales. Las puntuaciones generales indicaron niveles moderados a altos de conocimiento y aplicación de la EBP. Sin embargo, se observaron variaciones en diferentes dimensiones. Factores como la capacitación en EBP, la lectura de artículos científicos y las características profesionales se asociaron con puntuaciones más altas. Se identificaron barreras para implementar la EBP, principalmente relacionadas con el apoyo institucional. Conclusiones: Este estudio proporciona información sobre el conocimiento y la implementación de la EBP en profesionales de la salud respiratoria en América Latina. Aunque los niveles generales de conocimiento y aplicación de la EBP fueron moderados a altos, existen opciones de mejora, especialmente en abordar las barreras.

A comprehensive floristic knowledge of a fragment of Semideciduous Seasonal Forest [Parque Estadual da Serra da Concórdia], Rio de Janeiro, Brazil.

Background: The "Serra da Concórdia" is part of the Atlantic Forest phytogeographical domain in the Brazilian state of Rio de Janeiro and it has a predominant phytophysiognomy of Semideciduous Seasonal Forest. This region underwent intense habitat loss and fragmentation during the 19th century, due to coffee plantations and later pastures. With the decline of these activities, the areas were abandoned, triggering secondary succession. In 2002, the "Parque Estadual da Serra da Concórdia" was established in this region to preserve the remaining forest fragments. The updated list of vascular plants recorded in this protected area, published in the "Catálogo de Plantas das Unidades de Conservação do Brasil", is presented here, along with information on richness, endemism, and conservation status. New information: The "Parque Estadual da Serra da Concórdia" houses 231 vascular plant species, of which 90% are angiosperms, 10% ferns and lycophytes, and 27% endemic to the Atlantic Forest. Ten species are threatened with extinction, three are categorized as Endangered, and seven as Vulnerable. Although there have been expeditions in the "Parque Estadual da Serra da Concórdia", they have been limited, resulting in a low number of records and the species richness for a protected area. This is notable considering the 2,130 Brazilian native vascular plant species recorded in the semideciduous seasonal forest of Rio de Janeiro. Our data indicates that floristic inventories of Brazilian protected areas could help highlight gaps in flora knowledge and support the proposal of effective conservation actions.

Melanoma arising in a child with a medium-sized congenital melanocytic nevus.

Pediatric melanomas are rare and some of them may arise on giant congenital melanocytic nevi. The risk of developing melanoma on a medium-sized nevus is not clear but is thought to be very rare. Proliferative cellular nodules which mimic malignant melanoma may pose significant diagnostic challenges. We report the case of a 9-year-old patient who developed a melanoma on a medium-sized congenital melanocytic nevus on the tip of the nose, requiring a complex surgery with excellent aesthetic results.

Los melanomas en pediatría son raros y algunos de ellos pueden surgir sobre nevos melanocíticos congénitos gigantes. El riesgo de desarrollar melanoma en un nevo de tamaño mediano no está claro, pero se cree que es muy raro. Los nódulos proliferativos celulares, que imitan al melanoma, pueden plantear importantes desafíos diagnósticos. Presentamos el caso de una paciente de 9 años que desarrolló un melanoma sobre un nevo melanocítico congénito de tamaño mediano en la punta de la nariz, que requirió un procedimiento quirúrgico complejo con excelentes resultados estéticos.

Synthesis and evaluation of antibacterial and antibiofilm agents based on phenylamino-substituted 1,4-benzoquinones.

Aim: This work describes the synthesis and antimicrobial evaluation of 6-aminated 1,4-benzoquinones (6-AQs) against seven resistant pathogens.Materials & methods: The 6-AQs, synthesized via a Michael addition reaction between bromoquinone and p-substituted anilines, were assessed for their antimicrobial activity through both in vitro and in silico analyses.Results: Bromoquinone and 6-AQs with electron-withdrawing groups demonstrated activity against Pseudomonas aeruginosa, with minimum inhibitory concentrations ranging from 16 to 128 µg/ml, comparable to standard antimicrobials. Two derivatives exhibited minimum inhibitory concentrations values against methicillin-resistant Staphylococcus aureus ranging from 64 to 128 µg/ml. These compounds demonstrated both bacteriostatic and bactericidal effects, and antibiofilm features.Conclusion: The 6-AQs 19g and 19f showed a promising antimicrobial profile, indicating their potential as new therapeutic options.

[Box: see text].