Abstract Large quantities of residual cooking oil are being increasingly generated in various sectors, as it is often improperly disposed of and causes serious environmental problems. A commonly used alternative is the use of lipases in enzymatic hydrolysis, since it is rather attractive to several sectors, in addition to allowing the use of products generated thereof, such as: free fatty acids, diacylglycerols, monoacylglycerols and free glycerol, moreover, it is capable of operating in mild temperature and pressure conditions. Therefore, the present study aimed to evaluate alternatives for the hydrolysis of residual frying oil by evaluating the efficiency of different types of supports and heating systems using free and immobilized forms of lipase from Burkholderia cepacia (BCL) and Porcine pancreas (PPL) as biocatalyst. Polyhydroxybutyrate (PHB), niobium oxide (Nb2O5) and chitosan (CHIT) were evaluated as support for immobilizing BCL and PPL lipases, and superior results were found regarding the hydrolytic activity of immobilization derivatives using PHB and Nb2O5. Among the heating systems under evaluation, the highest percentage of residual oil hydrolysis was found using the ultrasound system for both free and immobilized lipases, reaching 57.91% hydrolysis for lipases immobilized on Nb2O5 and 61.11% hydrolysis for the derivative immobilized on PHB. The operational stability of both biocatalysts was evaluated using similar half-life time values for both. Thus, it was observed that the ultrasound system was efficient in improving lipase performance in the hydrolysis of free fatty acids, once this unconventional heating system is quite promising for accelerating such enzymatic reactions.

ABSTRACT Introduction: Chronic kidney disease patients have a higher risk of infection and worse clinical outcomes after coronavirus disease. We aimed to assess the prevalence of infection and the humoral response after vaccination in peritoneal dialysis patients. Methods: Three types of vaccines were administered (two doses) with the antibody detection at least six months after. Coronavirus disease 2019 infections, hospital admissions, and deaths were evaluated. Results: From 70 prevalent patients, 45 were included. There was a significant increase in antibody level, with a median of 92 (36, 447) U/mL. Only 4% of patients remained seronegative. History of immunosuppressive therapy was associated with no response (100% vs 60%, p=0.010). There were two infections after the vaccination, without hospital admission. Conclusion: Immunization against coronavirus disease was effective in generating a humoral response in peritoneal dialysis patients. There was also an evident impact of immunosuppressive therapy on vaccine response in peritoneal dialysis patients.

ABSTRACT Introduction: Healthcare facilities are among the greatest contributors to resource consumption and waste generation. Nephrology is one of the most polluting medical areas, mostly due to hemodialysis (HD). Incremental hemodialysis (iHD) has gained attention due to several clinical advantages, by decreasing the number of sessions while the patient still has residual kidney function. Beyond these benefits, this regímen might also be both more economical and environmentally friendly. The aim of this study was to evaluate the potential reduction of resource consumption, waste generation and carbon footprint associated with the implementation of iHD. Methods: We conducted a single-center retrospective analysis of 157 incidental patients initiating HD in our centre in 2019 (pre-pandemic). Retrospectively, a set of criteria identifying eligibility for an iHD program were applied to those patients. Results: Twenty-three patients (15%) would have been eligible for iHD instead of starting a standard HD program. In that scenario, iHD implementation would have reduced from 36 to 85 tons of CO2 equivalent emissions and 4186 kg of contaminated waste yearly, at our unit. iHD would also allow savings of almost 60 000€ and a reduction in water consumption of 418 600 L in one year. Conclusion: This study shows that iHD can significantly attenuate the environmental and economic impact of HD. These findings encourage kidneycare programs and policymakers to adopt greener options but should never be detrimental to the clinical decision of referencing a patient to iHD.

ABSTRACT Introduction: Healthcare services have a significant environmental impact (EI). The increasing prevalence of chronic kidney disease makes nephrology one of the clinical areas with higher EI. The aim of this study was to document Portuguese nephrologists’ current practice regarding environmental sustainability. Methods: Two surveys were developed: one for chiefs of departments and another for all nephrologists registered in the Portuguese Society of Nephrology. Results: There were 153 responders (25.5% response rate): 17 (11%) were chiefs of departments, 36 (23.5%) nephrologists in coordination roles, 60 (39%) nephrologists and 40 (26%) nephrology fellows. The median priority attributed to environmental sustainability was 4 (IQR 3-5). Only one department had established a green group, but 13 were currently undertaking at least one green project (76.5%). Only 6% of responders (8/136) had received formal training on this topic, but more than 90% would like to have more information. The most reported barriers to environmental sustainability practices were inadequate information, lack of adequate facilities, concerns about security and legal norms. Only two facilities (11.8%) declared that environmental sustainability was considered in procurement decisions. More than 70% of the Units did not have regular access to any kind of environmental sustainability audit. Only 3 surveyed units (17.6%) have set up systems to reuse the reverse osmosis rejected water and only half had local on-line dialysate production (9/17, 53%). Conclusion: Portuguese nephrologists wish to incorporate environmental sustainability in their daily practice, however there is a big gap between their intention and current behavior, likely because of the identified barriers. Keywords: Environment; Medical Waste; Nephrology; Renal Dialysis

ABSTRACT While medical health professionals are trained to detect, treat, and comfort, they are not trained to consider the environmental impact of the services they provide. Healthcare contributes significantly to resource depletion and greenhouse gas emissions. Not only are healthcare institutions, whose mission is to protect and promote health, major polluters that use large amounts of energy and water, but the production, transport, use and disposal of medications and other medical consumables also leave considerable carbon footprints. In nephrology practice, dialysis programs have a particularly large carbon footprint with recurrent, per capita, resource consumption and waste generation profiles that are disproportionately high compared to other medical therapies. A close relationship between renal healthcare professionals and manufacturers is fundamental for the development of sustainable ecofriendly technologies, devices, and machines. Such collaboration is essential to reduce the environmental burden of renal therapies and maintain good quality of treatment. Renal units should register and evaluate their environmental performance and make an initial diagnosis of their environmental processes, to provide locally adapted recommendations for areas of additional improvement through environmental management programs. Regular auditing of these programs must be also performed aiming at continuous improvement with the setting of increasingly ambitious goals for reducing environmental burden of nephrology.

ABSTRACT Peritonitis is one of the main complications of peritoneal dialysis and accounts for considerable mortality and hospitalization. It is usually treated with intraperitoneal antibiotherapy, as it is the best way to achieve high concentrations at the site of infection. We report a case of an 86-year-old female patient with end-stage renal disease under continuous ambulatory peritoneal dialysis, who was admitted to our hospital with complaints of intense diffused abdominal pain. The effluent culture yielded Staphylococcus hominis only sensible to vancomycin and linezolid. She was diagnosed with peritonitis secondary to Staphylococcus hominis infection and treated with oral linezolid without cateter removal. Adequate linezolid peritoneal fluid concentration (between 3 and 20 μg/mL) was achieved and the antibiotic therapy was maintained for 21 days with clinical and analytical improvement. According to our knowledge, this was the first Staphylococcus peritonitis in a peritoneal dialysis patient, successfully treated with oral linezolid and has had linezolid levels monitored in the peritoneal dialysis effluent.

Resumen: Introducción: Tanto la malnutrición por exceso como enfermedades de salud mental han afectado a los jóvenes y se ha buscado conocer cómo repercuten entre sí. El objetivo de esta revisión fue determinar si la malnutrición por exceso afecta la salud mental y/o el autoconcepto de la población infantojuvenil. Material y método: Se realizó una revisión integrativa de la literatura en el período comprendido entre los años 2016 a 2021 a través de las bases de datos: PubMed, LILACS y EBSCO. Se identificaron 3.985 artículos de forma inicial, en donde sólo 9 cumplían criterios de inclusión y exclusión, dentro de los cuales destaca la disponibilidad del texto completo de forma gratuita o mediante las bases de datos de la Universidad Nacional Andrés Bello. Resultados: Los niños/adolescentes diagnosticados con problemas de malnutrición por exceso experimentan dificultades psicosociales por su autopercepción, dependiendo no sólo de su condición física, sino también de factores socioeconómicos, familiares y sociales, estableciéndose una relación directa bidireccional. Discusión: A partir de la primera infancia se adquieren ciertas pautas de comportamiento y aprendizajes que guían las conductas de cada individuo, dentro de estas pautas se encuentran los estereotipos de género, estándares de belleza implantados por la sociedad y medios de comunicación, estos se encuentran directamente relacionados con los problemas de autopercepción y autoestima presentes en la población infanto-juvenil, afectando en mayor porcentaje al género femenino. Conclusión: Los profesionales de Enfermería deben intervenir desde temprana edad en la promoción y prevención de la salud física y mental en la población infanto-juvenil.

Abstract: Introduction: Both malnutrition due to excess and mental health diseases have affected young people and it has been sought to know how they affect each other. The objective of this review was to determine if malnutrition due to excess affects the mental health and/or self-concept of the child and adolescent population. Material and method: An integrative review of the literature was carried out in the period between 2016 and 2021 through the databases: PubMed, LILACS and EBSCO. Initially, 3,985 articles were identified, where only 9 met inclusion and exclusion criteria, among which the availability of the full text for free or through the databases of the Universidad Nacional Andrés Bello stands out. Results : Children/adolescents diagnosed with problems of malnutrition due to excess experience psychosocial difficulties due to their self-perception, depending not only on their physical condition, but also on socioeconomic, family, and social factors, establishing a direct bidirectional relationship. Discussion: From early childhood certain patterns of behavior and learning are acquired that guide the behavior of each individual, within these guidelines are gender stereotypes, beauty standards implemented by society and the media, these are directly related to the problems of self-perception and self-esteem present in the child-juvenile population, affecting the female gender in a greater percentage. Conclusion: Nursing professionals should intervene from an early age in the promotion and prevention of physical and mental health in the child and adolescent population.

Resumo: Introdução: Tanto a desnutrição por excesso quanto as doenças de saúde mental têm afetado os jovens e tem-se procurado saber com o elas afetam umas à s outras. O objetivo desta revisão foi determinar se a desnutrição por excesso afeta a saúde mental e/ou autoconceito da população infantil e adolescente. Material e método: Foi realizada uma revisão integrativa da literatura no período entre 2016 e 2021 por meio das bases de dados: Pub Med, LILACS e EBSCO. Inicialmente, foram identificados 3.985 artigos, onde apenas 9 atenderam aos critérios de inclusão e exclusão, dentre os quais se destaca a disponibilização do texto completo gratuitamente ou por meio das bases de dados da Universidade Nacional Andrés Bello. Resultados: As crianças/adolescentes diagnosticadas com problemas de desnutrição por excesso vivenciam dificuldades psicossociais devido à sua autopercepção, dependendo não apenas de sua condição física, mas também de fatores socioeconômicos, familiares e sociais, estabelecendo uma relação direta bidirecional. Discussão: Desde a primeira infância são adquiridos determinados padrões de comportamento e aprendizagem que orientam o comportamento de cada indivíduo, dentro dessas diretrizes estão os estereótipos de gênero, padrões de beleza implementados pela sociedade e pela mídia, estes estão diretamente relacionados aos problemas de autopercepção e autoconhecimento. -estima presente na população infanto-juvenil, afetando em maior percentual o gênero feminino. Conclusão: Os profissionais de enfermagem devem intervir desde cedo na promoção e prevenção da saúde física e mental da população infanto-juvenil.

RESUMO Objetivo: Refletir sobre como a evolução das legislações ligadas a sangue e hemoderivados moldou a atuação do enfermeiro nos serviços de hemoterapia. Métodos: Estudo reflexivo, realizado mediante levantamentos em bases de dados, sobre a evolução da atuação do enfermeiro em serviços de hemoterapia. Resultados: Verificou-se que as diversas legislações, publicadas desde 1950, fomentaram a doação de sangue e moldaram a atuação do enfermeiro em serviços de hemoterapia, sendo as de maior relevância: a Lei nº 10.205/2001, sobre a coleta, processamento, estocagem, distribuição e aplicação do sangue; e a resolução do COFEN nº 629/2020, que aborda detalhadamente a atuação nesses serviços. Considerações finais: A evolução das legislações relacionadas a sangue e hemoderivados contribuiu na consolidação das atribuições dos enfermeiros em serviços de hemoterapia, pois garantiu o amparo legal e definiu as práticas a serem realizadas nesses serviços.

ABSTRACT Objective: Reflect on how the evolution of legislation related to blood and blood-based products has shaped the role of nurses in hemotherapy services. Methods: A reflective study, carried out employing surveys in databases, about the evolution of the nurse’s role in hemotherapy services. Results: Several legislations, published since 1950, have encouraged blood donation and shaped the work of nurses in hemotherapy services, being the most relevant Law #10.205/2001 (Lei nº 10.205/2001), about blood collection, processing, storage, distribution, and blood transfusion; and COFEN’s resolution # 629/2020 (COFEN nº 629/2020), which addresses in detail the practice of these services. Final considerations: The evolution of legislation related to blood and blood-based products contributed to the consolidation of nurses’ attributions in hemotherapy services since it guaranteed legal support and defined the practices in these services.

RESUMEN Objetivo: Reflejar sobre como la evolución de las legislaciones dirigidas a la sangre y hemoderivados moldeó la actuación del enfermero en los servicios de hemoterapia. Métodos: Estudio reflexivo, realizado mediante levantamientos en bases de datos, sobre la evolución de la actuación del enfermero en servicios de hemoterapia. Resultados: Verificado que las diversas legislaciones, publicadas desde 1950, fomentaron la donación de sangre y moldaron la actuación del enfermero en servicios de hemoterapia, siendo las de mayor relevancia: la Ley nº 10.205/2001, sobre la recolecta, procesamiento, almacenaje, distribución y aplicación de la sangre; y la resolución del COFEN n.º 629/2020, que aborda en detalhes la actuación en eses servicios. Consideraciones finales: La evolución de las legislaciones relacionadas a la sangre y hemoderivados contribuyó en la consolidación de las atribuciones de los enfermeros en servicios de hemoterapia, pues garantizó el amparo legal y definió las prácticas a ser realizadas en eses servicios.

Resumo O parto pré-termo (PPT) é uma grande complicação obstétrica que se associa a elevadas taxas de morbimortalidade neonatal. A sua prevalência não tem alterado na última década, sendo esencial determinar uma forma de rastreio e tratamento eficaz. A medição ecográfica transvaginal do comprimento cervical tem sido proposta como um método eficaz de rastreio das grávidas com risco aumentado de PPT. Objetivo Avaliar a aplicabilidade e utilidade da medição ecográfica transvaginal do comprimento cervical na previsão de PPT numa amostra de grávidas portuguesas. Método Estudo de coorte retrospectivo incluindo todas as grávidas com gestação unifetal que realizaram ecografia do 2° trimestre (de 18 a 22semanasþ6 dias) no Centro Hospitalar Universitário de São João entre janeiro de 2013 e outubro de 2017. Resultados A nossa amostra incluiu 4.481 mulheres. A prevalência de PPT espontâneo foi de 4,0%, sendo que 0,7% ocorreu antes das 34 semanas de gestação. A média do comprimento cervical por ecografia transvaginal foi 33,8mm, e os percentis 3, 5 e 10 da amostra corresponderam a comprimentos cervicais de 25,0mm, 27,0mm e 29,0mm, respetivamente. A regressão logística múltipla, que incluiu a idade materna, PPT anterior e antecedentes de conização, demonstrou uma associação estatisticamente significativa entre o comprimento cervical e o risco de PPT, com um risco relativo de 0,92 (intervalo de confiança de 95% [IC95%]: 0.90-0.95; p<0.001). A utilização de um valor de referência de comprimento cervical de 20mm, quando comparado com o valor de referência de 25 mm, melhora a previsão do risco de PPT. Conclusão Este estudo demostra uma associação entre o comprimento cervical avaliado por ecografia tranasvaginal e o risco de PPT, e salienta que a inclusão de outros fatores de risco, como idade materna, PPT anterior e antecedentes de conização podem melhorar o algoritmo de rastreio. Realça ainda que o valor de comprimento cervical utilizado para definir “colo curto” varia de acordo com a população em estudo.

Abstract Pretermbirth (PTB) is a major obstetric problem associated with high rates of neonatal morbidity and mortality. The prevalence of PTB has not changed in the last decade; thus, the establishment of a screening test and effective treatment are warranted. Transvaginal ultrasoundmeasurement of the cervical length (TUCL) has been proposed as an effective method to screen pregnant women at a higher risk of experiencing PTB. Objective To evaluate the applicability and usefulness of second-trimester TUCL to predict PTB in a cohort of Portuguese pregnant women. Methods Retrospective cross-sectional cohort study including all singleton pregnant women who performed their second-trimester ultrasound (between weeks 18 and 22þ6 days) from January 2013 to October 2017 at Centro Hospitalar Universitário São João. Results Our cohort included 4,481 women. The prevalence of spontaneous PTB was of 4.0%, with 0.7% occurring before the 34th week of gestation. The mean TUCL was of 33.8mm,and percentiles 3, 5 and 10 corresponded toTUCLs of 25.0mm, 27.0mmand 29.0mmrespectively. The multiple logistic regression analysis, including maternal age, previous PTB and cervical surgery showed a significant negative association between TUCL and PTB, with an odds ratio (OR) of 0.92 (95% confidence interval [95%CI]: 0.90-0.95; p<0.001). The use of a TUCL of 20mm is the best cut-off, when compared with the 25-mm cut-off, improving the prediction of risk. Conclusion The present study showed an inverse association between TUCL and PTB, and that the inclusion of other risk factors like maternal age, previous PTB and cervical surgery can improve the screening algorithm. Furthermore, it emphasizes that the TUCL cut-off that defines short cervix can differ according to the population.

ABSTRACT Metabolic acidosis is a usual complication of progressive chronic kidney disease and is associated with morbidity and mortality. The correction of metabolic acidosis is a main goal of dialysis. In prevalent hemodialysis patients, acid-base homeostasis depends on many factors, mainly net acid production, amount of alkali given by the dialysate bath and duration of the interdialytic period. At present, the main concern in prevalent hemodialysis patients is not over patients with metabolic acidosis, but rather about the growing numbers of patients with metabolic alkalosis. Several large cohort studies have shown significant associations between high predialysis bicarbonate, as well as blood pH, and morbidity and mortality risk. Based on recent guidelines, we should keep predialysis serum bicarbonate concentrations at 24-26 mEq/L, although this is opinion-based and there is no consensus on the issue. Furthermore, there should be specific focus on the patient´s nutritional status and reversible comorbidities.

RESUMO Objetivo: Avaliar o desempenho do Pediatric Risk of Mortality (PRISM) III e do Pediatric Index of Mortality (PIM) 2 em unidade de terapia intensiva pediátrica. Métodos: Estudo de coorte retrospectivo. Os dados retrospectivos foram coletados dos prontuários de todos os pacientes admitidos na unidade de terapia intensiva pediátrica de um hospital infantil oncológico, entre janeiro de 2017 a junho de 2018. Resultados: A média do PRISM III foi de 15 e do PIM 2 de 24%. Dos 338 pacientes estudados, 62 (18,34%) morreram. A mortalidade estimada pelo PRISM III foi de 79,52 (23,52%) e pelo PIM 2 de 80,19 (23,72%) pacientes, correspondendo a taxa padronizada de mortalidade (intervalo de confiança de 95%) de 0,78 para o PRISM II e 0,77 para o PIM 2. O teste de ajuste de Hosmer-Lemeshow obteve qui-quadrado de 11,56, 8df, com p = 0,975, para PRISM III, e qui-quadrado de 0,48, 8df, p = 0,999, para o PIM 2. Foi obtida área sob a curva Característica de Operação do Receptor de 0,71 para o PRISM III e 0,76 para o PIM 2. Conclusão: Os dois escores superestimaram a mortalidade e demonstraram poder regular de discriminação entre sobreviventes e não sobreviventes. Devem ser desenvolvidos modelos para quantificar a gravidade de pacientes pediátricos com câncer em unidade de terapia intensiva pediátrica e predizer o risco de mortalidade que contemplem suas peculiaridades.

ABSTRACT Objective: To assess the performance of Pediatric Risk of Mortality (PRISM) III and Pediatric Index of Mortality (PIM) 2 scores in the pediatric intensive care unit. Methods: A retrospective cohort study. Data were retrospectively collected from medical records of all patients admitted to the pediatric intensive care unit of a cancer hospital from January 2017 to June 2018. Results: The mean PRISM III score was 15, and PIM 2, 24%. From the 338 studied patients, 62 (18.34%) died. The PRISM III estimated mortality was 79.52 patients (23.52%) and for PIM 2 80.19 patients (23.72%), corresponding to a standardized mortality ratio (95% confidence interval: 0.78 for PRISM II and 0.77 for PIM 2). The Hosmer-Lemeshow chi-square test was 11.56, 8df, 0.975 for PRISM II and 0.48, 8df, p = 0.999 for PIM 2. The area under the Receiver Operating Characteristic curve was 0.71 for PRISM III and 0.76 for PIM 2. Conclusion: Both scores overestimated mortality and have shown a regular ability to discriminate between survivors and non-survivors. Models should be developed to quantify the severity of cancer pediatric patients in Pediatric Intensive Care Units and to predict the mortality risk accounting for their peculiarities.

Resumo: Atualmente, a porção norte da Mata Atlântica é considerada a mais vulnerável, ameaçada e com menos estudos sobre a biota em toda sua extensão. Apresentamos aqui os resultados do inventário herpetofaunístico realizado no Refúgio de Vida Silvestre Matas de Água Azul (RVSMAA), localizada na cadeia de montanhas da Serra do Mascarenhas, estado de Pernambuco, Brasil, um dos maiores remanescentes florestais da porção norte da Mata Atlântica. A amostragem da área foi realizada em quatro expedições onde foram utilizados os métodos de busca visual e estações de armadilhas de interceptação e queda. Um total de 43 espécies de anfíbios e 40 de répteis foram registradas, incluindo anuros, cecílias, lagartos, serpentes e quelônios. A riqueza registrada representa 56% dos anfíbios e 20% dos répteis registrados para a Mata Atlântica ao norte do Rio São Francisco. O RVSMAA possui elevada diversidade de anfíbios e répteis, representando uma das maiores riquezas do norte da Mata Atlântica. O registro de sete espécies incluídas em alguma das listas de espécies ameaçadas para a região reforça a importância da área para a conservação da herpetofauna do Nordeste e acrescenta informações relevantes ao conhecimento e conservação da biodiversidade da Mata Atlântica ao norte do Rio São Francisco.

Abstract: The northern most portion of Atlantic Forest is currently considered as the most vulnerable and threatened in this ecoregion, while also harboring the ecoregion’s least studied biota. Herein we present results of a herpetofaunistic survey in Refúgio de Vida Silvestre (Wildlife Refuge) Matas de Água Azul (RVSMAA), in the mountain range Serra do Mascarenhas, northeastern state of Pernambuco, Brazil, one of the largest forest remnants in the northern Atlantic Forest. The sampling was carried out in four expeditions using methods of visual searching and pitfall traps. A total of 43 species of amphibians and 40 species of reptiles were registered, including anurans, caecilians, lizards, snakes and chelonians. The richness recorded represented 56% of amphibians and 20% of reptiles registered in the Atlantic Forest north of the São Francisco River. The RVSMAA holds a high diversity of amphibians and reptiles, representing one of the highest levels of richness in the northern Atlantic Forest. The record of seven species included in some of the threatened species lists reinforces the importance of the area for the conservation of the Atlantic Forest herpetofauna and adds relevant information to our knowledge of northern Atlantic Forest biodiversity and aids in its assessment of conservation.

Resumo Introdução: Um ressurgimento da sífilis no Brasil tem sido relatado nos últimos anos. Objetivo: Investigar a frequência, as características demográficas e clínicas dos pacientes com sífilis adquirida com envolvimento oral que receberam atendimento médico em um centro de referência em medicina oral em um hospital público brasileiro. Método: Estudo retrospectivo, abrangeu 12 anos, feito para identificar tendências de mudança na sífilis. Registros médicos de todos os pacientes diagnosticados com sífilis adquirida que receberam atendimento médico na clínica de medicina oral do hospital de 2005 a 2016 foram revisados e os dados demográficos e clínicos foram coletados. Resultados: Foram diagnosticas 85 pacientes com sífilis adquirida, com um aumento significativo no número de casos nos últimos 5 anos. A idade dos pacientes variou de 16 a 76 anos, com pico na terceira e quarta décadas; 48 casos eram do sexo masculino (56,5%) e 37 do sexo feminino (43,5%). A maioria das lesões orais apareceu como úlceras ou placas únicas, os lábios e a língua representaram os locais mais afetados. Todos os casos foram positivos para Venereal Disease Research Laboratory e Fluorescent Treponemal Antibody Absorption Test e o tratamento foi feito com penicilina G benzatina na maioria dos casos (84,7%). Conclusão: A frequência da sífilis oral tem aumentado com o tempo e as lesões orais podem representar uma pista diagnóstica; portanto, os profissionais de saúde bucal devem ser conscientizados e devidamente treinados na tentativa de desenvolver um alto grau de suspeição clínica no diagnóstico da sífilis.

Abstract Introduction: A resurgence of syphilis in Brazil has been reported in recent years. Objective: With this in mind, the present study sought to investigate the frequency, demographics, and clinical characteristics of patients with acquired syphilis with oral involvement who received medical care at an Oral Medicine Reference Center in a Brazilian Public Hospital. Methods: A retrospective study, spanning a period of 12 years, was performed to identify changing trends in syphilis over time. Medical records from all patients diagnosed with acquired syphilis who received medical care at the Hospital's Oral Medicine Clinic from 2005 to 2016 were reviewed, and the demographic and clinical data were collected. Results: A total of 85 patients had been diagnosed with acquired syphilis, with a significant increase in the number of cases over the past 5 years. Patients ranged from 16 to 76 years of age, with a peak in the third and fourth decades. Forty-eight cases affected males (56.5%), while 37 cases affected females (43.5%). Most of the oral lesions appeared as unique ulcers or plaques, with the lips and tongue representing the most affected sites. All cases were positive for Venereal Disease Research Laboratory or Fluorescent Treponemal Antibody Absorption, and treatment was performed with Penicillin G benzathine in most cases (84.7%). Conclusion: The frequency of oral syphilis has been rising over time and oral lesions may well represent a diagnostic clue; therefore, oral health professionals must be made aware and properly trained in an attempt to develop a high degree of clinical suspicion in the diagnosis of syphilis.

RESUMO Este estudo analisou a percepção dos estudantes em relação ao apoio à autonomia dos professores nas aulas de educação física (n = 100). Foi usado o instrumento Learning Climate Questionnaire (LCQ). Para comparações entre o pré e pós-teste foi usado o teste de Wilcoxon e entre os grupos o de Kruskal-Wallis, seguido da comparação múltipla das medianas (p ≤ 0,05). Os resultados demonstraram que os índices de apoio à autonomia não se alteraram ao longo das aulas, principalmente no sexo feminino (grupo experimental). Conclui-se que o programa de intervenção não foi suficiente para apresentar alterações na percepção dos alunos em relação ao apoio à autonomia oferecido pelos professores.

ABSTRACT This study analyzed the students’ perception regarding support for the autonomy of teachers in physical education classes (n = 100). We used the instrument Learning Climate Questionnaire (LCQ). For comparisons between the pre and post-test was used Wilcoxon test, and between groups the Kruskal Wallis test, followed by multiple comparisons of medians (p≤0.05). The results showed that the levels of support for autonomy have not changed during the lessons, especially in females (experimental group). In conclusion: the intervention program was not enough to introduce changes in the perception of students regarding support to the autonomy offered by teachers.

RESUMEN Este estudio analizó la percepción de los estudiantes en relación con el apoyo a la autonomía por parte de los profesores en las clases de educación física (n = 100). Se utilizó el instrumento Learning Climate Questionnaire (LCQ). Para las comparaciones entre el pre y post-test se utilizó la prueba de Wilcoxon, y entre los grupos la prueba de Kruskal Wallis, seguida de comparaciones múltiples de las medianas (p ≤ 0,05). Los resultados mostraron que los niveles de apoyo para la autonomía no han cambiado durante las clases, especialmente en las mujeres (grupo experimental). En conclusión, el programa de intervención no fue suficiente para introducir cambios en la percepción de los estudiantes sobre el apoyo a la autonomía ofrecido por los profesores.

RESUMO Objetivo: Avaliar a hidratação de adolescentes obesos e não obesos por meio dos gráficos da análise vetorial por bioimpedância (BIVA), além de verificar as associações entre a obesidade e os parâmetros da BIVA. Métodos: Estudo transversal realizado com adolescentes entre 14 e 18 anos (n=489, 300 meninos e 189 meninas). A bioimpedância elétrica (BIA; Quantum_II, RJL system, Roma, Itália) ofereceu os parâmetros de resistência e reactância para calcular o ângulo de fase (AF), a massa livre de gordura (MLG) e a gordura corporal (GC). As elipses de confiança foram comparadas e a construção das elipses de tolerância permitiu a avaliação individual e a qualitativa dos vetores e, ainda, a classificação em desidratados, normohidratados e hiper-hidratados. Resultados: Participaram do estudo 78 adolescentes obesos e 411 eutróficos. A resistência (p<0,001), a reactância (p<0,001) e a normalização desses pela estatura (p<0,001) estavam reduzidas nos obesos, enquanto o AF foi superior (p=0,003). O percentual de gordura corporal (%GC) foi 11,3% maior nos adolescentes obesos. O vetor principal dos obesos, tanto masculino (Distância de Mahalanobis (D)=1,38; p<0,001) quanto feminino (D=1,49; p<0,001), indicou maior hidratação. A elipse de tolerância da amostra total mostrou que 25 adolescentes (32,1%) estavam hiper-hidratados e dois (2,6%) vetores posicionados no sentido de desidratação. Dezessete (53,2%) meninas e 16 (34,8%) meninos estavam hiper-hidratados. A regressão logística mostrou relação inversa do índice de massa corpórea (IMC) com a resistência (p<0,001) e a reactância (p<0,001), ambas normalizadas pela estatura. Os adolescentes com aumento do AF (p<0,001) apresentaram duas vezes mais chances de serem classificados como obesos. Conclusões: Os adolescentes obesos estavam hiper-hidratados e houve relação inversa do IMC com a resistência e direta com o AF.

ABSTRACT Objective: To evaluate the hydration of obese and non-obese adolescents by vectorial bioimpedance analysis, in addition to verifying the associations between obesity and bioelectrical impedance vectorial analysis (BIVA) parameters. Methods: A cross-sectional study with adolescents between 14 and 18 years old (n=489, 300 boys and 189 girls). Electric bioimpedance (BIA; Quantum_II, RJL system, Rome, Italy) provided resistance and reactance parameters to calculate phase angle (PA), fat-free mass (FFM) and body fat (%BF). The confidence ellipses were compared, and the construction of the tolerance ellipses allowed individual and qualitative evaluation of the vectors and classification in dehydrated, normohydrated and hyperhydrated. Results: 78 obese and 411 eutrophic adolescents participated. Resistance (p<0.001) and reactance (p<0.001) and their normalization by stature (p<0.001) were reduced in the obese, whereas the PA was higher (p=0.003). %BF was 11.3% higher in obese adolescents. The main vector of the obese, both male (D=1.38; p<0.001) and female (D=1.49; p<0.001), indicated greater hydration. The ellipse of tolerance of the total sample showed that 25 (32.1%) were hyperhydrated and 02 (2.6%) vectors positioned in the sense of dehydration. A total of 17 (53.2%) girls and 16 (34.8%) boys were hyperhydrated. Logistic regression showed an inverse relation of BMI with resistance (p<0.001), reactance (p<0.001) and both normalized by stature. Adolescents with increased PA (p<0.001) were twice as likely to present obesity. Conclusions: Obese adolescents were hyperhydrated and there was an inverse relationship of BMI with resistance and direct with PA.