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The role of wound protectors in laparoscopic surgeries is highly controversial in the literature. Some studies demonstrate their benefit in reducing the rate of surgical site infections; however, these results are not reproducible across all procedures. In addition to protecting the operative wound, these devices can be used at sites of surgical specimen extraction in laparoscopic procedures. Several commercially available devices serve this purpose but are scarcely available in resource-limited settings. One of the reasons for this limitation is the cost of the device. In this technical note, we aim to provide a cost-effective option utilizing materials readily available in the operating room and with a simple fabrication process.

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Purpose: To describe the acoustic characteristics of a classroom, voice quality, fatigue, and vocal load of university professors. Methods: Exploratory, observational, longitudinal, and descriptive study with a single group of participants, including vocal monitoring data over two weeks. Acoustic characterization of the classroom, perceptual-auditory evaluation, and acoustic analysis of voice samples were conducted before and after classes. Vocal dosimetry was performed during classes, and the Vocal Fatigue Index (VFI) was assessed at the beginning of each week. Descriptive analysis of the findings was conducted, and randomization test was performed to verify the internal reliability of the judge. Results: All participants reported speaking loudly in the classroom, with the majority reporting vocal changes in the past six months, and only one participant reported a current vocal change. The classroom had acoustical measures and estimations that deviated from established standards. The professors used high vocal intensities during classes. After the classes, an increase in the absolute values of the aggregated data for CAPE-V, jitter, and fundamental frequency was found, varying within the range of normality. Furthermore, there was an observed increase in both post-lesson intensity and VFI when comparing the two-week period. Conclusions: Vocal intensities and VFI were possibly impacted by the acoustics of the classroom. The increase in average VFI between the weeks may be attributed to a cumulative fatigue sensation. Further research with a larger number of participants and in acoustically conditioned classrooms is suggested in order to evaluate collective intervention proposals aimed at reducing the vocal load on teachers.

Objetivo: Describir las características acústicas, calidad vocal, fatiga y carga vocal de profesores universitarios. Métodos: Estudio exploratorio, observacional, longitudinal, descriptivo con un solo grupo de participantes y datos de monitoreo vocal durante dos semanas. Se realizó caracterización acústica de la sala, evaluación auditiva-perceptiva y acústica de muestras de voz antes y después de las clases. Se realizó dosimetría vocal durante las clases y se verificó el Índice de Fatiga Vocal (IFV) en dos semanas. Se realizó un análisis descriptivo de los hallazgos y una prueba de aleatorización para verificar la confiabilidad interna del juez. Resultados: Todos los participantes informaron hablar en voz alta en clase, la mayoría informó cambios vocales en los últimos seis meses y solo uno informó cambios vocales actuales. La sala presentó mediciones y estimaciones acústicas fuera de las normas establecidas. Los profesores utilizaron intensidades vocales altas durante las clases. Hubo un aumento en los valores absolutos de los datos agrupados para CAPE-V, jitter y frecuencia fundamental, variando dentro de los límites normales, después de las clases. La intensidad después de las clases y el IFV, en la comparación entre las dos semanas, mostraron un aumento. Conclusiones: La dosis vocal y el IFV posiblemente se vieron afectados por la acústica del aula. El aumento del IFV medio entre semanas pudo deberse a la sensación de cansancio acumulada. Se sugieren nuevas investigaciones con un mayor número de participantes y que se realicen en la sala acondicionada acústicamente para evaluar propuestas de intervención colectiva, con el objetivo de reducir la carga vocal de los docentes.

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OBJECTIVES: Patients undergoing hematopoietic stem cell transplantation may present with metabolic alterations that can have an effect on their energy expenditure and nutritional status. This project aimed to compare the pre- and posttransplant energy expenditures of patients undergoing hematopoietic stem cell transplantation as well as related factors. METHODS: This prospective study was conducted at a single center. Patients, undergoing autograft or allograft, were evaluated before transplantation and on the 10th and 17th d posttransplantation. Energy expenditure was measured by indirect calorimetry. Diet intake was assessed by a 24-h dietary recall. Infectious and noninfectious complications were analyzed between days 1 to 10 after transplantation and days 11 to 17 after transplantation. Paired model analyses were carried out to identify the pretransplantation and posttransplantation periods. RESULTS: Twenty patients were evaluated with a mean age of 45.6 ± 17.2 y; a majority were male sex (65%), and the most frequent diagnoses were chronic myeloid leukemia (25%) and multiple myeloma (25%). Energy expenditure increased by 15% posttransplantation, and the energy requirement per kilogram of weight was 23 kcal/kg at day 10 after transplantation. Throughout the posttransplantation period, 45% of the patients required nutritional therapy. Negative energy and negative protein balance were observed at all analyzed times. Phase angle (P = 0.018), fever (P = 0.014), mucositis grades I to II (P = 0.018), and the total number of infectious and noninfectious events (P = 0.043) were associated with an increase in energy expenditure at day 10 after transplantation. CONCLUSIONS: Energy expenditure increased after transplantation compared with pretransplantation in 50% of patients. Phase angle, fever, grades I to II mucositis, and infectious and noninfectious events were associated with increased energy expenditure at day 10 after transplantation.

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Abstract This article analyses the dynamics and psychological processes underlying judicialized conflicts that are known as parental alienation, examining three case studies in the light of psychoanalysis. The litigation experienced by the child reflects their embarrassments with the Other in their search for answers to their enigmas and affections, amid guerrilla warfare between those who occupy parental roles. The study pinpoints the pathways required to understand parental alienation: in a socio-historical journey through how parental and marital ties are conceived and recreated; in a passage through the grief that the subjects suffer during family reconstitution; and through a rereading of the phenomenon focused on the uniqueness of the symptom. We are hopeful that it will support a more critical and skilled praxis for those who work in the judiciary.

Resumo Este artigo analisa dinâmicas e processos psíquicos subjacentes aos conflitos judicializados sob a nomeação de alienação parental, através de três estudos de caso, à luz da psicanálise. O litígio vivenciado pela criança reflete seus embaraços com o Outro na busca por respostas aos seus enigmas e afetos, em meio à guerrilha daqueles que se ocupam das funções parentais. O estudo localiza travessias necessárias à compreensão da alienação parental: das formas sócio-históricas de se conceber e recriar os laços familiares; dos lutos no percurso da recomposição familiar; da releitura do fenômeno visando à singularidade do sintoma. Espera-se contribuir para uma práxis mais crítica e qualificada dos que atuam no Judiciário.

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ABSTRACT The role of wound protectors in laparoscopic surgeries is highly controversial in the literature. Some studies demonstrate their benefit in reducing the rate of surgical site infections; however, these results are not reproducible across all procedures. In addition to protecting the operative wound, these devices can be used at sites of surgical specimen extraction in laparoscopic procedures. Several commercially available devices serve this purpose but are scarcely available in resource-limited settings. One of the reasons for this limitation is the cost of the device. In this technical note, we aim to provide a cost-effective option utilizing materials readily available in the operating room and with a simple fabrication process.

RESUMO O papel dos protetores de ferida operatória em cirurgias laparoscópicas é bastante controverso na literatura. Alguns estudos demonstram seu benefício na redução da taxa de infeções de sítio cirúrgico, porém esses resultados não são reprodutíveis em todos os procedimentos. Além da proteção da ferida operatória, esses dispositivos podem ser utilizados nos sítios de extração de peças cirúrgicas em procedimentos laparoscópicos. Há vários dispositivos comercialmente disponíveis para esse fim, entretanto são pouco disponíveis nos serviços com menos recursos. Um dos motivos dessa limitação é o custo do dispositivo. Nesta nota, buscamos oferecer uma opção barata que utiliza materiais amplamente disponíveis no centro cirúrgico e cuja confecção é simples.

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Studies indicate EGFL7 as an important gene in controlling angiogenesis and cancer growth, including in colorectal cancer (CRC). Anti-EGFL7 agents are being explored, yet without promising results. Therefore, the role of EGFL7 in CRC carcinogenesis should be investigated. This study aimed to evaluate the prognostic value of EGFL7 expression in CRC and the signaling pathways influenced by this gene. EGFL7 expression was evaluated through immunohistochemistry in 463 patients diagnosed with CRC and further associated with clinicopathological data, angiogenesis markers and survival. In silico analyzes were performed with colon adenocarcinoma data from The Cancer Genome Atlas. Analysis of enriched gene ontology and pathways were performed using the differentially expressed genes. 77.7% of patients presented low EGFL7 expression, which was associated with higher lymph node spread and invasion of lymphatic vessels, with no impact on survival. Additionally, low EGFL7 expression was associated with high VEGFR2 expression. Finally, we found in silico that EGFL7 expression was associated with cell growth, angiogenesis, and important pathways such as VEGF, Rap-1, MAPK and PI3K/Akt. Expression of EGFL7 in tumor cells may be associated with important pathways that can alter functions related to tumor invasive processes, preventing recurrence and metastatic process.

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Dystrophinopathies are muscle diseases caused by pathogenic variants in DMD, the largest gene described in humans, representing a spectrum of diseases ranging from asymptomatic creatine phosphokinase elevation to severe Duchenne muscular dystrophy (DMD). Several therapeutic strategies are currently in use or under development, each targeting different pathogenic variants. However, little is known about the genetic profiles of northeast Brazilian patients with dystrophinopathies. We describe the spectrum of pathogenic DMD variants in a single center in northeast Brazil. This is an observational, cross-sectional study carried out through molecular-genetic analysis of male patients diagnosed with dystrophinopathies using Multiplex Ligation-dependent Probe Amplification (MLPA) followed by Next-Generation Sequencing (NGS)-based strategies. A total of 94 male patients were evaluated. Deletions (43.6%) and duplications (10.6%) were the most recurring patterns of pathogenic variants. However, small variants were present in 47.1% of patients, most of them nonsense variants (27.6%). This is the largest South American single-center case series of dystrophinopathies to date. We found a higher frequency of treatment-amenable nonsense single-nucleotide variants than most previous studies. These findings may have implications for diagnostic strategies in less-known populations, as a higher frequency of nonsense variants may mean a higher possibility of treating patients with disease-modifying drugs.

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EGFL7 is a proangiogenic factor. It has been widely described with having a vital role in tubulogenesis and regulation of angiogenesis, mainly during embryogenesis and organogenesis. It has been mainly associated with NOTCH pathway, but there are reports showing association with MAPK and integrin pathways. Given its association with angiogenesis and these other pathways, there are several studies associating EGFL7 with carcinogenesis. In fact, most of the studies have pointed to EGFL7 as an oncogene, and some of them suggest EGFL7 expression as a possible biomarker of prognosis or use for a patient's follow-up. Here, we review the molecular pathways which EGFL7 is associated and highlight several studies describing the role of EGFL7 in tumorigenesis, separated by tumor type. Besides its role on angiogenesis, EGFL7 may act in other pathways as oncogene, which makes it a possible biomarker and a candidate to targeted therapy.

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Introdução: Devido a infecção congênita, a criança com microcefalia possui grandes limitações de sua condição de saúde. Estas limitações fazem com que a criança necessite de maior atenção de saúde e domiciliar. Geralmente, a mãe torna-se cuidadora principal desta criança, esse papel pode levar a sobrecarga com prejuízos em sua qualidade de vida. Objetivo: Analisar sobrecarga do cuidado e a qualidade de vida de mães ou cuidadoras principais de crianças com microcefalia relacionada à infecção congênita. Método: Estudo transversal, correlacional, realizado com 105 participantes do estado de Sergipe, Brasil, durante o período de outubro de 2017 a abril de 2018, através da aplicação questionários: sociodemográfico, WHOQOL-Bref e Sobrecarga do cuidador. Para análise estatística foram utilizados testes ANOVA, teste t e Person (r). Resultados: A totalidade dos participantes era do sexo feminino, 39 % foram classificadas com sobrecarga severa e 30,5% com sobrecarga intensa. A média total da sobrecarga (49,47) indica classificação de moderada à severa. Houve uma forte associação (p<0,0001) entre os níveis de sobrecarga e os domínios da qualidade de vida, sendo o de maior prejuízo o ambiental (36,57) e o físico (38,53). Foi observada uma correlação significativa e inversamente proporcional (r=-0,547, p<0,0001) entre a qualidade de vida e a sobrecarga do cuidador. Conclusão: As mães sofrem sobrecarga severa e intensa que pode levar a repercussões negativas em sua qualidade de vida. A enfermagem pode contribuir na criação e implementação de linhas de cuidados específicas para estas mulheres com ênfase na promoção da saúde física, mental e melhora da qualidade de vida.

Introducción: Debido a la infección congénita, las niñas y los niños con microcefalia tienen grandes limitaciones en su estado de salud. Estas limitaciones hacen que necesiten más atención sanitaria y domiciliaria. Generalmente, la madre se convierte en la principal cuidadora y este papel puede llevar a la sobrecarga, con perjuicio para su calidad de vida. Objetivo: Analizar la sobrecarga de cuidado y la calidad de vida de las madres o personas cuidadoras primarias de niñas o niños con microcefalia, relacionada con infección congénita. Método: Estudio transversal, correlacional realizado con 105 participantes del estado de Sergipe, Brasil, de octubre de 2017 a abril de 2018, a través de la aplicación de los siguientes cuestionarios: sociodemográfico, el WHOQOL-Bref y escala de sobrecarga del cuidador. Para el análisis estadístico, se utilizaron ANOVA, prueba t y prueba Person (r). Resultados: Población totalmente femenina. El 39 % se clasificó con sobrecarga severa y el 30.5 % con sobrecarga intensa. La sobrecarga media total (49.47) indica una clasificación de moderada a grave. Hubo una fuerte asociación (p<0.0001) entre los niveles de carga y los dominios de la calidad de vida, siendo los mayores daños ambientales (36.57) y físicos (38.53). Se observó una correlación significativa e inversamente proporcional (r=-0.547, p<0.0001) entre la calidad de vida y la sobrecarga de la persona cuidadora cuidador. Conclusión: Las madres sufren una sobrecarga severa e intensa que influye negativamente en su calidad de vida. La enfermería puede contribuir para la creación e implementación de líneas de atención específicas para estas mujeres con énfasis en la promoción de la salud física y mental y la mejora de la calidad de vida.

Introduction: Due to congenital infection, children with microcephaly have great limitations due to this condition. These limitations make the child need more health and home care. Generally, the mother becomes the main caretaker for this child, this role can lead to overload feelings that affect their quality of life. Objective: To analyze the role overload and the quality of life of mothers or primary caregiver of children with microcephaly related to congenital infection. Method: Cross-sectional, correlational study carried out with 105 participants from the state of Sergipe, Brazil, during the period from October 2017 to April 2018, through the application of questionnaires: sociodemographic, WHOQOL-Bref, and caregiver burden. For statistical analysis, ANOVA, t-test, and Pearson (r) tests were used. Results: All of the participants were females, 39 % were classified with severe role overload and 30.5% with intense role overload. The total average of this caregiver burden (49.47) presents a moderate to severe classification. There was a strong correlation (p<0.0001) between the levels of their role overload and the domains of their quality of life, where the greatest damage was in the environmental (36.57) and physical (38.53) aspects. A significant and inversely proportional correlation (r=-0.547, p<0.0001) was observed between the quality of life and the caregiver burden. Conclusion: Mothers suffer severe and intense caregiver overload that has a negative influence on their quality of life. Nursing can contribute to the creation and implementation of specific lines of care for these women emphasizing the promotion of physical and mental health to improve their quality of life.

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In the last decades, the growth of world agricultural activity has significantly contributed to the increased presence of emerging pollutants such as atrazine (ATZ) in aquatic ecosystems. Due to its high stability to the natural or artificial degradation processes, the ATZ environmental remediation by adsorption has been investigated. In this study, a graphitic-porous-carbon- (GPC) based material with magnetic domains was applied to remove ATZ from aqueous solution. ATZ high adsorption efficiency in a reduced time was achieved in the presence of the GPC adsorbent, leading to a detailed investigation of the mechanisms involved in the adsorption processes. Pseudo-first-order (PFO), pseudo-second-order (PSO), Ritchie, Elovich, and Weber-Morris models were applied to calculate the kinetic process efficiency. Likewise, adsorption isotherms based on Langmuir, Freundlich, Temkin, and Redlich-Peterson models were applied for a detailed understanding of the adsorption mechanisms. GPC was successfully applied for ATZ remediation in natural waters, confirming its high potential for treating natural waters contaminated by ATZ using adsorption process. The material can also be recovered and reused for up to 4 application cycles due to its magnetic properties, showing that in addition to ATZ adsorption efficiency, its sustainable use can be achieved.

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