Acuidade visual: um olhar para crianças escolares / Visual acuity: a look at school children

RESUMO Introdução: A visão é um dos sentidos que mais integra o indivíduo ao meio ambiente, pois capta a maior parte dos estímulos sensoriais aos quais o ser humano está exposto, e é justamente essa integração que permite a criação de memórias e a formação do conhecimento. A baixa visão na infância prejudica o aprendizado, a socialização e também a qualidade visual na idade adulta. Objetivo: Identificar a acuidade visual de crianças escolares, utilizando a tabela de Snellen e encaminhar e realizar intervenções necessárias naquelas com baixa visão. Métodos: Estudo transversal, com abordagem quantitativa. Utilizou-se a tabela de Snellen para determinar a acuidade visual de alunos do 1º ano do ensino fundamental da rede estadual de ensino. Resultados: Os participantes tem idade de 5 a 7 anos, sendo 40 do sexo feminino e 38 do sexo masculino. Destes, 23 apresentavam baixa acuidade visual e foram encaminhados para consulta oftalmológica. Conclusão: Com base nos resultados do presente estudo, sugere-se que a aplicação do teste de Snellen, por ser um teste de triagem de fácil treinamento e baixo custo, torne-se útil na promoção de saúde ocular. Sugere-se a importância da continuidade de estudos como este, visando na sensibilidade e na especificidade, com foco nas crianças escolares.

ABSTRACT Introduction: Vision is one of the senses that most integrates the individual with the environment, since it captures most of the sensory stimuli to which the human being is exposed, and it is precisely this integration that allows the creation of memories and the formation of the knowledge. Low vision in childhood impairs learning, socialization, and also determines visual quality in adulthood. Objective: to identify the visual acuity of school children using the Snellen Test and refer and carry out actions with those with low vision. Methods: Cross-sectional study with a quantitative approach. The Snellen Table was used to determine the visual acuity of students in the 1st year of elementary school in the state education network. Results: Participants are aged 5-7 years, 40 females and 38 males. Of these, 23 had low visual acuity and were referred to an ophthalmological consultation. Conclusion: Based on the results of the present study, the application of the Snellen Test is suggested, as it is an easy-to-train, low-cost screening test, so that it become useful in promoting eye health. Continuing studies like this one are important and target sensitivity and specificity, with a focus on schoolchildren.

An Early and Sustained Inflammatory State Induces Muscle Changes and Establishes Obesogenic Characteristics in Wistar Rats Exposed to the MSG-Induced Obesity Model.

The model of obesity induced by monosodium glutamate cytotoxicity on the hypothalamic nuclei is widely used in the literature. However, MSG promotes persistent muscle changes and there is a significant lack of studies that seek to elucidate the mechanisms by which damage refractory to reversal is established. This study aimed to investigate the early and chronic effects of MSG induction of obesity upon systemic and muscular parameters of Wistar rats. The animals were exposed to MSG subcutaneously (4 mg·g-1 b.w.) or saline (1.25 mg·g-1 b.w.) daily from PND01 to PND05 (n = 24). Afterwards, in PND15, 12 animals were euthanized to determine the plasma and inflammatory profile and to assess muscle damage. In PND142, the remaining animals were euthanized, and samples for histological and biochemical analyses were obtained. Our results suggest that early exposure to MSG reduced growth, increased adiposity, and inducted hyperinsulinemia and a pro-inflammatory scenario. In adulthood, the following were observed: peripheral insulin resistance, increased fibrosis, oxidative distress, and a reduction in muscle mass, oxidative capacity, and neuromuscular junctions, increased fibrosis, and oxidative distress. Thus, we can conclude that the condition found in adult life and the difficulty restoring in the muscle profile is related to the metabolic damage established early on.

Oral manifestations of Chediak-Higashi syndrome: A systematic review.

Chediak-Higashi syndrome (CHS) is an autosomal recessive disorder characterized by leukocytes with giant secretory granules and a myriad of clinical features. However, it is unknown whether oral lesions are part of the syndrome or are refractory to systemic treatment. Herein, we integrated the available data published in the literature on the oral manifestations of individuals with CHS. Searches on PubMed, Web of Science, Embase, Scopus, and LILACS were conducted to identify studies published up to March/2022. The Joanna Briggs Institute tool was used for the critical appraisal of studies. Fourteen articles (21 cases) were detected. The mean age of individuals was 15.9±8.8 years. There was a slight predominance of males (52.4%). The major manifestation was periodontal disease (81%), although ulceration of the oral mucosa (14.3%), gingival/labial abscess (4.8%), and periodontal abscess (4.8%) were also reported. Oral rehabilitation including dental implants (9.5%) was performed after tooth losses due to the poor prognosis of periodontal therapy. CHS is usually diagnosed in an early stage due to its systemic manifestations such as classic oculocutaneous albinism, recurrent infections, and a propensity for bleeding. Oral health providers should be aware of the manifestations of individuals with CHS. Special care, including oral prophylaxis, is indispensable.

The Relationship between Reactive Oxygen Species and the cGAS/STING Signaling Pathway in the Inflammaging Process.

During Inflammaging, a dysregulation of the immune cell functions is generated, and these cells acquire a senescent phenotype with an increase in pro-inflammatory cytokines and ROS. This increase in pro-inflammatory molecules contributes to the chronic inflammation and oxidative damage of biomolecules, classically observed in the Inflammaging process. One of the most critical oxidative damages is generated to the host DNA. Damaged DNA is located out of the natural compartments, such as the nucleus and mitochondria, and is present in the cell's cytoplasm. This DNA localization activates some DNA sensors, such as the cGAS/STING signaling pathway, that induce transcriptional factors involved in increasing inflammatory molecules. Some of the targets of this signaling pathway are the SASPs. SASPs are secreted pro-inflammatory molecules characteristic of the senescent cells and inducers of ROS production. It has been suggested that oxidative damage to nuclear and mitochondrial DNA generates activation of the cGAS/STING pathway, increasing ROS levels induced by SASPs. These additional ROS increase oxidative DNA damage, causing a loop during the Inflammaging. However, the relationship between the cGAS/STING pathway and the increase in ROS during Inflammaging has not been clarified. This review attempt to describe the potential connection between the cGAS/STING pathway and ROS during the Inflammaging process, based on the current literature, as a contribution to the knowledge of the molecular mechanisms that occur and contribute to the development of the considered adaptative Inflammaging process during aging.

Whole-Body Vibration Promotes Skeletal Muscle Restructuring and Reduced Obesogenic Effect of MSG in Wistar Rats.

The negative changes of obesity to the locomotor system are a major concern in the current scenario, where obesity and metabolic syndrome are recurrent in Western societies. A physical exercise is an important tool as a way to rehabilitate obesity, highlighting whole-body vibration, as it is an easy-access modality with few restrictions. In this sense, we sought to evaluate the effect of whole-body vibration on the extensor digitorum longus muscle on a monosodium glutamate-induced obesity model. The main findings of the present study are related to the ability of the treatment with vibration to reduce the obesogenic characteristics and slow down the dyslipidemic condition of the animals. Likewise, the vibration promoted by the vibrating platform was essential in the recovery of the muscle structure, as well as the recovery of the muscle's oxidative capacity, initially compromised by obesity.

Development of a histopathological index for skeletal muscle analysis in Rattus norvegicus (Rodentia: Muridae).

Skeletal muscle histopathological changes induced or caused by pathologies in animal models, can impair functionality, being the main focus of therapeutic studies. This study aimed to propose a histopathological index to assess, in a quantitative manner, skeletal muscle changes induced by experimental protocols for Rodentia's models. For the development, evaluation of fit and parsimony, replicability, and sensitivity index, Wistar rats from experiments with the same experimental design, but with different variation factors, were used to achieve different levels of damage. The anterior tibial muscle of these animals was collected, processed histologically, and stained with hematoxylin and eosin. The adjustment and parsimony of the index were availed through Confirmatory Factor Analysis, reproducibility for evaluation of three people trained through the Intra-Class Correlation, and the discrimination capacity through a one-way ANOVA Test. We pointed out the adjustment for the proposed index while the ICC showed high reproducibility (n = 56; k = 3; ICC = 0.9790) and differences in the extent of damage between groups, following the hierarchical association promoted by experimental model stresses. The results show that the proposed index has a good fit and parsimony (χ2 = 426.34; p < 0.0001), in addition to being easily replicable by other researchers who know the morphology of muscle tissue and its morphological changes. It is worth mentioning that the development of tools that facilitate histopathological analysis, and that can quantitatively express the findings, are of great importance for the studies of regenerative science, reinforcing the relevance of this study.

Suffering and defense mechanisms: an analysis of the work of Primary Health Care nurses / Sufrimiento y mecanismos de defensa: análisis del trabajo de enfermeras de la Atención Primaria de Salud / Sofrimento e mecanismos de defesa: análise do trabalho de enfermeiras na Atenção Primária à Saúde

ABSTRACT Objective: To analyze the suffering and coping strategies of nurses working in Primary Health Care considering the psychodynamics of their work. Methods: Descriptive study with a qualitative approach, carried out with 11 nurses working in Primary Health Care. Data were collected through semi-structured interviews, systematized, and interpreted using Bardin's content analysis method applied to recurrent themes. Results: The suffering factors related to work in Primary Health Care are difficulties with management, the fragile structure of the health support network, and conflicts with the users. Defensive strategies to minimize these difficulties are the support of hierarchical superiors, the empowerment of the community and users, and communication between team members. Final considerations: It is important that there be changes in the organization of this line of work to improve the workers' health.

RESUMEN Objetivo: Analizar el sufrimiento y mecanismos de defensa de enfermeros actuantes en la Atención Primaria de Salud a la luz de la psicodinámica del trabajo. Métodos: Estudio descriptivo con abordaje cualitativo realizado con 11 enfermeras actuantes en la Atención Primaria de Salud. Datos fueron recolectados mediante entrevista semiestructurada, sistematizados e interpretados utilizándose el análisis de contenido de Bardin en la modalidad temática. Resultados: Factores de sufrimiento relacionados al trabajo en la Atención Primaria de Salud son las dificultades con la gestión, estructura debilitada de la red de apoyo a la salud y conflictos con los usuarios. Las estrategias defensivas para minimizar esas dificultades son el apoyo de los superiores jerárquicos, el empoderamiento de la comunidad o de los usuarios y la comunicación entre los miembros de equipe. Consideraciones finales: Es importante que haya cambios en la organización del trabajo para que mejorías sean alcanzadas en la salud de los trabajadores.

RESUMO Objetivo: Analisar o sofrimento e os mecanismos de defesa de enfermeiros atuantes na Atenção Primária à Saúde à luz da psicodinâmica do trabalho. Métodos: Estudo descritivo com abordagem qualitativa realizado com 11 enfermeiras atuantes na Atenção Primária à Saúde. Os dados foram coletados mediante entrevista semiestruturada, sistematizados e interpretados utilizando-se a análise de conteúdo de Bardin na modalidade temática. Resultados: Os fatores de sofrimento relacionados ao trabalho na Atenção Primária à Saúde são as dificuldades com a gestão, a estrutura fragilizada da rede de apoio à saúde e os conflitos com os usuários. As estratégias defensivas para minimizar essas dificuldades são o apoio dos superiores hierárquicos, o empoderamento da comunidade ou dos usuários e a comunicação entre os membros de equipe. Considerações finais: É importante que haja mudanças na organização do trabalho para que melhorias sejam alcançadas na saúde dos trabalhadores.

Suffering and defense mechanisms: an analysis of the work of Primary Health Care nurses.

OBJECTIVE: To analyze the suffering and coping strategies of nurses working in Primary Health Care considering the psychodynamics of their work. METHODS: Descriptive study with a qualitative approach, carried out with 11 nurses working in Primary Health Care. Data were collected through semi-structured interviews, systematized, and interpreted using Bardin's content analysis method applied to recurrent themes. RESULTS: The suffering factors related to work in Primary Health Care are difficulties with management, the fragile structure of the health support network, and conflicts with the users. Defensive strategies to minimize these difficulties are the support of hierarchical superiors, the empowerment of the community and users, and communication between team members. FINAL CONSIDERATIONS: It is important that there be changes in the organization of this line of work to improve the workers' health.

Fatores associados ao tempo e à frequência do aleitamento materno / Factors associated with time and frequency of breast-feeding

Objetivos: Avaliar os fatores que determinam o tipo e o tempo de aleitamento materno, bem como delinear sobre a situação social e nutricional de mulheres atendidas na rede de atenção primária à saúde no município de Juiz de Fora (MG). Métodos: Realizaram-se quatro avaliações: a primeira no terceiro trimestre da gestação, e as outras, nos 1o, 3o e 6o meses pós-parto. Inicialmente, aplicou-se um questionário sobre amamentação e um Recordatório 24 horas, também aplicado no 6o mês pós-parto. Posteriormente, questionou-se sobre a frequência, tipo de aleitamento e dificuldades no manejo. Resultados: As variáveis que influenciaram significativamente no aleitamento materno exclusivo nos 1°, 3° e 6° meses foram: maior consumo mediano de Vitamina C e B9, maior desempenho no teste sobre amamentação, idade da mãe entre 20 e 35 anos, consumo adequado de carboidratos e suplementação de complexo vitamínico. Os fatores protetores do aleitamento materno exclusivo ou predominante foram: apresentar alguma dificuldade para amamentar e dieta inadequada em relação aos lipídios. Já os fatores de risco foram: fumo na gestação, não saber responder sobre o correto manejo da lactação e renda familiar menor que um salário mínimo. Conclusões: Variáveis maternas, dietéticas, socioeconômicas e conhecimentos sobre o manejo da lactação influenciaram no tempo e tipo do aleitamento materno.

Objectives: To evaluate the factors determining the type and maternal breastfeeding time and report on the social and nutritional status of women at the local network of primary health care in the city of Juiz de Fora (MG). Methods: There were four evaluations: the first in the third trimester of pregnancy and the others in the first, third, and sixth months following delivery. At first, we applied a questionnaire about breastfeeding and 24-hour dietary recall, also applied in the sixth month postpartum. Subsequently, they were asked about the frequency, type of feeding, and difficulties in management. Results: The variables that significantly influenced the exclusive breastfeeding in the first, third, and sixth months were higher mean intake of vitamins C and B9, higher scores in the test on breastfeeding, mother aged between 20 and 35 years old, adequate intake of carbohydrates and supplementation of vitamin complex. Protective factors in exclusive or predominant breastfeeding were having some difficulty in breastfeeding and inadequate diet in relation to lipids. However, the risk factors were smoking during pregnancy, being unable to correctly answer about lactation management, and family income lower than one minimum wage. Conclusions: Maternal variables, diet, socioeconomic, and knowledge about lactation management influenced the time and type of breastfeeding.

Biological properties of functional flavoring produced by enzymatic esterification of citronellol and geraniol present in Cymbopogon winterianus essential oil.

The chemical composition and biological properties of citronella essential oil were modified by enzymatic esterification reaction of the major monoterpenic alcohols with cinnamic acid. The almost complete conversion of geraniol and citronellol present in the citronella (Cymbopogon winterianus) essential oil, into geranyl (99%) and citronellyl (98%) cinnamates was obtained after 48 hours of reaction using a molar ratio of 3:1 (cinnamic acid/alcohol), lipase concentration (Novozym 435) of 15% (w/w) and 70 °C. The esterified oil showed higher antimicrobial activity against Staphylococcus aureus bacteria resistant to oxacillin and penicillin and also greater larvicidal activity against Aedes aegypti larvae compared to unesterified oil. The results concerning the evaluation of toxicity against Artemia salina and cytotoxicity against monkey kidney epithelial cells also showed the superiority of the esterified oil.

Whole-body vibration promotes lipid mobilization in hypothalamic obesity rat.

OBJECTIVES: This study aimed to analyze the effect of whole-body vibration (WBV) on metabolic parameters using the monosodium l-glutamate (MSG) model of obesity. METHOD: MSG-obese rats that were exposed to WBV on a vibrating platform with 60 Hz frequency, 2 mm amplitude, three times/week, 10 min/day, during eight weeks (from postnatal day (PN) 80 to PN136). Blood glucose, creatine kinases (CK and CK-MB) and lipid profile through plasma and liver levels of lipids and lipoproteins were evaluated. Morphology and oxidative stress of adipose and hepatic tissues were further evaluated. RESULTS: When performing a WBV exercise, animals showed contrasting metabolic responses. Vibration Control group (CTL-WBV) presented a reduction in CK and liver triacylglycerol, an increase in glucose, lactate, total cholesterol, liver cholesterol, and LDL while MSG Vibration group (MSG-WBV) showed an increase in total triacylglycerol, VLDL, lactate, CK, liver cholesterol, additional liver lipid peroxidation and LDL, total cholesterol and CKMB reduction. CONCLUSION: Even although the MSG is a model of impacting injury, the metabolic demand of WBV exercise was able to induce mobilization of substrates, highlighting the lipid mobilization in obese animals, it should be used as a metabolic rehabilitation tool in patients with metabolic diseases, such as obesity and diabetes.

Alterations in neuromuscular junctions and oxidative stress of the soleus muscle of obese Wistar rats caused by vibratory platform training.

OBJECTIVES: evaluate the effects that whole-body vibration (WBV) causes on the neuromuscular junctions and oxidative stress of the soleus muscle of obese Wistar rats. METHODS: 32 male Wistar rats were used, 16 of which were obesity induced by monosodium glutamate, randomized into four groups: control (GC), control with WBV (GCP), obese (GO) and obese with WBV (GOP). At the 70 days old, the training on WBV was started, performed 3 times a week, during 8 consecutive weeks. At the 130 days old, the animals were euthanized and the soleus muscles were collected. RESULTS: Regarding the analysis of the neuromuscular junctions, the obese groups had lower mean size when compared to the control groups. On the other hand, the WBV presented higher averages when compared to the groups that did not perform the training. Regarding the oxidative stress, for the lipid peroxidation there was a significant difference between obese and non-obese animals, however, there was no difference between the animals WBV and those who did not. CONCLUSION: WBV promotes beneficial changes such as increased measurements of the structures of the neuromuscular junctions, but is not able to promote changes in the concentration of the cholinesterase enzyme in the synaptic cleft.

Docetaxel-loaded solid lipid nanoparticles prevent tumor growth and lung metastasis of 4T1 murine mammary carcinoma cells.

BACKGROUND: Metastasis causes the most breast cancer-related deaths in women. Here, we investigated the antitumor effect of solid lipid nanoparticles (SLN-DTX) when used in the treatment of metastatic breast tumors using 4T1-bearing BALB/c mice. RESULTS: Solid lipid nanoparticles (SLNs) were produced using the high-energy method. Compritol 888 ATO was selected as the lipid matrix, and Pluronic F127 and Span 80 as the surfactants to stabilize nanoparticle dispersion. The particles had high stability for at least 120 days. The SLNs' dispersion size was 128 nm, their polydispersity index (PDI) was 0.2, and they showed a negative zeta potential. SLNs had high docetaxel (DTX) entrapment efficiency (86%), 2% of drug loading and showed a controlled drug-release profile. The half-maximal inhibitory concentration (IC50) of SLN-DTX against 4T1 cells was more than 100 times lower than that of free DTX after 24 h treatment. In the cellular uptake test, SLN-DTX was taken into the cells significantly more than free DTX. The accumulation in the G2-M phase was significantly higher in cells treated with SLN-DTX (73.7%) than in cells treated with free DTX (23.0%), which induced subsequent apoptosis. TEM analysis revealed that SLN-DTX internalization is mediated by endocytosis, and fluorescence microscopy showed DTX induced microtubule damage. In vivo studies showed that SLN-DTX compared to free docetaxel exhibited higher antitumor efficacy by reducing tumor volume (p < 0.0001) and also prevented spontaneous lung metastasis in 4T1 tumor-bearing mice. Histological studies of lungs confirmed that treatment with SLN-DTX was able to prevent tumor. IL-6 serum levels, ki-67 and BCL-2 expression were analyzed and showed a remarkably strong reduction when used in a combined treatment. CONCLUSIONS: These results indicate that DTX-loaded SLNs may be a promising carrier to treat breast cancer and in metastasis prevention.

Prevalence and Treatment of Tobacco Use Among Patients Being Treated for Mental Disorders / Prevalencia y Tratamiento del Uso de Tabaco Entre Pacientes de Servicios de Salud Mental / Prevalência e Tratamento do Uso de Tabaco Entre Pacientes Tratados em Serviços de Saúde Mental

Abstract: Background: People with mental disorders use tobacco as a strategy for coping with various symptoms and the side effects of prescribed medications. In addition to being harmful to their health, tobacco use also interferes with their treatment process. Objective: To examine tobacco use among patients being treated for mental disorders in a public health system in a Brazilian the city. Methods: were interviewed 362 patients being treated by the specialized services for mental health. The participants included persons who met the diagnostic criteria for schizophrenia, schizotypal, and delusional disorders, mood (affective) disorders, or neurotic, stress-related, and somatoform disorders. Results: The median age of participants was 46.4 years, of which 73.5% were women and 42.5% were unmarried, 37.8% smokers. Among the smokers, 82% claimed they wanted to quit smoking, and 49% made daily visits to the health center. 79.6% of the participants had tried to quit smoking previously, and of these, 84.3% had tried to do so on their own. Conclusion: Tobacco use is an important factor to be considered in developing treatment plans for people with mental disorders. It is necessary to develop strategies to help people quit smoking and train health professionals to incorporate these strategies into the treatment process.

Resumen: Antecedentes: Personas con trastornos mentales utilizan el tabaco como estrategia de afrontamiento para diversos síntomas y efectos colaterales de los medicamentos utilizados. Además de los múltiples daños causados a la salud, el uso de tabaco perjudica el tratamiento de personas con trastornos mentales. Objetivo: Caracterizar el consumo de tabaco en la población con trastorno mental en tratamiento, en la ciudad de Juiz de Fora, Brasil. Métodos: Fueron entrevistados 362 pacientes en tratamiento, en los servicios especializados en salud mental, con diagnósticos de Esquizofrenia, Trastornos Esquizotípicos y Delirantes, Trastornos del Humor (afectivos) o Trastornos Neuróticos, Trastornos Relacionado con Estrés y Trastornos Somatomorfos. Resultados: La edad promedio de los participantes fue de 46,4 años; el 73,5% eran del sexo femenino, el 42,5% eran solteros y un 37,8% eran fumadores. El 82% afirmó que les gustaría dejar de fumar y el 49% frecuentaron el servicio diariamente. Aquellos que ya intentaron parar de fumar alguna vez totalizaron el 79,6% y, de los cuales el 84,3% lo hicieron por cuenta propia. Conclusión: El consumo de tabaco es un factor importante a ser considerado en la elaboración de procedimientos terapéuticos de la población con trastornos mentales. Es necesario desarrollar intervenciones para el cese del consumo de tabaco, que puedan ser aplicados en la cotidianidad de los servicios de forma integrada.

Resumo: Antecedentes: Pessoas com transtornos mentais utilizam o tabaco como estratégia de enfrentamento para diversos sintomas e efeitos colaterais dos medicamentos utilizados. Além dos diversos prejuízos à saúde, o uso de tabaco prejudica o tratamento de pessoas com transtornos mentais. Objetivo: caracterizar o consumo de tabaco na população portadora de transtorno mental em tratamento na cidade de Juiz de Fora, Minas Gerais. Métodos: Foram entrevistados 362 pacientes em tratamento nos serviços especializados em saúde mental, com diagnósticos para Esquizofrenia, Transtornos Esquizotípicos e Delirantes, Transtornos do Humor (afetivos), ou Transtornos Neuróticos, Transtornos Relacionados ao Stress e Transtornos Somatoformes. Resultados: A idade média dos participantes foi de 46,4 anos; 73,5% eram do sexo feminino e 42,5% solteiros e 37,8% eram fumantes. 82% alegaram que gostariam de parar de fumar e 49% frequentavam o serviço diariamente. Aqueles que já tentaram parar de fumar alguma vez totalizaram 79,6% e, desses, 84,3% o fizeram por conta própria. Conclusão: O consumo de tabaco é um fator importante a ser considerado na elaboração do plano terapêutico da população com transtornos mentais. É necessário desenvolver intervenções para a cessação do consumo de tabaco que possam ser aplicadas no cotidiano dos serviços de forma integrada.

Mídias sociais como fonte de conhecimento para o processo de parto normal / Los medios sociales como fuente de conocimientos para el proceso de parto normal / Social media as a source of knowledge for the process of normal delivery

RESUMO Objetivo: verificar o conhecimento adquirido pelas gestantes para o processo de parto normal através das mídias sociais e a influência sobre a experiência do parto. Metodologia: estudo qualitativo com 12 puérperas de um hospital filantrópico, na cidade de Recife-PE. Foram realizadas entrevistas individuais, entre dezembro de 2018 e fevereiro de 2019, e foi utilizada a metodologia de análise de conteúdo. Resultados: após análise, emergiram duas categorias: Uso da mídia social como suporte de informações durante a gestação, e Expectativa para o parto vaginal através do conhecimento adquirido versus a realidade da experiência do parto vaginal. Conclusão: em resposta ao déficit de educação em saúde, as mídias sociais ganharam espaço como principal fonte de informações e esclarecimento de dúvidas a respeito do parto. Os profissionais da saúde, conhecendo as fontes de informação utilizadas pelas gestantes, podem contribuir com as orientações e indicação de fontes seguras e com conteúdo de qualidade.

RESUMEN: Objetivo: verificar los conocimientos adquiridos por las embarazadas para el proceso de parto normal a través de los medios sociales y la influencia sobre la experiencia del parto. Metodología: estudio cualitativo realizado con 12 puérperas de un hospital filantrópico en la ciudad de Recife-PE. Se realizaron entrevistas individuales entre diciembre de 2018 y febrero de 2019 y se utilizó la metodología del análisis de contenido. Resultados: luego del análisis surgieron dos categorías: Uso de los medios sociales como soporte de información durante el embarazo, y Expectativa con respecto al parto vaginal a través del conocimiento adquirido versus la realidad de la experiencia del parto vaginal. Conclusión: en respuesta al déficit de educación en salud, los medios sociales ganaron espacio como fuente principal de información y aclaración de dudas con respecto al parto. Al conocer qué fuentes de información emplearon las embarazadas, los profesionales de la salud pueden contribuir con pautas orientadoras y con la indicación de fuentes seguras y que aporten contenido de calidad.

ABSTRACT Objective: To check the knowledge acquired by pregnant women through social media about the normal delivery process and the influence on the delivery experience. Method: A qualitative study with 12 puerperal women from a philanthropic hospital, in the city of Recife-PE. Individual interviews were conducted between December 2018 and February 2019, and the methodology of content analysis was used. Results: Two categories emerged after analysis: The use of social media as information sources during pregnancy, and Expectation towards vaginal delivery with the acquired knowledge versus the reality of the vaginal delivery experience. Conclusion: In response to the health education deficit, social media gained ground as the main source of information and clarification of pieces of doubt about childbirth. Health professionals, knowing the sources of information used by pregnant women, can contribute with the guidance and indication of safe sources with quality content.

Prognostic importance of the lymphovascular invasion in head and neck adenoid cystic carcinoma: A systematic review and meta-analysis.

The presence of lymphovascular invasion is considered a prognostic determinant for different human neoplasms and is frequently taken into account by surgeons and oncologists to determine patients' treatment. However, the exact frequency of this microscopic event and its prognostic impact for patients affected by adenoid cystic carcinoma (AdCC) remains unclear. Therefore, the aim of this study was to carry out a systematic review and meta-analysis to address the prevalence and the prognostic potential of lymphovascular invasion in head and neck AdCC. A literature search on PubMed, Scopus, ClinicalTrials.gov, Web of Science and ProQuest databases was undertaken in January 2019. The primary outcomes of interest were overall survival (OS) and disease-free survival (DFS). The relative frequency of lymphovascular invasion and its possible association with other clinicopathological parameters were addressed. A total of 22 studies and 2117 patients were included in this study. The frequency of lymphovascular invasion ranged from 5.2% to 72.5%. Lymphovascular invasion was associated with an increased likelihood of lymph node metastasis (OR = 2.58; 95% CI 1.61-4.12; p = 0.0001) and death (OR = 3.09; 95% CI 1.82-5.26; p = 0.0001), solid/higher-grade AdCC were more likely to present lymphovascular invasion (OR = 5.51; 95% CI 1.87-16-21; p = 0.002) and patients with this microscopic finding had a significantly lower OS (HR = 8.30; 95% CI 1.68-40.91; p = 0.009) and DFS (HR = 3.76; 95% CI 1.13-12.53; p = 0.03). In conclusion, lymphovascular invasion seems to be a significant predictor of poor prognosis for head and neck AdCC patients.

Novel magneto-responsive nanoplatforms based on MnFe2O4 nanoparticles layer-by-layer functionalized with chitosan and sodium alginate for magnetic controlled release of curcumin.

Remotely assisted drug delivery by means of magnetic biopolymeric nanoplatforms has been utilized as an important tool to improve the delivery/release of hydrophobic drugs and to address their low cargo capacity. In this work, MnFe2O4 magnetic nanoparticles (MNPs) were synthesized by thermal decomposition, coated with citrate and then functionalized with the layer-by-layer (LbL) assembly of polyelectrolyte multilayers, with chitosan as polycation and sodium alginate as polyanion. Simultaneous conductimetric and potentiometric titrations were employed to optimize the LbL deposition and to enhance the loading capacity of nanoplatforms for curcumin, a hydrophobic drug used in cancer treatment. ~200 nm sized biopolymer platforms with ~12 nm homogeneously embedded MNPs were obtained and characterized by means of XRD, HRTEM, DLS, TGA, FTIR, XPS and fluorescence spectroscopy techniques to access structural, morphological and surface properties, to probe biopolymer functionalization and to quantify drug-loading. Charge reversals (±30 mV) after each deposition confirmed polyelectrolyte adsorption and a stable LbL assembly. Magnetic interparticle interaction was reduced in the biopolymeric structure, hinting at an optimized performance in magnetic hyperthermia for magneto-assisted drug release applications. Curcumin was encapsulated, resulting in an enhanced payload (~100 µg/mg). Nanocytotoxicity assays showed that the biopolymer capping enhanced the biocompatibility of nanoplatforms, maintaining entrapped curcumin. Our results indicate the potential of synthesized nanoplatforms as an alternative way of remotely delivering/releasing curcumin for medical purposes, upon application of an alternating magnetic field, demonstrating improved efficiency and reduced toxicity.

Nutritional profile of hemodialysis patients concerning treatment time.

INTRODUCTION: The mortality of the population with chronic kidney disease (CKD) on hemodialysis (HD) is very high and the protein-energy malnutrition stands out as one of the most common consequences in relation to this condition. OBJECTIVE: To evaluate the association between time of hemodialysis and nutritional parameters of patients. METHODS: It is a cross-sectional study with secondary data, developed of the University Hospital of the Federal University of Juiz de Fora (HU/UFJF). This study was approved by the Research Ethics Committee (Nº 1.233.142), a total of 36 patients. The medical records and collected data were analyzed for anthropometric markers, biochemical and diet, considering two groups: HD time less than three and greater than or equal to three years. RESULTS: There was reduction of mass of somatic protein with increased duration of HD. In relation to food intake was observed that in patients with increased duration of dialysis, an increase in average consumption of protein / kg of weight, calories, phosphorus and potassium, with a significant difference from the mean protein intake / kg (p = 0.04) and phosphorus (p = 0.045). Increasing HD time has altered body composition of patients, indicating a decline in the nutritional status of these individuals. CONCLUSION: HD patients are a risk group for protein-energy malnutrition, where HD time interferes with the nutritional status and food profile of the patient. The group HD time greater than or equal to 3 years presented worsening nutritional status.

Nutritional profile of hemodialysis patients concerning treatment time / Análise do perfil nutricional de pacientes renais crônicos em hemodiálise em relação ao tempo de tratamento

Abstract Introduction: The mortality of the population with chronic kidney disease (CKD) on hemodialysis (HD) is very high and the protein-energy malnutrition stands out as one of the most common consequences in relation to this condition. Objective: To evaluate the association between time of hemodialysis and nutritional parameters of patients. Methods: It is a cross-sectional study with secondary data, developed of the University Hospital of the Federal University of Juiz de Fora (HU/UFJF). This study was approved by the Research Ethics Committee (Nº 1.233.142), a total of 36 patients. The medical records and collected data were analyzed for anthropometric markers, biochemical and diet, considering two groups: HD time less than three and greater than or equal to three years. Results: There was reduction of mass of somatic protein with increased duration of HD. In relation to food intake was observed that in patients with increased duration of dialysis, an increase in average consumption of protein / kg of weight, calories, phosphorus and potassium, with a significant difference from the mean protein intake / kg (p = 0.04) and phosphorus (p = 0.045). Increasing HD time has altered body composition of patients, indicating a decline in the nutritional status of these individuals. Conclusion: HD patients are a risk group for protein-energy malnutrition, where HD time interferes with the nutritional status and food profile of the patient. The group HD time greater than or equal to 3 years presented worsening nutritional status.

Resumo Introdução: Pacientes com doença renal crônica em hemodiálise (HD) apresentam risco elevado para mortalidade, sendo que a desnutrição protéico-energética se destaca como uma das causa mais comuns em relação a essa condição. Objetivo: Avaliar a associação entre o tempo de hemodiálise e parâmetros nutricionais dos pacientes. Métodos: É um estudo transversal com dados secundários, desenvolvido no Hospital Universitário Federal Universidade de Juiz de Fora (HU / UFJF). Este estudo foi aprovado pela pesquisa Comitê de Ética (nº 1.233.142), um Total de 36 pacientes. Os dados foram coletados por meio dos prontuários médicos, os quais foram analisados marcadores antropométricos, bioquímicos e dieta, considerando dois grupos: tempo HD menor do que três anos e tempo de HD maior ou igual atrês anos. Resultados: Houve redução de massa de proteína somática com aumento do tempo em HD. Em relação à avaliação alimentar, observou-se que em pacientes com maior tempo em diálise houve aumento no consumo médio de proteína/kg de peso, calorias, fósforo e Potássio, com diferença significativa da ingestão média de proteína/kg (p = 0,04) e fósforo (p = 0,045). O tempo em HD alterou a composição corporal dos pacientes, indicando um declínio doestado nutricional desses indivíduos. Conclusão: Pacientes com HD são um grupo de risco para desnutrição protéico-energética, onde o tempo em HD interfere no perfil antropométrico e alimentar do paciente.O grupo com tempo de HD superior ou igual a 3 anos apresentou piora do estado nutricional.