Fibroblasts Promote Resistance to KRAS Silencing in Colorectal Cancer Cells.

Colorectal cancer (CRC) responses to KRAS-targeted inhibition have been limited due to low response rates, the mechanisms of which remain unknown. Herein, we explored the cancer-associated fibroblasts (CAFs) secretome as a mediator of resistance to KRAS silencing. CRC cell lines HCT15, HCT116, and SW480 were cultured either in recommended media or in conditioned media from a normal colon fibroblast cell line (CCD-18Co) activated with rhTGF-ß1 to induce a CAF-like phenotype. The expression of membrane stem cell markers was analyzed by flow cytometry. Stem cell potential was evaluated by a sphere formation assay. RNAseq was performed in KRAS-silenced HCT116 colonospheres treated with either control media or conditioned media from CAFs. Our results demonstrated that KRAS-silencing up-regulated CD24 and down-regulated CD49f and CD104 in the three cell lines, leading to a reduction in sphere-forming efficiency. However, CAF-secreted factors restored stem cell marker expression and increased stemness. RNA sequencing showed that CAF-secreted factors up-regulated genes associated with pro-tumorigenic pathways in KRAS-silenced cells, including KRAS, TGFß, NOTCH, WNT, MYC, cell cycle progression and exit from quiescence, epithelial-mesenchymal transition, and immune regulation. Overall, our results suggest that resistance to KRAS-targeted inhibition might derive not only from cell-intrinsic causes but also from external elements, such as fibroblast-secreted factors.

KRAS silencing alters chromatin physical organization and transcriptional activity in colorectal cancer cells.

Clinical data revealed that KRAS mutant tumors, while initially sensitive to treatment, rapidly bypass KRAS dependence to acquire a drug-tolerant phenotype. However, the mechanisms underlying the transition from a drug-sensitive to a drug-tolerant state still elude us. Here, we show that global chromatin reorganization is a recurrent and specific feature of KRAS-dependent cells that tolerated KRAS silencing. We show that KRAS-dependent cells undergo G0/G1 cell cycle arrest after KRAS silencing, presenting a transcriptomic signature of quiescence. Proteomic analysis showed upregulated chromatin-associated proteins and transcription-associated biological processes. Accordingly, these cells shifted euchromatin/heterochromatin states, gained topologically associating domains, and altered the nanoscale physical organization of chromatin, more precisely by downregulating chromatin packing domains, a feature associated with the induction of quiescence. In addition, they also accumulated transcriptional alterations over time leading to a diversification of biological processes, linking chromatin alterations to transcriptional performance. Overall, our observations pinpoint a novel molecular mechanism of tolerance to KRAS oncogenic loss driven not by specific gene alterations but by global reorganization of genomic information, in which cells transition chromatin domain structure towards a more quiescent state and gain transcriptional reprogramming capacity.

Quality of life of older adults in Family Health Strategy: a cross-sectional study

ABSTRACT BACKGROUND: With the increase in the older adult population, it is essential to identify the living and health conditions that can impact the quality of life of these individuals. OBJECTIVES: To identify the domains and factors associated with the quality of life of older adults under the Family Health Strategy program. DESIGN AND SETTING: This was a cross-sectional analytical study was conducted in the municipality of Palmas, Tocantins, Brazil. METHODS: We assessed 449 older adults enrolled in the Family Health Strategy program. Data were collected between April and July, 2018. World Health Organization Quality of Life Assessment (WHOQOL-OLD) was used to assess the quality of life (QoL) and multiple linear regression was used to estimate the factors associated with QoL. RESULTS: The QoL domain with the highest score was death and dying (mean = 70.4), and the lowest score was for sensory functions (mean = 61.0 points). The factors associated with QoL were single marital status (β = -4.55; P = 0.014), level of independence for daily living activities (β = 4.92; P < 0.001), self-assessment of regular health (β = 5.35; P < 0.001), and poor health (β = -8.67; P < 0.001). CONCLUSION: The death and dying domain of QoL presented the highest score. Marital status, impairment in daily activities, and health self-assessment were associated with QoL.

Baixa ingestão de proteínas está associada à mortalidade em idosos brasileiros / Low protein intake is associated with mortality in Brazilian older adults

Resumo Objetivo Estimar a associação entre baixa ingestão de proteínas e mortalidade em pessoas idosas. Métodos Estudo prospectivo realizado com 621 pessoas idosas da cidade de Viçosa (Minas Gerais), município de médio porte no Brasil. A ingestão de proteínas foi avaliada na linha de base (2009) pelo recordatório de ingestão habitual e foi utilizada a classificação de ingestão de proteínas proposta pela Sociedade Brasileira de Nutrição Parenteral e Enteral. Os dados de mortalidade foram coletados no período de acompanhamento (2009 a 2018) através do Sistema de Informações sobre Mortalidade. Modelos de regressão de Cox foram aplicados para estimar a associação independente entre ingestão total de proteínas e mortalidade, e estimativas de hazard ratio e seus respectivos intervalos de confiança de 95% foram calculados. Resultados Entre os 621 participantes do estudo, 52,7% eram do sexo feminino e a prevalência de baixa ingestão proteica foi de 60,9%. Ao longo dos 9 anos de acompanhamento ocorreram 154 óbitos (23,3%). No modelo ajustado, pessoas idosas com baixa ingestão de proteínas apresentaram maior risco de morte [HR: 1,72; IC 95%: 1,05 - 2.82]. Conclusão A baixa ingestão de proteínas pode aumentar o risco de morte em pessoas idosas.

Abstract Objective To estimate the association between low protein intake and mortality in older adults. Methods Prospective study carried out with 621 older adults in a medium-sized city (Viçosa, Minas Gerais) in Brazil. Protein intake was assessed at baseline (2009) by the usual intake recall and the protein intake classification was used as proposed by the Brazilian Society of Parenteral and Enteral Nutrition. Mortality data were collected in the follow-up period (2009 to 2018) from the Mortality Information System. Cox regression models were applied to estimate the independent association between total protein intake and mortality, and Hazard Ratio estimates and their respective 95% confidence intervals were calculated. Results Among the 621 participants in the study, 52.7% were female, and the prevalence of low protein intake was 60.9%. Over the 9 years of follow-up, there were 154 deaths (23,3%). In the adjust models, older adults with low protein intake showed increased risk of death [HR: 1.72; 95% CI: 1.05 - 2.82]. Conclusion Low protein intake may increase the risk of death in the older adults.

Nutritional indicators of food and nutrition security of families: 2008/2009 Household Budget Survey / Indicadores nutricionais da segurança alimentar e nutricional de famílias: Pesquisa de Orçamentos Familiares 2008/2009

ABSTRACT Objective To evaluate the food and nutrition insecurity of Brazilian families, according to indicators of food consumption and nutritional status, by location and situation of the households investigated using the 2008/2009 Household Budget Survey. Methods Inadequate consumption of macronutrients and nutritional dystrophies (underweight, short stature or overweight) in at least one family member were used as indicators, according to location and geographical situation of households. The prevalence of food and nutritional insecurity and their confidence intervals were calculated. Results Food consumption was assessed in a total of 13,569 households; a total of 67.55%, 43.96% and 6.85% revealed inadequacy for lipids, carbohydrates and proteins, respectively. Among the 53,640 households assessed by nutritional status, 15.10%, 35.15% and 45.50% had, at least one resident with low weight, short stature or overweight respectively. The Northeastern Region showed statistically higher prevalence than other Brazilian macro-regions for inadequate lipids (24.88%) and carbohydrates (15.32%), as well as for the presence of underweight (6.15%), overweight (14.77%) and short stature (15.17%), in at least one of the residents of the household. Conclusion Assessing the nutritional aspect of food insecurity allows for a better understanding of the dimensions of this situation by considering the effects of access and availability of food, as well as biological use and stability, based on indicators of inadequate food consumption and the presence of nutritional dystrophy. The results found in this study enhance the need to include nutritional indicators in the assessment of food security.

RESUMO Objetivo Avaliar a insegurança alimentar e nutricional de famílias brasileiras segundo indicadores de consumo alimentar e estado nutricional, por localização e situação dos domicílios investigados pela Pesquisa de Orçamento Familiar 2008/2009. Métodos Foram utilizados, como indicadores de insegurança alimentar e nutricional, o consumo inadequado de macronutrientes e distrofias nutricionais (baixo peso, baixa estatura ou excesso de peso) em pelo menos um membro da família, conforme localização e situação geográfica dos domicílios. Calculou-se a prevalência de insegurança alimentar e nutricional e seus intervalos de confiança. Resultados Foram avaliados 13.569 domicílios pelo consumo alimentar, sendo que 67,55%, 43,96% e 6,85% apresentaram inadequação para lipídios, carboidratos e proteínas, respectivamente. Entre os 53.640 domicílios avaliados pelo estado nutricional, 15,10%, 35,15% e 45,50% apresentam, respectivamente, pelo menos um morador com baixo peso, baixa estatura ou excesso de peso. O Nordeste apresentou prevalências estatisticamente maiores do que as demais macrorregiões para as inadequações de lipídios (24,88%) e de carboidratos (15,32%), bem como para presença de baixo peso (6,15%), excesso de peso (14,77%) e baixa estatura (15,17%), em pelo menos um dos moradores do domicílio. Conclusão Avaliar a vertente nutricional da insegurança alimentar permite maior compreensão das dimensões dessa situação por considerar os reflexos do acesso e disponibilidade de alimentos, bem como a utilização biológica e estabilidade, a partir dos indicadores de consumo alimentar inadequado e presença de distrofia nutricional. Os resultados encontrados reforçam a necessidade de incluir indicadores nutricionais na avaliação da segurança alimentar.

Mutant KRAS modulates colorectal cancer cells invasive response to fibroblast-secreted factors through the HGF/C-MET axis.

Genetic alterations influence the malignant potential of cancer cells, and so does the tumor microenvironment. Herein, we combined the study of KRAS oncogenic effects in colorectal cancer cells with the influence of fibroblast-derived factors. Results revealed that mutant KRAS regulates cell fate through both autonomous and nonautonomous signaling mechanisms. Specifically, processes such as proliferation and cell-cell aggregation were autonomously controlled by mutant KRAS independently of the stimulation with fibroblasts conditioned media. However, cancer cell invasion revealed to be a KRAS-dependent nonautonomous effect, resulting from the cooperation between fibroblast-derived HGF and mutant KRAS regulation of C-MET expression. C-MET downregulation upon KRAS silencing rendered cells less responsive to HGF and thus less invasive. Yet, in one cell line, KRAS inhibition triggered invasion upon stimulation with fibroblasts conditioned media. Inhibition of PIK3CA oncogene did not promote invasion, thus showing a KRAS-specific effect. Moreover, the invasive capacity also depended on the HGF-C-MET axis. Overall, our study awards oncogenic KRAS an important role in modulating the response to fibroblast-secreted factors either by promoting or impairing invasion, and depicts the HGF-C-MET axis as a putative therapeutic target to impair the invasive properties of mutant KRAS cancer cells.

Availability of food stores around Brazilian schools / Disponibilidade de estabelecimentos de venda de alimentos no entorno de escolas brasileiras

Abstract The aim of this study was to analyze the availability of food stores in the territory of schools. Ecological study conducted in Viçosa, Minas Gerais, Brazil, with all schools (N=42) and food stores (N=656). Data were collected through the objective evaluation of the environment, and the stores were categorized into healthy, unhealthy, mixed and supermarkets. Bivariate Ripley´s K function assessed the existence of clustering of categories of stores in the territory of schools. All the schools had at least one food store in their territory. Unhealthy stores were the most common and closest to the schools. There were more stores around private schools, offering high school education, located in the central region and in the highest per capita income tercile. The bivariate Ripley´s K function showed evidence of clustering of stores at all analyzed distances (400 to 1.5 km) with up to 3 times more establishments than would be expected if they were randomly distributed. Therefore, schoolchildren were likely exposed to unhealthy food environments, regardless of neighborhood income and location, which may contribute to inadequate food choices.

Resumo O objetivo deste estudo foi analisar a disponibilidade de estabelecimentos de venda de alimentos no território das escolas. Estudo ecológico conduzido em Viçosa, Minas Gerais, Brasil, com todas as escolas (N=42) e estabelecimentos de venda de alimentos (N=656). Dados foram coletados através de avaliação objetiva do ambiente, e estabelecimentos foram categorizados em saudáveis, não saudáveis, mistos e supermercados. Função K de Ripley bivariada avaliou a existência de agrupamento das categorias de estabelecimentos no território das escolas. Todas as escolas tinham no mínimo um estabelecimento de venda de alimentos em seu território. Estabelecimentos não saudáveis foram mais frequentes e próximos das escolas. Havia mais estabelecimentos no entorno de escolas particulares com ensino médio, localizadas na região central e de maior tercil de renda per capita. A função K de Ripley bivariada evidenciou o agrupamento de estabelecimentos em todas as distâncias analisadas (400 a 1,5 km), com três vezes mais estabelecimentos do que o esperado em uma distribuição aleatória. Portanto, escolares provavelmente estavam expostos a um ambiente alimentar não saudável, independentemente da renda da vizinhança e da localização das escolas, o que pode contribuir para escolhas alimentares inadequadas.

Maternal and child characteristics correlated with frequency of consuming ultra-processed food by children aged 6 to 24 months old / Características maternas e infantis correlacionadas à frequência do consumo de alimentos ultraprocessados por crianças de 6 a 24 meses

Abstract Objectives: to verify the correlation between the consumption of ultra-processed food among mothers and children under two years of age and the main characteristics related to this consumption. Methods: cross-sectional study conducted in public health services. Three 24-hour recalls were applied to assess food intake. The ultra-processed food was grouped into: sugary drinks; meat; sauces and creams; dairy products; snacks; pastas; and mucilage. Themother's body mass index and waist/hip ratio, and the child's weight/height, height/age, weight/age and body mass index/age were calculated. The children's ultra-process frequency as correlated with: anthropometric dyadic variables; ultra-process frequency on breastfeeding. The children's average ultra-process intake was compared to pacifier, bottle, breastfeeding and socioeconomic status. Linear regression models were conducted. Results: 172 pairs were evaluated. Similarity was found in the mothers and children's consumption of ultra-processed products. The higher frequency of ultra-processed products was correlated with older child and the higher body mass/age index and weight/age index. Of the 39 ultra-processed food present in the mothers' diet, 22 were correlated to child's Conclusion: the consumption of ultra-processed food by children is similar to their mothers and correlates with higher z-score values of weight/age and body mass/age index.

Resumo Objetivos: verificar a correlação do consumo de alimentos ultraprocessados de mães e filhos menores de dois anos de idade e as principais características relacionadas a este consumo. Métodos: estudo transversal conduzido nos serviços públicos de saúde. Aplicaram-se três recordatórios de 24 horas para avaliar o consumo alimentar. Os alimentos ultraprocessados foram agrupados em: bebidas açucaradas; carnes; molhos e cremes; lácteos; lanches; massas; e mucilagens. Calculou-se o Índice de Massa Corporal e a relação cintura/quadril da mãe, índice peso/estatura, estatura/idade, peso/idade e índice de massa corporal/idade da criança. Correlacionou-se a frequência de ultraprocessados na alimentação das crianças com: variáveis antropométricas da díade; frequência de ultraprocessados na alimentação materna. Comparou-se a média do consumo de ultraprocessados das crianças com uso de chupeta, mamadeira, aleitamento materno e condição socioeconômica. Modelos de regressão linear foram conduzidos. Resultados: avaliou-se 172 pares. Foi verificada semelhança no consumo de ultraprocessados de mães e filhos. A maior frequência de ultraprocessados correlacionou-se a maior idade da criança e ao maior índice de massa corporal/idade e índice peso/idade. Dos 39 alimentos ultraprocessados presentes na alimentação das mães, 22 correlacionaram com os da criança. Conclusão: o consumo de ultraprocessados pelas crianças se assemelha ao das mães e correlacionase com maiores valores dos índices peso/idade e índice de massa corporal/idade.

STRONGkids nutrition screening tool in pediatrics: An analysis of cutoff points in Brazil.

BACKGROUND: Studies have indicated the Screening Tool for Risk on Nutritional Status and Growth (STRONGkids) as a method of pediatric nutrition screening with good validity in the hospital setting. However, we need to analyze whether the cutoff values originally proposed are suitable for use in Brazil. METHODS: A cross-sectional study was performed in patients admitted to the pediatric ward of a public hospital. STRONGkids was used to assess nutrition risk (low risk, 0 points; moderate risk, 1-3 points; and high risk, 4-5 points). The indexes weight/height or body mass index/age were used to indicate acute malnutrition, and length or height/age was used to indicate chronic malnutrition. Receiver operating characteristic curves were constructed and the areas under the curve were calculated, with respective 95% confidence intervals, to assess the ability of STRONGkids to predict malnutrition and longer hospital stay. RESULTS: The study included 599 patients, with a median age of 2.6 years. The frequency of nutrition risk (medium or high) was 83.6%. In comparison with anthropometric indexes, STRONGkids was the only scoring system with the discriminatory capacity to identify patients with longer hospital stays. The comparative analysis of the means of hospital stay according to STRONGkids showed that patients with a score equal to 3 behaved similarly to those classified as high nutrition risk (4-5 points). CONCLUSIONS: Considering the best cutoff point to predict prolonged hospitalization, STRONGkids used in Brazil should consider patients with 3 points as having high nutrition risk, as well those scoring 4 and 5.

Baixa reserva muscular em pessoas idosas e fatores associados / Low muscle reserve in older adults and associated factors

Resumo Objetivo Estimar a prevalência de baixa reserva muscular e identificar os fatores associados em pessoas idosas. Método Estudo transversal realizado com 784 idosos (60 anos ou mais) não institucionalizados, residentes em Viçosa, Minas Gerais no ano de 2009. As características de interesse foram sociodemográficas, hábitos de vida, condições de saúde e antropométricas. A baixa reserva muscular (BRM) foi definida como o perímetro da perna (PP) < 33 cm para mulheres e < 34 cm para homens. Realizou-se análise descritiva, análise bivariada e múltipla, por meio da regressão de Poisson com variância robusta, para identificar os fatores independentemente associados ao desfecho de interesse. Resultados Mais da metade da amostra era composta por mulheres (52,9%), maior frequência de idosos mais jovens (60 - 69 anos :49,5%), com no máximo quatro anos de estudo (79,9%). A prevalência de baixa reserva muscular foi de 21,7% (IC 95% 18,9%-24,7%) e os fatores independentemente associados foram a faixa etária de 70 a 79 anos (RP:1,31; IC95%: 0,96-1,795), 80 anos ou mais (RP:1,64; IC95%:1,12-2,70), histórico de internação hospitalar (RP: 1,46; IC95%: 1,02-2,09) e baixo peso (RP: 5,45; IC95%:3,77-7,88). Conclusões A prevalência da BRM na amostra é expressiva, se relaciona com a idade mais avançada, hospitalização e com o baixo peso. O monitoramento do PP mostra-se importante para o rastreamento de alterações relacionadas à baixa reserva muscular na pessoa idosa e os fatores associados devem ser considerados nas avaliações antropométricas destinadas a esta população.

Abstract Objective To estimate the prevalence of low muscle reserve and identify associated factors in older people. Method Cross-sectional study carried out with 784 non-institutionalized older people (60 years or older), living in Viçosa, Minas Gerais, in 2009. The characteristics of interest were sociodemographic, life habits, health and anthropometric conditions. Low muscle reserve (LMR) was defined as leg circumference (LC) < 33 cm for women and < 34 cm for men. Descriptive analysis, bivariate and multiple analysis were performed, using Poisson regression with robust variance, to identify the factors independently associated with the outcome of interest. Results More than half of the sample consisted of women (52.9%), more frequently younger seniors (60 - 69 years old :49.5%), with a maximum of four years of study (79.9%). The prevalence of low muscle reserve was 21.7% (95%CI 18.9%-24.7%) and the independently associated factors were the age group from 70 to 79 years (PR:1.31; 95%CI: 0.96-1.795), 80 years or older (PR:1.64; 95%CI:1.12-2.70), history of hospitalization (PR: 1.46; 95%CI: 1.02-2.09) and low weight (PR: 5.45; 95%CI: 3.77-7.88). Conclusions The prevalence of LMR in the sample is expressive, it is related to older age, hospitalization and low weight. LC monitoring is important for tracking changes related to low muscle reserve in older people and associated factors should be considered in anthropometric assessments for this population.

Repercussões da infodemia associada ao COVID-19 na saúde mental do idoso no Brasil / Repercusiones de la infodemia asociada al COVID-19 en la salud mental de los ancianos en Brasil / Repercussions of infodemia associated with COVID-19 on the mental health of the elderly in Brazil

O fenômeno denominado infodemia refere-se ao aumento do volume informacional sobre um tema em específico, que se multiplica rapidamente em um curto período de tempo, e tem-se destacado frente ao contexto da crise sanitária desencadeada pela pandemia de COVID-19. O excesso de informações pode suscitar sentimentos de medo, ansiedade, estresse e outras condições de sofrimento mental. O estudo tem como objetivo descrever o perfil de exposição a informações sobre COVID-19 e suas repercussões na saúde mental de idosos brasileiros. Trata-se de um estudo transversal realizado com 1924 idosos brasileiros. Coletaram-se dados por meio de web-based survey enviada aos idosos por redes sociais e e-mail, no período de julho a outubro de 2020. Os resultados da análise descritiva dos dados demonstram que a maioria dos idosos apresentou idade entre 60 e 69 anos (69,02por cento), é do sexo feminino (71,26por cento), casados (53,79 por cento) e de cor branca (75,57por cento). Cerca de 21,67por cento (n = 417) concluíram a graduação, 19,75por cento (380) concluíram especialização e 16,63por cento (320) concluíram mestrado ou doutorado. Foram reportados como fontes frequentes de exposição às notícias ou informações sobre a COVID-19, a televisão 862 (44,80por cento) e as redes sociais 651 (33,84por cento). Os participantes assinalaram que a televisão (46,47por cento; n = 872), as redes sociais (30,81por cento; n = 575) e o rádio (14,48por cento; 251) os afetavam psicológica e/ou fisicamente. Receber notícias falsas sobre a COVID-19 pela televisão (n = 482; 19,8por cento) e pelas redes sociais (n = 415; 21,5por cento) repercutiu, principalmente, estresse e medo. As informações disseminadas contribuem para conscientização, mas, também, afetam física e/ou psicologicamente muitos idosos, principalmente gerando medo e estresse(AU)

El fenómeno denominado infodemia hace referencia al aumento del volumen de información sobre un tema específico, que se multiplica rápidamente en un corto período, y ha destacado en el contexto de la crisis sanitaria desencadenada por la pandemia de la COVID-19. Demasiada información puede desencadenar sentimientos de miedo, ansiedad, estrés y otras condiciones de angustia mental. El estudio tiene como objetivo describir el perfil de exposición a la información sobre la COVID-19 y sus repercusiones en la salud mental de los ancianos brasileños. Se trata de un estudio transversal realizado con 1924 ancianos brasileños. Los datos fueron recolectados a través de una encuesta web enviada a los ancianos a través de redes sociales y correo electrónico, de julio a octubre de 2020. Los resultados del análisis descriptivo de los datos muestran que la mayoría de los ancianos tenían entre 60 y 69 años (69,02 por ciento), mujer (71,26 por ciento), casada (53,79 por ciento) y blanca (75,57 por ciento). El 21,67 por ciento (n = 417) concluyó su graduación, el 19,75 por ciento (380) concluyó especialización y el 16,63 por ciento (320) concluyó maestría o doctorado. La televisión 862 (44,80 por ciento) y las redes sociales 651 (33,84 por ciento) se reportaron como fuentes frecuentes de exposición a noticias o información sobre el COVID-19. Los participantes indicaron que la televisión (46,47 por ciento; n = 872), las redes sociales (30,81 por ciento; n = 575) y la radio (14,48 por ciento; 251) les afectaban psicológica y/o físicamente. Recibir noticias falsas sobre el COVID-19 en la televisión (n = 482; 19,8 por ciento) y en las redes sociales (n = 415; 21,5 por ciento) resultó principalmente en estrés y miedo. La información difundida contribuye a la sensibilización, pero también afecta física y/o psicológicamente a muchas personas mayores, generando principalmente miedo y estrés(AU)

The phenomenon called infodemia refers to the increase in the volume of information on a specific topic, which multiplies rapidly in a short period of time, and has stood out in the context of the health crisis triggered by the COVID-19 pandemic. Too much information can trigger feelings of fear, anxiety, stress, and other conditions of mental distress. The study aims to describe the profile of exposure to information about COVID-19 and its repercussions on the mental health of elderly Brazilians. This is a cross-sectional study carried out with 1924 elderly Brazilians. Data were collected through a web-based survey sent to the elderly via social networks and email, from July to October 2020. The results of the descriptive analysis of the data show that most of the elderly were aged between 60 and 69 years (69.02percent), female (71.26percent), married (53.79percent) and white (75.57percent). About 21.67percent (n = 417) concluded their graduation, 19.75percent (380) concluded their specialization and 16.63percent (320) concluded their master's or doctoral degrees. Television 862 (44.80percent) and social networks 651 (33.84percent) were reported as frequent sources of exposure to news or information about COVID-19. Participants indicated that television (46.47percent; n = 872), social networks (30.81percent; n = 575) and radio (14.48percent; 251) affected them psychologically and/or physically. Receiving fake news about COVID-19 on television (n = 482; 19.8percent) and on social media (n = 415; 21.5percent) mainly resulted in stress and fear. The disseminated information contributes to awareness, but also affects physically and/or psychologically many elderly people, mainly generating fear and stress(AU)

Maternal overweight and its relation with child's anthropometric indices / Excesso de peso materno e sua relação com os índices antropométricos infantis

Abstract Objectives: to investigate the relation between maternal overweight and child's anthropometric indices, identifying the interaction with the child's age. Methods: a cross-sectional study with mothers and their children under 2 years old. The mothers' body mass index (BMI), waist-to-hip ratio and waist-to-height ratio was calculated. In children, we calculated height/age (H/A), body mass index/age (BMI/A), weight/height (W/H) and weight/age (W/A) indices. The means of the anthropometric indices of children with excess weight and maternal cardiometabolic risk were compared. Mothers and children's anthropometric indices were correlated. Linear regression models were proposed. We investigated the child's age interaction with anthropometric variables of the dyad. Results: the means of BMI/A and W/H were higher in children of overweight mothers and the means of BMI/A, W/H and W/A were higher when mothers had increased risk for cardiometabolic diseases. There was an association of maternal weight and height with the W/A index; maternal BMI with W/H; maternal height with H/A; maternal weight, BMI and waist circumference with BMI/A. The children's age did not interact with the assessed parameters. Conclusion: children under 2 years of age, whose mothers are overweight, tend to show changes in weight, regardless of age.

Resumo Objetivos: investigar a relação do excesso de peso materno com índices antropométricosinfantis, identificando a interação da idade da criança. Métodos: estudo transversal com mães e seus filhos menores de 2 anos. Calculou-se o índice de massa corporal (IMC), relação cintura quadril e relação cintura estaturadas mães. Nas crianças, calculou-se os índices estatura/idade (E/I), índice de massa corporal/idade (IMC/I), peso/estatura (P/E) e peso/idade (P/I). Comparou-se as médias dos índices antropométricos das crianças com excesso de peso e risco cardiometabólico materno. Correlacionou-se índices antropométricos infantis e maternos. Modelos de regressão linear foram propostos. Foi investigada interação da idade da criança com variáveis antropométricas da díade. Resultados: as médias do IMC/I e P/E foram maiores em filhos de mães com excesso de peso e as médias do IMC/I, P/E e P/I foram maiores quando mães apresentaram risco aumentado para doenças cardiometabólicas. Verificou-se associação do peso e estatura materna com o índice P/I; do IMC materno com P/E; da estatura materna com E/I; do peso, IMC e perímetro da cintura materna com IMC/I. A idade das crianças não interagiu com os parâmetros avaliados. Conclusão: crianças menores de 2 anos, cujas mães têm excesso de peso, tendem a apresentar alteração no peso, independente da idade.

Qualidade da alimentação de idosos longevos e doenças crônicas não transmissíveis / Food quality of long elderly and non-communicable chronic diseases

Avaliou-se a qualidade da alimentação de idosos longevos e sua relação com doenças crônicas não transmissíveis. Foi um estudo transversal, de base populacional, realizado em Viçosa, Minas Gerais, Brasil, o qual integra um projeto maior intitulado "Condições de saúde, nutrição e uso de medicamentos por idosos do município de Viçosa (MG): um inquérito de base populacional". As entrevistas com os idosos foram realizadas por meio de questionário semiestruturado, com a maioria das questões fechadas e pré-codificadas. Os dados do consumo alimentar foram obtidos por recordatório de ingestão habitual e a qualidade da dieta avaliada por meio do Índice de Alimentação Saudável Revisado (IAS-R), validado para a população brasileira. A amostra foi composta por 94 idosos longevos, a maioria do sexo feminino. Os mesmos apresentaram alta ingestão de sódio, baixa ingestão de cereais integrais e IAS-R = 62,22. Idosos diabéticos apresentaram maior ingestão de frutas totais, baixa ingestão de Gord_AA (açúcares, gorduras sólidas e álcool) e IAS-R total maior em comparação aos não diabéticos. As presenças de dislipidemia e hipertensão não alteraram o consumo de nenhum dos componentes. Os resultados indicaram a necessidade de adequação na ingestão alimentar. Assim, intervenções e orientações nutricionais específicas destinadas à promoção da saúde devem ser incentivadas.

The quality of the food of long-lived elderly and its relationship with non-communicable chronic diseases was evaluated. This a cross-sectional study with a population basis that was conducted in Viçosa, Minas Gerais, Brazil, which is part of a larger project entitled "Health, nutrition and drug use by older people in Viçosa (MG): a population-based survey". The interviews with the elderly was conducted through a semi-structured questionnaire, with most questions closed and pre-coded. Food intake data were obtained from the usual intake recall and the quality of the diet was assessed using the Revised Healthy Eating Index (HEI-R), validated for the Brazilian population. The sample consisted of 94 long-lived elderly, most of them female. They presented high sodium intake, low whole grains intake and HEI-R = 62.22. Diabetic older adults had higher total fruit intake, lower intake of Gord_AA (sugars, solid fats, and alcohol) and higher total HEI-R compared to non-diabetics. The presences of dyslipidemia and hypertension did not alter the consumption of any of the components. The results indicated the need for adequacy in food intake. Thus, specific nutritional interventions and guidelines for health promotion should be encouraged.

Usefulness of the StrongKids Screening Tool in Detecting Anemia and Inflammation in Hospitalized Pediatric Patients.

Objective: To assess whether the nutritional risk classified by StrongKids is associated with anemia and inflammation (total leukocytes and C-reactive protein (CRP)), as well as to compare the ability of StrongKids with anthropometry in identifying these changes in hospitalized pediatric patients.Methods: Cross-sectional study with patients admitted to the pediatric ward of a public hospital in Brazil, from 2014 to 2018. The experimental protocol included: nutritional risk screening by StrongKids; weight and height measurements; and biochemical tests (complete blood count and C-reactive protein - CRP). Sensitivity, specificity, positive predictive value and negative predictive value were calculated to assess the ability of StrongKids and anthropometry to identify patients with the biochemical changes.Results: The study included 482 patients (54.2% male), with a median age of 2.7 years. The frequency of nutritional risk (medium or high) was 85.9% and the prevalence of malnutrition (acute and/or chronic) was 20.2%. Overall, of the patients evaluated, 40.2% had anemia, 28.2% leukocytosis, and 78.0% high CRP. Children and adolescents classified as at nutritional risk (moderate/high) had lower levels of hemoglobin and higher levels of CRP and total leukocytes, as well as a higher frequency of leukocytosis, high CRP and the three alterations combined when compared with individuals at low risk. No association was found between anthropometric variables and biochemical alterations. The sensitivity of nutritional screening was high to detect all biochemical alterations and was superior to the anthropometric assessment.Conclusion: StrongKids was associated with alterations in biochemical parameters with a better performance than anthropometry.

Shaved Cartilage Gel Versus Diced Cartilage on Final Dorsal Camouflage: Prospective Study of 200 Patients.

Importance: Diced cartilage (DC) is a reported technique that has been used for dorsal camouflage after reduction rhinoplasty. Nevertheless, there are certain issues regarding its use on nasal dorsum, especially its variable resorption rate and risk of graft distortion or migration, especially in thin-skinned patients. Recently, regenerative medicine protocols have been used to overcome drawbacks of methods based on DC. Thus, cartilage embedded in platelet-rich fibrin (PRF) has been described as a promising and reliable alternative to existing procedures. Objective: To compare long-term aesthetic outcomes of two different techniques for dorsal camouflage: DC versus shaved cartilage plus platelet-rich fibrin (SC+PRF)-shaved cartilage gel. Design, Setting, and Participants: This is a prospective, interventional, and longitudinal study at an academic tertiary medical center. Participants were 200 consecutive patients undergoing primary reduction rhinoplasty by spare roof technique (SRT) or component dorsal reduction (CDR). Materials and Methods: The inclusion criteria were primary rhinoplasty, in Caucasian patients with dorsal hump, and camouflage of the dorsum by DC or SC+PRF. Exclusion criteria were ≤18 years of age, revision rhinoplasty and reconstructive rhinoplasty for neoplasic or severe traumatic nasal deformities. The "Utrecht Questionnaire for outcome assessment in aesthetic rhinoplasty" was used. Patients answered it before and after surgery (3 and 12 months after). Results: The study population included 200 patients divided into two groups considering the type of dorsal camouflage: DC (n = 132) and shaved cartilage gel (n = 68). The mean age at the time of surgery was 35.44 years (standard deviation ±9.78) and the study population included 130 females (65.0%) and 70 males (35.0%). Regarding aesthetic outcomes, analyses of postoperative means showed a significant improvement, in both groups, over time. However, self-assessment, based on the visual analogue scale (VAS), at 12 months postsurgery, was higher for patients with SC+PRF than with DC (p = 0.004). Twelve months after surgery, patients with thin skin had better aesthetic outcome with SC+PRF than with DC (p = 0.001). For both reduction rhinoplasty techniques, aesthetic outcomes, based on the VAS at 12 months after surgery, were significantly better for patients with SC+PRF (SRT: p = 0.016; CDR: p = 0.004). For both rhinoplasty approaches, either open or closed, aesthetic outcomes, based on the VAS at 12 months after surgery, were significantly better for patients with SC+PRF (closed approach: p = 0.046; open approach: p = 0.017). Conclusions: SC+PRF provides better long-term aesthetic outcomes, not only for thin-skinned patients, but also for patients who had undergone rhinoplasty by a structured or preservation technique, or by an open or closed approach, for dorsal hump reduction.

Coffee and Tea Group Contribute the Most to the Dietary Total Antioxidant Capacity of Older Adults: A Population Study in a Medium-Sized Brazilian City.

OBJECTIVE: The dietary total antioxidant capacity (TAC) has been proposed as a suitable tool to estimate the dietary antioxidant intake. However, the main foods/groups that contribute to the dietary TAC of older adults are poorly studied. We aimed to estimate the dietary TAC and to identify the main foods/groups that contribute to the dietary TAC of older adults in a medium-sized Brazilian city. METHODS: A cross-sectional population-based survey with older adults (≥60 years old) was conducted in Viçosa, Brazil. The assessment tool for food consumption was the recall of habitual consumption. A database with ferric reducing antioxidant power (FRAP) values for foods to evaluate the dietary TAC was used. RESULTS: We evaluated 620 older adults in which the majority were women. The dietary TAC mean was 11.9 (7.1) mmol/d (food only) adjusted by energy. Besides, when supplements were considered the dietary TAC increased to 35.2 (215.9) mmol/d. The food groups that contributed the most to the dietary TAC were coffee and tea, vegetables, and fruits and juices. The coffee and tea group explained most of the variability of dietary TAC (58.3%). CONCLUSIONS: We concluded that the older adults studied had a relatively low dietary TAC consumption. The coffee and tea were the food group that contribute the most to the dietary TAC. Our data show the need to implement national strategies aimed at improving the quality of the diet of older adults. We highlight the need to increase the consumption of different food groups and, consequently, the intake of different compounds with antioxidant capacity, which will contribute to a better dietary TAC with possible positive health effects.

Disponibilidade domiciliar de alimentos a partir da nova classificação de alimentos e (in)segurança alimentar / Household availability of food based on the new classification of food and nutritional (in)security

Resumo O objetivo deste estudo foi caracterizar a disponibilidade domiciliar de alimentos a partir da classificação dos alimentos adotada no novo guia alimentar brasileiro e analisar sua relação com a (in)segurança alimentar. Trata-se de um estudo de base populacional, transversal, realizado em 95 domicílios do Estado do Tocantins. Avaliou-se a (in)segurança alimentar, por meio da Escala Brasileira de Insegurança Alimentar. A disponibilidade domiciliar de alimentos nos últimos 30 dias foi registrada e, posteriormente, classificou-se os alimentos em in natura e/ou minimamente processados, processados e ultraprocessados, conforme o novo guia alimentar brasileiro. A prevalência de insegurança alimentar foi de 55,79%. Verificou-se que os alimentos dos grupos in natura e ultraprocessados foram os que mais contribuíram para a disponibilidade domiciliar de alimentos. Verificou-se relação positiva e significante do grau de segurança alimentar com a disponibilidade dos alimentos: leite, gordura animal, enlatados e pão de queijo. A prevalência de insegurança alimentar foi elevada nessa população. Nos domicílios com maior grau de segurança alimentar, a disponibilidade de leite, gordura animal, enlatados e pão de queijo foi significantemente maior.

Abstract The scope of this research was to characterize the household availability of food based on the classification adopted in the new Brazilian food guide and to analyze its relationship with food (in)security. It involved a population-based, cross-sectional study conducted in 95 households in the State of Tocantins. Food (in)security was evaluated by means of the Brazilian Food Insecurity Scale. The household availability of food in the last 30 days was recorded and, subsequently, food was classified as in natura and/or minimally processed, processed and ultra-processed according to the new Brazilian food guide. The prevalence of food insecurity was 55.79%. It was found that the foods of the in natura and ultra-processed groups contributed the most to the household availability of food. There was a positive and significant relationship between the food security and food availability rates: milk, animal fat, canned food and cheese bread. The prevalence of food insecurity was high in this population group. In households with a higher level of food security, the availability of milk, animal fat, canned goods and cheese bread was significantly higher.

StrongKids for pediatric nutritional risk screening in Brazil: a validation study.

OBJECTIVES: To evaluate the validity and reproducibility of StrongKids as a pediatric nutritional screening tool in Brazil, which has no validated method for this purpose. METHODS: A cross-sectional study was conducted with 641 patients admitted to the pediatric care unit of a public hospital from 2014 to 2018. The concurrent validity was assessed by evaluating the sensitivity, specificity, and the positive and negative predictive values of StrongKids in detecting acute, chronic, and overall malnutrition. Predictive validity was determined by calculating the same indices to identify longer than median hospital stay, need of enteral nutrition, 30-day hospital readmission, transfer to hospitals with more complex procedures, and death. StrongKids was reapplied to a subsample to evaluate the inter-rater reproducibility. RESULTS: Prevalence of low risk was 15.6%, moderate risk was 63.7%, and high nutritional risk was 20.7%. A positive test, corresponding to the moderate or high risk category, identified all those with acute malnutrition and showed sensitivity of 89.4% (95% CI: 76.9-96.4) and 94.0% (95% CI: 86.6-98.0) for the detection of chronic and overall malnutrition, respectively. Regarding its predictive capacity, 100% of the patients who needed enteral nutrition, who were transferred, died, or were readmitted to hospital within 30 days after discharge were considered in risk by StrongKids, and the sensitivity to identify those with prolonged hospital stays was 89.2 (95% CI: 84.6-92.7). The inter-rater agreement was excellent (PABAK: 0.87). CONCLUSIONS: StrongKids had satisfactory validity and reproducibility and successfully identified nutritional deficits and predict unfavorable health outcomes. Our results support the use of StrongKids as a pediatric nutritional risk screening method in Brazil.

Fatores associados aos padrões alimentares no segundo semestre de vida / Factors associated with dietary patterns in the second half of life

Resumo O objetivo deste artigo é identificar padrões alimentares de crianças com 6, 9 e 12 meses e sua associação com variáveis socioeconômicas, comportamentais, de nascimento e nutrição. Estudo transversal com crianças de uma coorte em Viçosa-MG, sendo 112 crianças com 6 meses, 149 com 9 meses e 117 com 12 meses. O consumo alimentar foi avaliado por um recordatório de 24 horas e os padrões extraídos por análise de agrupamentos. O leite materno foi identificado em pelo menos um padrão alimentar em todos os meses. Houve baixa participação de alimentos ultraprocessados nos padrões alimentares identificados. No 6º mês, crianças com menor renda familiar tiveram menos chance de pertencer ao padrão alimentar composto por fórmulas lácteas. Já o sobrepeso/obesidade foi 3,69 vezes maior em crianças que compunham o padrão 2 (fórmulas lácteas, verduras, legumes, carne bovina e pera). Aos 12 meses o déficit de estatura (RP = 3,28) e o uso de mamadeira (RP = 4,51) estiveram associados ao padrão alimentar composto por fórmulas lácteas e leite de vaca. Os padrões alimentares identificados refletiram a importante participação do leite materno na alimentação das crianças. Padrões alimentares com a presença de outros tipos de leite, foram associados a desvios nutricionais e uso de mamadeiras.

Abstract The aim of this paper is to identify eating patterns of children aged 6, 9 and 12 months and their association with socioeconomic, behavioral, birth and nutrition variables. Cross-sectional study with children from a cohort in Viçosa-MG, with 112 children at 6 months, 149 at 9 months and 117 at 12 months. Food intake was assessed by a 24-hour recall and patterns extracted by cluster analysis. Breast milk was identified in at least one dietary pattern every month. There was a low participation of ultra-processed foods in the identified dietary patterns. At month 6, children with lower family income were less likely to belong to the dietary pattern composed of milk formulas. Already overweight/obesity was 3.69 times higher in children who made up the pattern 2 (dairy formulas, vegetables, vegetables, beef and pear). At 12 months height deficit (PR = 3.28) and bottle use (PR = 4.51) were associated with the dietary pattern composed of milk formulas and cow's milk. The dietary patterns identified reflected the important participation of breast milk in children's diets. Dietary patterns with the presence of other types of milk were associated with nutritional deviations and bottle feeding.