Validation of the illustrated questionnaire on food consumption for Brazilian schoolchildren (QUACEB) for 6- to 10-year-old children.

Introduction: Evaluating the food consumption of school-aged children is crucial to monitor their dietary habits, promote targeted interventions, and contribute public policies that aimed healthy eating. In this context, our objective was to develop and validate the Illustrated Questionnaire on Food Consumption for Brazilian Schoolchildren (QUACEB) of 6 to 10 years old, which is a self-reported illustrated recall. Methods: Validity was obtained in four stages as follows: selection of foods, validation of items, validation of illustrations, and pretest. Foods were selected by considering the data from the main surveys that have been conducted with the Brazilian population and schoolchildren in recent years, the degree of food processing, and the main foods from each of the country's five macroregions. The content of the items was validated by comparing the children's and their parent's responses. For this, the questionnaire was published in an online format, and 6- to 10-year-old elementary schoolchildren were recruited using the snowball technique. The first part of the questionnaire was answered by the parent after the child's lunch, and the second was completed by the child the following day. Thirty-two parent and child dyads participated. Sensitivity, specificity, area under the curve (AUC), and kappa (k) tests were performed. Results: Of the 30 foods presented on the questionnaire, 15 were reported as consumed. High sensitivity (mean of 88.5%), high specificity (average of 92.0%), substantial agreement (k = 0.78), low disagreement (6.2%), and AUC of 0.90 were found. The illustrations were validated in a focus group with fourth-grade children from a school chosen for convenience. The food illustrations were designed for children, who were asked to name the food. Eighteen children participated and verified that the images were representative of the foods. In the pretest, three schools were chosen for convenience that announced the link to the online questionnaire in WhatsApp groups of parents with students from first to fifth grade. Fifteen children answered the questionnaire and 86.7% (n = 13) judged it excellent or good. Conclusion: Thus, the food consumption questionnaire is valid for elementary schoolchildren of 6 to 10 years old and can be applied in research to assess the dietary patterns of children in Brazil.

An Updated Review of the Invasive Aedes albopictus in the Americas; Geographical Distribution, Host Feeding Patterns, Arbovirus Infection, and the Potential for Vertical Transmission of Dengue Virus.

Aedes (Stegomyia) albopictus is a mosquito native to Southeast Asia. Currently, it has a wide distribution in America, where natural infection with arboviruses of medical and veterinary importance has been reported. In spite of their importance in the transmission of endemic arbovirus, the basic information of parameters affecting their vectorial capacity is poorly investigated. The aim of the work was to update the distribution range of Ae. albopictus in the Americas, review the blood-feeding patterns, and compare the minimum infection rate (MIR) of the Dengue virus (DENV) between studies of vertical and horizontal transmission. The current distribution of Ae. albopictus encompasses 21 countries in the Americas. An extensive review has been conducted for the blood-feeding patterns of Ae. albopictus. The results suggest that the mosquito is capable of feeding on 16 species of mammals and five species of avian. Humans, dogs, and rats are the most common hosts. Eight arboviruses with the potential to infect humans and animals have been isolated in Ae. albopictus. In the United States of America (USA), Eastern equine encephalitis virus, Keystone virus, La Crosse Virus, West Nile virus, and Cache Valley virus were isolated in the Asian mosquito. In Brazil, Mexico, Colombia, and Costa Rica, DENV (all serotypes) has been frequently identified in field-caught Ae. albopictus. Overall, the estimated MIR in Ae. albopictus infected with DENV is similar between horizontal (10.95) and vertical transmission (8.28). However, in vertical transmission, there is a difference in the MIR values if the DENV is identified from larvae or adults (males and females emerged from a collection of eggs or larvae). MIR estimated from larvae is 14.04 and MIR estimated in adults is 4.04. In conclusion, it has to be highlighted that Ae. albopictus is an invasive mosquito with wide phenotypic plasticity to adapt to broad and new areas, it is highly efficient to transmit the DENV horizontally and vertically, it can participate in the inter-endemic transmission of the dengue disease, and it can spread zoonotic arboviruses across forest and urban settings.

Early life exposure to hypercaloric diet impairs eating behavior during weaning: The role of BDNF signaling and astrocyte marks.

Literature shows that gestational and/or lactational exposure to hypercaloric diets induces long term effects on eating behavior and the involvement of neurochemical mechanisms. We hypothesized that the effects of hypercaloric diets in early development phases can precede an overweight or an obesity status. The aim of the present study was to evaluate the impact of gestational and lactational exposure to cafeteria diet on eating behavior and neurochemical parameters, BDNF signaling, epigenetic and astrocyte marks in the hippocampus and olfactory bulb during the weaning phase. Pregnant female rats were randomized between standard and cafeteria diet, the respective diet was maintained through the lactational period. The framework of feeding pattern, meal, and its microstructure, was observed in postnatal day 20. Exposure to cafeteria diet increased the number of meals, associated with a lower first inter-meal interval and higher consumption in both genders, without any changes in body weight. Diet exposure also reduced the number of grooming, a behavior typically found at the end of meals. Hypercaloric diet exposure reduced BDNF levels in the olfactory bulb and hippocampus from rats of both sexes and increased the content of the TrkB receptor in hippocampi. It was observed an increase in HDAC5 levels, an epigenetic mark. Still, early exposure to the hypercaloric diet reduced hippocampal GFAP and PPARγ levels, without any effect on NeuN content, indicating that alterations in astrocytes can precede those neuronal outcomes. Our results showed that changes in interrelated neurochemical signaling, BDNF, and astrocyte marks, induced by hypercaloric diet in early stages of development may be related to impairment in the temporal distribution of eating pattern and consequent amounts of consumed food during the weaning phase.

Early weaning disrupts feeding patterns in female juvenile rats through 5HT-system modulations.

Convergent evidence in literature shows that rapid disruption of maternal care and breastfeeding due to an early weaning protocol changes the development of several neurobehavioral patterns in rodents, including the circadian pattern of feeding. The serotoninergic system has been associated with the control of feeding patterns. Therefore, we aim to evaluate the patterns of feeding, the mRNA expression of 5 H T-1b, 5 H T-2c, and SERT on the hypothalamus, brainstem, and the body weight of female juvenile Wistar rats, submitted to early (PND15) or regular (PND30) weaning. The results demonstrate that early weaning promotes an increase in food intake in a 24 -h period, in the dark phase of the circadian cycle and in the four-hour time intervals at the beginning of the dark and light phases. Also, early weaning decreases the mRNA expression of 5 H T-1b, 5 H T-2c, and SERT on the hypothalamus, but increases it on the brainstem. Additionally, early weaning promotes an increase in body weight. Therefore, the present data demonstrate that early weaning changes the patterns of feeding in juvenile female rats and suggests that this behavioral modification is due to the modulations promoted in the 5 H T-system.

Variabilidad en el patrón de consumo de alimentos en una población de preescolares de Asunción, de nivel socioeconómico alto y su relación con el estado nutricional / The variability in feeding patterns of pre-schoolers living in Asunción, from families with high socioeconomic status and the relation with their nutritional status

Introducción: La diversidad alimentaria constituye una medida cualitativa del consumo de alimentos, tiene una asociación positiva con la calidad de la dieta y es un factor importante para alcanzar los requerimientos nutricionales. Objetivo: Evaluar la variabilidad en el patrón de consumo de los alimentos de niños pre escolares residentes en Asunción, de condición socioeconómica alta y su relación con el estado nutricional. Metodología: Diseño observacional, trasversal, cualitativo. Se realizó la evaluación de niños prescolares de 2-6 años de nivel socio económico alto de Asunción, de setiembre a octubre de 2014 mediante medición antropométrica y con dos encuestas: una de datos demográficos y otra con la lista de todos los alimentos disponibles en el mercado, mediante entrevista directa. Se evaluó estado nutricional y su relación con la diversidad alimentaria. Se utilizó medidas de frecuencia y el programa Anthro 3.2 de la Organización Mundial de la Salud. Resultados: Se estudiaron 67 niños, con predominó del sexo femenino. El 89,5 % de madres tuvo estudios terciarios concluidos. Se encontraban eutróficos (63% de los niños) y 31,5 % con malnutrición por exceso (sobrepeso y obesidad) Un 19% presentó riesgo de talla baja y el 1,5% talla baja. Se hallaron un total de 172 tipos de alimentos que se distribuyeron en 9 grupos, la media de número de alimentos consumidos por los niños pre escolares fue de 69,19 (IC 95%: 63,79- 74,59). El rango mínimo fue de 28 alimentos y el máximo 126 alimentos. No se encontró diferencias significativas con el Índice de Masa Corporal y la diversidad alimentaria; sin embargo la relación fue estadísticamente significativa entre diversidad de la alimentación y la talla alta. Conclusión: Se constató que existe poca variabilidad en el consumo de alimentos de niños pre escolares sin restricción socio económica. Se encontró relación significativa entre diversidad Alimentaria y la talla del niño

Introduction: Food diversity can be used to measure the quality of the feeding habits. It has a positive association with diet quality and constitutes an important factor to reach the nutritional requirements. Objectives: Assess the variability in feeding patterns of pre-schoolers living in Asunción, from families with high socioeconomic status and the relation with their nutritional status. Methodology: Observational, transversal in time, qualitative study. The researchers evaluated children from 2-6 years of age, from families with high socioeconomic status living in Asunción, from September to October of 2014, using antromopetric measures and two questionnaires applied in direct interview format: the first one with demographic data and the second one with a list of locally available food. The nutritional status and its relation with food diversity were assessed, measuring frequency. World's Health Organization's Software Anthro 3.2 was used for anthropometric evaluation. Results: In total, 67 children were included in the study, mainly female. 89,5% of the patient's mother had concluded tertiary education. 63% of patients were well-nourished and 31,5% had excess weight (overweight and obese). 19% were in risk of stumpting and 1,5% were in the range of stumpting. A total of 172 food varieties were found, distributed in 9 groups, the mean quantity of food varieties consumed by children was of 69,19 (CI: 95%, 63,79-74,59), ranging from 28 to 126 food varieties. Significant differences were not found in Body Mass Index and food diversity; but a statistically significant relation was found between food diversity and height. Conclusion: Low variability in feeding patterns was found in children with high socioeconomic status. There was a significant relation between food diversity and the child's height

Differences in ichthyofauna feeding habits among lateral lagoons and the river channel in a large reservoir / As diferenças nos hábitos alimentares da ictiofauna entre lagoas laterais e o canal do rio em um grande reservatório

In this study, we investigated differences in feeding habits of small-sized ichthyofauna among lateral lagoons and the river channel in a large reservoir. The study was performed in four lagoons and in one sampling site of the main channel in Rosana Reservoir, Paranapanema River, Brazil. The samples were taken in September and November of 2004 and in January, March, May, and August of 2005. Fish were sampled with a 7.5 m2 hand net. Five manual throws were made toward aquatic macrophytes stands. The sampling design favored the collection of small-sized fish fauna (juveniles/small-sized species). The stomach contents of 42 species were analyzed. A total of 183 different items were consumed by fish. These items were grouped in 11 food categories, which were used to classify fish into seven trophic guilds. Aquatic insects were consumed by 32 species and were the predominant feeding item. In the river, the most consumed items were aquatic insects, cladocerans, and phytoplankton, whereas in the lagoons aquatic insects, copepods, and cladocerans were the main items. By comparing each trophic guild, the number of insectivores, algivores, and zooplanktivores species was higher in the lagoons than in the river, and the opposite was found only for omnivore fish. Low niche width in all sites indicates high trophic specialization and low niche overlap between pairs of species. Fish assemblage in the lateral lagoons presents feeding habits distinct from those of the river species, indicating that the coexistence and high abundance of small-sized fish in the sampling sites are explained by their high feeding adaptability, which includes a tendency toward dietary specialization, low feeding overlap, and resource partitioning, along with different temporal resource uses.

O objetivo deste estudo foi avaliar a diferença no hábito alimentar da ictiofauna entre lagoas laterais e o canal do rio num reservatório de grande porte. O estudo foi realizado em quatro lagoas e um ponto no reservatório de Rosana, rio Paranapanema, Brasil. As amostras foram coletadas em setembro e novembro de 2004 e janeiro, março, maio e agosto de 2005. Foram realizados cinco arrastos manuais com uma rede de 7,5m2, junto aos bancos de macrófitas aquáticas. O desenho amostral favoreceu a coleta de peixes juvenis e espécies de pequeno porte. Os conteúdos estomacais de 42 espécies foram analisados. Um total de 183 diferentes itens foi consumido, que foram agrupados em 11 categorias alimentares. Sete guildas tróficas foram estabelecidas. Insetos aquáticos foram consumidos por 32 espécies de peixes, sendo o item alimentar predominante. O padrão alimentar da ictiofauna no rio foi diferente quando comparado as lagoas, como demonstrado na Análise de Correspondência Destendenciada. No rio, os principais itens alimentares foram insetos aquáticos, cladóceros e fitoplâncton, enquanto que nas lagoas os principais itens foram insetos aquáticos, copépodes e cladóceros. Comparando-se cada guilda trófica, o número de espécies de insetívoros, algívoros e zooplanctívoros foi maior nas lagoas do que no rio e o oposto foi encontrado somente para os onívoros. Foram registrados baixos valores de amplitude de nicho, indicando que as espécies apresentam alta especialização trófica, e baixa sobreposição de nicho trófico entre os pares de espécies. Finalmente, este estudo mostra que a coexistência e alta abundância das espécies de peixe de pequeno porte encontrada nas lagoas laterais são explicadas pela adaptabilidade alimentar, o uso temporal dos recursos pelos peixes e pela ampla disponibilidade de alimento existente nas lagoas.

Poor alkaloid sequestration by arrow poison frogs of the genus Phyllobates from Costa Rica.

Frogs of the genus Phyllobates from Colombia are known to contain the highly toxic alkaloid batrachotoxin, but species from Central America exhibit only very low levels or are entirely free of this toxin. In the present study alcohol extracts from 101 specimens of Phyllobates lugubris and Phyllobates vittatus and 21 of three sympatric species (Dendrobates pumilio, Dendrobates auratus, Dendrobates granuliferus) from Costa Rica were analyzed by gas chromatography-mass spectrometry. Whereas the extracts of the Dendrobates species exhibited typical profiles of toxic alkaloids, those of the two Phyllobates species contained low levels of few alkaloids only, batrachotoxin was not detected. Although the feeding pattern of the Dendrobates and Phyllobates species are similar as revealed by examination of their stomach content (mainly ants and mites), the Phyllobates species are poorly sequestering alkaloids from their food source in contrast to the Dendrobates frogs.

Índice de masa corporal y tensión arterial al año de edad según peso al nacer, ganancia de peso y patrones de alimentación temprana / Body mass index and blood pressure at one year of age by birth weight, weight gain and early feeding patterns

Introducción. Las alteraciones en el crecimiento temprano se asocian con diferentes condiciones adversas en el curso de la vida. Objetivo. Analizar la asociación entre variación en el estado nutricional durante el segundo semestre de la vida y tensión arterial al año de vida, según condiciones al nacer y patrones alimentarios en una cohorte de niños sanos. Población y métodos. Estudio prospectivo de una cohorte de niños sanos seguidos entre los 6 y 12 meses de edad, entre octubre/2007 y marzo/ 08 en el Hospital Pedro de Elizalde. Se valoró peso y edad gestacional al nacer, peso, talla e índice de masa corporal (IMC) a los 6, 9 y 12 meses, duración de lactancia materna y tensión arterial a los 12 meses de edad. Resultados. Se estudiaron 120 niños que completaron el seguimiento. La variación en el valor estandarizado de IMC entre 6-12 meses de edad constituye el único predictor de IMC a los 12 meses (R2 0,12; Coef b 0,34; error estándar 0,11; p 0,006). La interacción entre duración de lactancia materna y bajo peso para la edad gestacional constituye el principal predictor de la variación de IMC (R2 0,11; Coef b -0,15; error estándar 0,04, p < 0,001). El incremento en una unidad estandarizada de IMC al año implica un incremento en 1,76 mmHg de tensión arterial diastólica. Conclusión. El aumento en el IMC se vinculó con menor duración de la lactancia materna. Tal variación se asocia con mayor IMC al año de edad y éste, a su vez, con mayor tensión arterial.

Introduction. Abnormal early growth patterns have been associated with overweight and other related diseases along the life course. Objective. To analyze the association between changes in growth patterns and nutrition status during the second semester of life and blood pressure (BP), according to weight for gestational age (GE), and early dietary patterns, in a sample of healthy children. Methods. Prospective study from a sample of healthy children followed between 6-12 months of age, between 10/07 and 3/08 at Hospital P. Elizalde. Gender, weight and gestational age at birth, weight, height and body mass index (BMI, WHO ref.) at 6, 9 and 12 months, length of breastfeeding, and blood pressure (BP) at 12 months of age were assessed. Results. One hundred twenty infants were follow- up. Variation in standardized BMI between 6-12 months of age is the main predictor of BMI at 12 months of age (R2 0.12; Coef b 0.34; error estándar 0.11; p 0.006). The interaction term between length of breastfeeding and small for gestational age is the main predictor of changes in BMI between 6-12 months of age (R2 0.11; Coef b -0.15; error estándar 0.04, p < 0.001). Each standardized unit increment in BMI implies an increase of 1.76 mmHg in diastolic blood pressure at one year. Conclusion. Length of gestation, birth weight and early feeding patterns are associated with weight gain during the first year of life, which is linked at the same time to BMI and BP. The positive change in BMI was associated with shorter duration of breastfeeding and this in turn to higher blood pressure at one year.