Chromium supplemented carbohydrate diets for Cirrhinus mrigala: effects on body composition, gut enzyme activity and hematological parameters / Dietas com carboidratos suplementados com cromo para Cirrhinus mrigala: efeitos sobre a composição corporal, atividade enzimática intestinal e parâmetros hematológicos

A ninety days nutritional trial was directed to explore the effects of dietary chromium on body composition, gut enzyme activity and physiological status of Cirrhinus mrigala by using G & NG corn. Six experimental diets were prepared by using different levels of chromium chloride hexahydrate (0, 0.2, 0.4 mg/kg, each with G & NG corn). For this experimental trial, 480 fingerlings, irrespective of sex were distributed in six aquariums each with replicate. Results revealed that gelatinized corn along with increasing level of Cr2Cl3.6H2O have a positive impact upon body composition of fish. Hematology was positively correlated with chromium chloride hexahydrate supplementation in gelatinized corn. Amylase gut enzyme also showed significant (P<0.05) increase in group fed with chromium chloride hexahydrate supplemented diet (G corn). However, corn with chromium chloride hexahydrate supplementation did not revealed any significant impact on gut protease enzyme activity. From these results it can be concluded that both chromium chloride hexahydrate and gelatinized corn in fish feed are very beneficial to improve body composition, enzymes activity and physiological health status of fish.

Um ensaio nutricional de 90 dias foi dirigido para explorar os efeitos do cromo dietético na composição corporal, atividade enzimática intestinal e estado fisiológico de Cirrhinus mrigala usando milho G & NG. Seis dietas experimentais foram preparadas usando diferentes níveis de cloreto de cromo hexa-hidratado (0, 0,2, 0,4 mg/kg, cada um com milho G e NG). Para este ensaio experimental, 480 alevinos, independentemente do sexo, foram distribuídos em seis aquários, cada um com réplicas. Os resultados revelaram que o milho gelatinizado, juntamente com o aumento do nível de Cr2Cl3.6H2O, tem um impacto positivo na composição corporal dos peixes. A hematologia foi positivamente correlacionada com a suplementação de cloreto de cromo hexa-hidratado em milho gelatinizado. A enzima amilase intestinal também apresentou aumento significativo (P <0,05) no grupo alimentado com dieta suplementada com cloreto de cromo hexa-hidratado (milho G). No entanto, o milho com suplementação de hexahidrato de cloreto de cromo não revelou nenhum impacto significativo na atividade da enzima protease intestinal. Desses resultados, pode-se concluir que tanto o cloreto de cromo hexa-hidratado quanto o milho gelatinizado na alimentação de peixes são muito benéficos para melhorar a composição corporal, a atividade de enzimas e o estado fisiológico de saúde dos peixes.

The effect of fruit consumption time on glucose regulation in pregnancy with gestational diabetes / O efeito do tempo de consumo de fruta na regulação da glicose na gravidez com diabetes gestacional

ABSTRACT Objective This study aims to determine the effect of fruit consumption time on blood glucose regulation in pregnant women with gestational diabetes. Methods The study was carried out with 64 volunteer participants diagnosed with gestational diabetes. Participants who were directed to the Department of Nutrition and Dietetics were divided into two groups according to the order of application; Group 1 was included in the nutrition treatment program for a week, consuming fruit for the main meal and Group 2 for the snack. During this process, the participants were applied a personalized nutrition plan that was adjusted equally for macronutrients of all meals containing isocaloric 3 main and 4 snacks. In this process, blood glucose values were measured six times a day by the participants and the blood glucose results of both groups before starting the nutrition therapy and on the seventh day after starting the medical nutrition therapy were compared. Results The mean age of the women participating in the study was 33.50±4.95 years and 32.28±5.18 years for the 1st and 2nd groups, respectively, and the groups were similar in terms of anthropometric measurements. The post-diet average of postprandial blood glucose levels in the morning within each group dropped from 180mg/d to 115mg/dL (p<0,001) for Group 1 and from 185mg/dL to 110mg/dL (p<0,001) for Group 2. There was a decrease in the fasting plasma glucose and postprandial blood glucose levels measured in the morning, noon and evening before and after the medical nutrition therapy of the groups, but no statistically significant difference was found between the groups (p>0.05). All participants on the gestational diabetes diet had normal blood sugar levels without the need for insulin. A statistically significant decrease was observed in the postprandial blood glucose-fasting plasma glucose difference levels of the pregnant women in the group that consumed fruit for snacks (Group 2) on the seventh day of the study (p<0,001). There was no significant difference in the pre-diet and post-diet morning fasting plasma glucose values of both groups (p>0,05). Conclusion This study found that medical nutrition therapy in pregnant women with gestational diabetes led to a decrease in blood glucose levels, but consuming fruits as a snack or at the main meal did not make a significant difference on fasting plasma glucose and postprandial blood glucose. It was concluded that the type and amount of carbohydrates consumed daily in gestational diabetes are determinative on blood glucose level.

RESUMO Objetivo O objetivo deste estudo é determinar o efeito do tempo de consumo de fruta na regulação da glucose no sangue em mulheres grávidas com diabetes gestacional. Métodos Este estudo foi realizado com 64 participantes voluntários diagnosticados com diabetes gestacional. Os participantes que foram encaminhados para o Departamento de Nutrição e Dietética foram divididos em dois grupos, de acordo com a ordem da sua aplicação. O grupo 1 foi incluído no programa de tratamento médico nutricional durante uma semana, consumindo fruta para a refeição principal e o grupo 2 para os lanches. Neste processo, foi aplicado aos participantes um plano de nutrição personalizado, com isocalórico, 3 refeições principais e 4 lanches, os macronutrientes de todas as refeições foram ajustados igualmente. Neste processo, os valores de glicemia foram medidos seis vezes por dia pelos participantes, e foram comparados os resultados da glicemia de ambos os grupos antes de se iniciar a terapia nutricional médica e no sétimo dia após o início da terapia nutricional médica. Resultados A idade média das mulheres que participaram no estudo foi de 33,50±4,95 e 32,28±5,18 anos para o 1º e 2º grupos, respetivamente, e não houve diferença entre os grupos em termos de medidas antropométricas. A glicemia média pós-prandial de manhã após terapia nutricional médica dentro dos grupos variou entre 180mg/d a 115mg/dL (p<0,001) para o Grupo 1, e de 185mg/dL a 110mg/dL para o Grupo 2 (p<0,001). Houve uma diminuição nos níveis de glicemia em jejum e glicemia média pós-prandial medidos de manhã, meio-dia e noite antes e depois da terapia nutricional médica dos grupos, mas não houve diferença estatisticamente significativa entre os grupos (p>0,05). Os níveis de açúcar no sangue de todos os participantes na dieta diabetes gestacional baixaram para níveis normais sem necessidade de terapia com insulina. Uma diminuição estatisticamente significativa foi observada no sétimo dia do estudo nos níveis de diferença do glicemia média pós-prandial-glicemia em jejum das mulheres grávidas do grupo que consumiram fruta como aperitivo (Grupo 2). (p<0.001). Não houve diferença significativa nos valores de glicemia em jejum matinal de ambos os grupos antes e depois da dieta (p>0,05). Conclusão Como resultado deste estudo, verificou-se que a terapia nutricional levou a uma diminuição do açúcar no sangue em mulheres grávidas com diabetes gestacional, mas o consumo de fruta como lanche ou refeição principal não fez uma diferença significativa no jejum e na glucose do sangue pós-prandial. Concluiu-se que o tipo e a quantidade de hidratos de carbono consumidos diariamente na diabetes gestacional são determinantes para o nível de glicose no sangue.

Association between glycemic control in different emotional conditions and adherence to carbohydrate counting in people with type 1 diabetes during the COVID-19 pandemic in Brazil / Associação entre controle glicêmico em diferentes condições emocionais e adesão à contagem de carboidratos em pessoas com diabetes tipo 1 durante a pandemia de COVID-19 no Brasil

ABSTRACT Objective Evaluate the association between glycemic control in different emotional perceptions and the adherence to carbohydrate counting by adults with type 1 diabetes during the COVID-19 pandemic in Brazil. Methods This cross-sectional, descriptive, and analytical study was approved by the Research Ethics Committee (Opinion nº 4,147,663) and conducted in July 2020 using a Google Forms® form. Socioeconomic and demographic data were collected; glycemic monitoring according to the individuals' emotions at the time of measurement (happy, motivated, or hopeful; stressed or anxious; sad, distressed, or with depressive symptoms); data on adherence to carbohydrate counting and social distancing. Pearson's Chi-Square test was applied with adjusted residual analysis (p<0.05). Results Approximately 64.62% of the 472 participants, had hyperglycemia when stressed/anxious, and 52.97% when they felt sad/distressed/depressive (p<0.000). Associations were observed between having normoglycemia in any emotional situation and performing the carbohydrate counting (p<0.000); perceiving oneself as happy/motivated/hopeful and having hyperglycemia, and not measuring blood glucose was associated with not having the carbohydrate counting (p<0.000); being stressed or anxious was associated with not measuring blood glucose and not having the carbohydrate counting (p<0.000). Conclusion The need for multidisciplinary care to enhance mental health and adherence to treatment for people with type 1 diabetes is highlighted.

RESUMO Objetivo O estudo objetivou avaliar a associação entre o controle glicêmico em diferentes percepções emocionais e a adesão à contagem de carboidratos por adultos com diabetes tipo 1 durante a pandemia de COVID-19 no Brasil. Métodos Trata-se de um estudo transversal, descritivo e analítico aprovado pelo Comitê de Ética em Pesquisa (Parecer 4.147.663), realizado em julho de 2020 por meio de formulário Google Forms®. Foram coletados dados socioeconômicos e demográficos; monitoramento glicêmico de acordo com as emoções do indivíduo no momento da mensuração (feliz, motivado ou esperançoso; estressado ou ansioso; triste, angustiado ou com sintomas depressivos); dados sobre adesão à contagem de carboidratos e distanciamento social. Aplicou-se o teste qui-quadrado de Pearson com análise residual ajustada (p<0,05). Resultados Dos 472 participantes, 64,62% apresentavam hiperglicemia quando estressados/ansiosos, e 52,97%, quando se sentiam tristes/angustiados/depressivos (p<0,000). Foram observadas associações entre ter normoglicemia em qualquer situação emocional e realizar a contagem de carboidratos (p<0,000), perceber-se feliz/motivado/esperançoso e ter hiperglicemia, assim como não medir a glicemia foi associado a não ter a contagem de carboidratos (p<0,000). Estar estressado ou ansioso foi associado a não medir a glicemia e não ter a contagem de carboidratos (p<0,000). Conclusão Destaca-se a necessidade de atendimento multidisciplinar para potencializar a saúde mental e a adesão ao tratamento de pessoas com diabetes tipo 1.

Activación de sensores del estrés del retículo endoplásmico por dietas asociadas a enfermedades metabólicas y COVID-19 / Activation of endoplasmic reticulum stress sensors by metabolic disease-associated diets and COVID-19

El retículo endoplásmico es un organelo abundante, dinámico y sensor de energía. Sus abundantes membranas, rugosa y lisa, se encuentran distribuidas en diferentes proporciones dependiendo del linaje y requerimiento celular. Su función es llevar a cabo la síntesis de proteínas y lípidos, y es el almacén principal de Ca2+ intracelular. La sobrecarga calórica y la glucolipotoxicidad generada por dietas hipercalóricas provoca la alteración del retículo endoplásmico, activando la respuesta a proteínas mal plegadas (UPR, Unfolded Protein Response, por sus siglas en inglés) como reacción al estrés celular relacionado con el retículo endoplásmico y cuyo objetivo es restablecer la homeostasis del organelo al disminuir el estrés oxidante, la síntesis de proteínas y la fuga de Ca2+. Sin embargo, durante un estrés crónico, la UPR induce formación de especies reactivas de oxígeno, inflamación y apoptosis, exacerbando el estado del retículo endoplásmico y propagando un efecto nocivo para los demás organelos. Es por ello que el estrés del retículo endoplásmico se ha considerado un inductor del inicio y desarrollo de enfermedades metabólicas, incluido el agravamiento de COVID-19. Hasta el momento, existen pocas estrategias para reestablecer la homeostasis del retículo endoplásmico, las cuales son dirigidas a los sensores que desencadenan la UPR. Por tanto, se justifica con urgencia la identificación de nuevos mecanismos y terapias novedosas relacionadas con mitigar el impacto del estrés del retículo endoplásmico y las complicaciones asociadas.

The endoplasmic reticulum is an abundant, dynamic and energy-sensing organelle. Its abundant membranes, rough and smooth, are distributed in different proportions depending on the cell lineage and requirement. Its function is to carry out protein and lipid synthesis, and it is the main intracellular Ca2+ store. Caloric overload and glycolipotoxicity generated by hypercaloric diets cause alteration of the endoplasmic reticulum, activating the Unfolded Protein Response (UPR) as a reaction to cellular stress related to the endoplasmic reticulum and whose objective is to restore the homeostasis of the organelle by decreasing oxidative stress, protein synthesis and Ca2+ leakage. However, during chronic stress, the UPR induces reactive oxygen species formation, inflammation and apoptosis, exacerbating the state of the endoplasmic reticulum and propagating a deleterious effect on the other organelles. This is why endoplasmic reticulum stress has been considered an inducer of the onset and development of metabolic diseases, including the aggravation of COVID-19. So far, few strategies exist to reestablish endoplasmic reticulum homeostasis, which are targeted to sensors that trigger UPR. Therefore, the identif ication of new mechanisms and novel therapies related to mitigating the impact of endoplasmic reticulum stress and associated complications is urgently warranted.

Evaluation de la fréquence de la consommation journalière des aliments des diabétiques de type 1 et leurs fratries du district d'Abidjan, Côte d'Ivoire / Evaluation of the frequency of daily food consumption of Type 1 diabetes and their siblings in the district of Abidjan, Cote D'ivoire

Contexte. L'alimentation joue un rôle important dans la prise en charge du diabète en Côte D'Ivoire. L'objectif de ce travail est d'évaluer la fréquence de consommation journalière des aliments chez les diabétiques de type 1 (DT1) et leurs fratries du district d'Abidjan. Méthodes. Une fi che d'enquête comportant les mets Ivoiriens a été utilisée pour la réalisation de l'étude. Etaient eligibles les patients déclarés diabétiques et ayant au moins un frère ou une sœur non diabétique âgé de 5 à 21 ans. Les patients séropositifs au VIH et sous traitement antirétroviral n'ont pas été retenu dans l'étude. le logiciel Graphpad Prism version 5. Résultats. Le riz, l'attiéké et le pain de boulangerie ont été les aliments les plus consommés par les DT1 et leurs fratries (100 %). Au niveau des protéines animales, ce sont la viande dans la sauce, la viande fumée, le poisson dans la sauce et le poisson fumé qui ont été le plus consommés chez les DT1 et leurs fratries (63,15 % et 86,66 %; 68,42 % et 73,33 %; 68,42 % et 66,66 %; 68,42 % et 76,66 %). Les DT1 et leurs fratries ont consommé comme lipides, les huiles alimentaires et la sauce graine. Conclusion. Le régime alimentaire des DT1 et leurs fratries est équilibré, avec un régime plus ouvert chez la fratrie

Context. Diet plays an important role in the management of diabetes in Côte d'Ivoire. The objective of this work is to evaluate the frequency of daily food consumption in type 1 diabetics (T1D) and their siblings in the district of Abidjan. Methods. A survey sheet including Ivorian dishes was used to carry out the study. Results. Rice, attiéké and bakery bread were the foods most consumed by T1Ds and their siblings (100%). At level of animal protein, meat in sauce, smoked meat, fi sh in sauce and smoked fi sh were the most consumed among T1D and their siblings (63.15% and 86.66% ; 68.42% and 73.33% ; 68.42% and 66.66% ; 68.42% and 76.66%). T1Ds and their siblings consumed lipids, edible oils and seed sauce. Conclusion. the diet of T1D and their siblings is balanced, with a more open diet in the siblings.

Effect of the Seasonal Adaptability on Carbohydrate-electrolyte Beverage Efforts on Post-exercise Rehydration in Healthy Young Men / 中国医学科学院学报

Objective To compare the effects of carbohydrate-electrolyte beverage on post-exercise rehydration of healthy young men in different seasons,and to explore the influence of seasonal adaptability on fluid and electrolyte balance.Methods Fifteen healthy men,aged(24.4±0.5)years,completed 2 trails in a random crossover design both in summer and winter.During recovery,they consumed a drink volume equivalent to 100% of their sweat loss with plain boiled water(the water group)or carbohydrate-electrolyte beverage(the beverage group).Recovery was monitored for further 180 minutes by the collection of blood and urine samples.Results The dehydration time in summer was significantly shorter by about 20 minutes than that in winter(

Optimization of polysaccharide extraction from Hippocampus by deep neural network and Box-Behnken design-response surface methodology / 中国中药杂志

In this paper, the extraction rate of crude polysaccharides and the yield of polysaccharides from Hippocampus served as test indicators. The comprehensive evaluation indicators were assigned by the R language combined with the entropy weight method. The Box-Behnken design-response surface methodology(BBD-RSM) and the deep neural network(DNN) were employed to screen the optimal parameters for the polysaccharide extraction from Hippocampus. These two modeling methods were compared and verified experimentally for the process optimization. This study provides a reference for the industrialization of effective component extraction from Chinese medicinals and achieves the effective combination of modern technology and traditional Chinese medicine.

Macronutrients of mothers milk of very low birth weight infants: analysis according to gestational age and maternal variables / Macronutrientes do leite materno de recém-nascidos de muito baixo peso: análise segundo idade gestacional e variáveis maternas

ABSTRACT Objective: To analyze the composition of macronutrients present in the milk of mothers of preterm newborn infants (PTNB) - protein, fat, carbohydrate, and calories - by gestational age (GA), chronological age (CA) and maternal variables. Methods: Longitudinal study that analyzed 215 milk samples from the 51 mothers of PTNB admitted in three Neonatal Intensive Care Units of Rio de Janeiro from May/2013-January/2014. Milk collection was performed by pickup pump, on a fixed day of each week until discharge. The spectrophotometric technique with Infrared Analysis (MilkoScan Minor 104) was used for the quantitative analysis. A sample of 7 mL of human milk was taken from the total volume of milk extracted by the mother. The data was grouped by GA (25-27, 28-31, 32-36, 37-40 weeks) and by CA (zero to 4, 5-8, 9-12, 13-16 weeks). Results: Protein, carbohydrate, fat and calories did not show any pattern of change, with no difference among groups of GA. When the macronutrients were analyzed by groups of CA, protein decreased, with significant difference between the first two groups of CA. Carbohydrates, fat and calories presented increasing values in all groups, without significant differences. Weight gain during pregnancy, maternal hypertension and maternal age were associated with changes in fat and calories in the first moment of the analysis of milk. Conclusions: There was a significant decrease in the levels of protein during the first eight weeks after birth. CA may be an important factor in the composition of human milk.

RESUMO Objetivo: Analisar a composição dos macronutrientes presentes no leite de mães de recém-nascidos pré-termo (RNPT) - gorduras, carboidratos e calorias - por idade gestacional (IG), idade cronológica (IC) e variáveis maternos. Métodos: Estudo longitudinal para analisar 215 amostras de leite de 51 mães de RNPT admitidos em três unidades neonatais do Rio de Janeiro de maio/2013 a janeiro/2014. A coleta de leite foi realizada por bomba coletora, em dia fixo a cada semana até a alta. Utilizou-se a técnica espectrofotométrica com análise de infravermelho (MilkoScan Minor 104) para a análise quantitativa. Uma amostra de 7 mL de leite humano foi retirada do volume total de leite extraído pela mãe. Os dados foram agrupados por IG (25-27, 28-31, 32-36 e 37-40 semanas) e por IC (0-4, 5-8, 9-12 e 13-16 semanas). Resultados: Proteínas, carboidratos, gorduras e calorias não apresentaram nenhum padrão de mudança, não havendo diferença entre os grupos de IG. Quando os macronutrientes foram analisados por grupos de IC, a proteína diminuiu, com diferença significante entre os dois primeiros grupos de IC. Carboidratos, gorduras e calorias apresentaram valores crescentes em todos os grupos, sem diferença estatística. O ganho de peso durante a gestação, a presença de hipertensão arterial e a idade materna foram associados a alterações de gordura e calorias no primeiro momento da análise do leite. Conclusões: Observou-se redução estatisticamente significante nos níveis de proteína durante as primeiras oito semanas após o nascimento. A IC pode ser um fator importante na composição do leite humano.

Propuesta de utilización de harina de cabeza de pescado para fortificar alimentos de consumo popular altos en carbohidratos / Proposal for the use of fish head meal to fortify popular consumption foods high in carbohydrates

En esta investigación documental se presentan alternativas viables para utilizar cabezas de pescado, subproductos de la acuicultura, para elaborar harina que sirva como materia prima para la fortificación de productos alimenticios nutritivos. La harina de cabeza de pescado propuesta en esta investigación puede ser integrada exitosamente a alimentos para consumo humano, y usadas en las proporciones adecuadas no causa interferencias en las propiedades sensoriales de los productos formulados. Para masificar la producción de los alimentos fortificados con harina de cabeza de pescado propuestos en este estudio, es indispensable practicarle además una serie de pruebas denominadas "vida de anaquel".

In this documentary research, viable alternatives are presented to use fish heads, by-products of aquaculture, to make flour that serve as raw material for the fortification of nutritious food products. The fish head meal proposed in this research can be successfully integrated into food for human consumption, and used in the appropriate proportions does not cause interference in the sensory properties of the formulated products. To massify the production of foods fortified with fish head meal proposed in this study, it is essential to also perform a series of tests called "shelf life".

Dieta baja en carbohidratos y dieta cetogénica: impacto en enfermedades metabólicas y reproductivas

With low carbohydrate diets glucose becomes unavailable as a source of energy for our body, leading to the production of ketones from fatty acids in the liver. The increase in plasma ketones is known as nutritional ketosis. The available evidence from basic and clinical studies indicates that both low carbohydrate and high fat low carbohydrate diets are effective for weight loss and are better than non-intervention. However, low carbohydrate diet and ketogenic diets induce unique metabolic changes and consistently improve some markers of cardiovascular risk, lowering elevated blood glucose, insulin, triglycerides, ApoB and saturated fat concentrations, reducing small dense LDL particle numbers, glycated hemoglobin levels, blood pressure and body weight while increasing HDL-cholesterol concentrations and reversing non-alcoholic fatty liver disease. Low carbohydrate diets are an efficient strategy for the management of obesity and metabolic syndrome. They may also benefit patients with polycystic ovary syndrome. They must be prescribed by trained professionals to balance the risks and benefits for each individual patient. Future research is required to improve the knowledge about individual responses to dietary interventions, their safety, tolerance, efficacy and long-term effects.

Supplementation with different non-fiber carbohydrate sources in dairy cow diets with high or low rumen-undegradable protein content / Suplementação com diferentes fontes de carboidratos não fibrosos em dietas para vacas leiteiras com alto ou baixo teor de proteína não degradável no rúmen

The objective for this study was to evaluate the supplementation with different non-fibrous carbohydrate (NFC) sources for grazing dairy cows in diets with high or low concentrations of rumen undegradable protein (RUP). Twelve multiparous cows averaging 30kg/d of milk production and 45±23 days in milk in a 4x4 Latin square design with 2 × 2 factorial arrangement were used. The difference in NFC content of the diets was achieved using ground corn (GC) or dried citrus pulp (DCP). Dietary RUP was altered by the partial replacement of soybean meal (LRUP) by roasted whole soybean and corn gluten meal (HRUP). Greater dry matter intake (DMI) was observed in DCP treatments compared to GC treatments (19.2 and 17.7kg/day of DM, respectively). Milk fat concentration was lower for LRUP treatments (3.4%) when compared to HRUP (3.6%). The milk protein concentration was greater for GC treatments (2.9%) in relation to DCP treatments (2.8%). Lower milk ureic nitrogen was observed when DCP diets were fed compared to those with GC (17.8 and 21.2mg/dL, respectively). The use of DCP as CNF source increased dry matter intake as well as milk fat concentration, although no differences in milk production were observed for RUP level.(AU)

Objetivou-se avaliar a suplementação com diferentes fontes de carboidratos não fibrosos (CNF) em vacas manejadas a pasto em dietas com alta ou baixa concentração de proteína não degradável no rúmen (PNDR). Doze vacas multíparas com média de 30kg leite/ dia e 45±23 dias em lactação foram utilizadas em delineamento quadrado latino 4x4 com arranjo fatorial 2 × 2. As fontes de CNF foram milho moído (MM) e polpa cítrica seca (PC). A PNDR da dieta foi alterada pela substituição parcial do farelo de soja da dieta de baixa PNDR (BPNDR) por grão de soja tostado e farelo de glúten de milho dieta de alta PNDR (APNDR). Foi observado maior consumo de matéria seca (CMS) nos tratamentos com PC quando comparado aos tratamentos com MM (19,2 e 17,7kg / dia de MS, respectivamente). O teor de gordura do leite foi menor para os tratamentos com BPNDR (3,4%) em comparação aos tratamentos com APNDR (3,6%). O teor de proteína do leite foi maior nos tratamentos com MM (2,9%) em relação aos tratamentos com PC (2,8%). Foram observados menores teores de nitrogênio ureico no leite dos animais alimentados com PC em relação aos com MM (17,8 e 21,2mg / dL, respectivamente). O uso de PC como fonte de CNF aumentou o consumo de matéria seca, bem como o teor de gordura do leite, embora não tenham sido observadas diferenças na produção de leite relacionada a alteração nos teores de PNDR.(AU)

Composição química e cinética de degradação ruminal in vitro de aveia branca cv. URS guapa sob diferentes níveis de adubação nitrogenada / Chemical compounds and kinects of in vitro ruminal degradation of white oats URS Guapa under distinct levels of nitrogen fertilization

Avaliaram-se as doses de nitrogênio 0, 60, 120 e 240kg ha-1 sobre a composição bromatológica e os parâmetros da cinética de degradação ruminal da aveia branca obtida de dois anos de cultivo (2013-2014). Foram realizadas as análises de matéria seca, matéria mineral (MM), proteína bruta (PB), extrato etéreo, fibra em detergente neutro (aFDNmo), lignina, carboidratos solúveis (CHOs) e proteína insolúvel em detergente ácido (PIDA). Não foi observado efeito da adubação nitrogenada sobre as variáveis em nenhum dos anos de cultivo. As variáveis bromatológicas foram influenciadas pelos fatores ambientais. A cinética de degradação ruminal foi correspondente à composição bromatológica. No ano de 2013, foram observados valores superiores para as variáveis PB, MM, PIDA, CHOs e carboidratos não fibrosos, o que influenciou positivamente nos parâmetros da cinética de produção de gás in vitro, Vf 1 e k 2. A composição da cultivar em 2014 tendeu a maiores teores de aFDNmo, lignina e carboidratos totais e a valores superiores para os parâmetros Vf 2 e L. O parâmetro k 1 não foi significativo nos períodos avaliados. Em 2014 o valor nutritivo foi negativamente influenciado pelo atraso na semeadura e pela soma de períodos de restrição hídrica combinados com a elevação da temperatura.(AU)

Doses of Nitrogen were evaluated: 0, 60, 120 and 240kg ha-1 on the chemical composition and rumen degradation kinetics of white oats obtained from two consecutive years (2013-2014). For nutritional characterization the following parameters were analyzed: dry matter; ash, crude protein, ethereal extract, neutral detergent fiber, lignin, soluble carbohydrates and insoluble acid detergent protein. No effect of nitrogen fertilization was observed on the variables analyzed in any of the growing years. The nutritional variables were influenced by environmental factors that occurred in the respective experimental periods and the parameters of ruminal degradation kinetics corresponded to the effects in these compounds. In year 2013, higher values were observed for the variables crude protein, ash, insoluble acid detergent protein, soluble CHO and no fibrous carbohydrates, resulting in higher values also for the in vitro gas production kinetics, Vf1 and k2. Nutritional contents in 2014 tended to higher levels of NDF, lignin and total carbohydrates, and higher values for the parameters Vf2 and L. The parameter k1 was not significant in any of the experimental periods evaluated. In 2014 the forage has its nutritive value negatively influenced by the delay in sowing and the periods of water restriction combined with higher temperatures.(AU)

Avaliação da adequação nutricional de cardápios escolares em uma instituição da rede pública de ensino na região Sudeste de Minas Gerais / Evaluation of the nutritional adequacy of school menus in a public school in the Southeast region of Minas Gerais

Este estudo teve como objetivo verificar a adequação dos cardápios da alimentação escolar com a legislação do Programa Nacional de Alimentação Escolar (PNAE), quanto ao valor calórico, quantidade de macronutrientes, vitaminas A e C, cálcio, ferro, magnésio, zinco e fibras dietéticas. Foram avaliados 20 cardápios destinados a uma escola da rede pública que atende às faixas etárias de 6 a 10 anos e 11 a 15 anos, localizada no sudeste de Minas Gerais. Os cardápios analisados não contemplaram todas as recomendações de nutrientes e de energia para ambas faixas etárias, sendo a maior inadequação para o cálcio. Foi verificado que os mesmos cardápios e per capita eram utilizados para ambas faixas etárias, apesar do PNAE determinar necessidades nutricionais diferentes. Desta forma, as necessidades da faixa etária de 6 a 10 anos foi melhor atendida, com maior percentual de cardápios adequados em relação a carboidrato, proteína, lipídios, vitamina C, ferro, magnésio e zinco, quando comparado aos escolares de idade igual ou maior a 11 anos (p<0,05). Com os resultados obtidos, concluímos que ações corretivas em relação ao planejamento de refeições do cardápio da escola avaliada precisam ser realizadas respeitando a diferença entre as faixas etárias.

This study aimed to verify the adequacy of school feeding menus with the legislation of the National School Feeding Program (PNAE), regarding caloric value, quantity of macronutrients, vitamins A and C, calcium, iron, magnesium, zinc and dietary fibers. We evaluated 20 menus destined to a public school that serves the age groups of 6 to 10 years and 11 to 15 years at Southeast of Minas Gerais. The menus analyzed did not contemplate all the nutrient and energy recommendations for both age groups being the greatest inadequacy for calcium. It was verified that the same menus and per capita were used for both age groups although the PNAE determined different nutritional needs. Thus, the needs of the 6 to 10 years old age group were better met, with a higher percentage of adequate menus in relation to carbohydrates, protein, lipids, vitamin C, iron, magnesium and zinc, when compared to children with aged 11 years or older (p<0.05). We conclude that corrective actions in relation to the meal planning of the menu of the school evaluated must be carried out respecting the difference between age groups.

Efeitos da restrição de carboidratos no manejo do diabetes mellitus: revisão de literatura científica / Effects of carbohydrate-restricted diets in the management of diabetes mellitus: review of scientific literature

O objetivo do presente estudo foi avaliar, por meio de uma revisão da literatura, evidências da utilização de dietas com restrição de carboidratos no manejo do diabetes mellitus (DM). As buscas eletrônicas e manuais foram até abril de 2019, e incluíram trabalhos publicados a partir de 2008. Foram excluídos estudos de pesquisas in vitro e em animais, revisões de literatura, livros, monografias, dissertações, teses, estudos de caso e relatos de caso. Os artigos remanescentes foram submetidos à análise de sua qualidade metodológica pela Escala JADAD cinco pontos. Um total de 19 estudos randomizados e com qualidade média de três pontos foram selecionados e analisados quanto aos tipos de dieta utilizadas, adesão, tipo de DM, tempo de intervenção, consumo reportado de carboidratos e resultados observados para os grupos controle e intervenção. Dentre os parâmetros escolhidos para mensurar os possíveis efeitos das dietas, destacaram-se alteração de peso e IMC, Hb1Ac, variabilidade ou controle glicêmico, perfil lipídico e alteração nas doses de insulina ou medicação utilizadas. Em quatro estudos não foram observadas vantagens significativas de uma dieta restrita em carboidratos, e 15 trabalhos relataram melhoras em um ou mais parâmetros. Tais resultados podem representar uma grande vantagem na adoção desta estratégia alimentar no manejo do DM e na prevenção de complicações da doença. Contudo, existem limitações nos estudos, que precisam ter suas hipóteses verificadas no longo prazo, e pesquisas adicionais devem ser realizadas para configurar uma estratégia oficial no controle do DM. (AU)

This study aimed to evaluate, through a literature review, evidence of the use of diets with carbohydrate restriction in the management of diabetes mellitus (DM). Electronic and manual searches were conducted until April 2019, including works published from 2008 onwards. Studies on in vitro and animal research, literature reviews, books, monographs, dissertations, theses, case studies and case reports were excluded. The remaining articles were submitted to analysis of their methodological quality by the five-point JADAD Scale. Nineteen randomized studies with an average quality of three points were selected and analyzed regarding the types of diet used, adherence, type of DM, time of intervention, reported consumption of carbohydrates and results observed for the control and intervention group. Among the parameters chosen to measure the possible effects of diets, weight and BMI changes, Hb1Ac, variability or glycemic control, lipid profile and changes in insulin doses or medication used stood out. In four studies, no significant advantages were observed from a carbohydraterestricted diet, and 15 studies reported improvements in one or more parameters. Such results can represent a great advantage in adopting this dietary strategy in the management of DM and in preventing complications of the disease. However, there are limitations in the studies, which need to have their hypotheses verified in the long term, and additional research must be carried out to configure an official strategy in the control of DM. (AU)

Feed restriction since lactation has reduced anxiety in adult Wistar rats / A restrição alimentar desde a lactação reduziu a ansiedade em ratos Wistar adultos

ABSTRACT Objective To evaluate the effects of macronutrients (protein, carbohydrate and/or lipid) in the diet of young adult (72 days) and adult (182 days) Wistar rats treated ad libitum and with 30% restriction from birth on anxiety in the elevated plus-maze. Methods We used 238 rats treated from birth, composing the groups: Control, Protein, Carbohydrate, Lipid, Carbohydrate and Lipid, Control Restriction, Protein Restriction, Carbohydrate Restriction, Lipid Restriction and Carbohydrate and Lipid Restriction. The animals were weighed at the beginning and at the end of the experiment and tested in the elevated plus-maze. Data were submitted to analysis of variance, followed by the Newman-Keuls Test (p<0.05). Results Among the animals treated ad libitum, the Control, Carbohydrate plus Lipid and Lipid gained more weight than the Carbohydrate and Protein; ad libitum animals gained more weight than those on restriction; among the restrictions, Carbohydrate Restriction rats were the ones that gained less weight. Diet-restricted animals exhibited reduced first-entry latency, greater percentage of entries and time spent, frequency of open arm extremity visits, head dipping (protected and unprotected), and length of stay in the central area of the elevated plus-maze. The animals with 182 days presented greater latency for first entry, reduced frequency of false entries and visits to the ends of the open arms and protected head dipping. Conclusion Food restricted animals, regardless of the macronutrient present in the diet, were less anxious and/or increased their impulsivity and those at 182 days were more anxious and/or with reduced impulsivity.

RESUMO Objetivo Este estudo buscou avaliar os efeitos dos macronutrientes (proteína, carboidrato e/ou lipídeos) na alimentação de ratos Wistar adultos jovens (72 dias) e adultos (182 dias) tratados ad libitum e com restrição a 30% desde o nascimento quanto à ansiedade através do labirinto em cruz elevado. Métodos Foram utilizados 238 ratos tratados desde o nascimento, compondo os grupos Controle, Proteína, Carboidrato, Lipídeos, Carboidrato e Lipídeos, Restrição Controle, Restrição Proteína, Restrição Carboidrato, Restrição Lipídeos e Restrição Carboidrato e Lipídeos. Os animais foram pesados no início e no final do experimento e testados no labirinto em cruz elevado. Os dados foram submetidos à análise de variância, seguida do teste de Newman-Keuls (p<0,05). Resultados Entre os animais tratados ad libitum, os dos grupos Controle, Carboidrato e Lipídeos, e Lipídeos ganharam mais peso do que os Carboidrato e Proteína; os ad libitum ganharam mais peso do que os de restrição; os Restrição Carboidrato foram os que ganharam menos peso. Animais alimentados com restrição de dieta apresentaram menor latência de primeira entrada, maior porcentagem de entradas e de tempo gasto, frequência de visitas às extremidades dos braços abertos, de mergulho (protegido e desprotegido) e tempo de permanência na área central do labirinto em cruz elevado. Os animais com 182 dias demonstraram maior latência para primeira entrada, menor frequência de falsas entradas e visitas às extremidades dos braços abertos e mergulho protegido. Conclusão Os animais em restrição alimentar, independentemente do macronutriente presente na dieta, foram menos ansiosos e/ou mais impulsivos, e os com 182 dias foram mais ansiosos e/ou menos impulsivos.

A high-carbohydrate diet induces greater inflammation than a high-fat diet in mouse skeletal muscle

We previously reported that both the high-carbohydrate diet (HCD) and high-fat diet (HFD) given for two months promote lipid deposition and inflammation in the liver and brain of mice. The results obtained indicate a tissue-specific response to both diets. Herein, we compared the effects of HCD and HFD on fatty acid (FA) composition and inflammation in the gastrocnemius muscle. Male Swiss mice were fed with HCD or HFD for 1 or 2 months. Saturated FA (SFA), monounsaturated FA (MUFA), n-3 polyunsaturated FA (n-3 PUFA), and n-6 PUFA were quantified. The activities of stearoyl-CoA desaturase 1 (SCD-1), Δ-6 desaturase (D6D), elongase 6, and de novo lipogenesis (DNL) were estimated. As for indicators of the inflammatory tissue state, we measured myeloperoxidase (MPO) activity and gene expression of F4/80, tumor necrosis factor-α (TNF-α), interleukin (IL)-4, IL-6, and IL-10. The HCD led to a lower deposition of SFA, MUFA, n-3 PUFA, and n-6 PUFA compared to HFD. However, the HCD increased arachidonic acid levels, SFA/n-3 PUFA ratio, DNL, SCD-1, D6D, and MPO activities, and expression of IL-6, contrasting with the general idea that increased lipid deposition is associated with more intense inflammation. The HCD was more potent to induce skeletal muscle inflammation than the HFD, regardless of the lower lipid accumulation.

Compliance of school food guidelines in primary schools in Mexico City

Childhood obesity is a major public health issue in Mexico. Schools are important settings to promote healthy eating habits. The aim of this study was to assess the extent of compliance with 2010 and 2014 Mexican school food guidelines in six public primary schools in Mexico City. The instruments for this study included semi-structured interviews (n=17) with principals, food vendors and members of the School Vending Committee, focus groups (n=10) with teachers and with parents, observation of six schools' environments, questionnaires applied to 325 schoolchildren from 4th, 5th and 6th grades and their parents, and a food analysis of items sold at school vending. Guidelines' compliance was assessed using all instruments accordingly. It was low in every dimension: 1) Acknowledgment of school food guidelines: None of the participants were familiar with the 2014 guidelines. 2) Healthy environment enhancement: Children lacked free access to safe drinking water. Children had up to five opportunities to eat during school day besides breakfast at home. Most children (67.7%) ate three to four times. 3) Operability of food and beverages sale and consumption: The only training provided to stakeholders was an annual session on hygiene to school food vendors. The majority of food and beverages offered at school vending exceeded energy, sodium, fat and added sugar content as established. Children sold energy-dense foods for school fundraising. Lack of dissemination and acknowledgment of the guidelines, defined roles and policy procedures, as well as training and capacity building for stakeholders impeded school food guidelines'proper implementation(AU)

La obesidad infantil es un problema de salud pública en México. La escuela es un lugar importante para promover hábitos saludables. El propósito del estudio fue evaluar el cumplimiento de los lineamientos escolares de alimentos de 2010 y 2014 en seis escuelas primarias públicas de la Ciudad de México. Los instrumentos incluyen entrevistas semi-estructuradas (n=17) con directores, vendedores de alimentos y miembros del Comité del Establecimiento de Consumo Escolar, grupos focales (n=10) con padres y con profesores, observación del entorno escolar, cuestionarios aplicados a 325 niños de 4º, 5º y 6º grado y a sus padres, y un análisis de los alimentos ofrecidos en la venta escolar. El cumplimiento de los lineamientos fue bajo en cada dimensión: 1) Conocimiento de los lineamientos: Ninguno de los participantes conocía los lineamientos de 2014. 2) Promoción de un ambiente saludable: No se tenía acceso libre a agua simple potable. Los niños tenían cinco oportunidades para comer durante la jornada escolar además del desayuno en casa. La mayoría de los niños (67.7%) comía de 3 a 4 veces. 3) Operatividad de la venta y consumo de alimentos y bebidas: La única capacitación fue una sesión anual de higiene a los vendedores. La mayoría de los alimentos y bebidas excedía los límites establecidos de calorías, sodio, grasa y azúcar añadida. Los niños vendían alimentos densos en energía para recaudar fondos. La falta de difusión de las guías, roles y políticas no definidos y una mínima capacitación obstaculizaron la implementación de los lineamientos(AU)

Impact of high-energy diets on the rumen environment and digital cushion in confined cattle / O impacto de dietas de alto valor energético sobre o ambiente ruminal e o tecido digital em bovinos confinados

This study aimed to identify gross and microscopic changes, caused by high-energy diets, in the rumen environment and hoof of confined beef cattle. The study sample comprised 40 confined heifers (Bos taurus) with no disease history divided into four experimental groups using different diets: Group 1 (D1, control), 48:52 forage:concentrate ratio; Group 2 (D2), 30:70 forage:concentrate ratio; Group 3 (D3), 30:70 forage:concentrate ratio + sucrose; Group 4 (D4), 100% concentrate. All animals underwent clinical examination, assessment of ruminal fluid pH and lameness, and sample collection after slaughter for histopathology of the hoof laminae and digital cushion and ruminal tissue. All dependent variables of the study were compared using the SPSS 20.0 statistical software. The variables that did not show normality (HR, RM, ST, and CRT) were compared with application of the Kruskal-Wallis test followed by the Dunnet's multiple comparison test. All other variables were submitted to analysis of variance (ANOVA) followed by Tukey's test. The different diets had an impact on the rumen environment (p<0.05) of the heifers assessed, with momentary general depression in the first 12 h after sucrose induction (D3), as well as mild clinical signs in D4. The animals in D3 and D4 presented lower motility (p<0.05) and ruminal pH (p<0.01) than those in D1. Of the 40 heifers, 27.5% (n=11) showed gross lesions in the epithelium of ruminal pillars, whereas 22.5% (n=9) of those in D3 and D4 presented these lesions. Sole corium thickness varied between heifers in D3 compared with those in D1 and D2 (p<0.05). Therefore, high-energy diets, as used in this study, alter some clinical parameters and the rumen environment, causing lesions in the rumen mucosa, and of lesser intensity, in the hoof corium and laminae, suggestive of laminitis.(AU)

O objetivo deste trabalho foi identificar alterações macroscópicas e microscópicas provocadas por dietas de alto valor energético no ambiente ruminal e casco de bovinos de corte (Bos taurus) em confinamento. Foram utilizadas 40 novilhas mantidas em confinamento, sendo divididas em 4 grupos experimentais: Grupo D1(controle) - 48% de volumoso e 52% de concentrado; Grupo D2 - 30% de volumoso e 70% de concentrado; Grupo D3 - 30% de volumoso e 70% de concentrado + sacarose; Grupo D4 - 100% de concentrado. Foi realizado exame clínico dos animais, avaliação do pH ruminal, da claudicação, além de coletas de amostras post-mortem para análises histopatológicas da região laminar do casco, coxim digital e do rúmen. Todas as variáveis dependentes do estudo foram comparadas por meio do software estatístico SPSS 20.0. As variáveis sem normalidade (FC, MR, Tc e TPC) foram comparadas pelo teste de Kruskal Wallis, seguido pelo teste de comparação múltipla de Dunnet. Todas demais foram submetidas a análise de variância (ANOVA), seguida pelo teste de Tukey. Foi observado impacto das distintas dietas ao ambiente ruminal (p<0,05). Os grupos D3 e D4 exibiram menor motilidade (p<0,05) e pH ruminal (p<0,01). 27,5% (n=11) dos animais tiveram registros macroscópicos de lesões no epitélio dos pilares ruminais enquanto que os submetidos às dietas 3 e 4 foi observada ocorrência de 22,5% (n=9) de lesões macroscópicas no rúmen. As espessuras do córium solear variaram entre os grupos que receberam a indução de sacarose em relação ao grupo controle e novilhas alimentadas com a dieta 2 (p<0,05). Sendo assim dietas com elevada densidade energética, na condição em que foi empregada, alteraram alguns parâmetros clínicos e o ambiente ruminal, provocando lesões na mucosa do rúmen e de pouca intensidade no córium e tecido laminar, sugestiva de laminite.(AU)

Actitudes de madres de preescolares ante la implementación de la ley de etiquetado nutricional en Chile / Attitudes of mothers of preschools in the implementation of the nutritional labeling law in Chile

Debido a los cambios en los estilos de vida y su reflejo en la prevalencia de malnutrición por exceso a nivel mundial, en Chile (2016) se aprobó la Ley sobre Composición de los Alimentos y su Publicidad. El objetivo de este estudio fue determinar las actitudes alimentarias en madres de preescolares de distinto nivel socioeconómico y el estado nutricional de sus hijos, frente a la publicidad de alimentos y bebidas a través de distintas formas de promoción comercial, así como su actitud ante la Ley 20.606. Se aplicó una encuesta validada, la cual incluye preguntas sobre las etiquetas en los envases de los alimentos. Se realizó un análisis descriptivo de las variables y se determinó si existía diferencias entre la distribución de las respuestas según NSE mediante la prueba Chi2 .Al consultar los lugares en los que han visto publicidad de alimentos, 72% de las madres refiere haberla visto en los supermercados y 48,5% en internet. Sólo 34, 8% refirió recordar algún comercial en particular, y al solicitarles que especificaran el comercial que recordaban, 45,3% nombró alguna bebida azucarada y 13,6% alguna de yogurt. Respecto a los sellos de advertencia presentes en los envases de los alimentos, 87% declaró que les gustaban o les parecían bien. Sólo 43,6% respondió que había dejado de comprar alimentos con dichos sellos. Estos resultados serán útiles para el diseño de intervenciones específicas para este importante grupo, ya que un cambio positivo en sus conductas actuales podría repercutir en la creación de hábitos saludables en sus hijos e hijas(AU)

Due to changes in lifestyles and its reflection on the worldwide prevalence of malnutrition due to excess, in Chile (2016) the Law on Food Composition and its Advertising was approved. The objective of this study was to determine the nutritional attitudes of 509 mothers of preschoolers of different socioeconomic levels and the nutritional status of their children, in front of the advertising of food and beverages through different forms of commercial promotion, as well as their attitude towards Law 20,606. A validated survey was applied, which includes questions about labels on food containers. A descriptive analysis of the variables was carried out to determine if there were differences between the distributions of the responses according to the SEL using the Chi2 test. When consulting the places where they have seen the food advertising, 72% of the mothers reported having seen it in the supermarkets and 48.5% on the internet. Only 34, 8% reported to remembering a particular commercial, and when asked to specify the commercial they remembered, 45.3% named a sugary drink and 13.6% some yogurt. Regarding the warning seals present on food containers, 87% stated that they liked them or they seemed good to them. Only 43.6% answered that they have stopped buying foods with these labels. These results will be useful for the design of specific interventions for this important group, since a positive change in their current behaviors could have an impact on the creation of healthy habits in their children(AU)