Introduction: Quinoa is a pseudocereal containing low glycemic index carbohydrates, dietary fiber, high biological value protein, phytosterols, and n-3 and n-6 fatty acids, which has generated interest in prediabetes nutritional interventions. This randomized (2:1), placebo-controlled, double-blind study evaluated the effects of processed quinoa on body mass index (BMI), glycated hemoglobin (HbA1c), fasting plasma glucose (FPG) and the satiation and fullness (complete) degree in prediabetic patients. Material and method: Thirty patients were randomized (2:1) in two study arms: Kuska Active product (processed quinoa) and placebo (maltodextrin), with an intake period of 28 days. BMI, HbA1c and FPG were determined before starting treatment and at 28-day intake. Satiety and fullness sensation were just assessed by visual analog scale (VAS) at the day 28. ANOVA was performed for repeated measures with two factors to study (within-subject factor: time; intersubject factor: product consumed) to demonstrate the effectiveness of processed quinoa on the study variables. Results: Twenty-nine patients (placebo, n = 10; quinoa, n = 19) completed the study, and the quinoa group shows a significant decrease in BMI (p < 0.05) and HbA1c values (p < 0.001), and an increase in the satiation and fullness (complete) degree (p < 0.001). No significant differences were found in FPG levels from baseline to post-intake period. Conclusions: The results show that processed quinoa intake during 28 days decreases BMI and HbA1c levels, maintains FPG levels, and increases the satiation and fullness (complete) degree in prediabetic patients.

Introducción: la quinua es un pseudocereal que contiene hidratos de carbono de bajo índice glucémico, fibra alimentaria, proteínas de alto valor biológico, fitoesteroles y ácidos grasos n-3 y n-6, y que ha suscitado interés en la intervención nutricional de la prediabetes. Este estudio aleatorizado (2:1), controlado con placebo y doble ciego, evaluó los efectos de la quinua sobre el índice de masa corporal (IMC), hemoglobina glicada (HbA1c), glucemia basal (GB) y el grado de saciedad y plenitud en pacientes prediabéticos. Material y método: se aleatorizaron (2:1) 30 pacientes en dos ramas a estudio: el producto Kuska Active (quinua procesada) y placebo (maltodextrina). El periodo de ingesta fue de 28 días. Antes de iniciar el tratamiento y a los 28 días se determinó el IMC, HbA1c y la GB. La sensación de saciedad y plenitud se evaluó mediante escala visual analógica (EVA). Para demostrar la eficacia de la quinua procesada Kuska Active sobre las variables a estudio se realizó ANOVA para medidas repetidas con dos factores a estudio (factor intrasujeto: tiempo y factor intersujeto: producto consumido). Resultados: finalizaron el estudio un total de 29 pacientes (placebo, n = 10; quinua, n = 19). Se detectó en el grupo quinua procesada una disminución significativa en los valores de IMC (p < 0,05) y HbA1c (p < 0,001) y un aumento en la sensación de saciedad y plenitud (p < 0,001). No se encontraron diferencias significativas en los niveles de GB desde el momento basal hasta el periodo postingesta. Conclusiones: los resultados muestran que la quinua procesada disminuye el IMC y los niveles de HbA1c, mantiene los niveles de GB y aumenta la sensación de saciedad y plenitud en pacientes prediabéticos.

O objetivo deste trabalho foi determinar os marcadores fisiológicos de estresse, a razão entre neutrófilos e linfócitos (N/L) e as concentrações de corticoides em porcas gestantes submetidas a diferentes sistemas de refrigeração. Foram utilizados um sistema de refrigeração com aspersores (SS) e um sistema baseado em painel evaporativo de celulose com ventilador (PS). O SS apresentou maior proporção N/L (1,095) que o PS (0,850). As concentrações de corticoides tiveram alta variabilidade. Os corticoesteroides são indicadores de estresse mais eficientes em curto prazo, enquanto a proporção N/L é um bom indicador de estresse em médio e longo prazo. De acordo com a proporção N/L, as porcas gestantes submetidas ao PS se beneficiaram de maior bem-estar.

The objective of this work was to determine physiological stress markers, neutrophil:lymphocyte ratio (N/L) and corticoid concentrations, in gestating sows under different cooling systems. A sprinkling cooling system (SS) and a system based on fan-assisted evaporative cellulose pad (PS) were used. SS showed higher N/L ratio (1.095) than PS (0.850). Corticoid concentrations showed high variability. Corticosteroids are more efficient short-term stress indicators while N/L ratio is a good medium and long-term stress indicator. According to N/L ratio, gestating sows under PS benefit from a higher level of welfare.