Efecto del consumo del probiótico Lactobacillus fermentum UCO-979C en peso, masa grasa, masa magra, circunferencia de la cintura y hábitos alimenticios / Effect of the consumption of the probiotic lactobacillus fermentum uco-979c on weight, fat mass, lean mass, waist circumference and eating habits

Fundamentos: Varios estudios evalúan si el consumo de probióticos puede modificar el peso corporal. La cepa Lactobacillus fermentum UCO-979C es una cepa de origen gástrico y éste constituye el primer estudio en humanos. El objetivo fue evaluar el efecto del consumo de la cepa L. fermentum UCO979C en el peso, el porcentaje de masa grasa, masa magra, circunferencia de la cintura y hábitos alimenticios de un grupo de adultos jóvenes de la Universidad de Concepción, Chile.Métodos: Ciento cuatro estudiantes universitarios se dividieron en dos grupos. El grupo intervenido (n = 56) consumió una gelatina que contenía la cepa probiótica, mientras que elgrupo control (n = 46) consumió una gelatina placebo. Los hábitos alimenticios, la composición corporal se evaluaron al comienzo y al final de la intervención. Resultados: No se observaron diferencias significativas después de 12 semanas entre el grupo control y el grupo intervenido en peso, porcentaje de masa grasa, masa magra y circunferencia de la cintura, pero se observaron diferencias significativas en los hábitos alimenticios. A la semana 12 el grupo intervenido mostró un aumento muy significativo de la masa magra y un mayor consumo de productos lácteos y frutas respecto al inicio del estudio.Conclusiones: El consumo del probiótico no modificó ni el peso ni la composición corporal, pero sí modificó los hábitosalimenticios, aumentando el consumo del desayuno, frutas y productos lácteos. (AU)

Background: Several studies evaluate whether the consumption of probiotics can modify body weight. The Lactobacillus fermentum UCO-979C strain is a strain of gastric origin and this constitutes the first study in humans. Theobjective was to evaluate the effect of the consumption of the L. fermentum UCO-979C strain on weight, percentage of fat mass, lean mass, waist circumference and eatinghabits of a group of young adults from the University of Concepción, Chile.Methods: One hundred and four university students were divided into two groups. The intervened group (n = 56) consumed a gelatin containing the probiotic strain, while thecontrol group (n = 46) consumed a placebo gelatin. Eating habits and body composition were evaluated at the beginning and at the end of the intervention. Results: No significant differences were observed after 12weeks of intervention in weight, percentage of fat mass, lean mass, and waist circumference, but significant differences were observed in eating habits. The intra-group analysis showed a very significant increase in lean mass anda higher consumption of dairy products and fruits in the group that received the probiotic.Conclusions: The consumption of the probiotic did not modify neither the weight nor the body composition, but it did modify the eating habits, increasing the consumption of breakfast, fruits and dairy products. (AU)

Capacidad predictiva de los índices antropométricos en la detección de Síndrome Metabólico en adultos chilenos / Predictive capacity of anthropometric indeces in the detection of metabolic syndrome in Chilean adults

La presencia de componentes cardiometabólicos condiciona un aumento del riesgo en la aparición de síndrome metabólico y las patologías asociadas. La insulinoresistencia, es probablemente, el mecanismo subyacente a las complicaciones derivadas de este síndrome, donde la acumulación adiposa abdominal se presenta como característica frecuente. El objetivo de este estudio fue determinar la capacidad predictiva de los índices antropométricos estimadores de distribución adiposa central versus el índice de masa corporal en la detección de síndrome metabólico en adultos chilenos. Se realizó un estudio de tipo descriptivo de corte transversal con 229 adultos, cuyos datos fueron obtenidos a través de una fuente de datos secundaria. Estos fueron analizados a través de correlación de Pearson y curva operador receptor estableciendo área bajo la curva. Los resultados mostraron una prevalencia de 58,3% de síndrome metabólico según NCEP-ATP III, donde los índices antropométricos como el índice cintura estatura (0,746), circunferencia de cintura (0,735) e índice de masa corporal (0,722) no presentaron diferencias significativas en la detección de síndrome metabólico. Se estableció mayor correlación de los factores cardiometabólicos con el índice cintura estatura y circunferencia cintura.

The presence of cardiometabolic components conditions the risk increase in the appearance of the metabolic syndrome and the associated pathologies. The insulin resistance is probably the subjacent mechanism to the complications derived from this syndrome, where the abdominal adipose accumulation is a common and frequent characteristic. The purpose of this study was to determine the predictive capability of the anthropometric estimating central adipose distribution indexes against the body mass index in the detection of the metabolic syndrome in Chilean adults. A descriptive crosssectional study was conducted on 229 adults, information obtained through a secondary database. There were analyzed through a Pearson correlation and receiver operating curves determining the area under the curve. The results showed the predominance of 58.3 % of the metabolic syndrome prevailed according to NCEP-ATP III, where the anthropometric indexes such as waist height index (0.746), waist circumference (0.735) and body mass index (0.722) did not show significant differences in the detection of the metabolic syndrome components. It did show a higher correlation of these cardio-metabolic factors with the waist height index and waist circumference.

[Predictive capacity of anthropometric indeces in the detection of metabolic syndrome in Chilian adults]. / Capacidad predictiva de los índices antropométricos en la detecci6n de Sindrome Metabólico en adultos chilenos.

The presence of cardiometabolic components conditions the risk increase in the appearance of the metabolic syndrome and the associated pathologies. The insulin resistance is probably the subjacent mechanism to the complications derived from this syndrome, where the abdominal adipose accumulation is a common and f equent characteristic. The purpose of this study was to determine the predictive capability of the anthropometric estimating central adipose distribution indexes against the body mass index in the detection of the metabolic syndrome in Chilean adults. A descriptive crosssectional study was conducted on 229 adults, information obtained through a secondary database. There were analyzed through a Pearson correlation and receiver operating curves determining the area. under the curve. The results showed the predominance of 58.3% of the metabolic syndrome prevailed according to NCEP-ATP III, where the anthropometric indexes such as waist height index (0.746), waist circumference (0.735) and body mass index (0.722) didnot-show significant differences in the detection of the metabolic syndrome components. It did show a higher correlation of these cardiometabolic. factors with the waist height index and waist circumference.