Etiquetado y rotulación de los alimentos en la prevención del sobrepeso y la obesidad: una revisión sistemática Food labeling and the prevention of overweight and obesity: a systematic review

Revisión de los artículos sobre el etiquetado o la rotulación en la prevención de la obesidad y el sobrepeso. Estudio, mediante técnica sistemática, de los trabajos recuperados mediante revisión bibliográfica. Bases de datos consultadas: MEDLINE, EMBASE, Web of Knowledge, Cochrane Library Plus, Food Science and Technology Abstracts, LILACS y CINAHL. Descriptores DeCS/MeSH: obesity y food labeling. 207 artículos recuperados, mediante los criterios de inclusión y exclusión, se seleccionaron 14: 11 sobre etiquetado y la rotulación en el consumo final del producto; 2 sobre establecimientos de comida rápida. Uno sobre atributos sensoriales en contraste con recomendaciones saludables y 2 realizaron un seguimiento de las intervenciones. El etiquetado y la rotulación tienen efecto positivo en el consumo final de los alimentos, suceso no observado en restaurantes de comida rápida. Los atributos sensoriales fueron más efectivos que las recomendaciones recogidas en el etiquetado. El seguimiento de las actuaciones confirmó el efecto a largo plazo de las intervenciones estudiadas.<br>This article reports on a systematic review of articles on food labeling and the prevention of obesity and overweight, in the MEDLINE, EMBASE, Web of Knowledge, Cochrane Library Plus, Food Science and Technology Abstracts, LILACS, and CINAHL databases. The DeCS/MeSH descriptors were obesity and food labeling. 207 articles were retrieved. Using inclusion and exclusion criteria, 14 articles were selected: 11 were on food labeling and its impact on final food product consumption; 2 were on fast food establishments; 1 on sensory attributes as compared to health recommendations; and 2 on follow-up of interventions. Labeling has a positive effect on final food product consumption, in contrast with fast food restaurants. Sensory attributes were more effective than recommendations on the labels. Follow-up of interventions confirmed the long-term effect of the target interventions

Tether and trap: Regulation of membrane-raft dynamics by actin-binding proteins

The existence of plasma-membrane-raft microdomains has been widely debated during the past few years. However, it is clear that during lymphocyte stimulation a lipid-based reorganization occurs at the plasma membrane, with markers of the membrane rafts being selectively recruited to key active regions of the cell. Recent reports have demonstrated that membrane-raft dynamics are controlled by proteins that are linked to the actin cytoskeleton and have suggested a new model for the plasma membrane based on protein-lipid interactions. This new and dynamic view of the plasma membrane may improve our understanding of the complex process leading to cell polarization during lymphocyte migration and activation