Effects of school closure on lifestyle behaviours and health outcomes in children during the COVID-19 pandemic in Chile: A time-matched analysis.

Background: The COVID-19 pandemic led to school closures, potentially impairing children's behaviours and health. We aimed to explore the effects of school closure on lifestyle behaviours (dietary habits, physical activity) and health outcomes (adiposity, fitness, self-esteem, self-concept) in children.

Methods: We measured 247 children before school closure (October-November 2019) and after school reopening (October-November 2021) (COVID-19 group).

[Calorie and macronutrient intake during the first six months after bariatric surgery].

Background: Bariatric surgery (BS) is the most effective procedure in the management of obesity, achieving a significant decrease in energy intake.

Aim: To measure calorie and macronutrient intake in patients subjected to gastric bypass (GBP) or sleeve gastrectomy (SG).

Material And Methods: We studied 53 patients subjected to SG and 27 subjected to GBP, who were in the first, second or sixth postoperative month.

[Changes in body composition in patients following bariatric surgery: gastric bypass and sleeve gastrectomy].

Introduction: among the surgical techniques that promote greater weight loss are Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG). These procedures generate changes in muscle mass (MM) and fat mass (FM). Objective: the aim of this study was to determine changes in body composition in patients undergoing RYGB and SG in a period of one-year after surgery.

Dairy intake in relation to breast and pubertal development in Chilean girls.

Frequent dairy consumption in childhood has been related to higher growth-hormone concentrations that may affect mammary gland and pubertal development. We evaluated the relation of dairy intake to breast composition at Tanner stage 4 and age at menarche. A total of 515 Chilean girls are included in the Growth and Obesity Cohort Study.

[Egg: concepts, analyses and controversies in the human health].

Cholesterol rich-foods consumption has been related as a causing factor for heart ischemic disease. Because the high cholesterol content of the yolk, the egg consumption has been decreased in spite of it, egg is a complete food, rich in many nutrients, and economically accessible. The cholesterol content in egg yolk has also important properties for the human organism.