Impact of Gut Microbiota on Aging and Frailty: A Narrative Review of the Literature.

Aging is a natural, complex, and individual process that focuses on the progressive decay of the body and a decrease in cell function that begins in approximately the sixth decade of life and ends with death. Current scientific evidence shows that the aging process is mostly related to genetic load and varies because of the environment. Therefore, aging can be adjusted through the intervention of factors that control homeostasis in genetic, biochemical, and immunological processes, including those involving the gut microbiota.

[Nutritional status and food intake frequency in children with autism spectrum disorder].

Introduction: children with autism spectrum disorder (ASD) commonly present food hyperselectivity, which could lead to malnutrition. Furthermore, they are usually observed with eutrophic development, and a tendency to overweight or obesity, which might occur because of food preferences. Objectives: to evaluate nutritional status based on anthropometric measurements, and to determine the food intake frequency of Mexican children with ASD.

Factors associated with the use of Dental Health Services by Mexican Schoolchildren to receive Professionally Applied Topical Fluoride.

Objective: To identify the prevalence of and factors associated with the use of dental health services to receive professionally applied topical fluoride (DHSU-PATF) in the 12 months prior to the study among Mexican schoolchildren aged 6 to 12 years.

Methods: A cross-sectional study was performed in 1,404 schoolchildren selected randomly from 15 public schools in the city of Pachuca, Mexico. Questionnaires were distributed to determine the demographic, socioeconomic, and behavioral variables.