Smoking and salivary microbiota: a cross-sectional analysis of an Italian alpine population.

The oral microbiota plays an important role in the exogenous nitrate reduction pathway and is associated with heart and periodontal disease and cigarette smoking. We describe smoking-related changes in oral microbiota composition and resulting potential metabolic pathway changes that may explain smoking-related changes in disease risk. We analyzed health information and salivary microbiota composition among 1601 Cooperative Health Research in South Tyrol participants collected 2017-2018.

Effects of Nissle 1917 on the Porcine Gut Microbiota, Intestinal Epithelium and Immune System in Early Life.

Early in life and particularly around weaning, piglets are susceptible to infections because of abrupt social, environmental, and dietary changes. Dietary interventions with probiotic bacteria have gained popularity because of the increased awareness of the direct link between diet and health. In this study, piglets received the probiotic strain Nissle 1917 (EcN) or a control treatment perorally from day 2 after birth until 2 weeks post-weaning.