Fecal Microbiota Transplantation from Young-Trained Donors Improves Cognitive Function in Old Mice Through Modulation of the Gut-Brain Axis.

The gut-brain axis is a bidirectional communication pathway that modulates cognitive function. A dysfunctional gut-brain axis has been associated with cognitive impairments during aging. Therefore, we propose evaluating whether modulation of the gut microbiota through fecal microbiota transplantation (FMT) from young-trained donors (YT) to middle-aged or aged mice could enhance brain function and cognition in old age.

Factors driving misinformation production and user engagement with toothache content on Facebook.

This study characterized toothache-related Portuguese Facebook posts, identifying factors driving misinformation production and user engagement. Investigators qualitatively analyzed 500 posts published between August 2018 and August 2022, screening on language and theme. Posts were selected using CrowdTangle and assessed for motivation, author profile, content, sentiment, facticity, and format.

Analysis of Google users' interests in information about pacifiers: an ecological digital study.

Purpose: To determine the interests of Google users from different countries about pacifier-related information over time, through a quantitative and qualitative analysis.

Methods: This infodemiology longitudinal retrospective ecological study investigated pacifier-related computational metadata from 22 countries using Google Trends platform. Initially, Relative Search Volume (RSV) time series data and their respective main queries were collected employing the topic "pacifier - subject" as the search strategy from January 2004 to June 2024, considering all categories.

A geometric approach to the impact of immigration of people infected with communicable diseases.

We construct a set of new epidemiological thresholds to address the general problem of spreading and containment of a transmissible disease with influx of infected individuals (i.e., when the classic R is no longer meaningful).

Association between personality traits and symptoms of depression and anxiety via emotional regulation and distress tolerance.

The Big Five personality traits have shown associations with symptoms of depression and anxiety among college students, but it is unclear which factors mediate these relationships. Past research suggests that psychological distress is closely related to difficulties in affect regulation (e.g.