Supplementation of l-arginine in pregnant gilts affects the protein abundance of DNMT1 in 35-day fetuses.

Maternal nutrition is one of the main environmental factors regulating gene expression during fetal development through epigenetic modifications. Some nutrients, such as the amino acid l-arginine, are added to maternal diets to modulate gene expression, improve the reproductive performance of females, and enhance conceptus development. This study investigated the hypothesis that supplementation of pregnant gilts with l-arginine regulates gene expression in conceptuses through epigenetic mechanisms.

Factors associated with body mass index in a cohort of older adults: Structural equation modeling analysis.

Background: Considering the interrelationship between the multiple determinants of nutritional status, analyses are needed to estimate direct and mediated effects between the variables that influence body mass index (BMI) in older adults. We aimed to verify the direct and indirect effects of sociodemographic, behavioral and health conditions on the BMI of older adults in the community.

Methods: This is a longitudinal study based on data collection in 2015 and 2020.

Higher volume resistance training enhances whole-body muscle hypertrophy in postmenopausal and older females: A secondary analysis of systematic review and meta-analysis of randomized clinical trials.

Objective: This study explored the effects of resistance training (RT) volume on muscle hypertrophy in postmenopausal and older females.

Methods: This systematic review searched randomized controlled trials (RCTs) on PubMed/MEDLINE, Scopus, Web of Science, and SciELO. Studies with postmenopausal (age ≥ 45 y) or older females (age ≥ 60 y) that compared RT (whole-body) effects on muscle hypertrophy with a control group (CG) were included.

Effect of resistance training volume on body adiposity, metabolic risk, and inflammation in postmenopausal and older females: Systematic review and meta-analysis of randomized controlled trials.

Purpose: This meta-analytical study aimed to explore the effects of resistance training (RT) volume on body adiposity, metabolic risk, and inflammation in postmenopausal and older females.

Methods: A systematic search was performed for randomized controlled trials in PubMed, Scopus, Web of Science, and SciELO. Randomized controlled trials with postmenopausal and older females that compared RT effects on body adiposity, metabolic risk, and inflammation with a control group (CG) were included.

Contributions of telesimulation to the knowledge of mothers about foreign body airway obstruction.

Objective: To analyze the contributions of telesimulation to the knowledge of mothers faced with foreign body airway obstruction in children under 1 year of age and identify the related factors.

Methods: A quasi-experimental study of the pre- and post-test design carried out between April and September 2021 with 49 mothers from a city in São Paulo. It was organized into four stages: pre-test, telesimulation, immediate and late post-test (60 days later).