Stress Responsiveness and Emotional Eating Depend on Youngsters' Chronic Stress Level and Overweight

Longitudinal associations of social jetlag with obesity indicators among adolescents - Shanghai adolescent cohort

OBJECTIVE

To explore the longitudinal association between social-jetlag (SJL) and obesity development among adolescents, sex-difference and related modifying factors in the association.

METHODS

Based on Shanghai-Adolescent-Cohort during 2017-2021, a total of 609 students were investigated. In grade 6, 7 and 9, the information on SJL was collected using questionnaires, and anthropometric measures were conducted. The fingernail cortisol and progesterone levels in grade 6 (using LC-MS/MS) and body composition in grade 9 (using Inbody-S10) were measured. By the latent-class-mixture-modeling, two trajectories for SJL (high-level vs. low-level) throughout 4 years were developed. The prospective associations of SJL trajectories and weight/fat gains were analyzed by sex and under different (high/moderate/low) cortisol/progesterone stratifications.

RESULTS

In grades 6-9, 39.00%-44.50 % of adolescents experienced at least 1 h of SJL. Compared with the low-level SJL trajectory, the high-level SJL trajectory was associated with greater differences in body-mass-index Z-scores and waist-to-height ratios across 4 years, higher levels of body-fat-percentage and fat-mass-index in grade 9 (P-values<0.05), and such associations were stronger among girls and under moderate-to-high (vs. low) baseline cortisol and progesterone levels. However, no significant associations among boys were observed.

CONCLUSIONS

High-level SJL in adolescents may be associated with the development of obesity, especially among adolescent girls and under relatively high baseline cortisol and progesterone levels.

Stress during the COVID-19 Pandemic and Emotional Eating Scale Adapted for Children and Adolescents (EES-C) Results in Girls: Polish Adolescents' COVID-19 Experience (PLACE-19) Study

Stress related to the outbreak of the COVID-19 pandemic may have caused substantial changes in eating behaviors, and may have been associated with emotional eating, especially in female individuals. The aim of the present study was to analyze the association between stress perceived during the COVID-19 pandemic and emotional eating in girls, within the third phase of the Polish Adolescents' COVID-19 Experience (PLACE-19) Study. A nationwide sample of 818 Polish female adolescents, aged 15-20, was gathered. The adolescents were recruited to the study based on a random quota sampling procedure. Using a computer-assisted web interview (CAWI) survey, participants filled out the Emotional Eating Scale Adapted for Children and Adolescents (EES-C) to assess the urge to cope with negative emotions by eating, and the Adolescent Stress Questionnaire (ASQ) to assess perceived stress. Additionally, the data concerning body mass, height, as well as body mass change during the COVID-19 pandemic were verified. The groups most susceptible to emotional eating were excessive body mass female adolescents, those who gained weight during the COVID-19 pandemic and those experiencing high stress levels while facing negative emotions. In order to plan effective therapeutic interventions dealing with the issue of emotional eating, both psychological therapy and dietary strategy tailored to the individual should be considered for the indicated susceptible groups.

Point-of-care applicable metabotyping using biofluid-specific electrospun MetaSAMPs directly amenable to ambient LA-REIMS

In recent years, ambient ionization mass spectrometry (AIMS) including laser ablation rapid evaporation IMS, has enabled direct biofluid metabolome analysis. AIMS procedures are, however, still hampered by both analytical, i.e., matrix effects, and practical, i.e., sample transport stability, drawbacks that impede metabolome coverage. In this study, we aimed at developing biofluid-specific metabolome sampling membranes (MetaSAMPs) that offer a directly applicable and stabilizing substrate for AIMS. Customized rectal, salivary, and urinary MetaSAMPs consisting of electrospun (nano)fibrous membranes of blended hydrophilic (polyvinylpyrrolidone and polyacrylonitrile) and lipophilic (polystyrene) polymers supported metabolite absorption, adsorption, and desorption. Moreover, MetaSAMP demonstrated superior metabolome coverage and transport stability compared to crude biofluid analysis and was successfully validated in two pediatric cohorts (MetaBEAse, n = 234 and OPERA, n = 101). By integrating anthropometric and (patho)physiological with MetaSAMP-AIMS metabolome data, we obtained substantial weight-driven predictions and clinical correlations. In conclusion, MetaSAMP holds great clinical application potential for on-the-spot metabolic health stratification.