Parental Height and Weight Influence Offspring Adiposity at 2 Years; Findings from the ROLO Kids Birth Cohort Study

Parental obesity predisposes to exacerbated metabolic and inflammatory disturbances in childhood obesity within the framework of an altered profile of trace elements

BACKGROUND

Family history of obesity is known to increase the odds of developing childhood obesity in the offspring, but its influence in underlying molecular complications remains unexplored.

SUBJECTS/METHODS

Here, we investigated a population-based cohort comprising children with obesity, with and without parental obesity (PO+, N = 20; PO-, N = 29), and lean healthy children as controls (N = 30), from whom plasma and erythrocyte samples were collected to characterize their multi-elemental profile, inflammatory status, as well as carbohydrate and lipid metabolisms.

RESULTS

We found parental obesity to be associated with unhealthier outcomes in children, as reflected in increased blood insulin levels and reduced insulin sensitivity, unfavorable lipid profile, and pro-inflammatory milieu. This was accompanied by moderate alterations in the content of trace elements, including increased copper-to-zinc ratios and iron deficiency in circulation, as well as metal accumulation within erythrocytes.

CONCLUSIONS

Therefore, we hypothesize that family history of obesity could be an important risk factor in modulating the characteristic multi-elemental alterations behind childhood obesity, which in turn could predispose to boost related comorbidities and metabolic complications.

Parent-Offspring Associations of Ideal Cardiovascular Health Metrics: Findings From the 2014 to 2021 Korea National Health and Nutrition Examination Survey

BACKGROUND

Studies have reported the strength of cardiovascular health (CVH) metrics in parent-offspring relationships. This study aimed to describe the sex-specific associations between CVH in parents and adult offspring.

METHODS AND RESULTS

This study was conducted on the Korea National Health and Nutrition Examination Survey data set, which analyzed trios of mother-father-child, with the child's age from 20 to 39 years. To use the nature of sampling design, survey weighting was applied to all our analyses. Ideal CVH was defined as a cluster of at least 5 ideal individual CVH metrics. We examined the association between parents and their adult offspring regarding clustering CVH and individual CVH metrics through odds ratios and 95% CIs using multiple logistic regression with standard errors adjusted for within-family clustering. The study included 1267 married couples comprising 748 sons and 819 daughters. After adjusting for household income and offspring's sex, age, education, and alcohol consumption, an offspring with either parent attaining a nonideal CVH was 3.52 times more likely to have nonideal CVH. Fathers' nonideal CVH was significantly positively associated with the daughters' nonideal CVH. Maternal nonideal CVH was significantly positively associated with the son's nonideal CVH. When analyzing individual CVH metrics, ideal status in fathers or mothers reduced the likelihood of their offspring having a nonideal status.

CONCLUSIONS

This cross-sectional study showed positive and differential associations of CVH and its components between parents' and offsprings' nonideal status. Our hypothesis-generating results suggest the relevance of using CVH as a composite indicator in family-centered approaches and heart-health interventions.

Including the child's voice in research from a longitudinal birth cohort: insights from the ROLO young person's advisory group

BACKGROUND

Public and patient involvement (PPI) through Young Person's Advisory Groups (YPAG) enables children to provide guidance and insight into research activities. PPI is an important characteristic of research, however, to date, most collaboration has been with adults. Also, few YPAGs have been established within the Irish setting. The ROLO (Randomised cOntrol trial of a LOw glycaemic index diet in pregnancy to prevent macrosomia) YPAG was established in July 2020 to identify the research priorities of a group of healthy Irish children who are part of a longitudinal birth cohort. We aimed to describe this process and the key insights to date.

METHODS

The ROLO study is a longitudinal birth cohort which has followed-up mother-child dyads at multiple timepoints over 10 years. Mothers actively involved in the study were contacted by the research team to invite their ROLO child and older sibling to participate in the YPAG. Meetings were conducted virtually between July 2020 and February 2022. Researchers encouraged free expression of views amongst the children regarding their research interests. Meetings were recorded, transcribed verbatim and analysed for themes based on the topics most frequently discussed and considered important to participants.

RESULTS

In all, seven ROLO children and six older siblings attended four ROLO YPAG meetings. Participants were aged between nine to fifteen years old. Four key themes were identified; study children viewed their identity as part of a longitudinal birth cohort as positive and unique; study children considered the fitness test and body measurements as fun aspects related to their participation; all children considered the impact and use of social media as an important form of communication; and all participants expressed interest in attaining new health-related information and learning opportunities. Children suggested topics such as mental health, future viruses, organ transplants, cancer, and the effect of technology and chemicals on the body were important for future research.

CONCLUSION

The ROLO YPAG offers promising scope for continued collaboration. The themes identified from the meetings contribute to a gap in the literature which will guide future research activities, particularly with children, in view of study design, relevance, and by communication strategies. Trial Details: ISRCTN54392969 registered at www.isrctn.com .