Developmental origins of health and disease: Impact of paternal nutrition and lifestyle

Sharing the motherload: A review and development of the CO-Parent conceptual model for early childhood obesity prevention

Fathers remain under-represented in early childhood obesity prevention research and interventions, despite growing evidence that paternal biopsychosocial factors and behaviors from pre- and post-conception can influence lifelong offspring health. Informed by a literature review of high-quality evidence, "CO-Parent" (childhood obesity-Parent) is a new conceptual model underpinned by couple interdependence theory and a socioecological framework. Literature was searched for the concepts parental AND weight-related behaviors AND child weight or weight-related behaviors, in databases including MEDLINE, PsycINFO, Global Health, Scopus, and SocINDEX. Prior evidence syntheses were prioritized as source data to inform model development. "CO-Parent" illustrates the interdependent and independent effects of maternal and paternal weight, weight-related behaviors, and well-being, across preconception, pregnancy, postpartum, and the early years on child weight-related behaviors and weight up to age five. The influences of public policy, social, environmental, economic, community, and other complex modifiable mediating factors are included in the model. The "CO-Parent" conceptual model paves the way for a paradigm shift by recognizing fathers as key figures in early childhood obesity prevention initiatives, encouraging them to "share the motherload." It highlights both the independent and interdependent roles fathers play in the epidemiology of obesity starting from preconception. CO-Parent also provides the foundations necessary to guide future theory and research to be more inclusive of fathers to further understanding of the independent and interdependent influences of parents in early childhood obesity prevention.

Childhood cardiometabolic risk factors associated with the perinatal environment of the maternal-paternal-child triad

INTRODUCTION

Clustering of cardiometabolic risk factors in childhood significantly increases the risk of atherosclerotic cardiovascular disease later in life. Identification of modifiable parental factors that contribute to offspring cardiometabolic health is critical for the prevention of disease. The objective was to identify factors associated with child cardiometabolic risk factors at age 5 years.

METHODS

Triads from a longitudinal cohort were recalled at 5 years (n = 68). Dietary intake, anthropometrics, physical activity and serum-based risk factors were collected. Best subset selection, linear and logistic regressions were used to identify triad variables associated with increased risk of cardiometabolic risk factor clustering at age 5 years.

RESULTS

In this cohort, best subset modelling revealed that increased paternal fat mass, serum low-density lipoproteins and triglycerides, maternal dietary added sugar and being female were associated with increased odds of offspring having two or more cardiometabolic risk factors at age 5 years.

CONCLUSIONS

Dietary and exercise interventions prior to conception targeting paternal adiposity and dyslipidaemia as well as maternal dietary habits could decrease children's cardiometabolic risk in later life.

Healthful Eating Behaviors among Couples Contribute to Lower Gestational Weight Gain

Through longitudinal analysis from the GLOWING cohort study, we examined the independent and joint relationships between couples' eating behaviors and gestational weight gain (GWG). Pregnant persons (n = 218) and their non-pregnant partners (n = 157) completed an Eating Inventory. GWG was calculated as gestation weight at 36 weeks minus that at 10 weeks. General linear models were used to examine the relationships between GWG and the pregnant persons, non-pregnant partners, and couples (n = 137; mean of pregnant persons and non-pregnant partners) cognitive restraint (range 0-21), dietary disinhibition (range 0-18), and perceived hunger (range 0-14), with higher scores reflecting poorer eating behaviors. The adjusted models included race/ethnicity, education, income, marital status, and age. The pregnant persons and their non-pregnant partners' cognitive restraint, dietary disinhibition, and perceived hunger scores were 9.8 ± 4.7, 4.8 ± 3.2, and 4.4 ± 2.5 and 6.6 ± 4.6, 5.4 ± 3.4, and 4.7 ± 3.2, respectively. Higher cognitive restraint scores among the pregnant persons and couples were positively associated with GWG (p ≤ 0.04 for both). Stratified analyses revealed this was significant for the pregnant persons with overweight (p ≤ 0.04). The non-pregnant partners' eating behaviors alone were not significantly associated with GWG (p ≥ 0.31 for all). The other explored relationships between GWG and the couples' eating behaviors were insignificant (p ≥ 0.12 for all). Among the pregnant persons and couples, reduced GWG may be achieved with higher levels of restrained eating. Involving non-pregnant partners in programs to optimize GWG may be beneficial.

Developmental origins of health and disease: Impact of paternal nutrition and lifestyle

Most epidemiological and experimental studies have focused on maternal influences on offspring's health. The impact of maternal undernutrition, overnutrition, hypoxia, and stress is linked to adverse offspring outcomes across a range of systems including cardiometabolic, respiratory, endocrine, and reproduction among others. During the past decade, it has become evident that paternal environmental factors are also linked to the development of diseases in offspring. In this article, we aim to outline the current understanding of the impact of male health and environmental exposure on offspring development, health, and disease and explore the mechanisms underlying the paternal programming of offspring health. The available evidence suggests that poor paternal pre-conceptional nutrition and lifestyle, and advanced age can increase the risk of negative outcomes in offspring, via both direct (genetic/epigenetic) and indirect (maternal uterine environment) effects. Beginning at preconception, and during utero and the early life after birth, cells acquire an epigenetic memory of the early exposure which can be influential across the entire lifespan and program a child's health. Potentially not only mothers but also fathers should be advised that maintaining a healthy diet and lifestyle is important to improve offspring health as well as the parental health status. However, the evidence is mostly based on animal studies, and well-designed human studies are urgently needed to verify findings from animal data.