Barriers to implementing good nutrition in pregnancy and early childhood: Creating equitable national solutions

Exposure to deleterious stressors in early life, such as poor nutrition, underlies most adult-onset chronic diseases. As rates of chronic disease continue to climb in the United States, a focus on good nutrition before and during pregnancy, lactation, and early childhood provides a potential opportunity to reverse this trend. This report provides an overview of nutrition investigations in pregnancy and early childhood and addresses racial disparities and health outcomes, current national guidelines, and barriers to achieving adequate nutrition in pregnant individuals and children. Current national policies and community interventions to improve nutrition, as well as the current state of nutrition education among healthcare professionals and students, are discussed. Major gaps in knowledge and implementation of nutrition practices during pregnancy and early childhood were identified and action goals were constructed. The action goals are intended to guide the development and implementation of critical nutritional strategies that bridge these gaps. Such goals create a national blueprint for improving the health of mothers and children by promoting long-term developmental outcomes that improve the overall health of the US population.

A Comprehensive Review on Asthma Challenges in Pregnancy: Exploring First Trimester Exacerbations and the Spectrum of Congenital Anomalies

This comprehensive review delves into the intricate relationship between asthma and pregnancy, specifically focusing on the challenges encountered in the first trimester and the ensuing impact on maternal and fetal health. Examining physiological changes during pregnancy reveals the dynamic interplay influencing respiratory function and immune responses. Key findings underscore the vulnerability to asthma exacerbations in the critical first trimester, emphasizing the potential risks to both maternal and fetal well-being. Maternal and fetal outcomes are discussed, emphasizing the associations between poorly controlled asthma and adverse perinatal outcomes. Implications for clinical practice highlight the importance of preconception care, continuous monitoring, and collaborative efforts between obstetricians and pulmonologists. Patient education emerges as a fundamental aspect to empower pregnant women in managing their condition. The conclusion emphasizes the imperative for comprehensive care, advocating for individualized treatment plans, multidisciplinary collaboration, and public health initiatives. By adopting this holistic approach, healthcare providers can navigate the complexities of asthma during pregnancy, ultimately ensuring the optimal health of both the expectant mother and her developing fetus.

Housing instability: Exploring socioecological influences on the health of birthing people

STUDY AIM

To describe how socioecological influences of housing instability affect pregnancy health among birthing and postpartum people.

DESIGN

We used the socioecological framework to guide this exploratory descriptive study using semi-structured, in-depth interviews.

METHODS

We purposively recruited birthing people in the southern mid-Atlantic region. Seventeen one-time, semi-structured interviews were conducted between February 2020 and December 2021 with English-speaking unstably housed participants ≥18 years old, currently pregnant, or recently postpartum. Qualitative and quantitative content approaches were used to analyse transcribed interviews. Dedoose software was used to identify code patterns and refine the codebook until group consensus. The team examined code patterns, explored meaning in text and codified code-generated categories to describe experiences.

RESULTS

Majority (82.4%) of participants were African Americans between 22 and 41 years, and most were postpartum (76.5%). Participants described multiple forms of housing instability, reasons for losing housing, challenges with finding housing and strategies for finding housing. Participants did not describe housing instability as a barrier to receiving prenatal care. Building and sustaining individual relationships and social support were prominent factors affecting their housing challenges. Participants also reported a lack of obstetric provider inquiry about housing status during pregnancy. Many reported that challenges with housing triggered mental health issues, especially depression.

CONCLUSION

Nurses and other obstetric providers are key points of contact in the prenatal care setting for assessing housing stability. Additionally, refining social structures and funding support services within communities and prenatal health systems should be a strategy for future programme and policy planning improvement.

IMPACT

This study highlights critical areas for consideration when addressing social determinants for birthing people and reinforces the need for more comprehensive assessment in the prenatal setting.

PATIENT OR PUBLIC CONTRIBUTION

Members of the public participated in this study as key informants for study interviews.

The Effects of Latitude and Temperate Weather on Vitamin D Deficiency and Women's Reproductive Health: A Scoping Review

INTRODUCTION

We conducted a scoping review to analyze the effects and implications of vitamin D deficiency on female reproductive health during the last decade, considering temperate planetary zones and climate change impacts.

METHODS

We used a qualitative methodology for a panoramic database review of PubMed, Web of Science, and Scopus covering articles from the last decade focused on populations living at latitudes higher than 40° N and 40° S. As descriptors, we used the phrases climate change, cholecalciferol or vitamin d3, pregnancy, and woman health and the Boolean operators AND and OR. We excluded letters to the editor, reviews, protocols, and clinical trials without human participants, as well as duplicate articles.

RESULTS

We included 35 studies in English, the majority of which were from North America or Europe. No studies were found from the Southern Hemisphere or having any direct relation with climate change, although studies demonstrated that latitude and environmental factors affected vitamin D deficiency, which had an impact on pregnant women and their children. Supplementation guidelines were not well developed, and there was a lack of studies among at-risk groups of women (eg, darker skin, higher latitudes, immigrants) across the life span.

DISCUSSION

Vitamin D deficiency is a global environmental problem that affects female reproductive health and depends on multiple environmental factors and human behavior. Therefore, we recommend consideration of environmental and sociocultural factors in public policy and clinical research and more research on the effectiveness of supplementation and fortification strategies. Health care professionals working in reproductive health need to generate actions for detection of, education on, and prevention of vitamin D deficiency among women across their life spans, considering the multicausality of the phenomenon, which includes environmental and climate factors in population health.

Physical activity and individual plasma phospholipid SFAs in pregnancy: a longitudinal study in a multiracial/multiethnic cohort in the United States

BACKGROUND

Circulating individual SFAs in pregnant females are critical for maternal and fetal health. However, research on identifying their modifiable factors is limited.

OBJECTIVES

We aimed to examine the associations of total physical activity (PA) and types of PA with circulating individual SFAs during pregnancy in a multiracial/multiethnic cohort of pregnant females in the United States.

METHODS

The study included participants in a nested case-control study (n = 321) from the Eunice Kennedy Shriver NICHD Fetal Growth Studies-Singleton Cohort. Sampling weights were applied, so the results represented the entire Fetal Growth Cohort. Plasma phospholipid SFAs were measured at 4 visits [10-14 (visit 1), 15-26 (visit 2), 23-31 (visit 3), and 33-39 (visit 4) weeks of gestation] throughout pregnancy. PA of the previous year at visit 1 and since the previous visit at the subsequent visits was assessed using the validated Pregnancy PA Questionnaire. Time-specific and longitudinal associations were examined using multivariable linear and generalized estimating equation models.

RESULTS

Total PA (metabolic equivalent of task-h/wk) was positively associated with circulating heptadecanoic acid (17:0) at visit 1 (β × 103: 0.07; 95% CI: 0.02, 0.11) and pentadecanoic acid (15:0) at visit 3 (β × 103: 0.09; 95% CI: 0.03, 0.14) independent of sociodemographic, reproductive, pregnancy, and dietary factors. Across the 4 visits, the positive associations with total PA were consistent for pentadecanoic acid (β × 103: 0.06; 95% CI: 0.02, 0.10) and heptadecanoic acid (β × 103: 0.10; 95% CI: 0.06, 0.14). Out of the 4 PA types (i.e., sports/exercise, household/caregiving, transportation, and occupational PA) considered, the magnitude of positive associations was the largest for sports/exercise PA.

CONCLUSIONS

Our findings suggest that maternal PA is positively associated with circulating pentadecanoic and heptadecanoic acids. The findings warrant confirmation by future studies.This trial was registered at clinicaltrials.gov as NCT00912132.

A review of ex vivo placental perfusion models: an underutilized but promising method to study maternal-fetal interactions

Studying the placenta can provide information about the mechanistic pathways of pregnancy disease. However, analyzing placental tissues and manipulating placental function in real-time during pregnancy is not feasible. The ex vivo placental perfusion model allows observing important aspects of the physiology and pathology of the placenta, while maintaining its viability and functional integrity, and without causing harm to mother or fetus. In this review, we describe and compare setups for this technically complex model and summarize outcomes from various published studies. We hope that our review will encourage wider use of ex vivo placental perfusion, which in turn would generate more knowledge to improve pregnancy outcomes.

Recreational physical activity before and during pregnancy and placental DNA methylation-an epigenome-wide association study

BACKGROUND

Physical activity (PA) prior to and during pregnancy may have intergenerational effects on offspring health through placental epigenetic modifications. We are unaware of epidemiologic studies on longitudinal PA and placental DNA methylation.

OBJECTIVES

We evaluated the association between PA before and during pregnancy and placental DNA methylation.

METHODS

Placental tissues were obtained at delivery and methylation was measured using HumanMethylation450 Beadchips for participants in the Eunice Kennedy Shriver National Institute of Child Health and Human Development Fetal Growth Studies-Singletons among 298 participants. Using the Pregnancy Physical Activity Questionnaire, women recalled periconception PA (past 12 mo) at 8-13 wk of gestation and PA since last visit at 4 follow-up visits at 16-22, 24-29, 30-33, and 34-37 wk. We conducted linear regression for associations of PA at each visit with methylation controlling for false discovery rate (FDR). Top 100 CpGs were queried for enrichment of functional pathways using Ingenuity Pathway Analysis.

RESULTS

Periconception PA was significantly associated with 1 CpG site. PA since last visit for visits 1-4 was associated with 2, 2, 8, and 0 CpGs (log fold changes ranging from -0.0319 to 0.0080, after controlling for FDR). The largest change in methylation occurred at a site in TIMP2 , which is known to encode a protein critical for vasodilation, placentation, and uterine expansion during pregnancy (log fold change: -0.05; 95% CI: -0.06, -0.03 per metabolic equivalent of task-h/wk at 30-33 wk). Most significantly enriched pathways include cardiac hypertrophy signaling, B-cell receptor signaling, and netrin signaling. Significant CpGs and enriched pathways varied by visit.

CONCLUSIONS

Recreational PA in the year prior and during pregnancy was associated with placental DNA methylation. The associated CpG sites varied based on timing of PA. If replicated, the findings may inform the mechanisms underlying the impacts of PA on placenta health. This study was registered at clinicaltrials.gov as NCT00912132.

Influence of Socio-Economic Factors and Region of Birth on the Risk of Preeclampsia in Sweden

Objectives: To investigate the association between socio-economic factors and the risk of preeclampsia in Sweden, specifically investigating if this relationship is confounded by maternal region of birth. Study design: All singleton births between 1999 and 2009 in an ethnically diverse area in southern Sweden, totaling 46,618 pregnancies, were included in this study. The data on maternal pregnancy outcomes were retrieved from a regional birth register and socio-economic variables from Statistics Sweden. The risk ratios for preeclampsia were calculated for educational level and household disposable income, adjusting for maternal region of birth, maternal age, body mass index, parity, and smoking. Results: Low income levels were associated with a higher risk for preeclampsia, adjusted risk ratio (aRR) = 1.25 (95% confidence interval [CI]: 0.99, 1.59) and aRR = 1.36 (95% CI: 1.10, 1.68) for the two lowest quintiles, respectively, compared to the highest. There was an educational gradient in preeclampsia risk, although not all categories reached statistical significance: aRR = 1.16, (95% CI: 0.89–1.50) for low educational attainment and aRR = 1.23 (95% CI: 1.08, 1.41) for intermediate educational attainment compared to women with highest education. The socio-economic gradient remained after adjusting for region of birth. There was a lower risk for preeclampsia for women born in Asia, aRR = 0.60 (95% CI: 0.47, 0.75), regardless of socio-economic position. Conclusion: An increased risk for preeclampsia was seen for women with measures of lower socio-economic position, even in a universal, government-funded healthcare setting. The relationship was not explained by region of birth, indicating that the excess risk is not due to ethnically differential genetic pre-disposition but rather due to modifiable factors.

Consequences of Paternal Nutrition on Offspring Health and Disease

It is well established that the maternal diet during the periconceptional period affects the progeny’s health. A growing body of evidence suggests that the paternal diet also influences disease onset in offspring. For many years, sperm was considered only to contribute half of the progeny’s genome. It now appears that it also plays a crucial role in health and disease in offspring’s adult life. The nutritional status and environmental exposure of fathers during their childhood and/or the periconceptional period have significant transgenerational consequences. This review aims to describe the effects of various human and rodent paternal feeding patterns on progeny’s metabolism and health, including fasting or intermittent fasting, low-protein and folic acid deficient food, and overnutrition in high-fat and high-sugar diets. The impact on pregnancy outcome, metabolic pathways, and chronic disease onset will be described. The biological and epigenetic mechanisms underlying the transmission from fathers to their progeny will be discussed. All these data provide evidence of the impact of paternal nutrition on progeny health which could lead to preventive diet recommendations for future fathers.

Prenatal Exposure to Favorable Social and Environmental Neighborhood Conditions Is Associated with Healthy Pregnancy and Infant Outcomes

Neighborhood and individual level risks commonly co-occur for pregnant women and may cumulatively contribute to birth outcomes. Moreover, the relationship between favorable social and environmental neighborhood conditions and perinatal outcomes has been understudied. This study considered the accumulated impact of prenatal exposure to positive neighborhood social, environmental, and educational conditions in relation to maternal health during pregnancy and birth size outcomes. In a prospective study of a multi-ethnic and socioeconomically diverse cohort (n = 239) of pregnant women and their infants, neighborhoods were characterized by the Child Opportunity Index (COI), a census-tract composite indicator representing favorable social, environmental, and educational community conditions. Adjusted generalized estimating equations showed that favorable neighborhood conditions promoted the growth of longer and heavier infant bodies, and reduced the risk of intrauterine growth restriction. The associations were stronger for female versus male infants, though not significantly different. Moreover, COI was associated with better maternal mental health and diet during pregnancy; diet significantly mediated the association between COI and birth size outcomes. This study underscores the importance of considering the accumulated benefit of neighborhood assets for maternal and infant health. Interventions that capitalizes on the full range of contextual assets in which mothers live may promote pregnancy health and fetal growth.

Facilitators and barriers to substance-free pregnancies in high-income countries: A meta-synthesis of qualitative research

BACKGROUND

Previous studies have associated substance use (alcohol, illicit drugs and smoking) to negative pregnancy outcomes, including higher risk of stillbirth.

AIM

This study aims to identify facilitators and barriers reported by women to remain substance free during pregnancy.

METHODS

A systematic search was conducted in six databases from inception to March 2019 and updated in November 2020. Qualitative studies involving pregnant or post-partum women, from high-income countries, examining women's experiences of substance use during pregnancy were eligible. Meta-ethnography was used to facilitate this meta-synthesis.

FINDINGS

Twenty-two studies were included for analysis. Internal barriers included the perceived emotional and social benefits of using substances such as stress coping, and the associated feelings of shame and guilt. Finding insensitive professionals, the lack of information and discussion about risks, and lack of social support were identified as external barriers. Furthermore, the social stigma and fear of prosecution associated with substance use led some women to conceal their use. Facilitators included awareness of the health risks of substance use, having intrinsic incentives and finding support in family, friends and professionals.

DISCUSSION

Perceived benefits, knowledge, experiences in health care settings, and social factors all play important roles in women's behaviours. These factors can co-occur and must be considered together to be able to understand the complexity of prenatal substance use.

CONCLUSION

Increased clinical and community awareness of the modifiable risk factors associated with substance use during pregnancy presented in this study, is necessary to inform future prevention efforts.

Investigating the relationship between cognitive emotion regulation and the health of pregnant women

INTRODUCTION

Mental health is one of the focuses of the health assessment of different communities and plays an important role in ensuring the dynamism and efficiency of each community. Pregnancy is one of the most sensitive periods, in which mental health is effective. The mental health of individuals is the result of the interaction of cognitive-emotional ordering strategies and proper evaluation of stressful situations. The aim of this study was to determine the relationship between cognitive emotion regulation and the health of pregnant women.

MATERIALS AND METHODS

This is a descriptive and cross-sectional study that was carried out on 200 pregnant women who were covered by Navab, Amir Hamzeh and Motahari centers in Isfahan in 2017 by available sampling method. The instrument was the Beck Depression Inventory, Goldenberg Health, and Emotional Cognitive Order. Finally, the data were analyzed using the SPSS software.

RESULTS

The mean age of pregnant mothers participating in the study was 26.66 ± 6.09 years. The results of data analysis showed a significant positive correlation in relation to blaming others and disaster with physical health, blaming others and rumination and catastrophes with anxiety, disaster with social health, blaming others and rumination and catastrophes with depression, and also blaming others and rumination, catastrophizing, and positive re-focusing have a significant positive correlation with total health score.

CONCLUSION

Regarding the relationship between mental health and cognitive dysmenorrhea during pregnancy, pregnant women carers can help with pregnant women by conducting educational programs on health promotion and strive to maintain mental health and improve their quality of life. Consequently, they will ensure the mental health of their future children.

Pre-pregnancy and early pregnancy dietary behavior in relation to maternal and newborn health in the Norwegian Fit for Delivery study - a post hoc observational analysis

Background

Randomized controlled trials targeting maternal dietary and physical activity behaviors during pregnancy have generally failed to accomplish reductions in the prevalence of adverse maternal and neonatal outcomes. Interventions carried out during pregnancy could thus be missing the mark in maximizing intervention health benefit.

Objective

To investigate whether pre-pregnancy and early pregnancy dietary behavior as reported at inclusion into the Norwegian Fit for Delivery (NFFD) trial was associated with maternal and neonatal outcomes irrespective of subsequent randomization assignment.

Design

The study is a post-hoc observational analysis of data from a randomized controlled lifestyle intervention. We constructed two diet scores from participant responses to a 43-item questionnaire that addressed dietary behavior in retrospect (pre-pregnancy diet score) and dietary behavior at inclusion (early pregnancy diet score), respectively. The diet scores ranged from 0 to 10, with higher score reflecting healthier dietary behavior. Associations between diet scores and maternal and neonatal health outcomes were estimated in multivariate logistic regression models.

Results

A total of 591 women were eligible for analysis. A one-point increase in pre-pregnancy diet score was associated with lower odds of excessive gestational weight gain (GWG) (odds ratio [OR]_adj: 0.92; 95% confidence interval [CI]: 0.84-1.00, p = 0.050), preterm delivery (OR_adj: 0.81; 95% CI: 0.68-0.97, p = 0.019), and birthweight ≥ 4,000 g (OR_adj: 0.88; 95% CI: 0.78-0.99, p = 0.038). A one-point increase in early pregnancy diet score was associated with lower odds of excessive GWG (OR_adj: 0.88; 95% CI: 0.79-0.97, p = 0.009), preterm delivery (OR_adj: 0.82; 95% CI: 0.67-0.99, p = 0.038), and preeclampsia (OR_adj: 0.78; 95% CI: 0.62-0.99, p = 0.038).

Discussion

Higher diet score either pre-pregnancy or in early pregnancy was protectively associated with excessive GWG and preterm delivery, whereas the protective association with high birthweight was confined to pre-pregnancy diet and with preeclampsia to early pregnancy diet.

Conclusions

Both pre-pregnancy and early pregnancy dietary behavior was associated with important maternal and neonatal health outcomes in the NFFD dataset.

Female farmworkers' perceptions of heat-related illness and pregnancy health

Although agricultural workers have elevated risks of heat-related illnesses (HRI), pregnant farmworkers exposed to extreme heat face additional health risk, including poor pregnancy health and birth outcomes. Qualitative data from five focus groups with 35 female Hispanic and Haitian nursery and fernery workers provide details about the women's perceptions of HRI and pregnancy. Participants believe that heat exposure can adversely affect general, pregnancy, and fetal health, yet feel they lack control over workplace conditions and that they lack training about these specific risks. These data are being used to develop culturally appropriate educational materials emphasizing health promoting and protective behaviors during pregnancy.