Association of Food Desert Residency and Preterm Birth in the United States.

INTRODUCTION: Food deserts are a major public health concern. Inadequate access to healthy food has been associated with poor nutrition and the development of dietary related chronic conditions. OBJECTIVE: To determine the association between geographic access to nutritious food and preterm birth and whether gestational hypertension mediates this relationship. METHODS: Food access data was retrieved from the U.S. Department of Agriculture Food Access Research Atlas (2019) and used to quantify the percentage of Census tracts within each county that were food deserts: low-income tracts with limited access to grocery stores, supermarkets, or other sources of healthy, nutritious foods. These data were merged with US birth records from 2018 to 2019 by using the maternal county of residence (n = 7,533,319). We fit crude and adjusted logistic regression models with generalized estimating equations to determine the association between living in a food desert and the odds of preterm birth. We conducted a secondary within-group analysis by stratifying the fully adjusted model by race for non-Hispanic White and non-Hispanic Black birthing people. RESULTS: In the fully adjusted model, we found a dose-response relationship. As the prevalence of tract-level food deserts within counties increased, so did the likelihood of preterm birth (mid-range: odds ratio (OR) = 1.04, 95% confidence interval (C.I.) 1.01-1.07; high: OR = 1.07, 95% C.I. 1.03-1.11). Similar results were seen in the White-Black stratified models. However, a disparity remained as Black birthing people had the highest odds for preterm birth. Lastly, gestational hypertension appears to mediate the relationship between nutritious food access and preterm birth (natural indirect effect (NIE) = 1.01, 95% CI = 1.00, 1.01). CONCLUSION: It is salient, particularly for Black birthing people who experience high rates of adverse birth outcomes, that the role of food desert residency be explored within maternal and child health disparities.

Maternity Care Deserts in Louisiana and Breastfeeding Initiation.

BACKGROUND: Breastfeeding provides physical, psychological, and immunological benefits to both the mother and infant, but breastfeeding rates are suboptimal. The purpose of this study was to examine whether residing in a maternity care desert (a county with no hospital offering obstetric care and no OB/GYN or certified nurse midwife providers) was associated with lower breastfeeding rates among birthing people in Louisiana from 2019 to 2020. METHODS: Data provided by the March of Dimes were used to classify Louisiana parishes by level of access to maternity care. Using data on all live births provided by the Louisiana Office of Vital Records (n = 112,151), we fit adjusted modified Poisson regression models with generalized estimating equations and exploratory geospatial analysis to examine the association between place of residence and breastfeeding initiation and racial disparities in initiation. We conducted a secondary within-group analysis by fitting the fully adjusted model stratified by race/ethnicity for non-Hispanic white and non-Hispanic Black birthing people. RESULTS: We found that residing in a parish with limited (odds ratio [OR] = 0.87; 95% confidence interval [CI] [0.77, 0.99]) to no access (OR = 0.88; 95% CI [0.80, 0.97]) was significantly associated with lower breastfeeding initiation rates. The within-group analysis determined that both non-Hispanic Black and non-Hispanic white birthing people residing in a parish with limited or no maternity care access had lower breastfeeding initiation rates. CONCLUSION: Reducing rural and racial inequities in breastfeeding may require structural changes and investments in infrastructure to deliver pregnancy care.

Social Media Usage as a Form of Breastfeeding Support Among Black Mothers: A Scoping Review of the Literature.

INTRODUCTION: Social support has been identified in the literature as a key facilitator of breastfeeding success among Black mothers. Over the past decade, there has been a surge of social media groups that can now be used as a means of support for various health and social issues. Social media breastfeeding groups have been used as sources of additional support. A scoping review of the literature was conducted to explore social media usage as a form of social support among Black women in the postpartum period and how it may affect breastfeeding behaviors. METHODS: Using the 5-stage scoping review methodology, scholarly databases were searched for relevant articles. English-language articles on studies conducted both in and outside of the United States were included. Original studies that focused on social media as a form of breastfeeding support and included Black mothers as part of the study population were included. RESULTS: After screening 551 articles, 6 studies fulfilled the study criteria. Participants reported being provided with various forms of social support through social media within the included articles. Primary themes included (1) a sense of community and (2) self-efficacy and empowerment. Breastfeeding support through social media appears to positively influence breastfeeding intention and duration rates among Black mothers. DISCUSSION: Social media is an accessible avenue for breastfeeding information and support. Moreover, it provides a safe space for Black women to interact with others of shared cultural experiences. Therefore, incorporating social media into breastfeeding interventions can positively affect breastfeeding rates among Black women. More research is needed to assess the direct effect of social media breastfeeding support groups on the breastfeeding behaviors and experiences of Black women.

Malformations in the Murine Kidney Caused by Loss of CENP-F Function.

Centromere-binding protein F (CENP-F) is a large and complex protein shown to play critical roles in mitosis and various other interphase functions. Previous studies have shown that the disruption of CENP-F function leads to detrimental effects on human development. Still, it is important to note the lack of studies focusing on the effects that the loss of this essential protein may have on specific adult organs. In the current study, we used a novel global knockout murine model to analyze the potential consequences deletion of CENP-F has on adult kidney structure and function. We discovered several structural abnormalities including loss of ciliary structure, tubule dilation, and disruption of the glomerulus. Along with these structural irregularities, renal dysfunction was also detected suggesting hydronephrosis and acute kidney injury in these knockout organs. Importantly, this is the first study linking CENP-F to kidney disease and hopefully these data will serve as a platform to further investigate the molecular mechanisms disrupted in the kidney by the loss of CENP-F. Anat Rec, 302:163-170, 2019. © 2018 Wiley Periodicals, Inc.