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This study aims to examine children’s fruit, vegetable, and added sugar consumption relative to the Dietary Guidelines for Americans and the American Heart Association’s recommendations, as well as to compare children’s reported consumption with parental perception of the child’s overall diet quality. Data were drawn from 2 independent, cross sectional panels (2009–10 and 2014–15) of the New Jersey Child Health Study. The analytical sample included 2229 households located in five New Jersey cities. Daily consumption of fruit (cups), vegetables (cups), and added sugars (teaspoons) for all children (3–18 years old) were based on parent reports. Multivariate linear regression analyses estimated children’s adjusted fruit, vegetable, and added sugar consumption across parents’ perception categories (Disagree; Somewhat Agree; and Strongly Agree that their child eats healthy). Although only a small proportion of children meet recommendations, the majority of parents strongly agreed that their child ate healthy. Nonetheless, significant differences, in the expected direction, were observed in vegetable and fruit consumption (but not sugar) across parental perceptional categories for most age/sex groups. Dietary interventions tailored to parents should include specific quantity and serving-size information for fruit and vegetable recommendations, based on their child’s age/sex, and highlight sources of added sugar and their sugar content.
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Disparities in healthy food access are well documented in cross-sectional studies in communities across the United States. However, longitudinal studies examining changes in food environments within various neighborhood contexts are scarce. In a sample of 142 census tracts in four low-income, high-minority cities in New Jersey, United States, we examined the availability of different types of food stores by census tract characteristics over time (2009–2017). Outlets were classified as supermarkets, small grocery stores, convenience stores, and pharmacies using multiple sources of data and a rigorous protocol. Census tracts were categorized by median household income and race/ethnicity of the population each year. Significant declines were observed in convenience store prevalence in lower- and medium-income and majority black tracts (p for trend: 0.004, 0.031, and 0.006 respectively), while a slight increase was observed in the prevalence of supermarkets in medium-income tracts (p for trend: 0.059). The decline in prevalence of convenience stores in lower-income and minority neighborhoods is likely attributable to declining incomes in these already poor communities. Compared to non-Hispanic neighborhoods, Hispanic communities had a higher prevalence of small groceries and convenience stores. This higher prevalence of smaller stores, coupled with shopping practices of Hispanic consumers, suggests that efforts to upgrade smaller stores in Hispanic communities may be more sustainable.
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Oceanic life is facing the deleterious aftermath of coral bleaching. To reverse the damages introduced by anthropological means, it is imperative to study fundamental properties of corals. One way to do so is to understand the metabolic pathways and protein functions of corals that contribute to the resilience of coral reefs. Although genomic sequencing and structural modeling has yielded significant insights for well-studied organisms, more investigation must be conducted for corals. Better yet, quantifiable experiments are far more crucial to the understanding of corals. The objective is to clone, purify, and assess coral proteins from the cauliflower coral species known as Pocillopora damicornis. Presented here is the pipeline for how 3-D structural modeling can help support the experimental data from studying soluble proteins in corals. Using a multi-step selection approach, 25 coral genes were selected and retrieved from the genomic database. Using Escherischia coli and Homo sapiens homologues for sequence alignment, functional properties of each protein were predicted to aid in the production of structural models. Using D-SCRIPT, potential pairwise protein-protein interactions (PPI) were predicted amongst these 25 proteins, and further studied for identifying putative interfaces using the ClusPro server. 10 binding pockets were inferred for each pair of proteins. Standard cloning strategies were applied to express 4 coral proteins for purification and functional assays. 2 of the 4 proteins had visible bands on the Coomassie stained gel and were able to advance to the purification step. Both proteins exhibited a faint band at the expected migration distance for at least one of the elutions. Finally, PPI was carried out by mixing protein samples and running in a native gel, resulting in one potential pair of PPI.
Diisobutylene maleic acid, or DIBMA, offers a novel approach to integral membrane protein extraction without requiring the use of detergent. This copolymer extracts the protein along with the surrounding lipids, creating native nanodiscs. This method of solubilization is the preferred method, as traditional detergent solubilization can possibly alter the structural and functional integrity of the membrane protein. DIBMA solubilization, on the other hand, is able to create a more stable environment for the integral membrane protein, while allowing purification through commonly used chromatography methods similar to established detergent solubilization protocols. In this project, we study the ability of DIBMA to isolate the integral membrane protein, chloroplast ATP synthase, without the use of detergents.
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