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1.
Mod Pathol ; 37(3): 100419, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38158125

RESUMO

Due to their increased cancer risk, patients with longstanding inflammatory bowel disease are offered endoscopic surveillance with concomitant histopathologic assessments, aimed at identifying dysplasia as a precursor lesion of colitis-associated colorectal cancer. However, this strategy is beset with difficulties and limitations. Recently, a novel classification criterion for colitis-associated low-grade dysplasia has been proposed, and an association between nonconventional dysplasia and progression was reported, suggesting the possibility of histology-based stratification of patients with colitis-associated lesions. Here, a cohort of colitis-associated lesions was assessed by a panel of 6 experienced pathologists to test the applicability of the published classification criteria and try and validate the association between nonconventional dysplasia and progression. While confirming the presence of different morphologic patterns of colitis-associated dysplasia, the study demonstrated difficulties concerning diagnostic reproducibility between pathologists and was unable to validate the association of nonconventional dysplasia with cancer progression. Our study highlights the overall difficulty of using histologic assessment of precursor lesions for cancer risk prediction in inflammatory bowel disease patients and suggests the need for a different diagnostic strategy that can objectively identify high-risk phenotypes.


Assuntos
Colite Ulcerativa , Colite , Neoplasias Colorretais , Doenças Inflamatórias Intestinais , Neoplasias , Humanos , Reprodutibilidade dos Testes , Colite/complicações , Doenças Inflamatórias Intestinais/complicações , Doenças Inflamatórias Intestinais/diagnóstico , Doenças Inflamatórias Intestinais/patologia , Colonoscopia , Hiperplasia , Neoplasias Colorretais/patologia , Colite Ulcerativa/complicações , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/patologia
2.
Mol Med ; 29(1): 67, 2023 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-37217845

RESUMO

BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is one of the most prevalent monogenic human diseases. It is mostly caused by pathogenic variants in PKD1 or PKD2 genes that encode interacting transmembrane proteins polycystin-1 (PC1) and polycystin-2 (PC2). Among many pathogenic processes described in ADPKD, those associated with cAMP signaling, inflammation, and metabolic reprogramming appear to regulate the disease manifestations. Tolvaptan, a vasopressin receptor-2 antagonist that regulates cAMP pathway, is the only FDA-approved ADPKD therapeutic. Tolvaptan reduces renal cyst growth and kidney function loss, but it is not tolerated by many patients and is associated with idiosyncratic liver toxicity. Therefore, additional therapeutic options for ADPKD treatment are needed. METHODS: As drug repurposing of FDA-approved drug candidates can significantly decrease the time and cost associated with traditional drug discovery, we used the computational approach signature reversion to detect inversely related drug response gene expression signatures from the Library of Integrated Network-Based Cellular Signatures (LINCS) database and identified compounds predicted to reverse disease-associated transcriptomic signatures in three publicly available Pkd2 kidney transcriptomic data sets of mouse ADPKD models. We focused on a pre-cystic model for signature reversion, as it was less impacted by confounding secondary disease mechanisms in ADPKD, and then compared the resulting candidates' target differential expression in the two cystic mouse models. We further prioritized these drug candidates based on their known mechanism of action, FDA status, targets, and by functional enrichment analysis. RESULTS: With this in-silico approach, we prioritized 29 unique drug targets differentially expressed in Pkd2 ADPKD cystic models and 16 prioritized drug repurposing candidates that target them, including bromocriptine and mirtazapine, which can be further tested in-vitro and in-vivo. CONCLUSION: Collectively, these results indicate drug targets and repurposing candidates that may effectively treat pre-cystic as well as cystic ADPKD.


Assuntos
Doenças Renais Policísticas , Rim Policístico Autossômico Dominante , Animais , Humanos , Camundongos , Reposicionamento de Medicamentos , Expressão Gênica , Rim/metabolismo , Doenças Renais Policísticas/tratamento farmacológico , Doenças Renais Policísticas/genética , Doenças Renais Policísticas/complicações , Rim Policístico Autossômico Dominante/tratamento farmacológico , Rim Policístico Autossômico Dominante/genética , Tolvaptan/farmacologia , Tolvaptan/uso terapêutico , Canais de Cátion TRPP/genética , Canais de Cátion TRPP/metabolismo
3.
Int J Behav Nutr Phys Act ; 20(1): 90, 2023 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-37495996

RESUMO

BACKGROUND: Snacking is nearly universal and contributes significant energy to U.S. children's diets. Little is known, however, about where and when snacking intake occurs and if such patterns change with age. This research evaluated age-related differences in eating location, food source location, and timing of snacking among U.S. children aged 1-19 years (y). METHODS: A cross-sectional analysis of snacking among 14,666 children in the 2007-2018 U.S. National Health and Nutrition Examination Survey was conducted using a single 24-hour dietary recall. Snacking was participant-defined and included all eating occasions outside of meals. Linear regression and analysis of covariance were used to examine the effects of age (toddler 1-2 y, preschooler 3-5 y, school-age 6-11 y, adolescent 12-19 y) on the percentage of daily snack energy consumed by eating location (at home vs. away from home), food source location (grocery store, convenience store, school/childcare, restaurant, from someone else (i.e. "socially"), and other), and time of day (morning, 6am-12pm; early afternoon, 12pm-3pm; late afternoon/afterschool 3pm-6pm; evening 6pm-9pm, late-night 9pm-12am, and overnight 12am-6am). RESULTS: On average, U.S. children consumed most of their daily snacking energy at home (71%), from foods and beverages obtained from grocery stores (75%), and in the late afternoon/afterschool (31%). Toddlers and preschoolers consumed a greater percentage of their daily snack energy during the morning hours compared to school-age children and adolescents (both p < 0.001); school-age children consumed the most in the evening (27%, p < 0.001), and adolescents consumed the most in the late-night period (22%, p < 0.001). Age-related increases were seen in the percentage of daily snacking energy eaten outside the home (p < 0.001), and obtained socially (p < 0.001), from restaurants (p < 0.001), and convenience stores (p < 0.001). CONCLUSION: Findings reveal age-related differences in eating location, food source location, and timing of snack intake among U.S. children aged 1-19 y. Younger children consume a greater percentage of snacking calories in the morning and at home relative to older children. School-age children and adolescents show greater snacking in the evening and at night and from foods obtained and eaten outside the home. Efforts to promote healthy snacking behaviors among children should consider developmental differences in snacking patterns.


Assuntos
Comportamento Alimentar , Lanches , Adolescente , Humanos , Criança , Inquéritos Nutricionais , Estudos Transversais , Ingestão de Energia , Dieta , Ingestão de Alimentos
4.
Public Health Nutr ; 26(11): 2374-2382, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37548183

RESUMO

OBJECTIVE: To evaluate snacking and diet quality among US adolescents. DESIGN: Cross-sectional analysis examined snack frequency (snacks/day), size (kcal/snack) and energy density (kcal/g/snack) as predictors of diet quality using the mean of two 24-h dietary recalls. Diet quality was assessed using the Healthy Eating Index (HEI-2015, 0-100), a mean adequacy ratio (MAR, 0-100) for under-consumed nutrients (potassium, fibre, Ca, vitamin D) and mean percentage of recommended limits for over-consumed nutrients (added sugar, saturated fat, Na). Linear regression models examined total snacks, food only snacks and beverage only snacks, as predictors of diet quality adjusting for demographic characteristics and estimated energy reporting accuracy. SETTING: 2007-2018 National Health and Nutrition Examination Survey. PARTICIPANTS: Adolescents 12-19 years (n 4985). RESULTS: Snack frequency was associated with higher HEI-2015 (ß = 0·7 (0·3), P < 0·05) but also with higher intake of over-consumed nutrients (ß = 3·0 (0·8), P ≤ 0·001). Snack size was associated with lower HEI (ß = -0·005 (0·001), P ≤ 0·001) and MAR (ß = -0·005 (0·002), P < 0·05) and higher intake of over-consumed nutrients (ß = 0·03 (0·005), P ≤ 0·001). Associations differed for food only and beverage only snacks. Food only snack frequency was associated with higher HEI-2015 (ß = 1·7 (0·03), P ≤ 0·001), while food only snack size (ß = -0·006 (0·0009), P ≤ 0·001) and food only snack energy density (ß = -1·1 (0·2), P ≤ 0·001) were associated with lower HEI-2015. Conversely, beverage only snack frequency (ß = 4·4 (2·1) P < 0·05) and beverage only snack size (ß = 0·03 (0·01), P ≤ 0·001) were associated with higher intake of over-consumed nutrients. CONCLUSIONS: Smaller, frequent, less energy-dense food only snacks are associated with higher diet quality in adolescents; beverages consumed as snacks are associated with greater intake of over-consumed nutrients.


Assuntos
Comportamento Alimentar , Lanches , Humanos , Adolescente , Inquéritos Nutricionais , Estudos Transversais , Dieta , Ingestão de Energia
5.
Appetite ; 186: 106551, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37024055

RESUMO

Snacking starts early in childhood, yet little is known about child versus family influences on snacking during infancy and toddlerhood. This secondary analysis of baseline data examined associations of child characteristics (e.g., appetitive traits, temperament), caregiver feeding decisions, and sociodemographic characteristics with the mean frequency of (times/day) and mean energy from (kcal/day) child snack food intake. Caregivers and their children (ages 9-15 months) were recruited in Buffalo, NY from 2017 to 2019. Caregivers reported on sociodemographics, child appetitive traits (Baby Eating Behaviour Questionnaire), and child temperament (Infant Behavior Questionnaire-Revised). Three 24-h dietary recalls were collected, and USDA food categories were used to categorize snack foods (e.g., cookies, chips, and puffs). Hierarchical multiple linear regression models examined associations of child characteristics (Step 1: age, sex, baseline weight-for-length z-score, appetitive traits, and temperament), caregiver feeding decisions (Step 2: breastfeeding duration and age of solid food introduction), and caregiver sociodemographic characteristics (Step 3: caregiver age, prepregnancy BMI, education, and household size) with mean child snack food intake. Caregivers (n = 141) were on average 32.6 years of age, predominantly white (89.1%), and college-educated (84.2%). Age of solid food introduction (B = -0.21, p = 0.03), prepregnancy BMI (B = 0.03, p = 0.04), and household size (B = 0.23, p = 0.02) were significantly associated with the mean frequency of (times/day) snack food intake, over and above other variables of interest. Child age (B = 15.96, p = 0.002) was significantly associated with mean energy from (kcal/day) snack food intake. Household size (B = 28.51, p = 0.006) was significantly associated with mean energy from (kcal/day) snack food intake, over and above other variables of interest. There were no significant associations of other child characteristics with snack food intake. Findings show that child snack food intake is more closely associated with caregiver feeding decisions and sociodemographic characteristics than child characteristics. TRIAL REGISTRATION: National Institute on Child Health and Human Development, Grant/Award Number R01HD087082-01.


Assuntos
Cuidadores , Tomada de Decisões , Comportamento Alimentar , Lanches , Fatores Sociodemográficos , Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Adulto , Gravidez , Dieta Saudável , Características da Família , New York , Aleitamento Materno , Comportamento Infantil , Comportamento Apetitivo , Inquéritos e Questionários , Ingestão de Alimentos , Ingestão de Energia , Preferências Alimentares
6.
Int J Behav Nutr Phys Act ; 19(1): 91, 2022 07 23.
Artigo em Inglês | MEDLINE | ID: mdl-35870976

RESUMO

BACKGROUND: Individual differences in eating behaviors among young children are well-established, but the extent to which behaviors aggregate within individuals to form distinct eating behavior profiles remains unknown. Our objectives were to identify eating behavior profiles among preschool-aged children and evaluate associations with temperament and weight. METHODS: A secondary, cross-sectional analysis of baseline data from 2 cohort studies was conducted involving 1004 children aged 3-4 years and their parents with low-income backgrounds. Children's eating behaviors and temperament were assessed by parental report. Body mass index z-scores and weight status were calculated using measured heights and weights. Latent profile analysis (LPA) was used to generate profiles and bivariate analyses were used to evaluate associations with temperament and weight status. RESULTS: LPA revealed the presence of 3 eating behavior profiles among children. Children with High Food Approach profiles (21.2%) had lower temperamental inhibitory control and the highest percent of children with obesity relative to the other profiles. Children with High Food Avoidant profiles (35.6%) had lower temperamental impulsivity and lower BMI z-scores relative to the other profiles, whereas children with Moderate Eating profiles (intermediary levels of all behaviors; 43.2%) had higher temperamental inhibitory control and lower anger/frustration, than other profiles. CONCLUSIONS: Young children's eating behaviors appear to aggregate within individuals to form empirically distinct profiles reflecting food approach, food avoidance, and moderate approaches to eating that are differentiated by aspects of temperament and weight. Future work should seek to understand the extent to which health promotion and obesity prevention approaches should be tailored to take into account children's fundamental dispositions towards eating.


Assuntos
Comportamento Infantil , Comportamento Alimentar , Índice de Massa Corporal , Criança , Pré-Escolar , Estudos Transversais , Ingestão de Alimentos , Humanos , Obesidade/prevenção & controle , Inquéritos e Questionários
7.
Ecol Appl ; 32(7): e2674, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35584131

RESUMO

Global change is impacting the oceans in an unprecedented way, and multiple lines of evidence suggest that species distributions are changing in space and time. There is increasing evidence that multiple environmental stressors act together to constrain species habitat more than expected from warming alone. Here, we conducted a comprehensive study of how temperature and aragonite saturation state act together to limit Limacina helicina, globally distributed pteropods that are ecologically important pelagic calcifiers and an indicator species for ocean change. We co-validated three different approaches to evaluate the impact of ocean warming and acidification (OWA) on the survival and distribution of this species in the California Current Ecosystem. First, we used colocated physical, chemical, and biological data from three large-scale west coast cruises and regional time series; second, we conducted multifactorial experimental incubations to evaluate how OWA impacts pteropod survival; and third, we validated the relationships we found against global distributions of pteropods and carbonate chemistry. OWA experimental work revealed mortality increases under OWA, while regional habitat suitability indices and global distributions of L. helicina suggest that a multi-stressor framework is essential for understanding pteropod distributions. In California Current Ecosystem habitats, where pteropods are living close to their thermal maximum already, additional warming and acidification through unabated fossil fuel emissions (RCP 8.5) are expected to dramatically reduce habitat suitability.


Assuntos
Ecossistema , Gastrópodes , Animais , Carbonato de Cálcio , Carbonatos , Combustíveis Fósseis , Aquecimento Global , Concentração de Íons de Hidrogênio , Oceanos e Mares , Água do Mar
8.
Appetite ; 168: 105778, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34715245

RESUMO

Over the last decade, longitudinal research has shown that children's general, top-down self-regulation during early childhood is negatively associated with children's weight status in elementary school. The samples in these previous studies have been primarily White, and no study to date has examined this issue in a sample of Hispanic children from low-income families-a population at high risk for childhood obesity. The present study followed 130 Hispanic children over a time period of three to just under five years, examining the degree to which multiple measures of general, top-down self-regulation, along with a measure of appetite regulation (eating in the absence of hunger), predicted children's BMI z-scores in the early elementary school years. Results showed that children's ability to delay gratification in the preschool years was negatively associated with later BMI z-scores and that children's eating in the absence of hunger was positively associated. In separate models by gender, these relationships were significant only for girls. Moreover, analyses run separately for children of mothers low or high on acculturation showed that the relationship between delay of gratification and later BMI z-scores was significant only for children whose mothers were low on acculturation. Possible socialization and environmental factors contributing to these findings are considered.


Assuntos
Aculturação , Obesidade Infantil , Índice de Massa Corporal , Criança , Pré-Escolar , Feminino , Hispânico ou Latino , Humanos , Obesidade Infantil/epidemiologia , Instituições Acadêmicas
9.
J Nutr ; 151(9): 2825-2834, 2021 09 04.
Artigo em Inglês | MEDLINE | ID: mdl-34036363

RESUMO

BACKGROUND: Small-quantity lipid-based nutrient supplements (SQ-LNS) are designed to address undernutrition during the complementary feeding period. SQ-LNS contains added sugars, but limited research has assessed whether infants' acceptance varies between versions with and without sugars. OBJECTIVES: Our objective was to examine the effects of repeated exposure on children's acceptance of sweetened and unsweetened SQ-LNS. We aimed to understand caregivers' perceptions of children's liking of the 2 SQ-LNS versions and their influences on infant acceptance of SQ-LNS. METHODS: Caregivers (86% non-Hispanic White) and children (7-24 mo), participated in a randomized, 2-week home-exposure study and baseline and post-home exposure assessments. Children were randomized to receive sweetened or unsweetened SQ-LNS versions, mixed with infant oatmeal. At in-person visits, caregivers fed both SQ-LNS versions to children and rated their child's liking for each. Caregivers fed the SQ-LNS version to which their child was randomized until the child refused to eat more. Acceptance was measured as total grams consumed. Mixed-effects linear models tested the change in SQ-LNS consumed between baseline and postexposure by the SQ-LNS version and number of home exposures. Covariates included the amount of SQ-LNS consumed at baseline, child BMI z-score, child age, and breastfeeding experience. RESULTS: Children's acceptance of both SQ-LNS versions increased from baseline to postexposure (ß, 0.71 g; 95% CI: 0.54-0.89 g; P = 0.04), regardless of SQ-LNS version (P = 0.88) or number of home exposures (P = 0.55). Caregivers rated children's liking of unsweetened SQ-LNS higher at baseline (P = 0.02). Children with lower liking ratings at baseline showed the greatest increases in acceptance between baseline and postexposure (P = 0.01). CONCLUSIONS: Children's acceptance of SQ-LNS increased with repeated exposure, whether offered the sweetened or unsweetened version, providing preliminary support that adding sugar to SQ-LNS may not improve acceptance in young children. Children who initially like the supplement less may need repeated experience to learn to accept SQ-LNS. This trial was registered at clinicaltrials.gov as NCT04544332.


Assuntos
Suplementos Nutricionais , Fenômenos Fisiológicos da Nutrição do Lactente , Aleitamento Materno , Pré-Escolar , Feminino , Humanos , Lactente , Lipídeos , Nutrientes
10.
Int J Behav Nutr Phys Act ; 18(1): 30, 2021 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-33588844

RESUMO

BACKGROUND: The home environment is a central and modifiable influence on the development of childhood obesity. Evidence supports the central role of parents in shaping problematic child eating behaviors and excess weight. Most studies of feeding emphasize parent-driven influences without taking into account the child's role in eating interactions. Few studies have addressed the bi-directional nature of feeding dynamics in studies of young children. METHODS: The goals of this study were: 1) to examine if parental feeding styles during preschool (4-5 years) predict child weight status at 7-9 years, and 2) to examine the direction of effects between parental feeding styles and child weight status over time. Participants were part of a larger longitudinal study of Hispanic Head Start families living in the West South Central United States. Data from mother/child dyads were collected at three time points: Time 1 (ages 4-5), Time 2 (ages 5 ½-6 ½), and at Time 3 (ages 7-9). Only data from the Times 1 and 3 were used in the current analyses. A total of 128 mothers and their children had data on all variables needed for the analyses. Assessments included parent-reported feeding styles, feeding practices, acculturation, child eating behaviors, and child height and weight. Hierarchical regression was used to examine the first aim; a cross-lagged panel analysis examined the second aim. RESULTS: An indulgent parental feeding style at ages 4-5 was associated with increased child BMI z-score at ages 7-9. Indulgent feeding significantly contributed to child BMI z-score beyond demographics, baseline child BMI z-score, parental acculturation, and child eating behaviors. Regarding the direction of effects in parental feeding interactions, the cross-lagged analyses showed that both indulgent feeding style and authoritative feeding style at Time 1 positively predicted child BMI z-scores at Time 3. Child effects were significant as well. Child BMI z-score at Time 1 positively predicted indulgent feeding and negatively predicted authoritarian feeding at Time 3. CONCLUSIONS: Indulgent feeding should be addressed in future family-focused childhood obesity initiatives focused on young children and their parents.


Assuntos
Peso Corporal/fisiologia , Comportamento Alimentar/fisiologia , Poder Familiar , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Estudos Longitudinais , Mães , Pobreza
11.
Am J Emerg Med ; 39: 254.e1-254.e3, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32631770

RESUMO

As the 2019 coronavirus pandemic has unfolded, an increasing number of atypical presentations of COVID-19 have been reported. As patients with COVID-19 often present to emergency departments for initial care, it is important that emergency clinicians are familiar with these atypical presentations in order to prevent disease transmission. We present a case of a 21-year-old woman diagnosed in our ED with COVID-19 associated parotitis and review the epidemiology and management of parotitis. We discuss the importance of considering COVID-19 in the differential of parotitis and other viral-associated syndromes and emphasize the importance of donning personal protective equipment during the initial evaluation.


Assuntos
COVID-19/complicações , Serviço Hospitalar de Emergência/organização & administração , Controle de Infecções/métodos , Parotidite/diagnóstico , Feminino , Humanos , Parotidite/prevenção & controle , Parotidite/virologia , Equipamento de Proteção Individual , Adulto Jovem
12.
Appetite ; 167: 105627, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34389378

RESUMO

OBJECTIVE: Snacking among preschool aged children is nearly universal and has been associated with overconsumed nutrients, particularly solid fats and added sugars (SoFAS). This research examined caregivers' schemas, or cognitive frameworks, for offering snacks to preschool-aged children. METHODS: A qualitative design utilizing card sort methods was employed. Participants were 59 Black, Hispanic, and White caregivers of children aged 3-5 years with low-income backgrounds. Caregivers sorted 63 cards with images of commonly consumed foods/beverages by preschool-aged children in three separate card sorts to characterize snacking occasions, purposes, and contexts. The mean SoFAS content (kcal/100 g) of foods/beverages was evaluated by snacking occasions (snacks vs. not-snacks), purposes, and contexts. RESULTS: Just under two-thirds (38/63 food cards) of foods/beverages were classified as snacks with moderate to high agreement. Snacks were offered for non-nutritive (e.g., requests, rewards) and nutritive (e.g., hunger/thirst) purposes in routine (e.g., home, school) and social contexts (e.g., with grandparents). Snacks offered for non-nutritive purposes and in social contexts were higher in SoFAS than those offered for nutritive reasons and in routine contexts. CONCLUSIONS: Caregivers of young children offered various types of foods/beverages as snacks, with higher SoFAS snacks given for non-nutritive purposes and in social contexts. Understanding of caregivers' schemas for offering snacks to young children may inform targets for obesity prevention and anticipatory guidance to promote the development of healthful eating behaviors.


Assuntos
Cuidadores , Lanches , Criança , Pré-Escolar , Ingestão de Energia , Comportamento Alimentar , Humanos , Fome , Pobreza
13.
Am J Public Health ; 110(4): 540-546, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32078356

RESUMO

Objectives. To identify the effect of a Breakfast in the Classroom (BIC) initiative on the foods and drinks students consume in the morning.Methods. Sixteen public schools in Philadelphia, Pennsylvania, that provide universal breakfast participated in a group randomized trial to examine the effects of BIC with complementary nutrition promotion between 2013 and 2016. Control schools (n = 8) offered breakfast in the cafeteria before school. Baseline data were collected from 1362 students in grades 4 to 6. Endpoint data were collected after 2.5 years. Students self-reported the foods and drinks they consumed in the morning.Results. At endpoint, there was no effect of the intervention on breakfast skipping. Nearly 30% of intervention students consumed breakfast foods or drinks from multiple locations, as compared with 21% of control students. A greater proportion of intervention students than control students consumed 100% juice, and a smaller proportion consumed sugar-sweetened beverages and foods high in saturated fat and added sugar.Conclusions. A BIC initiative led to improvements in the types of foods and drinks students consumed in the morning. However, the program did not reduce breakfast skipping and increased the number of locations where students ate.


Assuntos
Desjejum , Serviços de Alimentação/organização & administração , Instituições Acadêmicas , Bebidas/classificação , Criança , Feminino , Alimentos/classificação , Assistência Alimentar , Humanos , Masculino , Philadelphia , Avaliação de Programas e Projetos de Saúde
14.
Public Health Nutr ; 23(15): 2781-2792, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32713394

RESUMO

OBJECTIVE: Economic hardship (EH) may link to poorer child diet, however whether this association is due to resource limitations or effects on family functioning is unknown. This study examines whether parenting stress mediates the association between EH and child consumption of foods high in saturated fats and added sugars (SFAS). DESIGN: Data were collected from the Fragile Families and Child Wellbeing study. EH was assessed using eight items collected when children were between 1-9 years old. Mothers reported parenting stress and frequency of child consumption of high SFAS foods when children were 9 years old. Latent growth curve modelling (LGCM) and structural equation modelling tested direct associations between the starting level/rate of change in EH and high SFAS food consumption, and parenting stress as a mediator of the association. SETTING: Twenty US cities. PARTICIPANTS: Mothers/children (n 3846) followed birth through age 9 years, oversampled 'high-risk', unmarried mothers. RESULTS: LGCM indicated a curvilinear trend in EH from ages 1-9, with steeper increases from ages 3-9 years. EH did not directly predict the frequency of high SFAS foods. Average EH at 3 and 5 years and change in EH from ages 1-9 predicted higher parenting stress, which in turn predicted more frequent consumption of high SFAS foods. CONCLUSIONS: Findings suggest it may be important to consider parenting stress in early prevention efforts given potential lasting effects of early life EH on child consumption of high SFAS foods. Future research should explore how supports and resources may buffer effects of EH-related stress on parents and children.


Assuntos
Gorduras na Dieta/administração & dosagem , Açúcares da Dieta/administração & dosagem , Ácidos Graxos/administração & dosagem , Poder Familiar , Pobreza , Estresse Psicológico , Criança , Pré-Escolar , Feminino , Alimentos , Humanos , Lactente , Mães
15.
Appetite ; 151: 104701, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32289325

RESUMO

To prevent childhood obesity it is critical to identify behavioral phenotypes for overeating, especially among children who are predisposed to obesity. We examined caloric compensation and appetite control in 212 normal-weight (NW) and obese (OB) children, ages 7 to 9, who were at high risk (HR) or low risk (LR) for obesity based on maternal obesity. In a within-subjects crossover design, children ate breakfast, lunch, dinner, and snacks in the laboratory once a week for two weeks. Children's percentage compensation index (%COMPX) was computed at breakfast. Twenty-five minutes before breakfast, children received one of two compulsory preloads, which varied in energy density (ED) and caloric content [Low ED (LED): 1.00 kcal/g; 100 kcal; High ED (HED): 1.60 kcal/g; 160 kcal]. Children's appetite was measured hourly using Visual Analog Scales, which were used to compute 3-h post-prandial area under the curve (AUCs) after breakfast and the satiety quotient (SQ), which allows between-group comparisons of a fixed amount of a food's potency to reduce appetite sensations per unit of intake. There were no significant differences in %COMPX, SQ, or AUC among LR-NW, HR-NW, and HR-OB children (P > 0.10). SQs for Hunger and Prospective Consumption were higher and SQ for Fullness lower after consuming the LED compared to the HED preload (P < 0.009). Further, the SQ and AUC for Desire to Eat and AUC for Prospective Consumption significantly predicted energy intake during the remainder of the day (P < 0.03). In this study, HR-NW children did not differ from LR-NW or HR-OB children in their caloric compensation or appetite control. Foods with a high satiating effect may facilitate appetite control and help to moderate daily energy intake in all children, including at-risk children.


Assuntos
Regulação do Apetite , Apetite , Criança , Estudos Cross-Over , Ingestão de Energia , Feminino , Humanos , Gravidez , Estudos Prospectivos , Saciação
16.
Appetite ; 145: 104497, 2020 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-31669580

RESUMO

Children consume nearly one-third of their daily energy intake as snacks (i.e., eating occasions that occur between meals); thus there is a growing interest in understanding what snacking occasions look like in the homes of young children. This study makes use of ecological momentary assessment (EMA) to 1) examine differences in the contextual factors, including location, food preparation style, people present, presence of media devices, and overall atmosphere, between meal and snack occasions; and 2) explore differences in the context of snacking occasions across children's gender and weight status. Data for the current study came from the Family Matters Study, which included 150 families with children aged 5-7 years old (n = 25 from each of the following groups: Black/African American, Hispanic, Hmong, Native American, Somali, White). Parents completed an 8-day EMA observation period, during which they were surveyed after each eating occasion with the study child; questions explored contextual factors including location, food preparation style, people present, presence of media devices, and the overall atmosphere of each eating occasion. Differences between meals and snacks were observed; a smaller percentage of snacks (compared to meals) were prepared by the parent, consisted of only homemade food, and were planned ahead of time, as opposed to being served in response to a child's request. Snacks were more likely than other meals to be eaten on the couch and in the presence of a screen. Furthermore, important differences in snacking context were observed by child gender and weight status. Findings illuminate opportunities to improve children's overall dietary intake via interventions focused on improving the quality of foods served during snacks, as well as the contextual environment in which snacks are eaten.


Assuntos
Avaliação Momentânea Ecológica , Etnicidade , Lanches/etnologia , Asiático , População Negra , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Pré-Escolar , Dieta Saudável , Comportamento Alimentar , Feminino , Hispânico ou Latino , Humanos , Masculino , Minnesota , Somália/etnologia , Inquéritos e Questionários , População Branca , Indígena Americano ou Nativo do Alasca
17.
Int J Behav Nutr Phys Act ; 16(1): 6, 2019 01 17.
Artigo em Inglês | MEDLINE | ID: mdl-30654818

RESUMO

BACKGROUND: Few interventions have shown efficacy to influence key energy balance behaviors during the preschool years. OBJECTIVE: A randomized controlled trial (RCT) was used to evaluate the efficacy of Food, Fun, and Families (FFF), a 12 week authoritative food parenting intervention for mothers with low-income levels, to reduce preschool-aged children's intake of calories from solid fat and added sugar (SoFAS). METHODS: Mothers were randomly assigned to receive FFF (n = 59) or to a delayed treatment control (n = 60). The primary outcome was children's daily energy intake from SoFAS at the end of the 12 week intervention, controlling for baseline levels, assessed by 24-h dietary recalls. Secondary outcomes included children's daily energy intake, children's BMI z-scores, and meal observations of maternal food parenting practices targeted in FFF (e.g. providing guided choices). RESULTS: Participating mothers were predominantly African American (91%), with 39% educated beyond high school and 66% unemployed. Baseline demographics and child SoFAS intakes did not differ by group. Lost to follow-up was 13% and did not differ between groups. At post-intervention, FFF children consumed ~ 94 kcal or 23% less daily energy from SoFAS than children in the control group, adjusting for baseline levels (307.8 (95%CI = 274.1, 341.5) kcal vs. 401.9 (95%CI = 369.8, 433.9) kcal, FFF vs. control; p < 0.001). FFF mothers also displayed a greater number of authoritative parenting practices when observed post-intervention with their child at a buffet-style meal (Wilcoxon z = - 2.54, p = 0.012). Neither child total daily energy intake nor BMI z-scores differed between groups post-intervention. CONCLUSIONS: Findings demonstrate the initial efficacy of an authoritative food parenting intervention for families with low-income to reduce SoFAS intake in early childhood. Additional research is needed to evaluate longer-term effects on diet and growth. TRIAL REGISTRATION: Retrospectively registered at ClinicalTrials.gov : #NCT03646201.


Assuntos
Dieta , Gorduras na Dieta/administração & dosagem , Açúcares da Dieta/administração & dosagem , Comportamento Alimentar , Promoção da Saúde/métodos , Poder Familiar , Pobreza , Adulto , Comportamento Infantil , Pré-Escolar , Ingestão de Energia , Feminino , Alimentos , Humanos , Masculino , Mães , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
18.
Public Health Nutr ; 22(7): 1269-1280, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30732660

RESUMO

OBJECTIVE: The current mixed-methods study explored qualitative accounts of prior childhood experiences and current contextual factors around family meals across three quantitatively informed categories of family meal frequency patterns from adolescence to parenthood: (i) 'maintainers' of family meals across generations; (ii) 'starters' of family meals in the next generation; and (iii) 'inconsistent' family meal patterns across generations. DESIGN: Quantitative survey data collected as part of the first (1998-1999) and fourth (2015-2016) waves of the longitudinal Project EAT (Eating and Activity in Adolescents and Young Adults) study and qualitative interviews conducted with a subset (n 40) of Project EAT parent participants in 2016-2017. SETTING: Surveys were completed in school (Wave 1) and online (Wave 4); qualitative interviews were completed in-person or over the telephone.ParticipantsParents of children of pre-school age (n 40) who had also completed Project EAT surveys at Wave 1 and Wave 4. RESULTS: Findings revealed salient variation within each overarching theme around family meal influences ('early childhood experiences', 'influence of partner', 'household skills' and 'family priorities') across the three intergenerational family meal patterns, in which 'maintainers' had numerous influences that supported the practice of family meals; 'starters' experienced some supports and some challenges; and 'inconsistents' experienced many barriers to making family meals a regular practice. CONCLUSIONS: Family meal interventions should address differences in cooking and planning skills, aim to reach all adults in the home, and seek to help parents who did not eat family meals as a child develop an understanding of how and why they might start this tradition with their family.


Assuntos
Ingestão de Alimentos/psicologia , Refeições , Relações Pais-Filho , Pais/psicologia , Adolescente , Fenômenos Fisiológicos da Nutrição do Adolescente , Adulto , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Pré-Escolar , Feminino , Humanos , Lactente , Estudos Longitudinais , Masculino , Minnesota
19.
Public Health Nutr ; 22(2): 223-234, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30378521

RESUMO

OBJECTIVE: To describe the modification and validation of an existing instrument, the Environment and Policy Assessment and Observation (EPAO), to better capture provider feeding practices. DESIGN: Modifications to the EPAO were made, validity assessed through expert review, pilot tested and then used to collect follow-up data during a two-day home visit from an ongoing cluster-randomized trial. Exploratory factor analysis investigated the underlying factor structure of the feeding practices. To test predictive validity of the factors, multilevel mixed models examined associations between factors and child's diet quality as captured by the Healthy Eating Index-2010 (HEI-2010) score (measured via the Dietary Observation in Childcare Protocol). SETTING: Family childcare homes (FCCH) in Rhode Island and North Carolina, USA.ParticipantsThe modified EPAO was pilot tested with fifty-three FCCH and then used to collect data in 133 FCCH. RESULTS: The final three-factor solution ('coercive control and indulgent feeding practices', 'autonomy support practices', 'negative role modelling') captured 43 % of total variance. In multilevel mixed models adjusted for covariates, 'autonomy support practices' was positively associated with children's diet quality. A 1-unit increase in the use of 'autonomy support practices' was associated with a 9·4-unit increase in child HEI-2010 score (P=0·001). CONCLUSIONS: Similar to the parenting literature, constructs which describe coercive controlling practices and those which describe autonomy-supportive practices emerged. Given that diets of pre-schoolers in the USA remain suboptimal, teaching childcare providers about supportive feeding practices may help improve children's diet quality.


Assuntos
Creches/estatística & dados numéricos , Dieta Saudável/estatística & dados numéricos , Inquéritos Nutricionais/normas , Avaliação de Processos em Cuidados de Saúde/normas , Pré-Escolar , Análise Fatorial , Comportamento Alimentar , Feminino , Humanos , Masculino , Análise Multinível , North Carolina , Inquéritos Nutricionais/métodos , Projetos Piloto , Avaliação de Processos em Cuidados de Saúde/métodos , Reprodutibilidade dos Testes , Rhode Island
20.
Appetite ; 142: 104387, 2019 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-31369764

RESUMO

This study focused on the relationship between low-income Latina mothers' perceptions of their preschool children's weight status and maternal feeding practices and styles, also considering the effects of actual child weight status and maternal concern about child weight. A total of 186 low-income Latina mother-child dyads participated. The vast majority of mothers underestimated the weight status of their child, but this varied by child weight status. Although only 30% of mothers of healthy weight children underestimated their child's weight status, 97% of mothers of overweight or obese children did so. No mother overestimated her child's weight status. Contrary to our hypotheses, in most cases, maternal perceptions of child's body weight were not related to maternal feeding styles, nor were many feeding practices predicted by concern about child weight. Instead, children's actual weight status was the strongest predictor of maternal feeding practices and feeding styles. Mothers of children with higher BMI z-scores reported higher levels of healthy eating guidance and responsiveness during feeding and lower levels of pressure to eat, food as reward, and using food to regulate the child's emotions. These mothers were more likely to show an indulgent and less likely to show an authoritarian feeding style. Concern about child weight did not account for any of these significant correlations. Maternal perceptions only mattered for restriction for weight purposes where there were independent effects of both perceived and actual weight status. Implications for understanding the development of child obesity in low-income, Latino populations are considered, along with recommendations for future research and for childhood obesity prevention programs.


Assuntos
Peso Corporal , Dieta Saudável/psicologia , Comportamento Alimentar/psicologia , Hispânico ou Latino/psicologia , Mães/psicologia , Adulto , Autoritarismo , Índice de Massa Corporal , Pré-Escolar , Feminino , Humanos , Masculino , Relações Mãe-Filho , Poder Familiar/psicologia , Obesidade Infantil/psicologia , Percepção , Pobreza/psicologia
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