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1.
Pediatr Allergy Immunol ; 35(4): e14115, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38566365

RESUMEN

BACKGROUND: Introducing peanut products early can prevent peanut allergy (PA). The "Addendum guidelines for the prevention of PA in the United States" (PPA guidelines) recommend early introduction of peanut products to low and moderate risk infants and evaluation prior to starting peanut products for infants at high risk for PA (those with severe eczema and/or egg allergy). Rapid adoption of guidelines could aid in lowering the prevalence of PA. The Intervention to Reduce Early (Peanut) Allergy in Children (iREACH) trial was designed to promote PPA guideline adherence by pediatric clinicians. METHODS: A two-arm, cluster-randomized, controlled clinical trial was designed to measure the effectiveness of an intervention that included clinician education and accompanying clinical decision support tools integrated in electronic health records (EHR) versus standard care. Randomization was at the practice level (n = 30). Primary aims evaluated over an 18-month trial period assess adherence to the PPA guidelines using EHR documentation at 4- and 6-month well-child care visits aided by natural language processing. A secondary aim will evaluate the effectiveness in decreasing the incidence of PA by age 2.5 years using EHR documentation and caregiver surveys. The unit of observation for evaluations are individual children with clustering at the practice level. CONCLUSION: Application of this intervention has the potential to inform the development of strategies to speed implementation of PPA guidelines.


Asunto(s)
Hipersensibilidad al Huevo , Hipersensibilidad al Cacahuete , Niño , Preescolar , Humanos , Lactante , Arachis , Inmunoglobulina E , Hipersensibilidad al Cacahuete/epidemiología , Hipersensibilidad al Cacahuete/prevención & control , Estados Unidos
2.
J Allergy Clin Immunol ; 152(6): 1541-1549.e1, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37714436

RESUMEN

BACKGROUND: The composition of the gut microbiome has been associated with development of atopic conditions such as food allergy (FA) and asthma. African American or Black children with FA have higher rate of asthma compared to their White counterparts. OBJECTIVE: We sought to investigate whether the diversity and relative abundance (RA) of gut microbiota is different between children with FA from different racial backgrounds living in the same cities. Furthermore, we aimed to understand whether the difference in the gut microbiota is associated with asthma in children with FA. METHODS: We analyzed and compared the stool microbiome of a cohort of Black and White children with FA by shotgun genomic sequencing. RESULTS: A total of 152 children with IgE-mediated FA enrolled onto FORWARD (Food Allergy Outcomes Related to White and African American Racial Differences); 30 Black and 122 White children were included. The RA of several bacteria was associated with race and asthma. Most notably the RA of Bacteroides thetaiotaomicron, Chlamydia thrachomatis, Parabacteroides goldsteinii, and Bacteroides eggerthii were significantly higher, while the RA of Bifidobacterium sp CAG:754, Parabacterium johnsonii, Bacteroides intestinalis, and Bifidobacterium breve were significantly lower in stool samples of Black children compared to White children. Asthma was associated with lower RA of B breve, Bifidobacterium catenulatum, Prevotella copri, Veilloella sp CAG:933, and Bacteroides plebius, and higher RA of 3 Bacteroides species. CONCLUSIONS: The observed variations in the gut microbiota of Black and White children such as differences in the Bacteroides and Bifidobacterium species along with their association to history of asthma in our cohort is indicative of their potential role in the higher rate of asthma observed among Black children with FA.


Asunto(s)
Asma , Hipersensibilidad a los Alimentos , Microbioma Gastrointestinal , Microbiota , Niño , Humanos , Microbioma Gastrointestinal/genética , Heces/microbiología
3.
Crit Rev Eukaryot Gene Expr ; 32(6): 21-31, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35997115

RESUMEN

The objective of the study was to explore the role of SDC1 in breast cancer cells. Our study also investigated the regulatory relationship between SDC1 and the microRNA (miRNA) miR-335-5p as well as the impact of these two genes on the progression of breast cancer. Bioinformatic approaches were employed to analyze the differentially expressed messenger RNAs (mRNAs) and miRNAs (DE-mRNAs and DE-miRNAs) in breast cancer tissue. Then mRNA SC1 was obtained. Differentially downregulated mRNAs were intersected with target miRNAs predicted by databases, and miR-335-5p was determined as the study object. Quantitative reverse transcription polymerase chain reaction was applied to assess the expressions of SDC1 and miR-335-5p in each cell line. Next, Western blot assay was conducted to detect the protein level of SDC1 and dual-luciferase assay was performed to verify the binding relationship between miR-335-5p and SDC1. Finally, we conducted methyl thiazolyl tetrazolium (MTT), colony formation, and Transwell assays and flow cytometry to further investigate the impacts of SDC1 and miR-335-5p on the progression of breast cancer. SDC1 was significantly highly expressed while miR-335-5p was remarkably lowly expressed in human breast cancer. Silencing SDC1 in breast cancer blocked the proliferation, migration and invasion of the cells. In breast cancer, SDC1 was a target gene of miR-335-5p and silencing miR-335-5p notably increased SDC1 expression. Compared with the silence of miR-335-5p, simultaneous silences of miR-335-5p and SDC1 significantly reduced the proliferative, migratory and invasive abilities of breast cancer cells. The result revealed the interaction between miR-335-5p and SDC1 in the progression of breast cancer, which may contribute to the treatments for this cancer.


Asunto(s)
Neoplasias de la Mama , MicroARNs , Sindecano-1 , Neoplasias de la Mama/genética , Línea Celular Tumoral , Movimiento Celular/genética , Proliferación Celular/genética , Femenino , Humanos , MicroARNs/genética , Invasividad Neoplásica/genética , Sindecano-1/genética
4.
J Pediatr Psychol ; 47(6): 674-684, 2022 06 07.
Artículo en Inglés | MEDLINE | ID: mdl-35079803

RESUMEN

OBJECTIVE: The prevalence of pediatric food allergy (FA) is increasing and, due to early disease onset, requires significant caregiver management that is associated with psychosocial burden. Caregiver perception of how they cope and handle FA-related events (self-efficacy) has been linked to psychosocial outcomes in racially/geographically homogenous samples. This study explores FA-related caregiver self-efficacy and associations with FA-related caregiver quality of life (QoL) in a diverse cohort. METHODS: Caregivers of children, diagnosed with IgE-mediated FA who identified as non-Hispanic Black or White, were recruited from U.S. academic allergy clinics. Caregivers completed demographic and medical questionnaires, the Food Allergy Self-Efficacy Scale for Parents (FASE-P), Food Allergy Independent Measure-Parent Form (FAIM), and the Food Allergy Quality of Life-Parental Burden (FAQL-PB). Bivariate and multivariate associations estimated relationships between study variables. RESULTS: Caregivers of 365 children (Mage = 5.8 years, 62.2% male, 31.1% Black) were enrolled. Caregivers reported high FA self-efficacy (M = 82.06/100), moderate perceptions of risk/FA severity (FAIM: M = 3.9/7), and some limitations on the FAQL-PB (M = 3.9/7). Self-efficacy was related to lower perceptions of risk/FA severity across all demographic groups (r = -.42, p < .001). Caregivers who reported higher self-efficacy reported better QoL, particularly Black caregivers (r = .67). CONCLUSIONS: In this sample of caregivers of children with FA, greater self-efficacy was related to improved QoL regardless of sociodemographic factors. Caregivers' perception of risk was lower for those with greater self-efficacy. Future research into the impact of FA management on QoL among diverse caregivers is needed.


Asunto(s)
Cuidadores , Hipersensibilidad a los Alimentos , Cuidadores/psicología , Niño , Estudios de Cohortes , Femenino , Hipersensibilidad a los Alimentos/psicología , Humanos , Masculino , Calidad de Vida , Autoeficacia , Encuestas y Cuestionarios
5.
Ann Allergy Asthma Immunol ; 126(3): 255-263.e1, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33157272

RESUMEN

BACKGROUND: The experiences of Black children with food allergy (FA) are not well characterized, particularly with respect to bullying victimization and other psychosocial outcomes. OBJECTIVE: To evaluate bullying experiences of Black and White children with FA, including associations with peer relationships, anxiety, and school policies. METHODS: Surveys were administered to parents of 252 children with physician-diagnosed FA enrolled in the multisite FORWARD cohort. The surveys assessed demographics, atopic disease, bullying victimization, and school FA management practices and policies. Descriptive statistics of bullying by race were compared by χ2 tests. Multiple logistic regression analyses adjusting for race, age, parental education, household income, child sex, and multi-FA compared adjusted probabilities of bullying victimization by school policies. RESULTS: Nearly 20% of school-aged children were bullied for FA with no substantial racial differences overall, though for children ages 11 years and up, White children reported higher rates of bullying. However, Black children experienced non-FA-related bullying twice as frequently as White children (38.6% vs 17.7%; P = .002). Most of the caregivers (85.7%) who intervened in their child's bullying reported that it was helpful. Among parents, 17.3% reported that they were teased or bullied owing to their child's FA. More than half of the respondents (54.8%) reported that some allergens are banned from their child's school, most typically peanut. In schools banning peanuts, FA-related bullying was less frequently reported by all students who have food allergy. CONCLUSION: Bullying owing to FA is common, and caregivers, medical professionals, and school administrators can help reduce bullying by screening for bullying and supporting and educating school policies.


Asunto(s)
Negro o Afroamericano/estadística & datos numéricos , Acoso Escolar/psicología , Hipersensibilidad a los Alimentos/psicología , Padres/psicología , Población Blanca/estadística & datos numéricos , Adolescente , Niño , Preescolar , Femenino , Hipersensibilidad a los Alimentos/terapia , Humanos , Modelos Logísticos , Masculino , Estudios Prospectivos , Instituciones Académicas , Encuestas y Cuestionarios
6.
J Allergy Clin Immunol ; 146(4): 875-883, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32745556

RESUMEN

BACKGROUND: In 2017, the Addendum Guidelines for the Prevention of Peanut Allergy were published with recommendations on early introduction of peanut-containing foods based on infants' clinical history. OBJECTIVE: We sought to conduct a nationwide US survey to assess Guidelines implementation among allergists and immunologists who manage infants for food allergy. METHODS: Survey invitations were delivered to 3281 nonretired, US members of the American Academy of Asthma, Allergy & Immunology, board certified in allergy and immunology. The survey assessed awareness and implementation of the Guidelines and barriers to implementation. Descriptive statistics were generated. RESULTS: Twenty-nine percent (946 of 3281) of surveyed allergists/immunologists responded, and 87.1% (825 of 946) of responders met eligibility criteria. Among eligible responders, 97.1% were aware of the Guidelines. Of these, 64.5% reported full implementation of the Guidelines as published, 34.4% reported partial implementation, and 1.1% reported using none of the Guidelines. Barriers to Guidelines use included parental (47.6%) and self (21.8%) concerns about allergic reactions, lack of referrals (33.6%), parents uninterested in early feeding (28.2%), and lack of clinic time (20.9%). The 2 most common deviations from the Guidelines were considering additional factors not specified in the Guidelines such as family history (50.2%) and conducting skin prick testing in non-high-risk children (43.9%). Of respondents using the Guidelines, 45.7% indicated they needed more education or training. CONCLUSIONS: Essentially all allergists/immunologists who responded to the survey reported full or partial Guidelines implementation. Parental concerns and lack of referrals are major identifiable barriers. Improved Guidelines messaging to parents and referring physicians is warranted.


Asunto(s)
Alergólogos , Implementación de Plan de Salud , Hipersensibilidad al Cacahuete/epidemiología , Hipersensibilidad al Cacahuete/prevención & control , Desensibilización Inmunológica , Personal de Salud , Encuestas Epidemiológicas , Humanos , National Institute of Allergy and Infectious Diseases (U.S.) , Estados Unidos/epidemiología
7.
Curr Allergy Asthma Rep ; 20(2): 6, 2020 02 14.
Artículo en Inglés | MEDLINE | ID: mdl-32067114

RESUMEN

PURPOSE OF REVIEW: In recent decades, food allergy has become an increasing concern for families, clinicians, and policymakers. This review aims to summarize what is currently known about the epidemiology and population-level burden of IgE-mediated food allergy, including its effects on quality of life. RECENT FINDINGS: Prevalence surveys, healthcare utilization data, and findings from longitudinal cohort studies across the globe indicate that food allergy imposes a growing societal burden. Worryingly, recent data indicate that food allergies may be more prevalent among adult populations than previously acknowledged, with many reported cases of adult-onset allergies. While it remains unclear how much of the current population-level burden of disease results from true, IgE-mediated allergy, as much epidemiological data does not incorporate clinical confirmation of disease prevalence-it is clear that affected individuals suffer impairments in their quality of life and incur substantial economic costs-beyond the physical health burden imposed by anaphylaxis.


Asunto(s)
Hipersensibilidad a los Alimentos/epidemiología , Anafilaxia/epidemiología , Hipersensibilidad a los Alimentos/inmunología , Hipersensibilidad a los Alimentos/psicología , Humanos , Inmunoglobulina E/inmunología , Estudios Longitudinales , Prevalencia , Calidad de Vida/psicología
9.
Molecules ; 24(9)2019 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-31035407

RESUMEN

In this study, the detection and quantification of multiple classes of antibiotics in water matrices are proposed using a lab-made solid phase microextraction (SPME) fiber coupled with high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS). The lab-made fiber was prepared using a graphene oxide (G), carbon nanotubes (C), and titanium dioxide (T) composite, namely GCT, with polyacrylonitrile (PAN) as supporting material. The detected antibiotics were enrofloxacin, sulfathiazole, erythromycin, and trimethoprim. The custom-made fiber was found to be superior compared with a commercial C18 fiber. The excellent reproducibility and lower intra-fiber relative standard deviations (RSDs 1.8% to 6.8%) and inter-fiber RSDs (4.5% to 8.8%) made it an ideal candidate for the detection of traces of antibiotics in real environmental samples. The proposed validated method provides a satisfactory limit of detection and good linear ranges with higher (>0.99) coefficient of determination in the aqueous system. Application of the method was made in different real water systems such as river, pond and tap water using the standard spiking method. Excellent sensitivity, reproducibility, lower amount of sample detection and higher recovery was found in a real water sample. Therefore, the extraction method was successfully applied to the detection and quantification of multiple classes of antibiotics in different aqueous systems with satisfactory results.


Asunto(s)
Resinas Acrílicas , Antibacterianos/análisis , Nanotubos de Carbono , Microextracción en Fase Sólida , Estaño , Contaminantes Químicos del Agua/análisis , Resinas Acrílicas/química , Adsorción , Antibacterianos/química , Monitoreo del Ambiente/métodos , Nanotubos de Carbono/química , Nanotubos de Carbono/ultraestructura , Microextracción en Fase Sólida/métodos , Solubilidad , Solventes , Análisis Espectral , Estaño/química , Contaminantes Químicos del Agua/química
11.
Med Sci Monit ; 23: 5774-5782, 2017 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-29206808

RESUMEN

BACKGROUND Lung alveolar epithelial type II cells (AEC II) are the most important stem cells in lung tissues, which are critical for wound repair of bronchopulmonary dysplasia (BPD). This study investigated the effects of calcitonin gene-related peptide (CGRP) on AEC II cells exposed to hyperoxia. MATERIAL AND METHODS Neonatal rat AEC II cells were isolated and identified by detecting surfactant protein C (SP-C). Three small interfering RNAs targeting Notch 1 were synthesized and transfected into AEC II. A hyperoxia-exposed AEC II cell injury model was established and was divided into 8 groups. MDA levels and SOD activity were examined using lipid peroxidation assay kits. Apoptosis and reactive oxygen species (ROS) production were evaluated using flow cytometry. Notch 1 mRNA expression was examined using RT-PCR. Homocysteine-induced endoplasmic reticulum protein (HERP) was examined using Western blot analysis. RESULTS CGRP treatment significantly enhanced MDA levels and decreased SOD activity compared to hyperoxia-treated AEC II cells (P<0.05). CGRP treatment significantly inhibited hyperoxia-induced AEC II cell apoptosis, and significantly suppressed hyperoxia-induced ROS production compared to hyperoxia-treated AEC II cells (P<0.05) either undergoing g secretase inhibitor or Notch RNA interference. CGRP significantly triggered Notch 1 mRNA expression and significantly enhanced HERP expression compared to hyperoxia-treated AEC II cells (P<0.05) either undergoing g secretase inhibitor or Notch RNA interference. CONCLUSIONS In AEC II cells, extrinsic peptide CGRP suppressed hyperoxia-induced apoptosis, oxidative stress, and ROS production, which may be triggered by Notch 1 and HERP signaling pathway.


Asunto(s)
Péptido Relacionado con Gen de Calcitonina/farmacología , Células Epiteliales Alveolares/metabolismo , Animales , Animales Recién Nacidos/metabolismo , Apoptosis/efectos de los fármacos , Péptido Relacionado con Gen de Calcitonina/metabolismo , Proliferación Celular/efectos de los fármacos , Células Cultivadas/metabolismo , Retículo Endoplásmico/metabolismo , Células Epiteliales/metabolismo , Hiperoxia/tratamiento farmacológico , Hiperoxia/metabolismo , Pulmón/metabolismo , Proteínas de la Membrana/efectos de los fármacos , Proteínas de la Membrana/metabolismo , Estrés Oxidativo/efectos de los fármacos , Oxígeno/metabolismo , Ratas , Ratas Sprague-Dawley , Especies Reactivas de Oxígeno/metabolismo , Receptor Notch1/efectos de los fármacos , Receptor Notch1/metabolismo , Transducción de Señal/efectos de los fármacos
13.
ACS Biomater Sci Eng ; 10(5): 2659-2679, 2024 05 13.
Artículo en Inglés | MEDLINE | ID: mdl-38697939

RESUMEN

Connective tissue attaches to bone across an insertion with spatial gradients in components, microstructure, and biomechanics. Due to regional stress concentrations between two mechanically dissimilar materials, the insertion is vulnerable to mechanical damage during joint movements and difficult to repair completely, which remains a significant clinical challenge. Despite interface stress concentrations, the native insertion physiologically functions as the effective load-transfer device between soft tissue and bone. This review summarizes tendon, ligament, and meniscus insertions cross-sectionally, which is novel in this field. Herein, the similarities and differences between the three kinds of insertions in terms of components, microstructure, and biomechanics are compared in great detail. This review begins with describing the basic components existing in the four zones (original soft tissue, uncalcified fibrocartilage, calcified fibrocartilage, and bone) of each kind of insertion, respectively. It then discusses the microstructure constructed from collagen, glycosaminoglycans (GAGs), minerals and others, which provides key support for the biomechanical properties and affects its physiological functions. Finally, the review continues by describing variations in mechanical properties at the millimeter, micrometer, and nanometer scale, which minimize stress concentrations and control stretch at the insertion. In summary, investigating the contrasts between the three has enlightening significance for future directions of repair strategies of insertion diseases and for bioinspired approaches to effective soft-hard interfaces and other tough and robust materials in medicine and engineering.


Asunto(s)
Tendones , Humanos , Fenómenos Biomecánicos/fisiología , Tendones/fisiología , Tendones/anatomía & histología , Animales , Huesos/fisiología , Ligamentos/fisiología , Fibrocartílago/fisiología , Fibrocartílago/química , Fibrocartílago/metabolismo , Colágeno/química , Colágeno/metabolismo , Estrés Mecánico
14.
Clin Teach ; 21(2): e13689, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37935587

RESUMEN

BACKGROUND: There exists strong evidence for the early introduction of peanut to at-risk infants for the primary prevention of peanut allergy. There is a need for educational initiatives to assist in dissemination and implementation of updated clinical guidelines on peanut allergy prevention. APPROACH: The aim for this project was to create an innovative curriculum for paediatricians on peanut allergy prevention. The Intervention to Reduce Early Allergy (Peanut) in Childhood (iREACH) study was leveraged to recruit paediatricians for a needs assessment. Materials from the iREACH study, including an educational YouTube video and knowledge survey, were evaluated. Applying findings from the needs assessment, an innovative curriculum was developed, and updated knowledge survey questions were developed. EVALUATION: The iREACH YouTube video had suboptimal viewing behaviours, and iREACH participants had high baseline knowledge scores that did improve after viewing the video. The majority of respondents to the needs assessment felt that all paediatricians needed access to an effective educational module on peanut allergy prevention, and they wanted a broadly accessible curriculum that incorporated quality media and content segmentation. An online, interactive curriculum was developed that includes clinical cases and games, and updated knowledge questions were created with associated internal structure and reliability evidence, as well as relation to other variables evidence. IMPLICATION: The next steps of this project will focus on curriculum implementation and evaluation through a randomised, prospective study with the aim to serve as an educational model for how to integrate specialty-specific guidelines into broader clinical practice through education.


Asunto(s)
Hipersensibilidad al Cacahuete , Lactante , Humanos , Hipersensibilidad al Cacahuete/prevención & control , Estudios Prospectivos , Reproducibilidad de los Resultados , Curriculum , Arachis , Pediatras
15.
J Allergy Clin Immunol Pract ; 12(3): 681-685, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38190887

RESUMEN

BACKGROUND: Definitive treatment for food allergy reactions including anaphylaxis varies widely by reaction severity and socioeconomic status, but little data exist to characterize the relationship between severity, management, and race and ethnicity. OBJECTIVE: To analyze the differences in reaction severity, epinephrine use, and emergency room (ER) use by race and ethnicity in a large, diverse, food-allergic cohort. METHODS: We analyzed intake data from participants in the Food Allergy Outcomes Related to White and African-American Racial Differences cohort on the history of food allergy reactions, severity of the reactions, and management associated with each reaction. We used descriptive statistics as well as mixed-effects logistic and Poisson models to describe the differences in reaction severity, ER visits, and total lifetime epinephrine use by race and ethnicity. RESULTS: A total of 784 children were included in the analysis: 425 (54.2%) were non-Hispanic White, 282 (36.0%) were non-Hispanic Black, and 77 (9.8%) were Hispanic/Latino. Non-Hispanic Black children had increased odds of more severe reactions (odds ratio, 1.7; 95% CI, 1.2-2.3) and higher odds of going to the ER (odds ratio, 2.8; 95% CI, 1.4-5.4). Both non-Hispanic Black (incidence rate ratio, 0.4; 95% CI, 0.3-0.5) and Hispanic/Latino (incidence rate ratio, 0.3; 95% CI, 0.2-0.5) children had lower rates of total lifetime epinephrine use. CONCLUSIONS: There are significant disparities in the severity and treatment of food allergy reactions by race and ethnicity, resulting in increased ER use and decreased total lifetime epinephrine use. Equipping parents with resources and tools on management of food allergy reactions may result in decreased disparity in access to definitive care.


Asunto(s)
Hipersensibilidad a los Alimentos , Hispánicos o Latinos , Niño , Humanos , Negro o Afroamericano , Epinefrina/uso terapéutico , Etnicidad , Hipersensibilidad a los Alimentos/epidemiología , Blanco
17.
J Exp Psychol Gen ; 152(5): 1334-1350, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36442035

RESUMEN

We conducted two studies to investigate whether children (3-6 years old) with high sensory processing sensitivity show greater susceptibility toward environmental influence in their prosocial development. In two independent samples (NStudy 1 = 120, 55 boys, 65 girls; NStudy 2 = 151, 72 boys, 79 girls), we successfully replicated the findings that children with high sensory processing sensitivity, particularly aesthetic sensitivity, demonstrated stronger susceptibility to the influence of negative parenting in their prosocial behaviors. In the laboratory experimental setting (Study 2), we found that children high in sensory processing sensitivity demonstrated stronger susceptibility to observed negative feedback compared to children with low sensitivity. The heightened susceptibility to observed feedback may potentially be attributed to their enhanced emotional reactivity in reaction to environmental stimuli. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Altruismo , Conducta Infantil , Masculino , Femenino , Humanos , Niño , Preescolar , Conducta Infantil/psicología , Conducta Social , Responsabilidad Parental/psicología , Percepción
18.
JAMA Netw Open ; 6(6): e2318162, 2023 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-37314805

RESUMEN

Importance: Food allergies affect approximately 8% of children and 11% of adults in the US. Racial differences in food allergy outcomes have previously been explored among Black and White children, but little is known about the distribution of food allergies across other racial, ethnic, and socioeconomic subpopulations. Objective: To estimate the national distribution of food allergies across racial, ethnic, and socioeconomic groups in the US. Design, Setting, and Participants: In this cross-sectional survey study, conducted from October 9, 2015, to September 18, 2016, a population-based survey was administered online and via telephone. A US nationally representative sample was surveyed. Participants were recruited using both probability- and nonprobability-based survey panels. Statistical analysis was performed from September 1, 2022, through April 10, 2023. Exposures: Demographic and food allergy-related participant characteristics. Main Outcomes and Measures: Stringent symptom criteria were developed to distinguish respondents with a "convincing" food allergy from those with similar symptom presentations (ie, food intolerance or oral allergy syndrome), with or without physician diagnosis. The prevalence of food allergies and their clinical outcomes, such as emergency department visits, epinephrine autoinjector use, and severe reactions, were measured across race (Asian, Black, White, and >1 race or other race), ethnicity (Hispanic and non-Hispanic), and household income. Complex survey-weighted proportions were used to estimate prevalence rates. Results: The survey was administered to 51 819 households comprising 78 851 individuals (40 443 adults and parents of 38 408 children; 51.1% women [95% CI, 50.5%-51.6%]; mean [SD] age of adults, 46.8 [24.0] years; mean [SD] age of children, 8.7 [5.2] years): 3.7% Asian individuals, 12.0% Black individuals, 17.4% Hispanic individuals, 62.2% White individuals, and 4.7% individuals of more than 1 race or other race. Non-Hispanic White individuals across all ages had the lowest rate of self-reported or parent-reported food allergies (9.5% [95% CI, 9.2%-9.9%]) compared with Asian (10.5% [95% CI, 9.1%-12.0%]), Hispanic (10.6% [95% CI, 9.7%-11.5%]), and non-Hispanic Black (10.6% [95% CI, 9.8%-11.5%]) individuals. The prevalence of common food allergens varied by race and ethnicity. Non-Hispanic Black individuals were most likely to report allergies to multiple foods (50.6% [95% CI, 46.1%-55.1%]). Asian and non-Hispanic White individuals had the lowest rates of severe food allergy reactions (Asian individuals, 46.9% [95% CI, 39.8%-54.1%] and non-Hispanic White individuals, 47.8% [95% CI, 45.9%-49.7%]) compared with individuals of other races and ethnicities. The prevalence of self-reported or parent-reported food allergies was lowest within households earning more than $150 000 per year (8.3% [95% CI, 7.4%-9.2%]). Conclusions and Relevance: This survey study of a US nationally representative sample suggests that the prevalence of food allergies was highest among Asian, Hispanic, and non-Hispanic Black individuals compared with non-Hispanic White individuals in the US. Further assessment of socioeconomic factors and corresponding environmental exposures may better explain the causes of food allergy and inform targeted management and interventions to reduce the burden of food allergies and disparities in outcomes.


Asunto(s)
Hipersensibilidad a los Alimentos , Adulto , Niño , Preescolar , Femenino , Humanos , Masculino , Adulto Joven , Estudios Transversales , Etnicidad , Alimentos , Hipersensibilidad a los Alimentos/etnología , Hispánicos o Latinos , Asiático , Blanco , Negro o Afroamericano , Estados Unidos/epidemiología , Persona de Mediana Edad , Anciano
19.
Pediatrics ; 152(2)2023 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-37476922

RESUMEN

BACKGROUND AND OBJECTIVES: The 2017 Prevention of Peanut Allergy Guidelines recommend incorporating peanut protein into infants' diets to prevent peanut allergy. The goal of this study was to explore US caregivers' awareness, beliefs, practices, and outcomes around peanut introduction. METHODS: A parent-report survey was administered between January and February 2021 to a population-based sample of 3062 US parents/caregivers of a child between age 7 months and 3.5 years. The survey evaluated awareness, beliefs, feeding practices, primary care provider (PCP) interactions, and food reactions. RESULTS: Overall, 13.3% of parents/caregivers reported Prevention of Peanut Allergy Guidelines awareness. Caregivers who reported being white, 30 to 44 years of age, educated, high income, or cared for a child with food allergy or eczema were more likely to be guideline-aware (P < .001). Among US parents/caregivers, 47.7% believed that feeding peanuts early prevented peanut allergy; 17.2% first offered peanut-containing foods before age 7 months and 41.8% did so between ages 7 and 12 months. Peanut introduction occurred earlier among guideline-aware parents/caregivers: 31% offered it before 7 months (P < .001). Overall, 57.8% of parents/caregivers reported discussing peanut introduction with their PCP. PCP counseling was the most common facilitator for peanut introduction before 7 months (odds ratio 16.26 [9.49-27.85]), whereas fear of reactions was the most common reason for delaying peanut introduction beyond 7 months (32.5%). Actual reactions during peanut introduction were reported by 1.4%. CONCLUSIONS: Early peanut feeding practices are gaining traction among US parents/caregivers; however, disparities exist. Future efforts to increase guideline adherence need to address disparities, provide support for medical providers, and educate about the true incidence of reactions.


Asunto(s)
Eccema , Hipersensibilidad a los Alimentos , Hipersensibilidad al Cacahuete , Niño , Lactante , Humanos , Arachis , Hipersensibilidad al Cacahuete/prevención & control , Cuidadores , Hipersensibilidad a los Alimentos/prevención & control , Alérgenos
20.
J Allergy Clin Immunol Pract ; 11(4): 1169-1176, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36720389

RESUMEN

BACKGROUND: Previous studies have reported that Black children with food allergy (FA) have higher risk of atopic comorbidities than White children. OBJECTIVE: Our study sought to understand if disparities in the prevalence of atopic comorbidities among children with FA are driven by individual and community-level socioeconomic status (SES). METHODS: We analyzed data from a prospective, multicenter cohort investigating the natural history of pediatric atopy: the Food Allergy Outcomes Related to White and African American Racial Differences (FORWARD) study. A validated, multicomponent area deprivation index (ADI) percentile score was tabulated by the census block group for each subject's home address. The association of ADI with atopic comorbidities in FA was assessed via multivariable regression analysis. RESULTS: Of the 700 children in this study, the mean ADI was 37.7 (95% confidence interval: 35.6-39.7). The mean ADI was higher in children with asthma (43.3) compared with those without asthma (31.8), which remained significant after adjusting for race (P < .0001). Children with allergic rhinitis (AR) had a higher mean ADI (39.1) compared with those without (33.4) (P = .008). ADI was associated with secondhand smoking, parents' education, and household income. Black children had a higher risk for asthma after adjusting for ADI and SES-related factors. CONCLUSION: The independent association of ADI with asthma and AR, regardless of race, suggests a role of neighborhood-level socioeconomic deprivation in the development of these conditions among children with FA. Black children with FA remained at higher risk for asthma after adjusting for SES-related variables, which can indicate an independent risk for asthma in these children.


Asunto(s)
Asma , Hipersensibilidad a los Alimentos , Hipersensibilidad Inmediata , Rinitis Alérgica , Niño , Humanos , Estudios Prospectivos , Prevalencia , Hipersensibilidad a los Alimentos/epidemiología , Asma/epidemiología , Alérgenos , Rinitis Alérgica/epidemiología
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