Background: A shift in the balance ofT helper (Th) cell subsets towards a polarized Th2 population is generally accepted to occur in atopic disease, however, both Th1 and Th2 disorders have increased over the past decades in Western communities.
Objective: The aim of our study was to investigate delayed type hypersensitivity (DTH) response in atopic and non-atopic children in a population with a low prevalence of allergic disorders.
Methods: Skin prick tests (SPT) were performed with fresh egg white and extracts of five inhalant allergens, i.e. cat, dog, house dust mite (Dermatophagoides pteronyssinus), birch and timothy, and DTH response was evaluated by Multitest CMI in 72 Estonian 4- to 6-year-old children.
Results: The frequency of response to diphtheria was significantly increased in SPT-positive children (55% vs. 26%, chi2 = 5.5; P = 0.038). The induration to diphtheria (2.4 +/- 0.5 vs. 0.9 +/- 0.2 mm; P = 0.004), and tetanus (3.5 +/- 0.6 vs. 2.1 +/- 0.3 mm; P = 0.025) was significantly greater in the SPT-positive children. The cumulative size of induration in the positive DTH tests was significantly greater in the SPT-positive children (9.0 +/- 1.2 vs. 5.2 +/- 0.6 mm, P = 0.01).
Conclusion: In this group of children our findings do not support the hypothesis of an immune deviation with decreased Th1 and increased Th2 responses leading to atopic disease, but rather a process of immune modulation whereby both Th1 and Th2 responses are increased in atopic subjects.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1046/j.1365-2745.2002.01503.x | DOI Listing |
Zhonghua Yu Fang Yi Xue Za Zhi
December 2023
Department of Otolaryngology, Head and Neck Surgery, First Affiliated Hospital of Nanchang University, Nanchang 330006, China Jiangxi Medicine Academy of Nutrition and Health Management, Nanchang 330006, China Jiangxi Institute of Otolaryngology Head and Neck Surgery, Nanchang 330006, China.
The study was aimed to analyze the seasonal pollen allergen spectrum of patients with allergic rhinitis (AR) in Nanchang city, and to provide evidence for improving the clinical diagnosis, treatment, prevention and epidemiology of seasonal AR. A retrospective analysis was conducted on the results of skin prick test (SPT) among 1 752 patients with AR in outpatient at Department of Otolaryngology, the First Affiliated Hospital of Nanchang University from September 2020 to August 2021 (a total of 1 069 males and 683 females, age ranged from 2 to 84 years old). SPSS 22.
View Article and Find Full Text PDFInt Arch Allergy Immunol
February 2024
Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan.
Introduction: Patients with hen's egg allergy are often instructed to avoid consuming other avian eggs, such as quail eggs. However, it is unclear whether patients with an acquired tolerance to hen eggs continue to avoid consuming quail eggs. This study aimed to evaluate the clinical features of quail egg ingestion.
View Article and Find Full Text PDFNorth Clin Istanb
September 2023
Umraniye Provincial Health Directorate, Istanbul, Turkiye.
Objective: Atopic diseases are the most common chronic conditions in childhood. The best treatment for allergic disease is possible with early diagnosis. The purpose of the study was to assess the predictive value of total immunoglobulin E (IgE) and eosinophil levels for allergy test positivity in patients diagnosed with asthma, allergic rhinitis (AR), atopic dermatitis (AD), and food allergy (FA).
View Article and Find Full Text PDFZhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
April 2022
Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
To investigate the sensitization characteristics of Juniperus chinensis pollen in patients with allergic rhinitis and/or allergic asthma in Beijing area, and to explore the characteristics of Juniper chinensis pollen sensitized population. Patients with suspected allergic rhinitis and/or asthma from January 2017 to December 2019 in the outpatient department of Allergy Department of Beijing Shijitan Hospital were selected in this study. Skin prick test (SPT) was performed with Juniper chinensis pollen allergen reagent to compare different age and disease allergen distribution, and to observe the sensitization characteristics of its population.
View Article and Find Full Text PDFFront Pediatr
April 2022
State Key Laboratory of Respiratory Disease, Department of Allergy and Clinical Immunology, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
Mugwort is a common pollen allergen in western China, and this study aimed to investigate the patterns of molecular sensitization to major grass pollen allergens (mugwort, ragweed, bermuda grass, and timothy grass) and cross-reactive carbohydrate determinants (CCD) in children who were sensitized to mugwort in western China. Serum-specific IgE (sIgE) of major allergen components and CCD were detected among 121 mugwort SPT-positive children the EUROBlotMaster system if the mugwort-sIgE was positive (MSP). A CCD inhibition test was further performed on the serum of patients with positive CCD-sIgE.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!