Salivary IgG4 Levels Contribute to Assessing the Efficacy of Dermatophagoides pteronyssinus Subcutaneous Immunotherapy in Children with Asthma or Allergic Rhinitis.
Journal of clinical medicine(2023)
摘要
At present, there are no effective, non-invasive, and objective indicators to evaluate the efficacy of pediatric house dust mite (HDM)-specific allergen immunotherapy (AIT). A prospective, observational study was performed in children with () asthma and/or allergic rhinitis (AR). Forty-four patients received subcutaneous -AIT for 2 years, and eleven patients received only symptomatic treatment. The patients needed to finish their questionnaires at each visit. Serum and salivary -specific IgE, IgG4, and IgE-blocking factors (IgE-BFs) were measured at 0, 4, 12, and 24 months during AIT. A correlation between them was also evaluated. Subcutaneous -specific AIT improved the clinical symptoms of children with asthma and/or AR. The -specific IgE-BF significantly increased at 4, 12, and 24 months after AIT treatment. Serum and salivary -specific IgG4 significantly increased with the time of the AIT treatment, and significant correlations between them at different time points were observed ( < 0.05). Furthermore, there were significant correlations (R = 0.31-0.62) between the serum -specific IgE-BF and -specific IgG4 at the baseline, 4, 12, and 24 months after the AIT ( < 0.01). The salivary -specific IgG4 levels also demonstrated a certain correlation with the -specific IgE-BF. -specific AIT is an effective treatment for children with asthma and/or AR. Its effect was associated with increased serum and salivary-specific IgG4 levels, as well as an increased IgE-BF. Non-invasive salivary-specific IgG4 may be useful for monitoring the efficacy of AIT in children.
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关键词
IgE-blocking factor,allergen-specific immunotherapy,children,house dust mite,salivary IgG4
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