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Effect of specific immunotherapy on serum levels of tumor necrosis factor alpha in asthmatic children

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There is no general agreement among investigators regarding the effect of specific immunotherapy (SIT) on T-cell reactivity. The aim of this study was to investigate the serum levels of IL-1beta, IL-6, and TNF-alpha of children with allergic asthma before and after 3 and 12 months of SIT. Additionally, after 12 months of SIT, we investigated the bronchial hyperresponsiveness. The secondary end points were clinical parameters. Thirty-two children with moderate asthma allergic to house-dust mites (study group) and 10 healthy children (control group) participated in this trial. At each visit blood samples were drawn from all asthmatic patients and at the prestudy visit in controls for determination of parameters. All asthmatic patients received SIT. At the second study visit, baseline spirometry and methacholine challenge tests were performed. Serum TNF-alpha during SIT tended to increase after 3 months with respect to baseline, whereas after 12 months of SIT, serum TNF-alpha decreased. The correlation coefficient (r) between the changes in TNF-alpha values between 3 and 12 months of SIT and provocative concentrations of methacholine to cause a 20% fall in FEV1 (PC20M) after 12 months of SIT was positive (r = 0.76; p < 0.0001); the greater the changes in TNF-alpha level, the higher the PC20. No modification of IL-1beta and IL-6 was observed. Clinical symptoms also improved after 12 months of SIT in children with asthma. In summary, our results showed the variations in serum levels of TNF-alpha during SIT in asthmatic children and confirm anti-inflammatory properties of SIT.
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Keywords: Allergy; IL-1beta; IL-6; TNF-alpha; asthma; children; cytokines; immunotherapy; mechanisms; subcutaneous immunotherapy

Document Type: Research Article

Affiliations: 1: Department of Pediatrics and Allergy, Medical University of Lodz, Poland 2: N. Copernicus Hospital, Lodz, Poland

Publication date: May 1, 2008

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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