Abstract:
:House dust mite D. farinae and Der f II-specific IgG and IgG subclass responses were evaluated in 32 adults with perennial rhinitis undergoing immunotherapy for 1 year by means of IgG-RAST and ELISA. The ELISA method, which is based on subclass-specific monoclonal antibodies, could detect 0.5-1.5 ng/ml of specific antibodies. D. farinae and Der f II-specific IgG4 antibodies increased continuously as immunotherapy proceeded, while total IgG and IgG1 antibodies reached a plateau value 6 months after the start of immunotherapy, followed by a slow decrease during maintenance therapy. During the early phase of treatment the concentration of IgG1 and IgG4 antibodies rose, even though the increase of IgG4 antibodies dominated. The positive clinical outcome as measured by the decrease in conjunctival sensitivity was associated with an increased ratio of specific IgG4/IgG1 antibodies as well as the magnitude of the IgG4 subclass response. Quantitation of IgG subclass antibodies in patients undergoing immunotherapy may be of some clinical value, but the clinical usefulness needs to be demonstrated for each type of allergen and possibly also for each assay system.
journal_name
Allergyjournal_title
Allergyauthors
Einarsson R,Dreborg S,Hammarström L,Löfkvist T,Smith CI,Svensson Gdoi
10.1111/j.1398-9995.1992.tb05092.xkeywords:
subject
Has Abstractpub_date
1992-04-01 00:00:00pages
76-82issue
2 Pt 1eissn
0105-4538issn
1398-9995journal_volume
47pub_type
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