H Ninomiya, H Hasegawa, T Fukuoka, T Shiosaka, T Yamauchi, O Saiki, S Fujita, Y Kobayashi
{"title":"Selective IgG2,4 subclass and IgE deficiencies in an adult patient with recurrent pneumonia.","authors":"H Ninomiya, H Hasegawa, T Fukuoka, T Shiosaka, T Yamauchi, O Saiki, S Fujita, Y Kobayashi","doi":"10.2169/internalmedicine1962.30.338","DOIUrl":null,"url":null,"abstract":"<p><p>A 28-year-old woman with recurrent pneumonia was found to have selective IgG2, 4 subclass and IgE deficiencies. She had a history of repeated episodes of otitis media and sinusitis in childhood. Her total immunoglobulin level was slightly below the normal range, and selective deficiencies of IgG2, 4 and IgE were found. Although lymphocyte responses to several mitogens were within the normal ranges, peripheral blood mononuclear cells produced only IgM when stimulated by Staphylococcus aureus Cowan 1 and interleukin-2. Gene deletion of the IgG2, 4 subclass was not found, but polymorphism of the IgG gene was detected by DNA analysis of the patient's lymphocytes.</p>","PeriodicalId":14798,"journal":{"name":"Japanese journal of medicine","volume":"30 4","pages":"338-42"},"PeriodicalIF":0.0000,"publicationDate":"1991-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2169/internalmedicine1962.30.338","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese journal of medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2169/internalmedicine1962.30.338","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
A 28-year-old woman with recurrent pneumonia was found to have selective IgG2, 4 subclass and IgE deficiencies. She had a history of repeated episodes of otitis media and sinusitis in childhood. Her total immunoglobulin level was slightly below the normal range, and selective deficiencies of IgG2, 4 and IgE were found. Although lymphocyte responses to several mitogens were within the normal ranges, peripheral blood mononuclear cells produced only IgM when stimulated by Staphylococcus aureus Cowan 1 and interleukin-2. Gene deletion of the IgG2, 4 subclass was not found, but polymorphism of the IgG gene was detected by DNA analysis of the patient's lymphocytes.
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