M Komori, M Miwa, M Morita, Y Niiya, A Hamamatsu, T Niwa, Y Komori, S Sarai, S Iwata
{"title":"[Relationship between lymphocyte subsets of the peripheral blood and noise induced hearing loss].","authors":"M Komori, M Miwa, M Morita, Y Niiya, A Hamamatsu, T Niwa, Y Komori, S Sarai, S Iwata","doi":"10.1539/joh1959.35.3","DOIUrl":null,"url":null,"abstract":"<p><p>Biochemical examination and two-color flow cytometric analysis of lymphocyte subsets of the peripheral blood were carried out in 107 healthy males working in high noise environments. The level of hearing disorder was compared with these results. By audiometry at six frequency levels, 51 of the 107 healthy males showed hearing loss. Their mean value of hearing ability was 30 dB and/or above. Among the peripheral lymphocyte subsets, helper T cells of CD4+CD45R- were significantly increased and the CD4/CD8 ratio tended to be elevated. CD20 that indicate B cells were reduced. These results suggested a relationship between susceptibility to acoustic trauma and cell-mediated immunity.</p>","PeriodicalId":21500,"journal":{"name":"Sangyo igaku. Japanese journal of industrial health","volume":"35 1","pages":"3-6"},"PeriodicalIF":0.0000,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1539/joh1959.35.3","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sangyo igaku. Japanese journal of industrial health","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1539/joh1959.35.3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Biochemical examination and two-color flow cytometric analysis of lymphocyte subsets of the peripheral blood were carried out in 107 healthy males working in high noise environments. The level of hearing disorder was compared with these results. By audiometry at six frequency levels, 51 of the 107 healthy males showed hearing loss. Their mean value of hearing ability was 30 dB and/or above. Among the peripheral lymphocyte subsets, helper T cells of CD4+CD45R- were significantly increased and the CD4/CD8 ratio tended to be elevated. CD20 that indicate B cells were reduced. These results suggested a relationship between susceptibility to acoustic trauma and cell-mediated immunity.
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