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  • Title: Granulocyte medullasin levels in gingival crevicular fluid from chronic adult periodontitis patients and experimental gingivitis subjects.
    Author: Kunimatsu K, Ichimaru E, Kato I, Kato Y, Sonoda Y, Aoki Y, Yamamoto K.
    Journal: J Periodontal Res; 1990 Nov; 25(6):352-7. PubMed ID: 2148948.
    Abstract:
    The concentration of medullasin, an elastase-like serine proteinase, in gingival crevicular fluid (GCF) from chronic adult periodontitis patients and experimental gingivitis subjects was determined by the highly sensitive immunoassay method. In periodontitis patients, the medullasin content increased with increase of the GCF volume and then attained a maximum value at a relatively mildly inflamed stage. The value was maintained through more serious stages of disease activity. However, the medullasin content was independent of the probing depth. The medullasin content of the patients was markedly decreased after periodontal treatment, indicating that the enzyme participates in the development of the chronic periodontitis. Large amounts of medullasin were also detected in GCF from experimental gingivitis subjects, although it was not detected by the activity measurements. There was a rapid increase in the medullasin content during the 4-day period after abstention from oral hygiene measures, which corresponded to those of severely inflamed periodontitis patients. The peak value decreased up to the 7th-d followed by a gradual increase during the 21-d experimental period. The increased medullasin level rapidly decreased following resumption of oral hygiene measures. The results suggest that medullasin plays important roles both in the defence mechanism against the gingival inflammation and in the development of the acute inflammation.
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