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. 1987 Feb;63(1):47–53. doi: 10.1136/sti.63.1.47

In vitro adhesiveness and biotype of Gardnerella vaginalis strains in relation to the occurrence of clue cells in vaginal discharges.

T G Scott, C J Smyth, C T Keane
PMCID: PMC1194007  PMID: 3493202

Abstract

Haemagglutination and tissue culture adherence tests using a McCoy cell line were used to examine the adherence characteristics of 105 strains of Gardnerella vaginalis. Each strain represented one isolate per patient. For each patient, a direct smear of vaginal discharge was examined for clue cells. The relation between in vitro adherence and the presence of clue cells was examined. There seemed to be no appreciable relation between the presence of clue cells in smears and the haemagglutinating activity of strains. In contrast, adherence as judged by the McCoy tissue culture system showed a significant relation to the presence of clue cells (p less than 0.001). Though both adhesive characteristics were not inhibited by mannose, the mechanism of haemagglutination of human red cells appeared to differ from that of adherence of tissue culture cells. The findings imply that the clue cell phenomenon is due to attachment of adherent strains of G vaginalis to epithelial cells. Adherent strains of G vaginalis may play a part in the pathogenesis of bacterial vaginosis.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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