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Mycopathologia. 1988 Jun;102(3):157-63.

Candidal vaginitis in hormone-treated mice: prevention by a chitin extract.

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Department of Human Microbiology, Sackler School of Medicine, Tel-Aviv University, Israel.


In view of findings from previous studies that a chitin soluble extract (CSE) blocked adhesion of Candida albicans in vitro and in vivo and prevented thereby a short lived candidal infection in naive mice, we attempted in the present study to block by CSE the development of a persistent infection, induced in hormone-treated animals. Continuous oestrus phase was obtained in mice by repeated weekly subcutaneous injections with estradiol benzoate. Intravaginal inoculation of the hormone-treated mice with 10(7)-10(10) C. albicans cells induced a persistent candidal infection. Fifty three mice were pretreated intravaginally prior to inoculation of C. albicans with 2.5, 5.0 or 10 mg/mouse of a CSE cream and followed up for development of infection in comparison to 30 untreated animals. Twenty four hrs post fungus inoculation the infection rate among the CSE treated mice was 11-23% VS 84% among the controls; the rate increased a week later to 97% among the controls VS 41-50% among the CSE treated. Administering the CSE to the mice prior--and post-yeast inoculation (37 mice), led to increased efficacy of the treatment. The data, indicating that CSE is an effective measure for preventing persistent candidal vaginitis, may open the way to consider a similar approach for prophylaxis of vaginitis in human susceptible populations.

[Indexed for MEDLINE]

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