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Journal of Dental Research, Vol 60, 69-76, Copyright © 1981 by International & American Associations for Dental Research Online Journals

ARTICLES

Long-term effects of surgical desalivation upon taste acuity, fluid intake, and taste buds in the rat

R. Nanda and F. A. Catalanotto

Taste bud structure and taste preferences in intact and desalivated animals were evaluated to ascertain whether there was a structure-function relationship. Thirty-three totally desalivated rats and 30 sham-operated controls were tested between 95 and 110 d after surgery with a 48-hour two-bottle preference paradigm; they were then sacrificed, and the tongue epithelium and circumvallate papillae taste buds were examined histologically. Desalivated rats manifested significantly increased preferences for normally avoided solutions. Histological study of the dorsal tongue epithelium revealed increased keratosis. There were qualitative changes in the taste buds of the circumvallate papillae with some taste buds appearing shrunken and disorganized.


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