The effects of dietary carbohydrates on the adherence of to HeLa epithelial monolayers and buccal epithelial cells were compared by two assay systems. preincubated in 0.5m, glucose, sucrose, galactose, xylitol or maltose medium produced a significant enhancement in adhesion to both types of epithelial cells. Maltose was the most effective sugar and glucose the least effective in promoting adhesion, while lactose had no significant effect. A clinical isolate of demonstrated a greater overall enhancement in adhesion from preincubation with glucose, sucrose and maltose, when compared with a reference laboratory strain of . These results imply that exogenous or endogenous carbon sources may affect the oral and vaginal carriage of , by modifying their adhesive properties.


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