Chemotactic responses to a mixture of cholic acid and lithocholic acid.

Chemotactic migration of CsNEJs to a mixed solution of cholic acid and lithocholic acid was examined in 1 h. The mixed solution was made of 50 mM cholic acid and lithocholic acid at concentrations of 0.13–8 mM (A), or 1 mM lithocholic acid and cholic acid at concentrations of 3.13–50 mM (B). Each point represents mean ± standard error of mean. *pppA) or lithocholic acid only (B).