text: This process was reduced by a protonophore, carbonylcyanide p-trifluoromethoxyphenylhydrazone, and a typical << monocarboxylate transporter >> (MCT) inhibitor, [[ alpha-cyano-4-hydroxycinnamic acid ]], suggesting that nicotinate uptake by rat astrocytes is mediated by H(+)-coupled monocarboxylate transport system.