Therefore, the preference of corn oil over SOR observed after 30 min might be related to the postingestive effect of corn oil. Polyunsaturated long-chain fatty acids (PUFAs), which are preferred by mice, are strong ligands for GPR120 (Hirasawa et al., 2005), suggesting that GPR120 on the tongue is also a possible fat recognition receptor. Recently, GPR40 was also found on the tongue in circumvallate, foliate, and a small number of fungiform papillae; therefore, it too, might be involved with the …
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