Vasoactive intestinal polypeptide (VIP)- and substance P (SP)-like immunoreactivities were examined in the tongue of the guinea pig by using the double immunofluorescence method. Coexistence of VIP-and SP-like immunoreactivities was suggested in many nerve fibers innervating the lingual salivary glands, as well as in a few intralingual ganglionic cells.
- Guinea pig
- Substance P
- Vasoactive intestinal polypeptide
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