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  • Title: Calbindin D28k-like immunoreactivity in the gustatory epithelium in the rat.
    Author: Miyawaki Y, Morisaki I, Tabata MJ, Kurisu K, Wakisaka S.
    Journal: Neurosci Lett; 1996 Aug 16; 214(1):29-32. PubMed ID: 8873124.
    Abstract:
    The distribution of calbindin D28k (CB)-like immunoreactivity (-LI) in the gustatory epithelium was examined in the adult rat. In the circumvallate and foliate papillae, CB-like immunoreactive (-IR) nerve fibers were observed in the subgemmal region, and some of these penetrated the taste buds. Two or three spindle-shaped gustatory cells displayed CB-LI in each taste bud of these lingual papillae; the immunoreactivity was restricted to the cytoplasm. In the fungiform papilla, CB-IR nerve fibers were detected in the subgemmal region, but no CB-IR cells were observed in the taste buds of the fungiform papillae. In the taste buds of the incisive papillae, many CB-IR intragemmal nerve fibers were observed, but no apparent CB-IR cells were detected. In the soft palate, CB-IR nerve fibers associated with the taste buds were also observed, but no CB-IR cells were detected in the taste buds. The present findings indicate that CB-IR gustatory cells were only localized in the taste buds in the posterior lingual papillae (circumvallate and foliate papillae), but not in the taste buds in other gustatory epithelium.
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