PMID: 6976779Nov 1, 1981Paper

Biogenic monoamines in developing taste buds of mouse circumvallate papillae

Archivum Histologicum Japonicum = Nihon Soshikigaku Kiroku
M TakedaY Suzuki

Abstract

After administration of monoamine precursors, developing taste buds of newborn and young mice were observed by means of electron microscopy and fluorescence histochemistry. Gustatory (type III) cells occurred in the primitive taste buds during stage 1 (0-1 day after birth). These cells had an immature type of afferent synaptic contacts with nerve terminals; however, no specific fluorescence was found in the taste buds after administration of 5-HTP or L-DOPA. During stage 2 (2-7 days), mature types of afferent synapses, taste pores, type I cells and type II cells appeared in the taste buds, and fluorescent cells also appeared following treatment of 5-HTP or L-DOPA. During stage 3 (14-21 days), the gustatory cells underwent ultrastructural changes following injection of 5-HTP; i.e. small dense-cored vesicles (30-60 nm) appeared scattered throughout the cytoplasm and were found to intermingle with small clear vesicles accumulated at the presynaptic membranes of afferent synapses, and the electron densities of large dense-cored vesicles (80-100 nm) were elevated as compared with those of untreated mice. Consequently the ability of gustatory cells to take up amine-precursors started simultaneously with the formation of taste pores a...Continue Reading

Citations

Jul 30, 2010·Journal of Molecular Histology·Yuko SuzukiKiyoshi Kawakami
Feb 1, 1997·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·G Azzali
Jun 6, 1998·Proceedings of the National Academy of Sciences of the United States of America·Y Ninomiya
Mar 17, 2004·Archives of Histology and Cytology·Katsura UedaSatoshi Wakisaka
May 9, 2006·The Journal of Comparative Neurology·Dianna L BartelThomas E Finger
Apr 1, 1991·The Journal of Comparative Neurology·S M Royer, J C Kinnamon
May 1, 1985·The Journal of Comparative Neurology·J C KinnamonS D Roper
Jan 1, 1985·The American Journal of Anatomy·A I FarbmanA Nelson
Mar 12, 2003·The Journal of Comparative Neurology·Cindy L YeeThomas E Finger

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