S. Higashi
Showa University
5 Papers
82 Citations
S. Higashi is an academic researcher from Showa University. The author has contributed to research in topics: Septate junctions & Enamel organ. The author has an hindex of 4, co-authored 5 publications.
Chat about Author
Papers
Ultrastructure of odontoblasts in kitten tooth germs as revealed by freeze-fracture.
T. Sasaki,K. Nakagawa,S. Higashi +2 more
TL;DR: In this paper, the distribution and structural features of the three kinds of intercellular junctions: gap junctions, macular tight junctions and desmosome-like junctions were clarified by correlated observations using thin sections and freeze-fracture replicas.
30
Intercellular junctions in the cells of the human enamel organ as revealed by freeze-fracture
TL;DR: F Frequent and large gap junctions between adjacent stratum-intermedium cells and between the stratum intermedium and the base of the ameloblast suggest that, in relation to enamel formation, these two cell layers form a functional unit.
23
A morphological, tracer and cytochemical study of the role of the papillary layer of the rat-incisor enamel organ during enamel maturation.
T. Sasaki,S. Higashi +1 more
TL;DR: The results indicate that absorptive and digestive activities of papillary cells are closely related to loss of organic materials from the enamel matrix during enamel maturation.
19
Energy-dispersive X-ray microanalysis and scanning electron microscopy of developing and mature cat enamel.
TL;DR: Calcium and phosphorus distribution in forming, maturing and mature enamel of cat teeth and the microstructures manifest in all these were examined, suggesting that the enamel organ exercises intense cellular control over increases of Ca and P concentration during the formation and maturation stages of amelogenesis
10
Fine structure of secretory ameloblasts in kitten tooth germs, with special regard to intercellular junctions as revealed by freeze-fracture.
T. Sasaki,K. Nakagawa,S. Higashi +2 more
TL;DR: Using both thin sectioning and freeze-fracture replication, junctional complexes at both proximal and distal ends of the cells consisted of tight junctions in close association with gap junctions and desmosomes, suggesting that ameloblast distal junctional complex serve, not only as a barrier to high molecular passive substances through the amelOBlast layer, but also as a channel for ions and low-molecular substances.
5