Effect of Systemic Titanium Tetrafluoride (TiF4) on Fluoride Uptake by Developing Rat Enamel (Short Communication)

1983 ◽  
Vol 17 (3) ◽  
pp. 264-266 ◽  
Author(s):  
Buddhi M. Shrestha
Keyword(s):  
Short Communication ◽  
Titanium Tetrafluoride ◽  
Fluoride Uptake ◽  
Developing Rat

Titanium and Fluoride Concentrations in Titanium Tetrafluoride and APF Treated Enamel

1979 ◽  
Vol 58 (2) ◽  
pp. 600-603 ◽  
Author(s):  
Brian Clarkson ◽  
James Wefel
Keyword(s):  
Titanium Tetrafluoride ◽  
Fluoride Solution ◽  
Fluoride Uptake

Greater fluoride concentrations were obtained in enamel treated with phosphate/fluoride solutions than in that treated with TiF4 at similar pH's (1.0) and F concentrations (0.6M F and 1.6M F). However, fluoride solution without added phosphate at pH 1.0 and 1.6M F concentration produced lower fluoride concentrations in enamel than in TiF4 treated enamel. It is proposed that in TiF4 treated enamel the fluoride uptake may be dependent upon the amount of Ti introduced into the enamel.

Fluoride Uptake from Anticalculus Dentifrices in vitro (Short Communication)

1987 ◽  
Vol 21 (1) ◽  
pp. 40-46 ◽  
Author(s):  
D.J. White ◽  
R.V. Fuller
Keyword(s):  
Short Communication ◽  
Fluoride Uptake

Fluoride Uptake from an Anti-Calculus NaF Dentifrice in vitro (Short Communication)

1986 ◽  
Vol 20 (4) ◽  
pp. 332-336 ◽  
Author(s):  
D.J. White ◽  
R.V. Faller
Keyword(s):  
Short Communication ◽  
Fluoride Uptake

Fluoride Uptake and Clearance from the Buccal Mucosa following Mouthrinsing (Short Communication)

1992 ◽  
Vol 26 (1) ◽  
pp. 56-58 ◽  
Author(s):  
A.P.M. Jacobson ◽  
K.W. Stephen ◽  
R. Strang
Keyword(s):  
Buccal Mucosa ◽  
Short Communication ◽  
Fluoride Uptake

In vivo Fluoride Uptake of Human Root Lesions Using a Fluoride-Releasing Device (Short Communication)

1991 ◽  
Vol 25 (2) ◽  
pp. 158-160 ◽  
Author(s):  
R.E. Corpron ◽  
F.G. More ◽  
E.D. Beltran ◽  
J.W. Clark ◽  
C.J. Kowalski
Keyword(s):  
Short Communication ◽  
Fluoride Uptake

Ultrastructure of primary spermatocyte in fish (Tilapia: Oreochromis niloticus): The synaptonemal complex

1986 ◽  
Vol 44 ◽  
pp. 288-289
Author(s):  
T. Guha ◽  
A. Q. Siddiqui ◽  
P. F. Prentis
Keyword(s):  
Fine Structure ◽  
Electron Microscope ◽  
Synaptonemal Complex ◽  
Oreochromis Niloticus ◽  
Short Communication ◽  
Primary Spermatocyte ◽  
Mitotic Division ◽  
Meiotic Cell ◽  
Electron Microscope Level ◽  
Homologous Chromosomes

The Primary Spermatocytes represent a stage in spermatogenesis when the first meiotic cell division occurs. They are derived from Spermatogonium or Stem cell through mitotic division. At the zygotene phase of meiotic prophase the Synaptonemal complex appears in these cells in the space between the paired homologous chromosomes. Spermatogenesis and sperm structure in fish have been studied at the electron microscope level in a few species? However, no work has yet been reported on ultrastructure of tilapia, O. niloticus, spermatozoa and spermatogenetic process. In this short communication we are reporting the Ultrastructure of Primary Spermatocytes in tilapia, O. niloticus, and the fine structure of synaptonemal complexes seen in the spermatocyte nuclei.

An Early Developmental Marker for Radial Glia in Rat Spinal Cord

1996 ◽  
Vol 54 ◽  
pp. 36-37
Author(s):  
V. Kriho ◽  
H.-Y. Yang ◽  
C.-M. Lue ◽  
N. Lieska ◽  
G. D. Pappas
Keyword(s):  
Spinal Cord ◽  
Intermediate Filament ◽  
Radial Glia ◽  
Rat Spinal Cord ◽  
Future Studies ◽  
Spinal Cord Development ◽  
Median Septum ◽  
Differentiation Marker ◽  
Early Developmental ◽  
Developing Rat

Radial glia have been classically defined as those early glial cells that radially span their thin processes from the ventricular to the pial surfaces in the developing central nervous system. These radial glia constitute a transient cell population, disappearing, for the most part, by the end of the period of neuronal migration. Traditionally, it has been difficult to definitively identify these cells because the principal criteria available were morphologic only.Using immunofluorescence microscopy, we have previously defined a phenotype for radial glia in rat spinal cord based upon the sequential expression of vimentin, glial fibrillary acidic protein and an intermediate filament-associated protein, IFAP-70/280kD. We report here the application of another intermediate filament-associated protein, IFAP-300kD, originally identified in BHK-21 cells, to the immunofluorescence study of radial glia in the developing rat spinal cord.Results showed that IFAP-300kD appeared very early in rat spinal cord development. In fact by embryonic day 13, IFAP-300kD immunoreactivity was already at its peak and was observed in most of the radial glia which span the spinal cord from the ventricular to the subpial surfaces (Fig. 1). Interestingly, from this time, IFAP-300kD immunoreactivity diminished rapidly in a dorsal to ventral manner, so that by embryonic day 16 it was detectable only in the maturing macroglial cells in the marginal zone of the spinal cord and the dorsal median septum (Fig. 2). By birth, the spinal cord was essentially immuno-negative for this IFAP. Thus, IFAP-300kD appears to be another differentiation marker available for future studies of gliogenesis, especially for the early stages of radial glia differentiation.

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