Revista de Odontologia da UNESP
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Revista de Odontologia da UNESP
Original Article

Estudo radioautográfico da síntese de dna do epitélio gengival de camundongos Mus musculus I. Influência da idade

Radioautographic DNA synthesis study on mice Mus Musculus gingival epithelium. I. Age effeet

Tarelho, Z.V.S.; Hetem, S.

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Resumo

Foi estudada a frequência de células que sintetizam DNA na camada basal do epitélio gengival da região do primeiro molar inferior de camundongos jovens e adultos. Para isso, usou-se timidina triciada e técnica radioautográfica. A freqüência de células marcadas foi determinada através do estabelecimento de sua proporção na camada basal do epitélio gengival. Os valores obtidos foram submetidos à análise estatística, e foi verificado que a freqüência de células marcadas aumenta com a idade nos dois sexos.

Palavras-chave

Síntese de DNA, radioautografia, timidina triciada, epitélio gengival, idade

Abstract

It was studied the DNA-synthetizing cells frequency in the gingivol epithelium bosal layer of the first lower molar region in young adult mice during, 3H-thymidine and radioautography. The labeled cells frequency was determined by calculating, their proportions. The data were statiscally analysed ond it was determined that the market cells frequency increases with age in both sexes.

Keywords

DNA synthesis, radioautography, 3H-thymidine, gingival epithelium, age

References



1. BARAKAT, W.J.; TOTO, P.D. & CHOUKAS, N.C. - Aging and cell renewal of epithelium. 1. Periodont., 40:599-602, 1969.

2. BEAGRIE, G.S. - Observations on cell biology of gingival tissues of miee. RI'. dent., J., /2/:417-420,1966.

3. BULLOUGH, W.S. - A study of the hormonal relations of epidermal mitotie aetivity in vitro. II I. Adrenolin. Exp. Cell Res., 9: IOR-115, 1955.

4. BULLOUGH, W.S. & LAURENCE, E.H. - The diurnal cycle in epidermal mitotie duration and its relation to ehalone and adrenalin. Exp. CeI/ Res., 43:343-350, 1966.

5. CAMERON, I.L. - Cell proliferation, migration and speeialization in the epithelium of the mouse tongue. J. exp. Zool., /63:271-2R4, 1966.

6. CLEATON-JONES, P. - Mitotic activity in the oral epithelium ,of the albino rat. 1. dento Res., 55:859-863, 1976.

7. GARGIULLO, A.W.; WENTZ, F.M. & ORBAN, .I. - Mitotie aetivity of human oral epithelium exposed to 30 perecnt hydrogen peroxide. Oral Surg., /4:474-492, 1961.

8. HANSEN, E.R. - Mitotie aetivity in the oral epithelium of the rat. Variations aeeording to age and time of the day. Odont. T, 74: 196-202, 1966.

9. HANSEN, LR. - Mitotie aetivity of thc gingival epithelium in eolchinized rats. Odont. T., 74:229-239, 1966.

10. HANSEN, E.R. - Mitotie aetivity and eell densities in gingival epithclium of rats. Odont. T, 75:28-32, 1967.

11. HANSEN, LR. - Mitotie aetivity alld mitotic duratioll in tongue epithelium of rats. Odont. T, 75:473-479, 1967.

12. HANSEN, E.R. - Mitotie aetivity and mitotie duration in tongue and gingival epithelium of miee. Odont. T., 75:4RO-487, 1967.

13. HAYES, R.L.; SILBERKWEIT, M.; SONI, N.N. & SIMPSON, T.H. - Pattern of mitotic activity and ceI! densities in normal gingival epithelium of children. J. dento Res., 43:217-223, 1964.

14. HENRY, J.L.; MEYER, J.; WEINMANN, .J.P. & SHCHOU R, I. - Pattern of mitotic activity in oral epithelium of rabbits. Arch. Path., 54:281-297,1952.

15. KARRING, T. & LOE, H. - The effect of age on mitotic activity in rat oral epithelium. J. Periodont. Res., 8: 164-170, 1973.

16. LOE, H.; KARRING, T. & HARA, K. - The site of mitotic activity in rat and human oral epithelium. Seand. J. dento Res., 80:111-119,1972.

17. MEYER, J.; MARWAH, A.S. & WINMANN, J. p. - Mitotic rate 01' gingival epithelium in two age groups. J. invest. Derm., 27:237-247, 1956.

18. MEYER, J.; MEDAK, H. & WINMANN, J.P. Mitotic activity and rates of growth in regiollS of 108 oral epithelium differing in width. Growth, 24:29-46, 1960.

19. SHAEAV, Y. & MASSLER, M. - Age changes in oral epithelia. Exp. CeI! Res., 47: 132-138, 1967.

20. SILBERKWEIT, M.; SONI, N.N. & HAYES, R.L. - Pattern of mitotic activity and cell densities in the epithelium of inflamed gingival of children. J. dento Res., 42:1503-1510,1963.

21. SONI, N.N.; SILBERKWEIT, M. & HAYES, R.L. - Pattern of mitotic activity and cell densities in human gingival epithelium . ./. Periodont., 36: 15-21,1965.

22. TARE LHO. Z. V. da S. & HETEM. S. - Estudo radioautográfico da sintese de DNA no epitélio gengival de camundongos Mus museu/uso II. Influência do sexo. Rev. Odont. UNESP, 13:109-112, 1984.
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