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ͪ⦿ Testosterone ͮη ġ μ ϼ

Study on the Effect of Testosterone to the Growth of the Early Chick Embryo by Counting the Isolated Nuclei from Cells

Ǵ 1971 12 1ȣ p.1 ~ 7
ڽñ, , ӹ,
Ҽ
ڽñ (  ) -  Ρ
 (  ) -  Ρ
ӹ (  ) -  Ρ

Abstract


The author injected each 0.5 mg and 7.5 mg of testosterone propionate to each subdivided group of 8th day and 12th day incubated chick embryo to know the effect of the testosterone on growth of the early chick embryo especially the parenchymatous organs such as brain, kidney and liver by counting the isolated nuclei from cells of these organs and the results were obti~ined as followings.
1) In general, the embryo group injected ac 8th day of incubation were noted a growth suppression in comparison with the embr3ro group injected at 12th day of incubation.
2) Both in brain and kidney, the embryo group injected at 8th day of incubation revealed a low nuclear density per unit volume of the organs in comparison with the embryo group injected at 12th day of incubation. (by statistical analysis, p~0.01)
3) In general, in the embryo group injected at 8th day of incubation the embryo group.injected 7.5 mg of the testosterone had a low-nuclear density per unit volume of the organs in. comparison with the embryo group injected 0.5 mg of the testosterone and in the embryo group injected at 12th day of incubation, reverse phenomenon was noted.
4) Both in brain and kidney, the embryo group injected at 8th day of incubation revealed. a growth suppression in companion with the-embryo group injected at 12th day of incubation. (by statistical analysis, p X0.01)
5) Though three parenchymatous organs had. not a marked change in number of cell nuclei per organs to the change of an amount of injection. of the testostorone, in the embryo group injected_ at 8th day of incubation, the embryo group injected 7.5 mg of the testosterone revealed a growth suppression in comparison with the embryo group injected 0.5mg of the testosterone and in the embryo group injected at 12th day-of incubation, reverse phenomenon was noted.

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