Central progesterone induces female sexual behavior in estrogen-primed intact male rats.

1977 ◽  
Vol 91 (6) ◽  
pp. 1417-1423 ◽  
Author(s):  
Ingeborg L. Ward ◽  
JoAnn E. Franck ◽  
William R. Crowley
1986 ◽  
Vol 69 (2) ◽  
pp. 188-191 ◽  
Author(s):  
P. Södersten ◽  
G.J. Boer ◽  
G.J. De Vries ◽  
R.M. Buijs ◽  
P. Melin

1997 ◽  
Vol 31 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Ann S. Clark ◽  
Elizabeth V. Harrold ◽  
Alison S. Fast

1983 ◽  
Vol 30 (4) ◽  
pp. 613-616 ◽  
Author(s):  
P. Corbier ◽  
J. Roffi ◽  
J. Rhoda

1981 ◽  
Vol 96 (2) ◽  
pp. 273-280 ◽  
Author(s):  
Mridula Chowdhury ◽  
Robert Tcholakian ◽  
Emil Steinberger

Abstract. It has been suggested that treatment of intact male rats with oestradiol benzoate (OeB) causes an interference with testosterone (T) production by the testes by a direct inhibitory effect on steroidogenesis. To test this hypothesis, different doses (5, 10 or 25 IU) of hCG were administered concomitantly with 50 μg of OeB to adult intact or hypophysectomized male rats. The testicular and plasma testosterone, and serum hCG levels were determined. The sex accessory weights were recorded. In the intact OeB-treated group of animals, hCG stimulated both the secondary sex organs and plasma testosterone levels above the intact control group. However, in hypophysectomized animals, although plasma testosterone levels increased above that of intact controls, their secondary sex organ weights did not. Moreover, inspite of high circulating hCG levels, the testicular testosterone content and concentration remained suppressed in OeB-treated animals. The reason for such dichotomy of hCG action on OeB-treated animals is not clear at present.


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