-transparent.png){kind=logo}
Testosterone secretion in the male rat was high during the late fetal and immediate postnatal periods. It then showed a rapid decrease 3h after birth and remained low until puberty. Male rats from mothers given daily injections of an antibody to testosterone during the week before delivery displayed an LH peak when they were adult, orchidectomized and implanted with oestradiol. However, the amplitude of the peak was far smaller than in female rats from the same mothers treated in the same manner. Thus, the critical period during which testosterone triggers hypothalamic sexual differentiation is very close to birth, possibly starting at the end of the fetal period.
Related Publications
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
January 1986,
Reproduction, nutrition, developpement,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
June 1978,
Behavioral biology,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
January 1974,
The Journal of clinical endocrinology and metabolism,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
December 2000,
Toxicological sciences : an official journal of the Society of Toxicology,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
December 1981,
Journal of biochemistry,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
February 1977,
Hormones and behavior,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
October 1985,
Physiology & behavior,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
February 1989,
Brain research,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
March 2004,
Toxicological sciences : an official journal of the Society of Toxicology,
F Gogan, and
A Slama, and
B Bizzini-Koutznetzova, and
F Dray, and
C Kordon
September 1978,
Biology of reproduction,
