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The effect of exogenous testosterone on the synthesis and release of a bioactive gonadotropic hormone-releasing hormone (GnRH)-like substance has been studied in juvenile male rainbow trout. Long-term testosterone treatment caused an increased gonadotropic hormone (GTH) release and precocious sexual maturity. Tel- and diencephalon extracts from long-term testosterone-treated juvenile rainbow trout showed significantly higher GTH-releasing activity than extracts from control animals when injected in short-term testosterone-pretreated juvenile rainbow trout. It was concluded that long-term testosterone treatment caused an increased synthesis and release of GnRH-like material.
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
July 1989,
Cell and tissue research,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
October 1988,
General and comparative endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
January 1979,
General and comparative endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
January 1987,
The Journal of endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
July 1990,
Fish physiology and biochemistry,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
June 1989,
Experientia,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
January 1978,
General and comparative endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
January 1983,
General and comparative endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
February 1979,
General and comparative endocrinology,
H J Goos, and
R de Leeuw, and
H Cook, and
P G van Oordt
January 1983,
Cell and tissue research,
