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A single injection of naloxone (1 mg/kg s. c.) increased plasma baseline levels by 6 times for ACTH, 17 times for corticosterone, 3 times for LH and 2 times for testosterone. A concomitant ether-stress induced a further 6 fold increment in ACTH and an additional 2 fold increment in corticosterone, both hormones attaining their similar levels to those after ether-stress alone. On the other hand no further increment was observed for LH and testosterone, which actually were more stimulated by naloxone than by stress alone. The tonic inhibition exerted by endogenous opiates on ACTH and LH appears, therefore, to interfere with stress in a different way for the two neuroendocrine systems considered.
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
January 1992,
The Japanese journal of physiology,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
February 1995,
Alcoholism, clinical and experimental research,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
October 1982,
Brain research,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
March 1994,
[Hokkaido igaku zasshi] The Hokkaido journal of medical science,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
April 1987,
The Journal of endocrinology,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
July 2011,
Stress (Amsterdam, Netherlands),
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
November 1972,
Endocrinology,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
January 2000,
Domestic animal endocrinology,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
January 1995,
Neurotoxicology and teratology,
G Ixart, and
A Szafarczyk, and
F Malaval, and
J Nouguier-Soulé, and
I Assenmacher
July 1982,
Life sciences,
