In vitro effects of adenohypophysial hormones on rat pineal melatonin content and release.
Mol Cell Endocrinol
; 50(1-2): 23-7, 1987 Mar.
Article
en En
| MEDLINE
| ID: mdl-3034698
ABSTRACT
The effect of adenohypophysial hormones on rat pineal melatonin content and release was examined in vitro. Medium concentration of radioimmunoassayable melatonin decreased after a 6 h exposure to 1-100 ng/ml FSH; pineal levels of melatonin were only decreased by 100 ng/ml FSH. LH (1-100 ng/ml) augmented significantly medium melatonin concentration, tissue levels being increased at 10 ng/ml LH. Parallel increases of explant and medium melatonin content were found after exposure to 1-100 ng/ml TSH. At the smallest concentration employed (1 ng/ml) prolactin increased melatonin content and release while at 100 ng/ml a significant depression of both parameters was found. Growth hormone (1-10 ng/ml) augmented melatonin levels in medium but failed to modify them at 100 ng/ml, although at this concentration tissue melatonin levels increased. ACTH did not modify pineal melatonin synthesis in vitro.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Glándula Pineal
/
Hormonas Adenohipofisarias
/
Melatonina
Límite:
Animals
Idioma:
En
Revista:
Mol Cell Endocrinol
Año:
1987
Tipo del documento:
Article