In vivo and in vitro effects of chromium VI on anterior pituitary hormone release and cell viability

2007 ◽  
Vol 218 (1) ◽  
pp. 79-87 ◽  
Author(s):  
F QUINTEROS ◽  
A POLIANDRI ◽  
L MACHIAVELLI ◽  
J CABILLA ◽  
B DUVILANSKI
Keyword(s):  
Cell Viability ◽  
Anterior Pituitary ◽  
Pituitary Hormone ◽  
Hormone Release ◽  
Chromium Vi ◽  
Anterior Pituitary Hormone ◽  
In Vitro Effects

Vasopressin as a neuroendocrine regulator of anterior pituitary hormone secretion

1993 ◽  
Vol 129 (6) ◽  
pp. 489-496 ◽  
Author(s):  
Andreas Kjær
Keyword(s):  
Arginine Vasopressin ◽  
Mode Of Action ◽  
Anterior Pituitary ◽  
Hormone Secretion ◽  
Pituitary Hormones ◽  
Pituitary Hormone ◽  
Anterior Pituitary Hormones ◽  
Anterior Pituitary Hormone

Secretion of the anterior pituitary hormones adrenocorticotropin (ACTH), β-endorphin and prolactin (PRL) is complex and involves a variety of factors. This review focuses on the involvement of arginine-vasopressin (AVP) in neuroendocrine regulation of these anterior pituitary hormones with special reference to receptor involvement, mode of action and origin of AVP. Arginine-vasopressin may act via at least two types of receptors: V1− and V2−receptors, where the pituitary V1−receptor is designated V1b. The mode of action of AVP may be mediating, i.e. anterior pituitary hormone secretion is transmitted via release of AVP, or the mode of action may be permissive, i.e. the presence of AVP at a low and constant level is required for anterior pituitary hormones to be stimulated. Under in vivo conditions, the AVP-induced release of ACTH and β-endorphin is mainly mediated via activation of hypothalamic V1− receptors, which subsequently leads to the release of corticotropin-releasing hormone. Under in vitro conditions, the AVP-stimulated release of ACTH and β-endorphin is mediated via pituitary V1b− receptors. The mode of action of AVP in the ACTH and β-endorphin response to stress and to histamine, which is involved in stress-induced secretion of anterior pituitary hormones, is mediating (utilizing V1− receptors) as well as permissive (utilizing mainly V1− but also V2−receptors). The AVP-induced release of PRL under in vivo conditions is conveyed mainly via activation of V1−receptors but V2−receptors and probably additional receptor(s) may also play a role. In stress- and histamine induced PRL secretion the role of AVP is both mediating (utilizing V1 −receptors) and permissive (utilizing both V1− and V2− receptors). Arginine-vasopressin may be a candidate for the PRL-releasing factor recently identified in the posterior pituitary gland. Arginine-vasopressin of both magno- and parvocellular origin may be involved in the regulation of anterior pituitary hormone secretion and may reach the corticotrophs and the lactotrophs via three main routes: the peripheral circulation, the long pituitary portal vessels or the short pituitary portal vessels.

Anterior Pituitary Hormone Release in Vitro Inversely Related to Extracellular Osmolarity12

Endocrinology ◽  
1975 ◽  
Vol 96 (6) ◽  
pp. 1559-1565 ◽  
Author(s):  
FRANK LABELLA ◽  
RAM DULAR ◽  
GARY QUEEN ◽  
STANLEY VIVIAN
Keyword(s):  
Anterior Pituitary ◽  
Pituitary Hormone ◽  
Hormone Release ◽  
Anterior Pituitary Hormone ◽  
Release In Vitro

Reserpine inhibits rat anterior pituitary hormone secretion in vitro: Effects of prolactin and ACTH and ultrastructural observations

1983 ◽  
Vol 260 (1) ◽  
pp. 99-106 ◽  
Author(s):  
Ivan S. Login ◽  
Michael J. Cronin ◽  
S.W.J. Lamberts ◽  
Carlos A. Valdenergro ◽  
Robert M. MacLeod
Keyword(s):  
Anterior Pituitary ◽  
Hormone Secretion ◽  
Pituitary Hormone ◽  
Anterior Pituitary Hormone ◽  
In Vitro Effects

scholarly journals Cachectin alters anterior pituitary hormone release by a direct action in vitro.

1989 ◽  
Vol 86 (7) ◽  
pp. 2418-2422 ◽  
Author(s):  
L. Milenkovic ◽  
V. Rettori ◽  
G. D. Snyder ◽  
B. Beutler ◽  
S. M. McCann
Keyword(s):  
Anterior Pituitary ◽  
Direct Action ◽  
Pituitary Hormone ◽  
Hormone Release ◽  
Anterior Pituitary Hormone

The Effect of Interleukin-6 on Pituitary Hormone Release in vivo and in vitro

1991 ◽  
Vol 54 (3) ◽  
pp. 262-266 ◽  
Author(s):  
Krzysztof Lyson ◽  
Samuel M. McCann
Keyword(s):  
Interleukin 6 ◽  
Pituitary Hormone ◽  
Hormone Release
Sign in / Sign up

Export Citation Format

Share Document