Vasoactive intestinal polypeptide stimulates prolactin release in vivo in the ring dove (Streptopelia risoria)

1986 ◽  
Vol 42 (4) ◽  
pp. 420-422 ◽  
Author(s):  
R. W. Lea ◽  
D. M. Vowles
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Prolactin Release ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Intestinal Polypeptide

The Role of Vasoactive Intestinal Polypeptide as a Neurotransmitter in Canine Penile Erection: A Combined in Vivo and Immunohistochemical Study

1987 ◽  
Vol 138 (4 Part 1) ◽  
pp. 871-877 ◽  
Author(s):  
Klaus-Peter Juenemann ◽  
Tom F. Lue ◽  
Jian-An Luo ◽  
Sami A. Jadallah ◽  
Lora L. Nunes ◽  
...  
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Penile Erection ◽  
Immunohistochemical Study ◽  
Intestinal Polypeptide

Possible Role of Vasoactive Intestinal Polypeptide on Prolactin Release during Suckling in Lactating Women

1987 ◽  
Vol 27 (4) ◽  
pp. 211-215 ◽  
Author(s):  
Ermanno Rolandi ◽  
Nicola Ragni ◽  
Roberto Fanceschini ◽  
Pier Luigi Venturing ◽  
Valeria Messina ◽  
...  
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Prolactin Release ◽  
Lactating Women ◽  
Intestinal Polypeptide

scholarly journals Participation of vasoactive intestinal polypeptide in ovarian steroids production during the rat estrous cycle and in the development of estradiol valerate-induced polycystic ovary

Reproduction ◽  
2007 ◽  
Vol 133 (1) ◽  
pp. 147-154 ◽  
Author(s):  
Claudio Parra ◽  
Jenny L Fiedler ◽  
S Leticia Luna ◽  
Monika Greiner ◽  
Vasantha Padmanabhan ◽  
...  
Keyword(s):  
Estrous Cycle ◽  
Vasoactive Intestinal Polypeptide ◽  
Polycystic Ovary ◽  
Secretory Activity ◽  
Estradiol Valerate ◽  
Steroid Secretion ◽  
Cyclic Changes ◽  
Intestinal Polypeptide

Vasoactive intestinal polypeptide (VIP) stimulates estradiol and progesterone release from ovarian granulosa cells in vitro. Very little information is available as to the role VIP plays in the control of steroid secretion during reproductive cyclicity and in ovarian pathologies involving altered steroid secretion. In this study, we determined the involvement of VIP in regulating ovarian androgen and estradiol release during estrous cyclicity and estradiol valerate (EV)-induced polycystic ovarian development in rats. Our findings show that androgen and estradiol release from ovaries obtained during different stages of rat estrous cycle mimic cyclic changes in steroid release observed in vivo with maximal release occurring during late proestrus. VIP increased androgen release from ovaries of all cycle stages except late proestrus and estradiol release from all cycle stages. Increases in VIP-induced androgen and estradiol release were maximal at early proestrus. Inclusion of saturating concentrations of androstenedione increased magnitude of VIP-induced estradiol release at diestrus and estrus but not proestrus. Magnitude of VIP-induced androgen and estradiol release tended to be greater in the ovaries from EV-treated rats with polycystic ovary compared with estrous controls. At the tissue level, ovarian VIP concentration was cycle stage dependent with highest level seen in diestrus. Maximum concentration of VIP was found in EV-treated rats. Changes in VIP were inversely related to changes in ovarian nerve growth factor, a neuropeptide involved in ovarian androgen secretion. These results strongly suggest that intraovarian VIP participates in the control of estradiol secretion during the rat estrous cycle and possibly in the maintenance of increased ovarian estradiol secretory activity of EV-treated rats.

Reduced vasoactive intestinal polypeptide immunoreactivity in the pituitaries of hormone-deficient mutant mice

1988 ◽  
Vol 118 (2) ◽  
pp. 179-NP ◽  
Author(s):  
T. Noguchi ◽  
T. Sugisaki ◽  
T. Kanamatsu ◽  
I. Satoh ◽  
N. Nishikawa
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Anterior Pituitary ◽  
Mutant Mice ◽  
Target Cells ◽  
Retrograde Flow ◽  
Deficient Mutant ◽  
High Concentration ◽  
Prolactin Release ◽  
Intestinal Polypeptide

ABSTRACT The prolactin-producing cells of the bovine anterior pituitary were found to contain a vasoactive intestinal polypeptide (VIP) immunoreactive substance, thus suggesting a role for VIP in the regulation of prolactin release. The pituitaries of the dw and lit strains of mutant mice, congenitally deficient in prolactin-producing cells, and hyt mice, which were found to have reduced numbers of prolactin-producing cells, showed a markedly reduced VIP immunoreactivity. Hypothalamic VIP immunoreactivity, however, was found to be unchanged in the three strains of mutant mice, indicating that the high concentration of VIP in the hypothalamus does not derive from the adenohypophysis through retrograde flow. The deficiency in the mutant mice seems to be due to the lack of prolactin target cells in the pituitary. J. Endocr. (1988) 118, 179–185

Antisera to Vasoactive Intestinal Polypeptide Inhibit Basal Prolactin Release from Dispersed Anterior Pituitary Cells

1986 ◽  
Vol 43 (6) ◽  
pp. 641-645 ◽  
Author(s):  
Thad C. Hagen ◽  
Mohammed A. Arnaout ◽  
Wendy J. Scherzer ◽  
Donald R. Martinson ◽  
Thomas L. Garthwaite
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Anterior Pituitary ◽  
Pituitary Cells ◽  
Prolactin Release ◽  
Anterior Pituitary Cells ◽  
Intestinal Polypeptide

Effects of high in vivo levels of vasoactive intestinal polypeptide on function of circulating lymphocytes in humans

1990 ◽  
Vol 98 (6) ◽  
pp. 1693-1698 ◽  
Author(s):  
Bruno Annibale ◽  
Stefano Fais ◽  
Monica Boirivant ◽  
Gianfranco Delle Fave ◽  
Francesco Pallone
Keyword(s):  
Vasoactive Intestinal Polypeptide ◽  
Circulating Lymphocytes ◽  
Intestinal Polypeptide
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