... rhythms. A variety of recent evidence indicates that the neuropeptide vasoactive intestinal peptide (VIP) is critical for normal functioning of the SCN. The aim of our study was to examine the possible role of VIP in driving circadian rhythms in the hypothalamic-pituitary-adrenal axis. Methods...

... a pivotal role for BE in the neural regulation of P-induced prolactin secretion. The involvement of OT, SP, and VIP in a specific manner at the pituitary level is not indicated. Progesterone Monkey Gonadal steroids Substance P Vasoactive intestinal peptide Prolactin Beta-endorphin Oxytocin...

...Yupaporn Chaiseha; Orlan M. Youngren; Mohamed E. El Halawani Vasoactive intestinal peptide (VIP) is a significant prolactin-releasing factor (PRF) in avian species, and dopamine (DA) exhibits both a stimulatory and inhibitory influence upon this prolactin (PRL) secretion. The stimulatory effect...

...José Carretero; Manuel Rubio; Ricardo José Vázquez-Perfecto; Fernando Sánchez; José Luis Torres; Rosa Maria Pérez; Ricardo Vázquez An in vitro study was carried out to determine whether testosterone directly inhibits the secretion of pituitary vasoactive intestinal peptide (VIP). A study was also...

...José Carretero; Manuel Rubio; Fernando Sánchez; Ricardo-José Vázquez; Miguel Santos; José Blanco; Ricardo Vázquez Using double labelling for proliferating cell nuclear antigen (PCNA) and vasoactive intestinal peptide (VIP), a study was conducted to elucidate the repercussions of the addition...

... by the antibody against neuronal NOS nor by the antibody against endothelial NOS. By use of double immunohistochemical stainings, NOS was in many nerve fibres colocalized with vasoactive intestinal peptide. Western blot analysis of supernatant fractions of sheep pineal homogenates showed the presence of a band...

...Shu-Kuei Huang; Jenn-Tser Pan The effects of central administration of vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating peptide (PACAP) on hypothalamic tuberoinfundibular dopaminergic neuron activity and serum prolactin (PRL) levels were reported. Adult female Sprague...

...Hajime Watanobe; Shinsuke Sasaki Recent studies have shown that primary hypothyroidism induced in the rat was able to stimulate the biosynthesis of vasoactive intestinal peptide (VIP) in the anterior pituitary (AP). Since the AP VIP is known to stimulate prolactin (PRL) secretion through...

...Mieczyslaw Michalkiewicz; Mitsuo Suzuki We examined whether hypothyroidism-induced increases in the anterior pituitary content of vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) are mediated by the hypothalamus. Male Sprague-Dawley rats were anesthetized and one of the following...

...Richard F. Weick; Katherine M. Stobie; Kyong A. Noh Pulsatile LH secretion in the ovariectomized (OVX) rat is inhibited by intra-cerebroventricular (icv) infusion of vasoactive intestinal peptide (VIP). VIP, rat growth hormone-releasing hormone (rGRH) and secretin with and without an antagonist...

...Hajime Watanobe; Kazuo Takebe We compared the effects of neonatal androgenization (NA) and estrogenization (NE) on vasoactive intestinal peptide (VIP) levels in the anterior pituitary (AP) and the hypothalamus and on prolactin (PRL) secretion in adult female rats. Twenty-four hours after birth...

...Karen S.L. Lam; Gopesh Srivastava; Sau-Ping Tam We investigated the effects of glucocorticoid on the expression of the vasoactive intestinal peptide (VIP) gene, a neuropeptide and an established prolactin (PRL)-releasing factor, in the rat brain and pituitary. The mRNA and peptide contents of VIP...

...Maria Jesús Lorenzo; Franco Sánchez-Franco; Maria Teresa de los Frailes; Rosa Maria Tolón; Gumersindo Fernández; Lucinda Cacicedo The effects of thyroid hormones (TH) on brain immunoreactive-vasoactive intestinal peptide (IR-VIP) secretion and content in cultured fetal rat cortical cells were...

...(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Variants of peptide histidine isoleucinamide Vasoactive intestinal peptide Temporal cortex Hippocampus Striatum...

...Sara R. Chiocchio; M. de las Nieves Parisi; Leiza Vitale; Juan H. Tramezzani The present study was designed to investigate whether the vasoactive intestinal peptide (VIP) concentration in hypothalamic nuclei, dorsal raphe nucleus (DR) and pituitary lobes of lactating rats changes in physiological...

...Linda J. Huffman; Mieczyslaw Michalkiewicz; John M. Connors; Zbigniew Pietrzyk; George A. Hedge In the thyroid gland, vasoactive intestinal peptide (VIP) and acetylcholine (ACh) are found in nerve fibers associated with secretory cells and blood vessels. We have, therefore, initiated studies...

...Karen S.L. Lam; Gopesh Srivastava; Ronald M. Lechan; Tong Lee; Seymour Reichlin Vasoactive intestinal peptide (VIP), a prolactin (PRL)-releasing factor, has been shown to be synthesized within the anterior pituitary. To test the hypothesis that estrogens increase PRL secretion, at least in part...

... to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Monkey Pituitary, Prolactin Vasoactive intestinal peptide Cyclic AMP Estradiol Phenol red Neuroendocrinology 1990;51:576-585 Effect of Vasoactive Intestinal Peptide...

...Katherine M. Stobie; Richard F. Weick Vasoactive intestinal peptide (VIP) inhibits pulsatile luteinizing hormone (LH) secretion in the ovariectomized rat. Hypothalamic nuclei known to contain VIPergic neurons were destroyed electrolytically to determine whether either an increased response...

...Marina Pizzi; Maurizio Memo; Marina Benarese; Eiisa Simonazzi; Cristina Missale; Franco Spano Vasoactive intestinal peptide (VIP) is a prolactin (PRL)-releasing factor which has been proposed to exert its secreting property by activating the adenylate cyclase enzyme. The present study shows...