Publications by authors named "Liliana Beatriz Oliveros"
Objective: Ovarian steroids are modulated by neural influences. In this work we investigate whether norepinephrine (NE) modifies the vasoactive intestinal peptide (VIP) or neuropeptide Y (NPY) actions in coeliac ganglion (CG) on the ovarian hormone release, and evaluate the participation of nitric oxide (NO), measured as nitrite, and of inducible nitric oxide synthetase (iNOS) protein, nerve growth factor (NGF) and its trkA receptor gene expression in the ovarian response.
Methods: The study was performed in the ex vivo CG-superior ovarian nerve (SON)-ovary system of rats on diestrus day 2 (D2).
Objective: We studied the effect of dietary vitamin A deprivation on lipid composition and mRNA expression of regulatory enzymes involved in rat heart energetic lipid metabolism and its relation to the expression of peroxisome proliferator-activated receptor (PPAR) and retinoid X receptor (RXR) genes.
Methods: Male Wistar 21-d-old rats were fed for 3 mo with a vitamin A-free diet (vitamin A-deficient group) and the same diet plus 8 mg of retinol palmitate per kilogram of diet (control group). One group of deficient animals received the control diet 15 d before sacrifice (vitamin A-refed group).
Unlabelled: The pituitary pars tuberalis (PT) is characterized by PT-specific secretory cells which have raised the possibility of an endocrine function for this portion of adenohypophysis.
Objective: To investigate the effect of the secretion of bovine PT cells into culture medium on growth hormone (GH) response of dispersed pars distalis (PD) cells of rats.
Methods And Results: 48-hour culture medium of all PT cells at 1 microg of protein concentration induced the greatest GH release from PD cells.