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Mostrando ítems 21-30 de 200
Intraovarian excess of nerve growth factor increases androgen secretion and disrupts estrous cyclicity in the rat
(ENDOCRINE SOC, 2000-03)
A single injection of estradiol valerate induces a form of cystic ovary resembling some aspects of the human polycystic ovarian syndrome. Preceding the development of follicular cysts, there is an increase in intraovarian ...
Immunolocalization of steroidogenic enzymes in the vaginal mucous of Galea spixii during the estrous cycle
(BioMed Central, 2017)
Abstract
Background
The synthesis of sex steroids is controlled by several enzymes such as17α-hydroxylase cytochrome P450 (P450c17) catalyzing androgen synthesis and aromatase ...
Participation of vasoactive intestinal polypeptide in ovarian steroids production during the rat estrous cycle and in the development of estradiol valerate-induced polycystic ovary
(BioScientifica Ltd., 2007)
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 ...
Novel Long-Acting Progesterone Protocols Used to Successfully Synchronize Donor and Recipient Mares With Satisfactory Pregnancy and Pregnancy Loss Rates
(2016-04-01)
The present study aimed to evaluate pregnancy and pregnancy loss rates of recipients treated with alternative long-acting progesterone protocols, designed to synchronize acyclic and cyclic mares, regardless of their cycle ...
Chronic exposure to low concentrations of chlorpyrifos affects normal cyclicity and histology of the uterus in female rats
(Elsevier Science, 2021-10)
Chlorpyrifos (CPF), the most used insecticide in Argentina, can act as an endocrine disruptor at low doses. We previously demonstrated that chronic exposure to CPF induces hormonal imbalance in vivo. The aim of this work ...
Ovarian structure and hormonal status of the UChA and UChB adult rats in response to ethanol
(Elsevier Ireland LtdClareIrlanda, 2009)
Hormonal Oscillations During the Estrous Cycle Influence the Morphophysiology of the Gerbil (Meriones unguiculatus) Female Prostate (Skene Paraurethral Glands)
(Soc Study ReproductionMadisonEUA, 2008)