Results 21 to 30 of about 8,865 (194)
Our previous studies showed that 17α, 20β-dihydroxy-4-pregnen-3-one (DHP) acted as a sex pheromone to induce reproductive success in Chinese black sleeper (Bostrychus sinensis), but its functional mechanism remains unclear.
Yu Ting Zhang +8 more
doaj +1 more source
A comparison of human chorionic gonadotropin and luteinizing hormone releasing hormone on the induction of spermiation and amplexus in the American toad (Anaxyrus americanus). [PDF]
BACKGROUND: Captive breeding programs for endangered amphibian species often utilize exogenous hormones for species that are difficult to breed. The purpose of our study was to compare the efficacy of two different hormones at various concentrations on ...
Carr, M +4 more
core +3 more sources
Antiprogestagen RU486 prevents the LH-dependent decrease in the serum concentrations of inhibin in the rat [PDF]
1. In the rat, the LH-dependent ovarian progesterone rise mediates several actions of the primary surge of LH on the ovary. This experiment was aimed at elucidating the effects of the antiprogestagen RU486 on the LH- dependent decrease in both the serum ...
Bellido, C. (C.) +3 more
core +7 more sources
Afferent Neuronal Control of Type-I Gonadotropin Releasing Hormone Neurons in the Human. [PDF]
Understanding the regulation of the human menstrual cycle represents an important ultimate challenge of reproductive neuroendocrine research. However, direct translation of information from laboratory animal experiments to the human is often complicated ...
Hrabovszky, Erik, Liposits, Zsolt
core +1 more source
Regulation of reproduction via tight control of gonadotropin hormone levels. [PDF]
Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH
Coss, Djurdjica
core +1 more source
Receptors for the luteinizing hormone-releasing hormone [LHRH, also known as gonadotropin-releasing hormone (GnRH)] can be regarded as an ideal target for a personalized medicine approach in cancer therapy. LHRH receptors are expressed in about 80% of human endometrial and ovarian cancers, 86% of prostate cancer, and about 50% of breast cancers ...
Engel, Joerg B. +3 more
openaire +3 more sources
The involvement of actin, calcium channels and exocytosis proteins in somato-dendritic oxytocin and vasopressin release [PDF]
Hypothalamic magnocellular neurons release vasopressin and oxytocin not only from their axon terminals into the blood, but also from their somata and dendrites into the extracellular space of the brain, and this can be regulated independently ...
Leng, Gareth, Ludwig, Mike, Tobin, Vicky
core +2 more sources
Almost all prostate cancers respond to androgen deprivation treatment but many recur. We postulated that risk of hormone escape--frequency and delay--are influenced by hormone therapy modalities.
Charlotte Guyader +10 more
doaj +1 more source
Changes in pituitary and ovarian LHRH receptors after active immunization of female rats against LH or LHRH [PDF]
Summary. The hypothalamic—pituitary—ovarian axis of female rats was disrupted at the site of LHRH stimulation by active immunization against LHRH or at the site of LH action by active immunization against LH. Active immunization against LH was associated with an increase in pituitary LHRH receptors to levels comparable to control ...
R M, Popkin, H M, Fraser
openaire +2 more sources
ABSTRACT Background Sarcopenia has emerged as a potential prognostic factor in patients with advanced prostate cancer (PCa), requiring interventions for its prevention and treatment. Objective We aimed to systematically identify, critically assess and synthesize the available evidence on the effectiveness and safety of interventions for preventing or ...
Pedro de Pablos‐Rodríguez +8 more
wiley +1 more source

