Background: The pathomechanisms of gestational trophoblastic disease have not yet been able to be extensively understood. It is associated with oxidative damage related to the production of reactive oxygen species (ROS). Estrogen, as well as all of its metabolites, can produce ROS. Therefore it is necessary to analyze how far the involvement of estrogen, in this case 17β estradiol, to the patho...

Estrogens exert a variety of modulatory effects on the structure and function of the nervous system. In particular, 17 beta-estradiol was found to affect GABAergic inhibition in adult animals but its action on GABAergic currents during development has not been elucidated. In the present study, we investigated the effect of 17 beta-estradiol on hippocampal neurons developing in vitro. In this mo...

17 beta-estradiol enchances androgen-induced prostate growth in the castrate dog to a degree comparable to that seen in spontaneous prostatic hypertrophy. To investigate the mechanism of this synergism, cytosol androgen binding was measured by a density gradient technique in prostates of control and 17 beta-estradiol-treated castrate dogs. [3H]Dihydrotestosterone was bound principally to a moie...

Background: The presence of estrogen receptor beta and aromatase in the germ cell has highlighted the physiological role of the traditionally female hormone, estrogen, in spermatogenesis. Estrogen receptor alpha knockouts and aromatase knockouts have further accentuated the role of estrogen in germ cell maturation. To delineate effects of high intratesticular estradiol in the seminiferous epith...

Human breast cancer cells (MCF-7, maintained in long-term culture) contain separate estrogen receptors specific for either 17/î-estradiol or estrone. Utilizing optimum conditions for the protamine sulfate assay, it has been possible to demonstrate both receptors in the 0.6 M KCI extract of nuclei and in the cytosol. Similarly, in the exchange assay, high-affinity lowcapacity binding sites for ...

ACKNOWLEDGEMENTS Foremost, I would like to sincerely express my gratitude to my mentor Dr. James Simpkins for his continued support, encouragement, sound advice and for his strategic ideas that contributed to the betterment of my thesis work and helped me meet my timelines. This work would not have been possible without him. Also, I would like to sincerely appreciate Dr. Simpkins for his kind a...

conclusions it appears that fenugreek seed might be effective against hyperglycemia, hyperlipidemia and insulin resistance in ovariectomized rats without impact on serum apelin. furthermore, 17-β estradiol could have similar effects along with possible inhibitory effects on serum apelin. the complicated role of apelin in menopause needs to be further explored. results serum apelin, glucose, lip...

We determined the effect of 17 -estradiol on tumor necrosis factor (TNF)-induced cytotoxicity in human peripheral T lymphocytes (T cells) using lactate dehydrogenase assay. Treatment with 17 -estradiol (1–100 nM) for 24 h showed dose-dependent reduction of TNFinduced cytotoxicity in T cells. To further evaluate the mechanism of 17 -estradiol on TNF-induced cytotoxicity in T cells, we identified...

The presence of estrogen receptor beta and aromatase in the germ cell has highlighted the physiological role of the traditionally female hormone, estrogen, in spermatogenesis. Estrogen receptor alpha knockouts and aromatase knockouts have further accentuated the role of estrogen in germ cell maturation. To delineate the direct action of estrogen in the seminiferous epithelium, we studied the ef...