Results 21 to 30 of about 158,816 (117)

Polycystic Ovary Syndrome Phenotype D Versus Functional Hypothalamic Amenorrhea With Polycystic Ovarian Morphology: A Retrospective Study About a Frequent Differential Diagnosis

open access: yesFrontiers in Endocrinology, 2022
The two most frequent causes of secondary amenorrhea are polycystic ovary syndrome (PCOS) and functional hypothalamic amenorrhea (FHA). Despite several studies showing differences in hormonal profile between these groups, the differential diagnosis ...
Klara Beitl   +7 more
doaj   +1 more source

The Multifaceted Mechanisms of Estradiol and Estrogen Receptor Signaling*

open access: yesJournal of Biological Chemistry, 2001
The steroid hormone 17 -estradiol (E2) is a key regulator of growth, differentiation, and function in a wide array of target tissues, including the male and female reproductive tracts, mammary gland, and skeletal and cardiovascular systems.
J. M. Hall, J. F. Couse, K. Korach
semanticscholar   +1 more source

Estradiol mediates fluctuation in hippocampal synapse density during the estrous cycle in the adult rat [published erratum appears in J Neurosci 1992 Oct;12(10):following table of contents]

open access: yesJournal of Neuroscience, 1992
We have found that the density of synapses in the stratum radiatum of the hippocampal CA1 region in the adult female rat is sensitive to estradiol manipulation and fluctuates naturally as the levels of ovarian steroids vary during the 5 d estrous cycle ...
C. Woolley, B. Mcewen
semanticscholar   +1 more source

Metabolism of sex hormones in the aortic wall

open access: yesJournal of Lipid Research, 1968
The metabolism of labeled sex hormones was examined in human, canine, and rat aortas. Isolated arterial tissue converted estrone to estradiol, estradiol to estrone, and estrone sulfate to estrone and estradiol.
Aram V. Chobanian   +3 more
doaj   +1 more source

Invasiveness of endometrial cancer cell lines is potentiated by estradiol and blocked by a traditional medicine Guizhi Fuling at clinically relevant doses

open access: yesFrontiers in Oncology, 2023
The Traditional Chinese medicine, Guizhi Fuling (here called Fuling), has been confirmed in meta-analysis studies to reduce recurrence of endometriosis and improve pregnancy outcomes; however, the possible use of Fuling as a fertility-preserving ...
Sidra Khan   +3 more
doaj   +1 more source

Estradiol Levels Modulate Brain Activity and Negative Responses to Psychosocial Stress across the Menstrual Cycle

open access: yesPsychoneuroendocrinology, 2015
Although ovarian hormones are thought to have a potential role in the well-known sex difference in mood and anxiety disorders, the mechanisms through which ovarian hormone changes contribute to stress regulation are not well understood.
Kimberly M Albert   +2 more
semanticscholar   +1 more source

Influence of chronic ischemic disorders in the prostate on the development of benign prostatic hyperplasia

open access: yesИсследования и практика в медицине, 2020
Purpose of the study. To assess the degree of influence of ischemic disorders in the prostate on the level of androgens.Materials and methods. This was an experimental study that included 20 white non-linear sexually Mature rats. All animals were divided
G. E. Roitberg   +2 more
doaj   +1 more source

Estradiol pretreatment in GnRH antagonist protocol for IVF/ICSI treatment

open access: yesOpen Medicine, 2022
We conducted a systematic review and meta-analysis of all published data to determine the impact of estradiol pretreatment on reproductive outcomes and ovary stimulation characteristics for in vitro fertilization (IVF)/intracytoplasmic sperm injection ...
Zhu Shaomi   +5 more
doaj   +1 more source

Neuroprotective Effects of Estrogen Through BDNF-Transient Receptor Potential Channels 6 Signaling Pathway in the Hippocampus in a Rat Model of Perimenopausal Depression

open access: yesFrontiers in Aging Neuroscience, 2022
Estradiol (E2) has been proven to be effective in treating perimenopausal depression (PD); however, the downstream signaling pathways have not been fully elucidated. Transient receptor potential channels 6 (TRPC6) plays a vital role in promoting neuronal
Qiaoli Song   +12 more
doaj   +1 more source

Effects of Estradiol Withdrawal on Mood in Women With Past Perimenopausal Depression

open access: yesJAMA psychiatry, 2015
IMPORTANCE Perimenopause is accompanied by an increased risk of new and recurrent depression. The coincidence of declining ovarian function with the onset of depression led to the inference that “withdrawal” from physiologic estradiol levels underpinned ...
P. Schmidt   +8 more
semanticscholar   +1 more source

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