Related Experiment Video
Updated: Aug 16, 2026

A Method to Study the Impact of Chemically-induced Ovarian Failure on Exercise Capacity and Cardiac Adaptation in Mice
Published on: April 7, 2014
[Hormonal changes in aging from the viewpoint of the gynecologist]
1Frauenklinik, Kreiskrankenhaus Böblingen.
Abstract:
The major relevant age-related changes that take place in women are caused by estrogen deficiency of rapid onset. This deficiency results in such changes as vaginal and vulval atrophy, atrophic urethrocystitis, breast flabbiness, thinning of the skin and its appendages, and also the severe metabolic changes like osteoporosis and cardiovascular disorders. All of these changes, in concert or alone, are capable of impairing a woman's sex life. Numerous genital complaints can be eliminated by local treatment with estriol cream, estriol vaginal suppositories, or systemic estriol. For the successful treatment of pronounced menopausal symptoms and the prevention of osteoporosis and cardiovascular disorders, estrogens at medium, so-called replacement, doses, given in combination with progestagen, are applied sequentially.
More Related Videos
Related Concept Videos
Oogenesis
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Menopause
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...

