Related Experiment Video
Updated: Aug 30, 2026

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
[Phytoestrogens in menopausal women: a review of recent findings]
Sylvie Dodin1, Claudine Blanchet, Isabelle Marc
1Département d'obstétrique et de gynécologie, Université Laval, Hôpital St-François d'Assise, Centre hospitalier universitaire de Québec (CHUQ), Québec, Canada. sylvie.dodin@ogy.ulaval.ca
Abstract:
Many women seek alternatives to hormone replacement therapy (HRT). Phytoestrogens are nonsteroidal compounds with estrogenic or antiestrogenic properties. Six of the 16 clinical trials suggest a significant reduction in alleviating symptoms but to a lesser degree than HRT. A meta-analysis showed that phytoestrogens improve lipid profile. The 14 recent clinical trials led, however, to divergent findings. Small clinical trials suggested a protective effect of phytoestrogens on bone metabolism. High concentration of phytoestrogens was associated with a reduction in breast cancer risk in case-control studies.
Related Concept Videos
Menopause
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.
Oogenesis

