Related Experiment Video
Updated: Mar 1, 2026

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
[HORMONE REPLACEMENT THERAPY AFTER GYNECOLOGICAL MALIGNANCIES]
1Obstetrics and Gynecology, Gynecological Oncology Unit, Lis Maternity Hospital Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University.
Introduction:
Treatment of gynecological malignancies can cause an abrupt onset of menopausal symptoms along with associated long term morbidity. Hormone replacement therapy (HRT) is the most effective treatment to alleviate these symptoms but the safety of HRT among gynecologic oncology patients remains controversial. We conducted a review of the published literature on the risk of recurrent disease among gynecologic cancer patients using HRT. Our research revealed a shortage of prospective, randomized trials on this important subject. The current evidence, mainly cohort studies, did not find an increased risk of recurrence for endometrial cancer in women with early stage disease or increased risk for recurrent ovarian epithelial cancer among HRT users after oncological treatment. Vulvar cancer and most cases of cervical cancer are presumably hormone independent malignancies and the small number of published works did not find an increased risk of recurrence among HRT users. In summary, according to current literature, there is no clear contraindication to HRT among gynecological cancer patients. Treatment should be individualized and the lack of good evidence, along with the advantages and possible disadvantages of this treatment, should be discussed with patients.
More Related Videos
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...
Disorders of the Female Reproductive System
Gonadal and Placental Hormones
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
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...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...

