(estradiol, estrone, estriol) are predominately female hormones, and in adults, they are important for maintaining the health of the reproductive tissues, breasts, skin and brain. Excessive estrogens can cause fluid retention, weight gain, migraines and overstimulation of the breasts, ovaries and uterus, leading to cancer. Insufficient estrogen levels can lead to hot flushes, vaginal dryness, rapid skin aging, urinary problems, excessive bone loss and possible acceleration of dementia. An excess of estrogen, relative to testosterone, is thought to play a role in the development of prostate problems in men. Most scientists now agree that by-products of estrogen metabolism are the cause of both breast and prostate cancers.
female sex hormones from the ovaries; they support development/maintenance of female reproductive structures and secondary sex characteristics, fluid and electrolyte balance, and protein anabolism; e.g., beta-estradiol, estrone, and estriol
female sex hormones produced by the ovaries, responsible for development of secondary feminine sex characteristics. Together with progesterone these hormones also regulate changes that occur each menstral cycle. ( More? Human Menstrual Cycle)
a class of sex hormones associated with the development and maintenance of secondary female characteristics and control of the cyclical changes in the reproductive cycle. They also are required for pregnancy maintenance and have an anabolic effect on protein metabolism and water retention.
Female sex hormones, a group of hormones that are produced mainly by the ovaries. They are essential for normal sexual development (the breasts, vagina, womb, broad hips and rounded figure etc.) and for the reproductive system (make the cervical mucus amenable to the entry of sperm, prepare the endometrium and regulate the production of FSH and LH).
sex steroidal hormones, elaborated chiefly by the ovaries, characterized by their ability to induce estrus in the female mammal. The three most important estrogens in humans are estrone, estradiol and estriol. Small amounts of estrogens are secreted by the adrenal glands in both genders. The ovaries, adrenals, placenta and many other tissues contain aromatase which converts androgens (mostly androstenedione) into estrogens.
A group of chemically related compounds naturally produced in the female ovaries and in the adrenal glands of both sexes. These are also called female sex hormones because they maintain the growth and function of female reproductive organs.
Female sex hormones. The most important estrogens produced by the body are estradiol, estrone and estriol. Estrogens are produced mainly in the maturing ovarian follicles, also in the adrenal glands, in the placenta and in fatty tissue. They are responsible for development of the female sexual characteristics, regulate the female reproductive functions together with progesterone and have numerous other effects on the metabolism. Synthetic estrogens are used as drugs.
A group of three steroid hormones that convey female characteristics and control fertilization. The production of estrogen is stimulated by follicle-stimulating hormone (FSH), which uses cyclic AMP as its second messenger.
(or oestrogens) are a group of steroid compounds that function as the primary female sex hormone. They are produced primarily by developing follicles in the ovaries, the corpus luteum and the placenta. Some estrogens are also produced in smaller amounts by other tissues such as liver, adrenal glands and the breasts. These secondary sources of estrogen are especially important in post-menopausal women.
Female sex hormones that must be present for secondary sexual characteristics of the female to develop. Estrogens serve many functions in the body, including preparation of the uterus to receive a fertilized egg.
The female sex hormones. First recognized around 1915, estrogen is responsible for the development of the secondary feminine sex characteristics, which include breasts, rounded hips, and pubic hair. Together with progesterone, another female hormone made by the ovaries, estrogen regulates the changes that occur with each monthly period and prepares the uterus for pregnancy. See Estradiol.
A group of female sex hormones produced principally by the ovaries. They are responsible for the development of female body characteristics and hair distribution, and for preparing the reproductive system for pregnancy. See also androgens.