Knowra Estrogen Estrogen Estrogens are steroid hormones that regulate reproductive development and reproductive tissues. They also influence bone, brain, cardiovascular, and other bodily systems.
Estradiol : The most potent and abundant estrogen during reproductive years, produced chiefly by the ovaries. It is the principal estrogen driving many effects of the hormone group.
Steroid hormone : A hormone derived from cholesterol that can regulate cells through intracellular or membrane-associated receptors. Estrogens belong to this chemical and functional hormone family.
Menopause hormone therapy : Treatment using hormones to relieve symptoms associated with menopause, sometimes including estrogen alone or with a progestogen. Estrogen can relieve menopausal symptoms, while treatment choice depends on individual risks.
Bone remodeling : The ongoing process in which bone tissue is resorbed and replaced. Estrogen helps restrain bone resorption and preserve skeletal strength.
Progesterone : A steroid hormone involved in the menstrual cycle, pregnancy, and preparation of the uterus for implantation. It often balances estrogen’s growth-promoting effects on the endometrium.
Estrogen receptor : A protein that binds estrogens and changes gene expression or activates rapid cellular signaling. These receptors translate estrogen exposure into cellular responses.
Estrone : An estrogen with weaker activity than estradiol, especially prominent after menopause. It is one of the principal naturally occurring estrogens.
Hormonal contraception : Methods that use hormones to prevent pregnancy by suppressing ovulation, altering cervical mucus, or changing the uterine lining. Many contraceptives use estrogen with a progestogen to suppress ovulation.
Endometrium : The inner lining of the uterus, which changes during the menstrual cycle and supports implantation. Estrogen stimulates its growth during the first half of the menstrual cycle.
Testosterone : A steroid hormone that supports reproductive function and development of male-associated traits in people of all sexes. It is an androgen and estrogen precursor, but its primary actions differ.
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