Crossword clues for estrogen
Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
coined 1927 from comb. form of estrus + -gen. So called for the hormone's ability to produce estrus.
n. (context steroid hormone English) Any of a group of (l en steroids) that are (l en secreted) by the (l en ovaries) and (l en function) as (l en female) (l en sex) (l en hormones).
n. a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics [syn: oestrogen]
Estrogen ( American English) or oestrogen ( Commonwealth English) is the primary female sex hormone. It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics. Estrogen may also refer to any substance, natural or synthetic, that mimics the effects of the natural hormone. The steroid 17β-estradiol is the most potent and prevalent endogenous estrogen, although several metabolites of estradiol also have estrogenic hormonal activity. Synthetic estrogens are used as part of some oral contraceptives, in estrogen replacement therapy for postmenopausal women, and in hormone replacement therapy for trans women.
The name estrogen comes from the Greek (oistros), literally meaning "verve or inspiration" but figuratively sexual passion or desire, and the suffix -gen, meaning "producer of".
Estrogens are synthesized in all vertebrates as well as some insects. Their presence in both vertebrates and insects suggests that estrogenic sex hormones have an ancient evolutionary history. The three major naturally occurring forms of estrogen in women are estrone (E1), estradiol (E2), and estriol (E3). Another type of estrogen called estetrol (E4) is produced only during pregnancy. Quantitatively, estrogens circulate at lower levels than androgens in both men and women. While estrogen levels are significantly lower in males compared to females, estrogens nevertheless also have important physiological roles in males.
Like all steroid hormones, estrogens readily diffuse across the cell membrane. Once inside the cell, they bind to and activate estrogen receptors (ERs) which in turn modulate the expression of many genes. Additionally, estrogens bind to and activate rapid-signaling membrane estrogen receptors (mERs), such as GPER (GPR30).
Usage examples of "estrogen".
It is a nonsteroidal compound that just happens to act like an estrogen in some ways.
Growth-promoting effect of oestriol in a lymphoma lacking estrogen receptors.
In TLC 7, I help you understand the hormone fluctuations of perimenopause, a normal period of change leading up to menopause that usually lasts four to five years, as well as the decline of estrogen during menopause and how this can affect your physical and emotional state.
The decline of estrogen and progesterone, which may happen before the perimenopause, signals the uterus to shed its endometrial lining prematurely.
When estrogen levels begin to drop during perimenopause, testosterone appears to be able to pick up part of the slack.
I watched him walk up the brick walk with his long, relaxed stride, wearing a pale gray sports coat over a black silk T-shirt and black slacks, and my estrogen levels shot up so fast my perimenopause disappeared.
For instance, we know that a low-fat, high-fiber diet reduces blood estrogen levels in women, helping to balance hormones.
Pharmaceutical companies will freeze over before a large, well-controlled, taxpayer-financed PEPI-like trial of unpatentable estriol or triple estrogen ever gets done in the U.
This has to be the conjugated estrogens in his orange juice every morning.
I could separate your estrogens out of a blood sample and synthesize a set of doses to get you back to your pre-Change levels.
This included male and female hormones-testosterone, estrogen, progesterone-which affect fertility, sexual aggressiveness and birth control, and during that period of the fifties when the Pill was just beginning to be used, the subject of steroids commanded wide scientific and commercial interest.
This ties in with their theory that human sexual selection is based on choosing mates whose appearance shows averageness plus symmetry, modified by those features exaggerated by testosterone in men and estrogen in women.
To illustrate: the injection of estrogens will caponize a rooster just as castration (removal of androgens) will.
The conjugated estrogens, the Premarin, the estradiol, the ethinyl estradi-ol, they've all found their way into Seth's diet cola.
Manus cheated on me with Evie, but I still love him so much I'll hide any amount of conjugated estrogen in his food.