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What is "progesterone"

Crossword clues for progesterone

progesterone
Longman Dictionary of Contemporary English
progesterone
noun
EXAMPLES FROM CORPUS
▪ As pregnancy progresses, the placenta secretes more progesterone which peaks midway into the third trimester and then levels off.
▪ Elevated progesterone levels mimic pregnancy and this delays ovulation, prevents fertilisation or stops implantation of the embryo in the womb.
▪ It appears likely that a fairly complicated interaction between oestrogen, progesterone and a pituitary hormone known as oxytocin is involved.
▪ It should be noted that pregnanediol is a biologically inactive metabolite of progesterone.
▪ Prostaglandins destroy the corpus luteum, as explained above, and thus end the secretion of progesterone.
▪ Some women get good results from a vaginal suppository of progesterone.
▪ The progestogens have the same effect on the cat's body as the natural pregnancy hormone, progesterone.
▪ Women may respond to the unpleasant feelings associated with the peak progesterone levels by increasing their caffeine intake.
Douglas Harper's Etymology Dictionary
progesterone

female steroid sex hormone which prepares the uterus for child-bearing, 1935, from German Progesteron, from progestin (from which substance it was obtained), which had been coined 1930 from pro- (see pro-) + Latin gestare, literally "to carry about" (see gestation), on notion of "substance which favors gestation." Also see -one.

Wiktionary
progesterone

n. 1 (context steroid hormone uncountable English) A steroid hormone, secreted by the ovaries, whose function is to prepare the uterus for the implantation of a fertilized ovum and to maintain pregnancy. 2 (context steroid drug countable English) A synthetic version of the compound, used in contraceptive pills and other pharmaceutical products.

WordNet
progesterone

n. a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy [syn: Lipo-Lutin]

Wikipedia
Progesterone

Progesterone (abbreviated as P4), also known as pregn-4-ene-3,20-dione, is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. It belongs to a group of steroid hormones called the progestogens, and is the major progestogen in the body. Progesterone is also a crucial metabolic intermediate in the production of other endogenous steroids, including the sex hormones and the corticosteroids, and plays an important role in brain function as a neurosteroid.

It is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system.

Usage examples of "progesterone".

Estrogens and progesterone are just part of a complex and closely interlinked hormonal system that includes many other hormones, including testosterone, DHEA, pregnenolone, and melatonin, to name just a few.

In one remarkable clinical trial, scientists studying premenopausal women with normal hormone levels and regular menstrual cycling found that bone metabolism rises and falls in harmony with the level of progesterone.

Otherwise there would be confusion with the third of the pituitary gonadotrophins, which carries on the work of the second, acting to maintain the corpus luteum, once formed, and to stimulate the production of progesterone.

Progesterone creams are available in over-thecounter form in many pharmacies and natural food stores, mostly as components of cosmetic creams.

The decline of estrogen and progesterone, which may happen before the perimenopause, signals the uterus to shed its endometrial lining prematurely.

Natural progesterone is usually supplied in the form of a transdermal cream that is applied to the skin on a schedule synchronized with the menstrual cycle.

Progesterone resembles the corticoids more than it does the estrogens.

The chief difference between progesterone and the corticoids is that the latter have a hydroxyl group on carbon-2i, whereas progesterone does not.