For Progesterone we have terms and definitions in 28 topics. The topics are Anti-Aging, Baby, Breast Cancer, Cancer, Canine, Contraception, Dairy Production, Developmental Psychology, Endocrinology, Female Health, Female Health Concerns, Fertility, Gynecological, Gynecology, HIV and AIDs, Hormone Replacement Therapy, Horse Health, Medical, Menopause, Naturopathic, Nutrition, Pituitary, Prostate Cancer, Reproductive Infections, Science, Sex, Sexual Health and Women's Health.

Progesterone (Anti-Aging)

A hormone produced in response to luteinizing hormone (LH) released from pituitary gland. It is required to flush out the uterus if an egg is not fertilized. It is also useful for stimulating the growth of new bone mass.

Progesterone (Baby)

A hormone produced by the ovaries that helps to regulate a woman's reproductive cycle.

Progesterone (Breast Cancer)

A class of female sex hormones primarily responsible for changes in the endometrium in the second half of the menstrual cycle and involved in the development of mammary glands.

Progesterone (Cancer)

A female hormone produced by the ovaries. Progesterone is needed by some cancers for growth.

Progesterone (Canine)

A steroid hormone, C21H30O2, secreted by the corpus luteum of the ovary and by the placenta, that acts to prepare the uterus for implantation of the fertilized ovum, to maintain pregnancy, and to promote development of the mammary glands.

Progesterone (Contraception)

A female hormone whose primary role is to prepare the body for pregnancy, helping to create a soft lining in the uterus for a fertilized egg

Progesterone (Dairy Production)

A steroid hormone secreted by the corpus luteum that prepares the uterus for pregnancy, and prevents the recurrence of the estrous cycle by depressing the release of FSH and LH by the pituitary.

Progesterone (Developmental Psychology)

A hormone secreted by the corpus luteum, active in preparing the uterus for the reception and development of the fertilized ovum and the mammary glands for milk secretion.

Progesterone (Endocrinology)

A hormone secreted by the ovaries which affect many
aspects of the female body, including menstrual cycles and pregnancy.

Progesterone (Female Health)

An important ovarian hormone produced by the ovaries following ovulation during the menstrual cycle. Progesterone rises 1400 percent over a week from the midcycle to its peak during the luteal phase. It acts on specific receptors in every tissue in the body in which estrogen acts. Its primary job is to cause differentiation (maturation) and to stop the proliferation (growth) caused by estrogen. Progesterone causes the endometrium to become secretory and able to accept and nurture a fertilized egg. If fertilization does not occur estrogen and progesterone levels decrease and a period results.

Progesterone (Female Health Concerns)

Female sex hormone that induces changes in the lining of the uterus essential for successful implantation of a fertilized egg. A steroid, progesterone is secreted chiefly by the corpus luteum, a group of cells formed in the ovary after the follicle ruptures during the release of the egg cell. If fertilization does not take place, the secretion of progesterone decreases and menstruation occurs. If fertilization does occur, progesterone is secreted during pregnancy by the placenta and acts to prevent spontaneous abortion; the hormone also prepares the mammary glands for milk production. Progesterone is also synthesized from cholesterol in the cortex of the adrenal gland where it is a precursor for the synthesis of other steroids including testosterone. Synthetic compounds with progesterone like activity have been developed that, along with oestrogen, are used in oral contraceptives.

Progesterone (Fertility)

A naturally occurring hormone, also administered as a medication in injectable, oral and intravaginal formulations. Its role is to prepare the uterine lining for implantation of a fertilized egg. You may at times have bloodwork done to determine the level of progesterone in your body

Progesterone (Gynecological)

Female hormone.

Progesterone (Gynecology)

Female hormone.

Progesterone (HIV and AIDs)

A female HORMONE with anti-ESTROGEN effects. A synthetic version is used as a contraceptive.

Progesterone (Hormone Replacement Therapy)

A female hormone and the principal progestational hormone that is made mainly by the corpus luteum in the ovary and by the placenta. Progesterone prepares the lining (endometrium) of the uterus (the womb) to receive and sustain the fertilized egg and so permits pregnancy. Similarly refers to synthetic versions of the hormone. Also known as progestational hormone.

Progesterone (Horse Health)

Hormone secreted by the corpus luteum, adrenal cortex, and placenta, whose primary function is to prepare the uterus for pregnancy; also called progestin.

Progesterone (Medical)

A female sex hormone that plays many important roles in reproduction, including the thickening of the lining of the uterus during the menstrual cycle; and during pregnancy, the functioning of the placenta, and the initiation of labor

Progesterone (Menopause)

Produced by the ovaries, rising levels of this hormone signal the body to prepare the uterus with a lining of tissue in preparation for a fertilized egg. If no egg is fertilized, levels of this hormone fall, signaling the body to shed the lining and menstruation to take place.

Progesterone (Naturopathic)

This is the hormone secreted after ovulation by the corpus luteum. It is a steroid (a cholesterol with a funny hat), enters receptive cells to stimulate their growth, and acts as an anabolic agent. Estrogen should be viewed as the primary coat underneath all the cycles during a woman's reproductive years, with progesterone, its antagonist, surging for ten or twelve days in ovulatory months. Most of the actions of progesterone cannot occur without estrogen having previously induced the growth of progesterone-receptive binding sites. In the estrus cycle, estrogen stimulates the thickening of membranes (the proliferative phase), and progesterone stimulates their sophistication into organized and secreting mucosa (the secretory phase). The new secretions contain anticoagulants, antimicrobials, and rich mucus fluids. If there is pregnancy, the uterine membranes are fully structured for the long haul; if menses occurs, the thickened tissues can erode away without clotting, becoming infected, or flowing poorly. If there is not enough estrogen, the corpus luteum will not mature. If the corpus luteum is weak, menses becomes disorganized, clotty, and painful. It is also the first part of the cycle to become disorganized in early menopause, since the available ovarian proto-follicles have been reduced over the years to only a few. In earlier years, dozens of potential follicles may attempt maturity each month, with only the strongest one able to reach dominance, form a corpus luteum and an ovum...the rest disintegrating. In a manner of speaking, the better the follicle, the better the corpus luteum and (presumably) the sounder the ovum. Since the number of potential follicles is fixed at birth, by early menopause those that still remain contain a high number of hormone-resistant and unsound protofollicles, resulting in more and more cycles having less predictable estrogen and especially progesterone levels.

Progesterone (Nutrition)

A female steroid hormone.

Progesterone (Pituitary)

A sex hormone which is made in the ovaries and during pregnancy, by the placenta as well; helps to build up the endometrium during the menstrual cycle.

Progesterone (Prostate Cancer)

A specific steroid hormone in the family of progestins secreted by the corpus luteum of the ovary and by the placenta, that acts to prepare the uterus for implantation of the fertilized ovum, to maintain pregnancy, and to promote development of the mammary glands; many tumor cells contain progesterone receptors; used in the treatment of hot flashes in men having suppressions in LH and testosterone; an example of a progestin is Megace® or Depo-Provera®

Progesterone (Reproductive Infections)

A hormone secreted chiefly by the corpus luteum, which develops in a ruptured ovarian follicle (small round structure in the ovary that contains an ovum) during the luteal phase of the menstrual cycle (after ovulation). Progesterone prepares the endometrium for possible implantation by a fertilized ovum. It also protects the embryo, enhances development of the placenta, and aids in preparing the breasts for nursing the new infant.

Progesterone (Science)

Hormone active in the reproductive cycles of female mammals

Progesterone (Sex)

A female hormone produced by the corpus luteum that helps regulate the menstrual cycle and sustain pregnancy.

Progesterone (Sexual Health)

A hormone produced in the ovaries of women that is important in puberty, menstruation, and pregnancy.

Progesterone (Women's Health)

A female hormone produced by the ovaries. Progesterone, along with estrogen, prepares the uterus (womb) for a possible pregnancy each month and supports the fertilized egg if conception occurs. Progesterone also helps prepare the breasts for milk production and breastfeeding.

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