A generic term for naturally occurring steroid hormones containing a prename nucleus; secreted from the corpus luteum and placenta; a lute hormone; implicated in hormonal and pubertal gingivitis.
Pregn-4-ene-3,20-dione. The principal progestational hormone of the body, secreted by the corpus luteum, adrenal cortex, and placenta. Its chief function is to prepare the uterus for the reception and development of the fertilized ovum. It acts as an antiovulatory agent when administered on days 5-25 of the menstrual cycle.
A female sex hormone, secreted by the ovaries, that supports pregnancy and lactation (i.e., milk production).
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 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 cells. 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 flow poorly. If there is not enough estrogen, the corpus luteum will not mature. If the corpus luteum is weak, menses becomes disorganized, dotty, and painful.
A female sex hormone secreted by the ovaries. Progesterone and estrogen regulate changes that occur during the menstrual cycle.
A female sex hormone that prepares the uterus for the fertilized ovum and maintains pregnancy.
A female sex hormone associated with maintaining the lining of the uterus when pregnancy occurs.
A hormone which is produced in the second part of the menstrual cycle by the corpus luteum and which stimulates the formation of the placenta if an ovum is fertilised.
Female steroid hormone produced by the ovaries and the corpus luteum that serves to prepare the uterus for implantation of the fertilized egg (blastocyte). It also serves to stimulate the development of the mammary alveolar system.
A key female hormone produced in the ovaries that works with the hormone estrogen to regulate the menstrual cycle and is important to the development of the placenta and the fetus during pregnancy. A drop in the level of progesterone in the body helps bring on labor.
Hormone produced by the corpus luteum of the ovary, the placenta during pregnancy, and m small amounts by the adrenal cortex; it prepares the uterus for a fertilized egg. Natural and synthetic progesterones and pro-gestational compounds (e.g., norethindrone) are used in oral contraceptives and in drugs to treat abnormal uterine bleeding.
A steroid hormone produced by the corpus luteum that produces changes in the endometrium in preparation for implantation of a fertilized egg.
A female sex hormone produced by the ovaries. Progesterone prepares the endometrium (lining of the uterus) for a fertilized egg. The hormone is vital to a successful pregnancy and a healthy fetus as it promotes the normal growth and functioning of the placenta (the organ that develops in the uterus and nourishes the fetus). Progesterone is also produced in small amounts by the adrenal glands in men and women and in the testicles in men.
A steroid hormone secreted by the corpus luteum of the ovary, the placenta, and also (in small amounts) by the adrenal cortex and testes. It is responsible for preparing the inner lining (endometrium) of the womb for pregnancy. If fertilization occurs it maintains the womb throughout pregnancy and prevents the further release of eggs from the ovary.
The hormone of the corpus luteum of the ovary. After the escape of the ovum from the ruptured follicle, the corpus luteum secretes progesterone, which stimulates the growth and secretion of the endometrial glands of the uterus during the 14 days before menstruation. In the event of pregnancy, the secretion of progesterone continues until the baby’s birth.
A steroid hormone, C21H3002, obtained from the corpus luteum and placenta. It is responsible for changes in the endometrium in the second half of the menstrual cycle preparatory to implantation of the blastocyst. It facilitates implantation by inhibiting uterine motility and stimulates the development of the mammary glands. Progesterone is used to treat patients with menstrual disorders (secondary amenorrhea, abnormal uterine bleeding, luteal phase deficiency) and to manage renal or endometrial carcinoma. In combination with estrogen, it is used for contraception and postmenopausal hormone replacement therapy.
One of the female hormones synthesized both in the ovaries and in the cortex of the adrenal glands on top of the kidneys. Its function is to sustain the endometrium (the inner secretory lining of the womb) and to protect the fertilized ovum (egg) until about the third month of pregnancy.
A hormone produced by the ovaries that controls the development of the endometrium during the menstrual cycle and helps to maintain the uterus during pregnancy.
Female hormone that prepares the womb for pregnancy; secreted primarily by the corpeus luteum.
A natural hormone produced by the corpus luteum the part of the ovary that the egg vacated that prepares the uterus for the reception and development of the fertilized egg.
This is a hormone made from steroids that primes the uterus for the fertilized egg and sustains gestation.
A hormone analogous to estrogen, plays a crucial role in regulating the menstrual cycle by orchestrating the preparation of the uterine lining for a possible pregnancy. Conversely, the culprit responsible for premenstrual syndrome (PMS) symptoms may be the hormonal agent progesterone, which restrains the activity of the neurotransmitter dopamine in the brain.
A hormone produced naturally by the ovary or synthesized artificially, which readies the uterus for the implantation of a fertilized egg.
The hormone produced by the corpus luteum in the ovary, it causes premenstrual alterations in the uterine lining after ovulation and likely reduces uterine contractions during early pregnancy. It’s employed for treating recurring or potential miscarriages and menstrual irregularities. Also known as progestin.