progestagenów

Progestagens, also known as progestins, are a group of steroid hormones that play a crucial role in the female reproductive system, particularly during menstruation, pregnancy, and embryogenesis. The primary and most potent natural progestagen is progesterone, produced mainly by the corpus luteum in the ovary after ovulation and also by the placenta during pregnancy. Synthetic progestagens, often referred to as progestins, are manufactured compounds that mimic the effects of natural progesterone and are widely used in medicine.

The main functions of progestagens include preparing the uterus for pregnancy by thickening the endometrium, maintaining pregnancy by preventing uterine contractions and supporting placental development, and inhibiting the release of further eggs from the ovary. They also have effects on other parts of the body, including the breasts, where they contribute to mammary gland development.

In medical applications, progestagens are most commonly found in hormonal contraceptives, such as birth control pills, patches, and injections, where they work by preventing ovulation and thickening cervical mucus. They are also used in hormone replacement therapy to manage menopausal symptoms and treat certain gynecological conditions like endometriosis, abnormal uterine bleeding, and infertility. The specific type and dosage of progestagen used depend on the intended medical purpose.