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Genitourinary Changes in Pregnancy. Progesterone causes many changes to the genitourinary system. A pregnant woman may experience an increase in the size of the kidneys and ureter due to the increase blood volume and vasculature. Later in pregnancy, the woman might develop physiological hydronephrosis and hydroureter, which are normal. [33]
Progesterone is well tolerated and often produces few or no side effects. [28] However, a number of side effects are possible, for instance mood changes. [28] If progesterone is taken by mouth or at high doses, certain central side effects including sedation, sleepiness, and cognitive impairment can also occur.
Progesterone is an endogenous steroid hormone synthesized by the placenta during pregnancy. Progesterone production is regulated by the hypothalamic-pituitary-gonadal axis . The HPG axis regulates the release of both central and peripherally generated ovarian hormones.
Progesterone also has a role in skin elasticity and bone strength, in respiration, in nerve tissue and in female sexuality, and the presence of progesterone receptors in certain muscle and fat tissue may hint at a role in sexually dimorphic proportions of those. [93] During pregnancy, progesterone is said to decrease uterine irritability. [94]
Progesterone is the major progestogen produced by the corpus luteum of the ovary in all mammalian species. Luteal cells possess the necessary enzymes to convert cholesterol to pregnenolone, which is subsequently converted into progesterone. Progesterone is highest in the diestrus phase of the estrous cycle.
Progesterone is used as part of hormone replacement therapy in people who have low progesterone levels, and for other reasons. For purposes of comparison with normal physiological circumstances, luteal phase levels of progesterone are 4 to 30 ng/mL, while follicular phase levels of progesterone are 0.02 to 0.9 ng/mL, menopausal levels are 0.03 to 0.3 ng/mL, and levels of progesterone in men ...
More serious side effects include bone loss, blood clots, allergic reactions, and liver problems. [10] Use is not recommended during pregnancy as it may harm the baby. [10] MPA is an artificial progestogen, and as such activates the progesterone receptor, the biological target of progesterone. [4]
Side effects of progestogens include menstrual irregularities, headaches, nausea, breast tenderness, mood changes, acne, increased hair growth, and changes in liver protein production among others. [1] [2] Other side effects of progestogens may include an increased risk of breast cancer, cardiovascular disease, and blood clots. [2]