See also: hyperprolactinemia - prolactin and pregnancy
which has the breast as its target organ. It is therefore a typically female hormone that in puberty participates together with estrogen in the development of the breast.
In the female athlete, an excess of prolactin is, together with other hormones, at the basis of what is called the triad of the female athlete, a rather serious condition, also associated with overtraining, characterized by osteoporosis, amenorrhea and eating disorders generally.
Even during particularly stressful events such as fasting, acute myocardial infarction, burns and prolonged psycho-physical stress, the secretion of prolactin increases significantly. In these conditions the organism makes a desperate attempt to survive, increasing support for primary vital functions (heart, brain, kidneys, etc.) and at the same time turning off all "accessory" functions. Sexual desire and muscle mass in such conditions are completely superfluous and that is why prolactin goes off, together with other hormones, first of all the production of testosterone and then of all the other gonadotropins (FSH and LH). This explains the hypersecretory effects of prolactin that we face previously (impotence in men, alteration of menstrual flow in women and mobilization of fats to ensure energy supply to vital organs).
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significantly reduces the production of milk by the mammary glands.
The effects of this hormone on the male organism have not yet been fully defined. A "hypersecretion of prolactin in men" correlates with lack of sexual desire, gynecomastia and impotence. One function of prolactin is in fact to inhibit testosterone and mobilize the fatty acids.
In females, an excessive production of this hormone is accompanied by galactorrhea (secretion of milk in the absence of pregnancy) and suspension of the menstrual cycle. This condition, if external to pregnancy, is often caused by a small pituitary adenoma (neoplasm).
In the female athlete, an excess of prolactin is, together with other hormones, at the basis of what is called the triad of the female athlete, a rather serious condition, also associated with overtraining, characterized by osteoporosis, amenorrhea and eating disorders generally.
Even during particularly stressful events such as fasting, acute myocardial infarction, burns and prolonged psycho-physical stress, the secretion of prolactin increases significantly. In these conditions the organism makes a desperate attempt to survive, increasing support for primary vital functions (heart, brain, kidneys, etc.) and at the same time turning off all "accessory" functions. Sexual desire and muscle mass in such conditions are completely superfluous and that is why prolactin goes off, together with other hormones, first of all the production of testosterone and then of all the other gonadotropins (FSH and LH). This explains the hypersecretory effects of prolactin that we face previously (impotence in men, alteration of menstrual flow in women and mobilization of fats to ensure energy supply to vital organs).
