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Luteinizing hormone (LH, also known as luteinising hormone, [1] lutropin and sometimes lutrophin [2]) is a hormone produced by gonadotropic cells in the anterior pituitary gland. The production of LH is regulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus. [ 3 ]
GnRH modulators affect the secretion of the gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which in turn affects the gonads, influencing their function and hence fertility as well as the production of sex steroids, including that of estradiol and progesterone in women and of testosterone in men.
Signs of hyperestrogenism may include heightened levels of one or more of the estrogen sex hormones (usually estradiol and/or estrone), lowered levels of follicle-stimulating hormone and/or luteinizing hormone (due to suppression of the hypothalamic–pituitary–gonadal axis by estrogen), and lowered levels of androgens such as testosterone (generally only relevant to males). [1]
Hypergonadotropic hypogonadism (HH), also known as primary or peripheral/gonadal hypogonadism or primary gonadal failure, is a condition which is characterized by hypogonadism which is due to an impaired response of the gonads to the gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and in turn a lack of sex steroid production. [1]
The cost varies, as with all medication, from country to country, it is about $150/month in the US, and about €60 in Germany. Transdermal testosterone has the advantage of delivering a consistent supply of hormones over a given period and having a simple method of diffusion .
Menopur, 5 mL vials containing 75 IU FSH and 75 IU LH. Repronex, vials containing either 75 IU FSH and 75 IU LH, or 150 IU FSH and 150 IU LH. Common side effects of preparations containing FSH and LH are: [4] Mild bloating; Pain, swelling, or irritation injection site; Rash at injection site or other part of body; Stomach pain or pelvic pain
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As a consequence, levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) fall after a short period of time. From that point forward, as long as histrelin is administered, the levels of LH and FSH in the blood remain low. [9] [10] This prolonged lowering of LH and FSH levels is the rationale for therapy using GnRH agonists.