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  2. Follicle-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Follicle-stimulating_hormone

    The most common reason for high serum FSH concentration is in a female who is undergoing or has recently undergone menopause. High levels of FSH indicate that the normal restricting feedback from the gonad is absent, leading to an unrestricted pituitary FSH production. FSH may contribute to postmenopausal osteoporosis and cardiovascular disease ...

  3. Hyperestrogenism - Wikipedia

    en.wikipedia.org/wiki/Hyperestrogenism

    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]

  4. Sertoli cell-only syndrome - Wikipedia

    en.wikipedia.org/wiki/Sertoli_cell-only_syndrome

    The testes in men with SCO syndrome are normally small to normal in size, with normal form and consistency; though, some patients may have significant atrophy of the testes. [4] The majority of patients with Sertoli cell-only syndrome (up to 90%) have increased FSH levels, which are typically two to three times normal. [1]

  5. Hypergonadotropic hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypergonadotropic_hypogonadism

    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]

  6. Gonadotropin - Wikipedia

    en.wikipedia.org/wiki/Gonadotropin

    Failure or loss of the gonads usually results in elevated levels of LH and FSH in the blood. [10] [11] LH insensitivity, which results in Leydig cell hypoplasia in males, and FSH insensitivity, are conditions of insensitivity to LH and FSH, respectively, caused by loss-of-function mutations in their respective

  7. Hypothalamic–pituitary–gonadal axis - Wikipedia

    en.wikipedia.org/wiki/Hypothalamic–pituitary...

    This elevation in FSH is important for the recruitment of a new cohort of ovarian follicles in the subsequent cycle. [15] After menstruation begins, FSH levels decrease due to estrogen's negative feedback and inhibin B produced by the developing follicle. FSH stimulates aromatase activity in granulosa cells, converting androgens to estrogen.

  8. What Is Low Testosterone & What Causes It? - AOL

    www.aol.com/low-testosterone-causes-125700734.html

    In a study of men who restricted their sleep to five hours per night, testosterone levels dropped around 10 to 15 percent as a result. Low Energy Levels Low energy is one of the most common ...

  9. Hypergonadism - Wikipedia

    en.wikipedia.org/wiki/Hypergonadism

    Hypergonadism is a condition where there is a hyperfunction of the gonads. [1] It can manifest as precocious puberty, and is caused by abnormally high levels of testosterone or estrogen, crucial hormones for sexual development.

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