Follicle-stimulating hormone (FSH) Flashcards
It is a hormone synthesized and secreted by gonadotropes in the anterior pituitary gland.
regulates the development, growth, pubertal maturation, and reproductive processes of the human body. FSH and Luteinizing hormone (LH) act synergistically in reproduction.
Important markers in diagnosing fertility and menstrual cycle disorders
Follicle-stimulating hormone (FSH)
Structure
FSH is a _________________
Its structure is similar to those of LH, TSH, and hCG
The sugar part of the hormone is composed of
glycoprotein
fucose, galactose, mannose, galactosamine, glucosamine, and sialic acid
Activity
FSH regulates the development, growth, pubertal maturation, and reproductive processes of the human body.
In both males and females, FSH stimulates the maturation of ______ cells.
Like its partner, LH, FSH release at the pituitary gland is controlled by pulses of gonadotropin-releasing hormone (GnRH).
germ
Disease states
FSH levels are normally _____ during childhood and, in females, high after ___________.
low; menopause
High levels of Follicle-Stimulating Hormone are indicative of situations where the normal restricting feedback from the _______ is absent, leading to an unrestricted pituitary FSH production. Whereas this is _________ in females leading up to and during postmenopause, it is ___________ during the reproductive years.
gonad; normal; abnormal
If the FSH level is high during the reproductive years, this may be a sign of:
- Premature menopause also known as Premature Ovarian Failure
- Poor ovarian reserve also known as Premature Ovarian Aging
- Gonadal dysgenesis, Turner syndrome
- Castration
- Swyer syndrome
- Testicular failure.
also known as Premature Ovarian Failure
Premature menopause
also known as Premature Ovarian Aging
Poor ovarian reserve
Diminished secretion of FSH can result in failure of gonadal function (hypogonadism). This condition is typically manifested in males as failure in production of normal numbers of ______. In females, __________of reproductive cycles is commonly observed.
sperm; cessation
Conditions with very low FSH secretions are:
- Polycystic Ovarian Syndrome
- Polycystic Ovarian Syndrome + Obesity + Hirsutism + Infertility
- Kallmann syndrome
- Hypothalamic suppression
- Hypopituitarism
- Hyperprolactinemia
- Gonadotropin deficiency