FSH
FSH
Follicle Stimulating Hormone (FSH) is made by
the pituitary gland in the brain. Control of FSH production is a
complex system involving hormones produced by the gonads (ovaries or
testes), the pituitary, and the hypothalamus.
In women, FSH
stimulates the growth and maturation of ovarian follicles (eggs) during
the follicular phase of the menstrual cycle. This cycle is divided into two phases, the follicular and the luteal, by
a mid-cycle surge of FSH and luteinizing hormone (LH). Ovulation occurs
shortly after this mid-cycle surge of hormones. During the follicular
phase, FSH initiates the production of estradiol by the follicle, and
the two hormones work together in the further development of the egg
follicle. During the luteal phase, FSH stimulates the production of
progesterone. Both estradiol and progesterone help the pituitary control
the amount of FSH produced. FSH also facilitates the ability of the
ovary to respond to LH. At the time of menopause, the ovaries stop
functioning and FSH levels rise.
In men, FSH stimulates the testes to produce mature sperm and also promotes the production of androgen binding proteins. FSH levels are relatively constant in males after puberty.
Product Specifications:
- Product code: GDB71425
- Calibrators: 0, 5, 10, 25, 50, 100 mlU/ml (2nd IRP 78/549)
- Sample: 50 µl
- Sensitivity: 0.8 mIU/ml
- Total Time: 75 Minutes
- Shelf Life: 18 Months