FSH Protein (OPPA01017)

Aviva Systems Biology

FSH Protein (OPPA01017)

23

Research Use Only

Lyophilized with no additivesPhysical Appearance: Sterile filtered white or slightly yellow freeze-dried powder

Follitropin subunit beta

Follicle stimulating hormone (FSH) is a hormone synthesised and secreted by gonadotropes in the anterior pituitary gland. FSH and LH act synergistically in reproductionIn women, in the ovary FSH stimulates the growth of immature Graafian follicles to maturation. As the follicle grows it releases inhibin, which shuts off the FSH production. In men, FSH enhances the production of androgen-binding proteinby the Sertoli cells of the testes and is critical for spermatogenesis. In both males and females, FSH stimulates the maturation of germ cells. In females, FSH initiates follicular growth, specifically affecting granulosa cells. With the concomitant rise in inhibin B FSH levels then decline in the late follicular phase. This seems to be critical in selecting only the most advanced follicle to proceed to ovulation. At the end of the luteal phase, there is a slight rise in FSH that seems to be of importance to start the next ovulatory cycle.Like its partner, LH, FSH release at the pituitary gland is controlled by pulses of gonadotropin-releasing hormone(GnRH). Those pulses, in turn, are subject to the estrogen feed-back from the gonads. FSH Human is a glycoprotein produced from urine of post-menopausal women. FSH is a heterodimeric hormone consisting of 92 amino acids a chain and 111 amino acids b chain.

12352202