Dehydroisoandrosterone (DHA) in maternal and fetal blood after pregnancy is converted into E2 and E140:60 in placental tissue.Estradiol (E2), a steroid hormone, is released into the blood mainly by ovary, placenta or testis secretion. E2 is the most biolo

Follicle stimulating hormone (FSH) is a glycoprotein hormone with a molecular weight of 30,000, secreted by the anterior pituitary gland.There are alpha and beta chains, whose main physiological function is to act on the gonads, to promote folliculogenesi

Luteinizing Hormone (LH) is a glycoprotein hormone secreted by the anterior pituitary gland with a molecular weight of 26,000 and consists of alpha and beta subunits. Its main physiological function is to promote follicular maturation and estrogen synthes

Prolactin (PRL) is a polypeptide with a molecular weight of 22,000 secreted by the anterior pituitary gland and consists of 198 amino acid residues. Its structure is similar to that of hGH. PRL secretion is regulated by prolactin release stimulation (PRH)

The true progesterone in human body is progesterone. The corpus luteum of women with normal menstrual cycle is the main source of progesterone. The progesterone production rate is about 23mg/24h before ovulation. After ovulation, the corpus luteum is form

Testosterone and follicle-stimulating hormone together promote sperm formation and maturation, and are associated with sperm motility and sperm tube metabolism, and testosterone stimulates each stage of sperm meiosis.Testosterone can promote protein synth

Human chorionic gonadotrophin (HCG) is a glycoprotein hormone with a molecular weight of 36700 secreted by human placental trophoblast cells.The 37 amino acids in the protein part constitute two subunits, alpha subunit is the same as FSH, LH and TSH, only