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Luteinizing hormone (LH, also known as luteinising hormone, [1] lutropin and sometimes lutrophin [2]) is a hormone produced by gonadotropic cells in the anterior pituitary gland. The production of LH is regulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus. [ 3 ]
46,XY DSD due to luteinizing hormone resistance or luteinizing hormone beta subunit deficiency This condition is inherited in an autosomal recessive manner [ 1 ] Leydig cell hypoplasia (or aplasia ) ( LCH ), also known as Leydig cell agenesis , is a rare autosomal recessive genetic and endocrine syndrome affecting an estimated 1 in 1,000,000 ...
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]
5-DHT or DHT is a male reproductive hormone that targets the prostate gland, bulbourethral gland, seminal vesicles, penis and scrotum and promotes growth/mitosis/cell maturation and differentiation. Testosterone is converted to 5-DHT by 5alpha-reductase, usually with in the target tissues of 5-DHT because of the need for high concentrations of ...
Men with low serum testosterone levels should have other hormones checked, particularly luteinizing hormone to help determine why their testosterone levels are low and help choose the most appropriate treatment (most notably, testosterone is usually not appropriate for secondary or tertiary forms of male hypogonadism, in which the LH levels are ...
The production of estrogen is controlled by the hypothalamic-pituitary-gonadal axis, the hypothalamus releases gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release luteinizing hormone (LH). [8] LH then help signal the production of estrogen in the ovaries. [14]
It acts similarly to LH, but the larger supply makes it less costly; it also has a longer half-life. In veterinary medicine , equine chorionic gonadotropin (eCG) extracted from pregnant mare serum is used instead on a variety of mammals, sometimes eliciting an immune response in non-horse species.
The luteal phase is characterized by changes to hormone levels, such as an increase in progesterone and estrogen levels, decrease in gonadotropins such as follicle-stimulating hormone (FSH) and luteinizing hormone (LH), changes to the endometrial lining to promote implantation of the fertilized egg, and development of the corpus luteum. In the ...