GNRHR2
GNRHR2: The Essential Regulator of Puberty
Description
Gonadotropin-releasing hormone receptor 2 (GNRHR2) is a G protein-coupled receptor (GPCR) that plays a crucial role in regulating the onset of puberty and reproductive function. It is expressed in the pituitary gland and hypothalamus, where it binds to gonadotropin-releasing hormone (GnRH) and initiates a signaling cascade that stimulates the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). LH and FSH, in turn, regulate the development and function of the gonads (ovaries and testes).
Associated Diseases
Mutations in the GNRHR2 gene can lead to a range of disorders that affect puberty and reproductive health:
- Kallmann syndrome: A rare genetic disorder characterized by delayed or absent puberty, anosmia (loss of smell), and impaired growth hormone secretion.
- Idiopathic hypogonadotropic hypogonadism (IHH): A condition in which the pituitary gland fails to produce LH and FSH, leading to delayed or absent puberty and infertility.
- Central precocious puberty (CPP): A condition in which puberty begins abnormally early, before the age of 8 years in girls and 9 years in boys.
- Osteoporosis: A condition characterised by decreased bone density and increased risk of fractures, which can be associated with IHH.
Did you Know ?
Approximately 1 in 10,000 individuals worldwide are affected by Kallmann syndrome, the most common disorder associated with GNRHR2 mutations.
