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Growth hormone is a peptide hormone secreted by the pituitary gland that stimulates growth and cell reproduction. In the past, growth hormone was extracted from human pituitary glands. Growth hormone is now produced by recombinant DNA technology and is prescribed for a variety of reasons. GH therapy has been a focus of social and ethical ...
Growth hormones in sports refers to the use of growth hormones (GH or HGH) for athletic enhancement, as opposed to growth hormone treatment for medical therapy. Human Growth Hormone is a prescription medication in the US, meaning that its distribution and use without a prescription is illegal. [1]
Claims of exaggerated, misleading, or unfounded assertions that growth hormone treatment safely and effectively slows or reverses the effects of aging. The sale of products that fraudulently or misleadingly purport to be growth hormone or to increase the user's own secretion of natural human growth hormone to a beneficial degree.
Genes for human growth hormone, known as growth hormone 1 (somatotropin; pituitary growth hormone) and growth hormone 2 (placental growth hormone; growth hormone variant), are localized in the q22-24 region of chromosome 17 [7] [8] and are closely related to human chorionic somatomammotropin (also known as placental lactogen) genes.
CJC-1295 may markedly increase plasma growth hormone (GH) and insulin-like growth factor 1 (IGF-1) levels in animals and humans. [1] [2] [3] [5] With a single injection, in human subjects, CJC-1295 DAC may increase plasma GH levels by 2- to 10-fold for 6 days or longer and plasma IGF-1 levels by 0.5- to 3-fold for 9 to 11 days. [3]
IGF-1 levels can be analyzed and used by physicians as a screening test for growth hormone deficiency (GHD), [45] acromegaly and gigantism. [46] However, IGF-1 has been shown to be a bad diagnostic screening test for growth hormone deficiency. [47] [48]
Diagnosis involves blood tests to measure growth hormone levels. [2] Treatment is by growth hormone replacement using synthetic human growth hormone. [1] The frequency of the condition is unclear. [2] Most cases are initially noticed in children. [1] The genetic forms of this disease are estimated to affect about 1 in 7,000 people. [3]
Growth hormone secretagogues or GH secretagogues (GHSs) are a class of drugs which act as secretagogues (i.e., induce the secretion) of growth hormone (GH). [1] They include agonists of the ghrelin/growth hormone secretagogue receptor (GHSR), such as ghrelin (lenomorelin), pralmorelin (GHRP-2), GHRP-6, examorelin (hexarelin), ipamorelin, and ibutamoren (MK-677), [1] [2] and agonists of the ...