Geographically, North America leads the global human growth hormone market, due to increasing proportion of aged population, high incidences of turner syndrome, short bowel syndrome, human growth hormone deficiency and Noonan syndrome. Moreover, the high demand of human growth hormone drugs as performance enhancer and anti-aging drug in North America is driving the growth of the human growth hormone market in the region. Asia-Pacific is the fastest growing region in the global human growth hormone market, which is driven by increasing healthcare expenditures and high incidences of growth hormone deficiency disorders. Moreover, the human growth hormone market is growing due to increasing disposable income and large geriatric population in the emerging countries, such as India and China.
Supplementing with L-glutamine is known for enhancing exercise performance, maintaining acid-base balance and increasing the storage of glycogen in muscle. In an Iranian study, 30 healthy non-athlete males were randomly divided into placebo and glutamine supplementation groups and put through an eight-week resistance training program. Both groups performed the same weight training program three days a week for eight weeks. Both groups increased in performance, but the glutamine groups showed greater increases in lower- and upper-body strength, explosive muscle power, blood testosterone, IGF-1, and HGH compared to the placebo group. ( 16 )
Human growth hormones (HGH) play an important role in normal human growth and development. The major human growth hormone is a protein made up of 191 amino acids, the building blocks of proteins. The production of this protein is controlled by two other hormones secreted by the hypothalamus: growth hormone releasing hormone (GHRH), which controls secretion of human growth hormone (HGH); and growth hormone-inhibiting hormone (GHIH), which inhibits secretion of human growth hormone (HGH). All healthy individuals have measurable levels of hGH throughout life, but there are two notable growth spurts, one at birth and the other at puberty, and hGH plays a vital role at each time. The most obvious effect of human growth hormone (HGH) is on linear skeletal growth (height), but metabolic effects of hGH (the results of hGH activity in the body) on muscle, the liver, and fat cells are a critical part of its function. When any question arises about growth or development, pediatricians may investigate the levels of the major human growth hormone (HGH), its receptors and stimulants, the glands that produce the hormones, and the complex hormone interactions that control normal development. mino acids are biologically important organic compounds. Reference