One growth hormone molecule binds asymmetrically to two subunits of a dimeric GHR. A recent study, reported in 2005, suggested that inactive GHR dimers are already present on the cell surface ...

Human growth hormone (hGH) is linked to muscle mass, weight loss, and increased athletic performance. You produce hGH naturally, but you can also get injections of recombinant growth hormone (rhGH).

development and growth, cognitive function, sexual function, and reproduction. Hormones are chemical messengers secreted directly into the blood, which carries them to organs and tissues to exert ...