Growth hormone secretagogue receptor secretagogue receptor is activated, a variety of different intracellular signaling cascades can result, depending on the cell type in which the receptor is expressed. These intracellular signaling cascades include mitogen-activated protein kinase (MAPK)), protein kinase A (PKA), protein kinase B (PKB), also known as AKT), and AMP Activated Protein Kinase (AMPK) cascades. It is well-characterized that activating the growth hormone secretagogue receptor with ghrelin induces an orexigenic state, or general feeling of hunger. However, ghrelin may also play a role in behavioral reinforcement. Studies in animal models, found that food intake increased when ghrelin was specifically administered to just the
Growth hormone therapy shortness with normal test results as a disease rather than the extreme end of the normal height range Recombinant growth hormone available in the U.S. (and their manufacturers) included "Nutropin" (Genentech), "Humatrope" (Eli Lilly and Company), "Genotropin" (Pfizer), "Norditropin" (Novo Nordisk), "Tev-Tropin" (Teva) and "Saizen" (Merck Serono). The products are nearly identical in composition, efficacy, and cost, varying primarily in the formulations and delivery devices. Growth hormone (GH l) is also called somatotropin (British: somatotrophin). The human form of growth hormone is known as human growth hormone, or hGH (ovine growth hormone, or sheep growth hormone, is abbreviated oGH). GH