3d image of somatotropin skeletal formula

somatotropin growth hormone gh human hgh peptide cell reproduction regeneration development growth igf-1 somatotropic cells anterior pituitary hormone deficiency vitality anabolic blood tests livestock industrial agriculture bovine milk production gene amino acids receptor hormone-binding protein hormone-inhibiting ghih hormone-releasing ghrh 3d neurotransmitter agonist neuromodulatory nervous system brain endocannabinoid appetite memory signaling neuroscience molecule molecular formula structural structure