HGH (Human Growth Hormone) Research Review: Somatotropin Structure, GH-Receptor Signaling, and the IGF-1 Axis
A research-focused overview of human growth hormone (somatotropin), summarizing its 191-amino-acid structure, growth hormone receptor and JAK-STAT signaling, the IGF-1 axis, pulsatile secretion, and the endpoints used to study body composition and metabolic outcomes in preclinical and clinical settings.