Proposed signaling pathways for IGF I and GH with regard to cell Download Scientific Diagram Growth Hormone IGF 1 Signaling Pathway Sino Biological Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf Normal Physiology of Growth Hormone in Normal Adults Endotext NCBI Bookshelf The GH IGF 1 axis in ageing and longevity Nature Reviews Endocrinology GHRH stimulated pituitary small extracellular vesicles inhibit hepatocyte proliferation and IGF 1 expression by its cargo miR 375 3p Journal of Nanobiotechnology Springer Nature Link