In Vitro and In Vivo Effects of IGF 1 Delivery Strategies on Tendon Healing: A Review Full article: Cell cycle control by the insulin like growth factor signal: at the crossroad between cell growth and mitotic regulation PEG MGF Pegylated Mechano Growth Factor IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society Insulin like growth factor 1 promotes cell cycle progression via upregulation of cyclin D1 expression through the phosphatidylinositol 3 kinase nuclear factor B signaling pathway in FRTL thyroid cells Acta Pharmacologica Sinica Powerock Pharma PEG MGF 5mg