IGF-I (24-41) (TFA)

IGF-I (24-41) (Insulin-like Growth Factor I (24-41)) TFA is amino acids 24 to 41 fragment of IGF-I. IGF-I TFA, a 70 aa polypeptide hormone, is a trophic factor for both neurons and glial cells. IGF-I TFA is partly responsible for systemic growth hormone (GH) activities. IGF-I TFA has anabolic, antioxidant, anti-inflammatory and cytoprotective actions. IGF-I (24-41) TFA regulates somatic growth and behavioral development[1][2][3].

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[1]Puche JE, et al. Human conditions of insulin-like growth factor-I (IGF-I) deficiency. J Transl Med. 2012 Nov 14;10:224.|[2]D Santucci, et al. IGF-I and IGF-I24-41 but not IGF-I57-70 affect somatic and neurobehavioral development of newborn male mice. Brain Res Bull. 1994;35(4):367-71.|[3]Dan Meng, et al. Insulin-like growth factor-I (IGF-I) induces epidermal growth factor receptor transactivation and cell proliferation through reactive oxygen species. Free Radic Biol Med. 2007 Jun 1;42(11):1651-60.