Growth Delay Due to Insulin-Like Growth Factor I Resistance, also known as resistance to igf-1, is related to insulin-like growth factor i and alzheimer disease, familial, 1, and has symptoms including agitation An important gene associated with Growth Delay Due to Insulin-Like Growth Factor I Resistance is IGF1R (Insulin Like Growth Factor 1 Receptor). Affiliated tissues include pancreatic islet and skeletal muscle, and related phenotypes are delayed skeletal maturation and short stature