- A five day treatment with daily subcutaneous injections of growth hormone-releasing peptide-2 causes response attenuation and does not stimulate insulin-like growth factor-I secretion in healthy young men. Nijland, E.A., Strasburger, C.J., Popp-Snijders, C., van der Wal, P.S., van der Veen, E.A. Eur. J. Endocrinol. (1998)