INS and Familial prostate cancer: Several studies have shown that risk factors for prostate cancer include age, race, family history, insulin-like growth factors, lifestyle, diet, environmental and occupational exposures (Howlader et al., 2013; Jayadeyappa et al., 2011; Supit et al., 2013; Kwabi-Addo et al., 2010; Gennigens, Menetrier-Caux & Droz, 2006).