“…Ferula species from the family Apiaceae are rich sources of biologically active natural products including sulphur-containing compounds (Mozaffarian, 1996;Iranshahi et al, 2003a;Iranshahi et al, 2006;Iranshahi, 2012), sesquiterpene coumarins (SCs) (Iranshahi et al, 2004;Iranshahi et al, 2010a;Iranshahi et al, 2010b;Esmail Nazari and Iranshahi, 2011;Kasaian et al, 2014a), and sesquiterpenes (Iranshahi et al, 2003b;Iranshahi et al, 2008;Kasaian et al, 2014b). Some studies showed that SCs were able to enhance the cytotoxicity of * anticancer compounds (Behnam Rassouli et al, 2009;Neshati et al, 2009;Rassouli et al, 2011).…”