“…More specifically selenium is an essential trace element, which can protect cells from OS (Abdollahi et al, 2001;Brozmanová et al, 2010;Ogunro et al, 2006;Steinbrenner & Sies, 2009) by modulating the expression of selenoprotein genes and anti-inflammatory mechanisms (Duntas, 2009). On the contrary, several studies have reported about the association of selenium deficiency and increased prevalence of ovarian cysts (Harrison et al, 1984), infertility (Paszkowski et al, 1995), and idiopathic miscarriage (Barrington et al, 1996). Supporting that, the beneficial effect of a selenium-based multi-herbal medicine in the letrozole-induced experimental PCO rats has been found to be mediated through the inhibition of synthesis or release of inflammatory mediators, reduction of OS, and maintaining the steroid status (Rezvanfar et al, 2012b).…”