BRD2 and Infertility: Interestingly, although the feasibility of FSH as treatment of infertile men with oligozoospermia has been investigated by many studies, with a recent one even proposing that possible responders to FSH treatment may be identified by means of epigenetic biomarkers [62], very few studies sought to evaluate the effect of FSH alone to improve the chance of SRR in patients with NOA.