However, studies by Nelson et al. (2011) and Seifer et al. (2011) among infertile Caucasian women showed that AMH declined in a non-linear pattern with age, which was best described by aquadratic equation; while the most recent study by Naasan et al. (2015) found that AMH declined in a linear biphasic fashion with age [31]. The gene discussed is AMH; the disease is Infertility.