However, the authors noted that women with postpartum depression and suicidality had statistically significantly lower mean BDNF levels as compared to women without postpartum depression and suicidality (1.50 ± 1.38 vs. 2.32 ± 1.28 ng/ml, p = 0.026) [31]. The gene discussed is BDNF; the disease is postpartum depression.