In BDNF Met/Met + Val/Met carriers, no significant differences were detected between AD and controls (Figure 1c, Table 2) and according to gender (AD in females, n = 19, 12.11 ± 2.12 pg/ mL vs. males, n = 9, 13.17 ± 0.99 pg/mL p = ns). The gene discussed is BDNF; the disease is Alzheimer disease.