We also found a higher percentage of CD3+ (AD: 72.9 ± 12.69 vs. CD: 68.48 ± 11.86, p = 0.0049) and CD8+ T cells (AD: 33.43 ± 14.56 vs. CD: 30.67 ± 12.85, p = 0.05), and higher CD56+ CD16+ NK cells (AD: 16.95 ± 7.85 vs. CD: 19.24 ± 8.84, p = 0.035). The gene discussed is CD8A; the disease is Alzheimer disease.