CD8A and Alzheimer disease: Similarly, the absolute numbers of CD8 + /CD69 + and CD8 + / γδT + significantly increased in the LowAhR and LowAhR + AD groups, whereas they were significantly decreased in the group receiving BJIKT group compared to those in the LowAhR + AD group (CD8 + /CD69 + , p < 0.01; CD8 + /γδT + , p < 0.001).