KLRD1 and Alzheimer disease: Percentage expression of NK cell inhibiting receptor CD94, however, was upregulated in both BADx and AD patients [BADx median 66.4% (range 55.9 – 76.1%), p < 0.0001; AD median 53.6% (range 43.6 – 62.2%), p < 0.0001; controls median 34.6% (range 27.5 – 42.0%)] (Figures 2G-I).