Table 1. Subjects in AD study.

	Control, n = 9	Incipient, n = 7	Moderate, n = 8	Severe, n = 7
Age	85.3 ± 2.7	90 ± 2.1	83.4 ± 1.1	84 ± 4.0
NFT	2.7 ± 1.0	9.4 ± 1.8	25.6 ± 3.5	32.7 ± 7.2
Braak	2.1 ± 0.4	5 ± 0.4	5.6 ± 0.2	5.9 ± 0.1
MMSE	27.7 ± 0.5	24.3 ± 1.1	16.5 ± 0.6	6 ± 1.4
PMI	2.6 ± 0.2	3.3 ± 0.6	3.2 ± 0.2	3 ± 0.1

Subjects were assigned to four groups reflecting different levels of AD severity or Control (see Methods). n, number of subjects in each group; Age, age at death; NFT, neurofibrillary tangle count; Braak, Braak stage; MMSE, adjusted Minimental Status Exam (see Methods); PMI, postmortem interval. Values are mean ± SEM.