Figure 3From: Interrelationship between Changes in the Amyloid β 42/40 Ratio and Presenilin 1 ConformationCytotoxicity of Aβ treatment. Relative levels of the lactate dehydrogenase (LDH) activity in the conditioned medium after Aβ treatments. 1% Tx-100 is used as a positive control. n = 21 (vehicle), n = 18 (1:9), n = 15 (3:7), n = 18 (4:6), n = 17 (10:0), n = 18 (Tx-100), mean ± SEM, two-tailed unpaired Student t test. Aβ — amyloid β, Tx-100 — Triton X-100.Back to article page