Fig. 4From: Presenilin 1 transgene addition to amyloid precursor protein overexpressing transgenic rats increases amyloid beta 42 levels and results in loss of memory retentionOverall performance of Barnes maze Acquisition Training (A) Retention (B), and Reversal Training (C). Daily performance of Acquisition Training (D), and Reversal Training (E). Data is expressed as group mean ± SEM. Different letters above each bar indicates significantly different (p < 0.05) expressionBack to article page