Principal component analysis (PCA) graph demonstrating the effect of vitamin C on the ER proteomic profiles of <i>Wrn</i>^{<i>Δhel/Δhel</i>} mice compared to wild type mice.

<p>The three wild type mice are represented by green triangles, the three <i>Wrn</i>^{<i>Δhel/Δhel</i>} mice are represented by red circles, and the three vitamin C treated <i>Wrn</i>^{<i>Δhel/Δhel</i>} mice are represented by blue squares. X and Y axis show principal component 1 and principal component 2 that explain 21.8% and 17.6% of the total variance, respectively. Prediction ellipses are such that a new observation from the same group will fall inside the ellipse with a probability of 0.95.