Research Article

Lysine Reacts with Cholesterol Hydroperoxide to Form Secosterol Aldehydes and Lysine-Secosterol Aldehyde Adducts

Figure 1

Extracted ion chromatogram (a) and the corresponding mass spectrum (b) based on the protonated molecular ion at m/z 419 that could arise from unreacted cholesterol hydroperoxide 4 or secosterol aldehydes 2 and 3.
(a)
(b)