Statistical analyses: (1) Description of data using mean and standard deviation for quantitative variables and percentage for qualitative variables. (2) Comparison of PTMDP concentrations between patient groups and between tissue locations (healthy or aortic aneurysms) using the Mann-Whitney test. (3) Search for links between concentrations of tissue PTMDPs, serum, skin autofluorescence, and hematologic markers using the Spearman correlation tests.