Moderately elevated levels of CRP were detected in the plasma of 8/19 XP patients tested, the values being 4.37, 4.41, 5.61, 7.61, 8.48, 9.31, 9.72 and 19.7 μg/mL [8.05 (5.31-9.41) μg/mL]. This evidence concerns the gene CRP and xeroderma pigmentosum.