Genotype-phenotype correlation in pseudoxanthoma elasticum

Background and aims: Pseudoxanthoma elasticum (PXE) is caused by variants in the ABCC6 gene. It results in calcification in the skin, peripheral arteries and the eyes, but has considerable phenotypic variability. We investigated the association between the ABCC6 genotype and calcification and clinical phenotypes in these different organs.Methods: ABCC6 sequencing was performed in 289 PXE patients. Genotypes were grouped as two truncating, mixed, or two non-truncating variants. Arterial calcification mass was quantified on whole body, low dose CT scans; and peripheral arterial disease was measured with the ankle brachial index after treadmill test.

Source: Atherosclerosis - March 13, 2021 Category: Cardiology Authors: Jonas W. Bartstra, Sara Risseeuw, Pim A. de Jong, Bram van Os, Lianne Kalsbeek, Chris Mol, Annette F. Baas, Shana Verschuere, Olivier Vanakker, Ralph J. Florijn, Jeroen Hendrikse, Willem Mali, Saskia Imhof, Jeannette Ossewaarde-van Norel, Redmer van Leeuw Source Type: research