Elastin expression is significantly decreased in the aorta and lung of an SIOD patient. (A) Volcano plot comparing expression of atherosclerosis-related genes in the aorta of SD120 to control aorta. Note the markedly reduced expression of elastin (ELN). Solid grey lines: 4-fold change; solid black line: no change; dotted line: p = 0.01. Grey dots depict genes with decreased expression and black dots depict those with increased expression. (B) Relative elastin protein in the aortic wall of SD120 compared to control. Total elastin protein was measured with the Fastin Elastin Assay. Error bars represent one standard deviation. (C) Plot showing the level of ELN mRNA in SD120 and control lung tissue measured by qRT-PCR. The mRNA levels were standardized to GAPDH mRNA levels and plotted relative to the control. Note the markedly decreased ELN expression. Error bars represent one standard deviation. ** = p < 0.01.