CXCL10 and familial atrioventricular septal defect: We further evaluated miR-15a-5p and CXCL10 by qRT-PCR and by immunohistochemistry in tissue biopsies of four ECD lesions (two skin biopsies, one para aortic and one cerebellum tissue biopsies as compared to matched healthy tissues from post-mortem autopsy).