atrial septal defect type 6

(redirected from ASD6)

atrial septal defect type 6

A rarely reported congenital heart malformation (OMIM:613087) that is clinically identical to other ASDs, which are characterised by a communication of blood flow between the left and right atria. ASD6 is linked to a defect of TLL1, which encodes an M12A family peptidase that processes procollagen C-propeptides (e.g., chordin, pro-biglycan and pro-lysyl oxidase).
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The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) unified most of the previously identified developmental disorders--childhood autism, Asperger's syndrome, childhood disintegrative disorder, atypical autism, and Rett's Syndrome--into a single diagnostic entity called autism spectrum disorder (ASD); Rett's Syndrome was excluded from ASD because Retts' syndrome was different from the other disorders included in ASD6.