???? ???? ??? ??? ?? ??? ??? ???? ????,????,???? ?? ?? ??? ?? ?? ???? ??? ?? ? ?? ? ??? ??????. ?? ??? ????? ?????.?? ?? ????? ?? ??? ?? ??? ??? ???? ????. A typical neurological attribute of the disorder is impaired myelin generation (dysmyelination). Myelin is a fatty material that insulates nerve cells and promotes the swift transmission of ner