Several studies correlated ASD with autoimmune diseases of the mother including rheumatoid arthritis and celiac disease (Atladóttir et al., 2009) and an increase in the serum level of anti-myelin-basic protein autoantibodies (Mostafa and AL-Ayadhi, 2011; Mostafa and Al-Ayadhi, 2013). Here, MBP is linked to rheumatoid arthritis.