“…Although involvement of general organs in MS has been reported, its implication in disease pathogenesis is not clear. In addition, demyelinating diseases similar to MS have been occasionally reported in systemic autoimmune diseases, such as autoimmune thyroid disease, myasthenia gravis, rheumatoid arthritis and systemic lupus erythematosus (SLE) (Achari et al, 1976;Aita et al, 1974;Meloff, 1980;Tanphaichitr, 1980). Hypocomplementemia and circulating immune complexes have also been demonstrated in MS (Tachovsky et al, 1976;Tanphaichitr, 1980).…”