MAG and myeloid sarcoma: For instance, studies have shown that MS pathological correlates, like widening of myelin lamellae and oligodendrocyte apoptosis, are often present in regions separated form inflammation foci (Barnett and Prineas, 2004; Henderson et al., 2009), and that loss of inner myelin sheath-expressed proteins (like the myelin associated glycoprotein, MAG) temporarily precedes that of outer-sheath expressed molecules in newly forming lesions (Aboul-Enein et al., 2003).