MBP and myeloid sarcoma: Using the same method and test system, it was shown that the indexes of anti-MBP Abs for CSF of the 15 MS patients in terms of the same dilution CSF and serum preparations, varied from 2×10−4 to 4.3×10−3 A450 units, in average (1.4±0.72)×10−3 A450 units (Fig. 3).