Assay

Myelin-associated glycoprotein (MAG) antibodies

Key Words

Myelin-associated glycoprotein antibodies, MAG

 Specimen Collection

Serum (brown)

Turnaround time

14 days                                                                                                                                                                    

  This test is referred to another centre:                                                                                                                            

Department of Immunology                                                                                                                                            

The Churchill Hospital Headington

 Oxford 

OX3 7LJ 

  Tel: 01865 225995                                                                                                                                                         

Fax: 01865 225990

Test indications

IgM autoantibodies against MAG are found in sensory (rather than motor) neuropathies and IgM paraprotein associated neuropathies. The determination of MAG antibodies helps to separate IgM associated neuropathies from other commonly acquired polyneuropathies (e.g. chronic inflammatory demyelinating polyneuropathy). MAG antibodies are believed to be pathogenic.

Methodology

Contact referral centre

Interferences

Contact referral centre

Reference Range

Negative <1000 BTU

Analytical error

Contact referral centre

Reference change value

N/A