Journal
ACTA NEUROLOGICA SCANDINAVICA
Volume 112, Issue 2, Pages 97-102Publisher
WILEY
DOI: 10.1111/j.1600-0404.2005.00418.x
Keywords
MRZ reaction; multiple sclerosis; neuroborreliosis; immunological variables
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Objectives - The aims were to investigate the frequency of intrathecal synthesis of specific antibodies against measles (M), rubella (R) and varicella zoster (Z) viruses (MRZ reaction) as a diagnostic marker between multiple sclerosis (MS) and neuroborreliosis (NB) groups and to postulate the most typical cerebrospinal fluid (CSF) variables pro. le of these entities. Methods - Three cohorts of patients were investigated: MS (n = 42), NB (n = 27) and other neurological diseases (OND) (n = 15). Measles, rubella, varicella zoster and borrelia-specific IgG antibodies were measured by ELISA, Q(alb) (CSF/serum albumin ratio) as a marker of blood - CSF barrier function and specific antibody indices (AI) were calculated according to relevant formulae. IgG oligoclonal bands (OB) were detected by isoelectric focusing and immunoenzymatic staining. Results - Eighty-eight percent of MS patients had positive MRZ reaction and 26.2% had positive anti-borrelia AI. Eighty-nine percent of NB patients had positive anti-borrelia AI and two patients had individually anti-measles and rubella positive AI. MS-CSF variables pro. le included the presence of IgG OB in 81%, elevated Q(alb) in 31% and normal cell count in 66.7%. Of NB patients IgG OB were positive in 74%, elevated Q(alb) in 81.5% and normal cell count in 7.4%. Conclusion - MRZ reaction was proved as statistically significant marker in differential diagnosis between MS and NB. Typical CSF variables pro. le of these two entities is highly supportive, especially when MRZ is included.
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