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Abstract
The distribution of IgG in MS brains (plaques and normal zones) was studied with immunofluorescence.
The histological activity was evaluated on alternate serial sections.
The following results were achieved: high levels of IgG were usually connected with
old plaques; IgG could also be observed in normal white matter, especially near old
plaques. In recent plaques IgG was found to be absent or at very low levels, while
higher levels of IgG were noticeable in the surrounding, apparently normal, areas.
Finally it was observed that IgG can be completely removed from the tissue with a
brief washing in physiological saline before fixation.
The results are discussed and it is suggested that IgG in MS brains is acting more
as a protective than as an autoimmune antibody.
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Article info
Publication history
Received:
June 6,
1974
Identification
Copyright
© 1975 Published by Elsevier Inc.