IgA immune complexes in Henoch-Schönlein purpura

RJ Levinsky, TM Barratt - The Lancet, 1979 - Elsevier
RJ Levinsky, TM Barratt
The Lancet, 1979Elsevier
Raised levels of IgA immune complexes were found in 13 of 18 children with Henoch-
Schönlein purpura irrespective of whether they developed nephritis or not. In contrast, only
those children who developed nephritis had raised levels of IgG immune complexes as well.
In 2 children with nephritis, two discrete peaks of IgA complexes were found, corresponding
to 4 x 10 5 to 8 x 10 5 and 2.5 x 10 6 to 4 x 10 6 daltons. IgG complexes were found only in
the larger-molecular-weight peak. Such differences in immune complexes may underlie the …
Abstract
Raised levels of IgA immune complexes were found in 13 of 18 children with Henoch-Schönlein purpura irrespective of whether they developed nephritis or not. In contrast, only those children who developed nephritis had raised levels of IgG immune complexes as well. In 2 children with nephritis, two discrete peaks of IgA complexes were found, corresponding to 4 x 105 to 8 x 105 and 2.5 x 106 to 4 x 106 daltons. IgG complexes were found only in the larger-molecular-weight peak. Such differences in immune complexes may underlie the different manifestations of this disease.
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