FIG. 8.

Identification of an idiotype (My1) present on antibodies in sera from patients with acute rheumatic fever (ARF) and acute glomerulonephritis (AGN) as well as systemic lupus erythematosus (SLE) and Sjögren's syndrome (not shown). Sera from normal individuals (N) and patients with uncomplicated streptococcal disease (UC), heart failure (HF), Chagas' disease (not shown), and IgA nephropathy (not shown) are compared in the figure, and all have normal levels of the My1 idiotype. (Reprinted from reference 354 with permission from the publisher.)