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A B S T R A C T Patients with chronic uremia develop neurologic defects which are similar to the demyelinating lesions seen in thiamine deficiency. The Hemodialysis markedly reduced the inhibitory effects of the patients' plasma and the data indicate that uremic patients who received effective long-term dialysis treatment show a parallel decline of transketolase inhibition and uremic neuropathy.

To investigate the role of circulating immune complexes (CIC) in the pathogenesis of acute poststreptococcal glomerulonephritis (AGN), sera were obtained serially from 13 patients with biopsy-proven AGN, 16 patients with group A streptococcal infection, and 20 age- and sex-matched controls. Samples were analysed for Clq-binding activity (Clq-BA), levels of IgG, IgA, IgM, C3 and C4, and antibody titres to streptococcal enzymes. Significant elevation of Clq-BA was observed in 11 patients (84.5%) with AGN and 7 patients (44%) with streptococcal infection alone. The data suggest that CIC do not necessarily cause glomerular damage, but rather represent a systemic inflammatory response in patients with group A streptococcal infection.