Abstract
Monocytes of 95 patients with chronic glomerulonephritis (ch.g.) tested in vitro demonstrated characteristics of activation in proliferative, and of functional suppression in mesangiocapillary glomerulopathy. Fc and C3 receptor function studied by rosette assay and metabolic potential measured by the NBT reduction test constituted result patterns. Receptor tests were supplemented with their counterparts after monocyte triggering with heat-inactivated sera and in case of NBT assay - stimulation with zymosan. Membranous, minimal change, mesangial and focal glomerulonephritis monocytes presented less specific configurations of data than those of proliferative and mesangiocapillary, with a uniform increase of trypsin-resistant Fc receptor activity. There was no appreciable correlation between the presence of circulating immune complexes (c.i.c.) in patient sera and parameters tested. The mesangiocapillary "suppression pattern" suggests mononuclear phagocyte defect in this glomerulopathy.
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