Abstract
Tumor necrosis factor production by peripheral blood mononuclear cells was measured in 18 patients with Kawasaki disease. In patients studied during the acute febrile phase of their disease, there was increased spontaneous TNF production (mean 26.9 +/- 40.3 U/ml) compared with that of control subjects (1.0 +/- .86 U/ml) (p less than or equal to 0.025). Spontaneous TNF production by patients tested in the subacute or convalescent phase of the illness was significantly lower than that in patients tested during the acute illness (p less than or equal to 0.025). In all patients studied with serial acute and subacute-convalescent samples, TNF production was normal in the follow-up samples. Because TNF is a potent mediator of inflammation and causes damage to vascular endothelial cells, we suggest that TNF may be important in the pathogenesis of both the immune activation and endothelial cell damage characteristic of this illness.
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