Leukocyte chemotaxis (in five patients with pyoderma gangrenosum) was studied using a modification of the Boyden chamber method. In all patients the chemotactic response was significantly lower than in the controls. This abnormal chemotaxis was a result of an intrinsic neutrophil dysfunction. No significant difference was detected between the chemotactic response of leukocytes from patients with minimal or no skin involvement and those from patients with extensive lesions.
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Nerella et al. (1985) studied this question.
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