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Induction of sTREM-1 secretion in leukocytes in response to E. coli exposure. Blood was exposed to E. coli. After 24 h, secretion of sTREM-1 by leukocytes into the culture supernatant was measured by ELISA. Bars represent mean values ± standard errors of mean (SEM). The asterisk represents a statistically significant difference between the E. coli-challenged and unchallenged control groups.
