FIG. 3.

Degree of intraperitoneal RBC lysis produced by either WAF 270 or WAF 108 during peritonitis. The percent lysed RBC was determined by absorbance at 543 nm of free hemoglobin within either (i) cell-free lavage fluid after removing intact cells by low-speed centrifugation or (ii) lavage fluid following complete lysis of intact RBC with a commercial lytic reagent (Zap-oglobin II; Coulter Diagnostics). The percentage was determined as absorbance (i)/absorbance (ii) × 100. Values are mean percentages and standard errors for 14 animals in each group.