Fig. 4. Change in systolic blood pressure (mmHg) after infusion of murine tetrameric hemoglobin in awake wild-type (WT) mice (n = 6) and db/db mice (n = 6). BW = body weight. *P < 0.05 WT group differs versus whole blood infusion group (data not shown). †P < 0.05 db/db group versus WT group.