Figure 5From: Renin-angiotensin system activation correlates with microvascular dysfunction in a prospective cohort study of clinical sepsisEarly RAS activation correlates with microvascular dysfunction. Plasma renin activity was assessed by radioimmune assay of plasma from a subset of 12 subjects studied eight hours following the recognition of organ failure. Correlation analysis showed PRA had a significant inverse relationship (Spearman r = -0.83, P = 0.0009) with microvascular reoxygenation rates.Back to article page