Deposition of IC in tissues Q An increase in vascular permeability In general, complement, mast cells basophils and platelets must all be considered as potential producers of vasoactive amines a Local high blood pressure and turbulence The blood pressure in the glomerular capillaries is approximately four times that of most other capillaries.Deposition of IC in tissues An increase in vascular permeability In general, complement, mast cells, basophils and platelets must all be considered as potential producers of vasoactive amines. Local high blood pressure and turbulence The blood pressure in the glomerular capillaries is approximately four times that of most other capillaries