Figure 5From: Immunological evaluation of the new stable ultrasound contrast agent LK565: a phase one clinical trial TNF-α and specific antibody production after LK565 application (a) intracellular TNF-α (Monocytes) after LK565 exposure relative to starting value and (b) LK565 specific antibody production (IgM, IgG) relative to positive control (n = 15, error bars show standard error).Back to article page