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Figure 2 Gene expression of the activin A subunit activin beta_A (A) and the activin A receptor II type A (ARIIA) (B) and type B (ARIIB) (C) in peripheral blood mononuclear cells from 15 patients with unstable angina pectoris (AP), 15 patients with stable AP, and 10 healthy controls. The messenger ribonucleic acid (mRNA) levels were quantified using real-time reverse transcription polymerase chain reaction, and data are presented relative to the gene expression of beta-actin (mean ± SEM). *p < 0.05 versus healthy controls. p < 0.05 versus stable AP.