ANXA2 and hydrops fetalis: Other pro-hypertrophic genes displayed a progressive elevation between Ct, ECH, and HF macrophages such as Anxa2 (Annexin 2) proposed as a biomarker of human HF [22], Anxa4 (Annexin 4), and Mrps36 (28S ribosomal protein S36, mitochondrial) [13].