In contrast, our preliminary RNAseq analyses comparing Ct, ECH and HF blood leukocytes do not evidence any increase in Ccr2 or Cx3cr1 mRNA in response to early iso-infusion, arguing for a limited participation of recruited blood monocytes to the increased number of cardiac Mφ during ECH (not shown). This evidence concerns the gene CX3CR1 and hydrops fetalis.