Figure 1From: Estrogen and progesterone play pivotal roles in endothelial progenitor cell proliferationCharacterization of circulating EPCs from peripheral blood. A) The mononuclear cell fraction was selected based on low granularity by forward and side scatter using FACS. B, C) Sorted cells were fixed and immunostained with antibodies against human KDR, AC133, and CD34, and then subjected to FACS analysis.Back to article page