CD34 and type 2 diabetes mellitus: Specifically, patients with T2D displayed an increased frequency of proinflammatory myeloid cells and decreased frequency of circulating monocytes with an M2 phenotype, which is associated with proangiogenic and anti-inflammatory functions, and a reduction of proangiogenic CD34+ progenitor cells with primitive (CD133) and migratory (CXCR4) phenotypes.