Fig. 4From: Senescent endothelial progenitor cells from dogs with pulmonary arterial hypertension: a before–after self-controlled studya–c Twenty-four hours after being replated on the top of the solidified matrix, EPCs from beagles formed tubules, which were defined as a structure exhibiting a length four times more than its width. Representative micrographs of tubule formation of EPCs derived from beagles at baseline, 48 h and 6 weeks after DHMC treatment, respectively, are shown. b Quantitative comparison of the numbers of the tubules per ×200 field among baseline, 48 h and 6 weeks after DHMC. Data are mean ± SD. *p < 0.05 versus baseline, #p < 0.05 versus 48 hBack to article page