Fig. 1From: Growth factor levels in leukocyte-poor platelet-rich plasma and correlations with donor age, gender, and platelets in the Japanese populationCorrelation between the age of volunteers and concentrations of PDGF-BB and IGF-1 in PRP samples. PDGF-BB and IGF-1 levels significantly correlated with age (Spearman a: PDGF-BB r=-0.32, p<0.05, b: r=0.39, p<0.05)Back to article page