Figure 4From: Angiogenic properties of aged adipose derived mesenchymal stem cells after hypoxic conditioningEffect of age and hypoxic stimulation on pro-angiogenic factors gene expression. Expression levels of VEGF (A), PGF (B), HGF (C) and TGF-beta (D) were measured using qRT-PCR. Animal groups consisted of young (1-3 month, 16 animals), aged (18 months, 9 animals) and old mice (24 months, 7 animals). Results are means of different animals (* = p < 0.05, ** = p < 0.01, *** = p < 0.001).Back to article page