Fig. 3From: Hypoxia preconditioning promotes cardiac stem cell survival and cardiogenic differentiation in vitro involving activation of the HIF-1α/apelin/APJ axisAlterations of molecules in the HIF-1α/apelin/APJ axis after HP. Western blot analysis (a) and qRT-PCR (b) were used to detect alterations of molecules in the HIF-1α/apelin/APJ axis after HP. Comparisons were made between normoxia and HP groups. **p < 0.01 vs normoxia. HP: hypoxia preconditioning, HIF: hypoxia-inducible factor, apelin: ligand for putative receptor protein related to angiotensin receptor AT1, APJ: putative receptor protein related to angiotensin receptor AT1Back to article page