Exogenous Hydrogen Sulfide Activates PI3K/Akt/eNOS Pathway to Improve Replicative Senescence in Human Umbilical Vein Endothelial Cells

Figure 1

Identification of HUVECs. (a) Optical microscopy images of early HUVECs (40×). (b) Detection of CD31 on HUVECs surface by flow cytometry.

(a)

(b)