To investigate the effects of dipyridamole (DPD) on the production of reactive oxygen species (ROS) and oxidative stress in cultured human trabecular meshwork cells (HTMC).
MethodsAntioxidant activity of DPD was determined by DPPH assay. Primarily cultured HTMC were exposed to 0, 20, and 50 µm DPD using serum-deprived media. The effect of DPD on the production of ROS was assessed with the DCHFDA assay. The effect of DPD on the t-butyl hydroperoxide (tBHP)-induced oxidative stress was assessed with resazurin assay.
ResultsDPD showed significant antioxidant activity. DPD significantly decreased the production of ROS ( p < 0.05) and improved cellular activity significantly after treatment with t-BHP ( p < 0.05). DPD did not affect the generation of nitric oxides.
ConclusionsDPD suppressed the formation of ROS and possessed cytoprotective activity against the oxidative stress in HTMC.