Loading tea polyphenols enhances the repair of human umbilical cord mesenchymal stem cell sheet after spinal cord injury.

To assess whether CS and CS-TP can generate ROS in a high oxidative stress microenvironment, we used DCFH-DA flow cytometry to detect ROS levels in HUVECs and found that the ROS levels in the CS group showed a decreasing trend compared to the H 2 O 2 group, with the CS-TP group showing an even more pronounced decrease (Fig. 4 A, B ).

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