Research Article

Antioxidant Activities and Repair Effects on Oxidatively Damaged HK-2 Cells of Tea Polysaccharides with Different Molecular Weights

Figure 6

Changes in intracellular ROS of damaged HK-2 cells after being repaired by TPSs with different Mw. (a) The image of ROS distribution observed under fluorescence microscope. (b) Quantitative analysis of ROS fluorescence intensity. The green fluorescence intensity represents ROS production. NC: normal control; PC: positive control (Rosup); DC: damaged control (oxalate). TPS concentration: 80 μg/mL; oxalate damage concentration: 2.6 mmol/L. Damaged time: 3.5 h; repaired time: 10 h. Data were expressed as mean ± SD of three independent experiments. Compared with DC group, ; .
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