To detect DNA damage in H. pylori [44 (link)], a TransDetect In Situ Fluorescein TUNEL Cell Apoptosis Detection Kit (Transgen Biotech, Beijing, China) was employed. Accuri C6 (BD, Franklin Lakes, Germany) flow cytometer and LSM510 confocal (Zeiss, Oberkochen, Germany) were used to detect the fluorescence signal changes. All flow cytometry data were collected using the Accuri C6 software. At least 10,000 cells were collected and analyzed for each sample. Flow data were processed and analyzed with CFlow Plus (BD, Franklin Lakes, Germany).
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