Fig 1: ESR experiments and histologic examinations of mice based on different kinds of water. (A) ESR spectra of DPPH free radicals. (B) The corresponding histograms showing the intensities of DPPH. (C) Representative images of H&E-stained and IHC staining colon sections of mice with PAW consumption for two weeks. (D) Representative images of IHC staining colon sections of mice with PAW consumption for CK20 and COX-2. IHC score for the percentage of positively stained cells: 1, 0–25%; 2, 26–50%; 3, 51–75%; 4, 76–100%. DIW, deionized water; PAW, plasmon-activated water; TNBS, 2,4,6-trinitrobenzene sulfonic acid; H&E, hematoxylin and eosin; IHC, immunohistochemistry. Scale bars, 100 µm. *** p < 0.001.
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