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. 2021 Dec 7;21(1):49–66. doi: 10.1021/acs.jproteome.1c00447

Figure 5.

Figure 5

Region-specific changes in response to ischemia–reperfusion. Principle component analysis of (A) mucosa regions and (B) submucosa regions. (C) H&E staining (I) and peptide images showing high-fold change peptides in the mucosa (II, III) and submucosa (IV). Corresponding graphs show intensity data for all patients (presented peptide images correspond to a red line in the graph). All peptide images were generated from TOF-MSI data for the indicated m/z values ±0.2 Da. See also Figures S8 and S9 for peptide images from all samples.