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. 2022 Jun 15;13(5):13739–13751. doi: 10.1080/21655979.2022.2080413

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© 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Glucose fluctuation promotes cardiomyocyte apoptosis (a) Representative images of tissue sections of left ventricular stained with TUNEL. (b) The quantitative ratio of apoptotic cells. TUNEL: apoptotic myocardial nucleus stained with TUNEL staining solution; DAPI: myocardial nucleus stained with DAPI staining solution; Merge: merged images of TUNEL staining and DAPI staining; C-STZ: controlled diabetic group; U-STZ: uncontrolled diabetic group; GF-STZ: glucose fluctuated diabetic group. n = 5 per group, *P < 0.05.