Physiological and histopathological effects of electroporation pulse on stomach of rats

Abstract Background Irreversible electroporation (IRE) is an emerging tissue ablation technique with widespread potential, especially for cancer treatment. Although the safety and efficacy of IRE for gastric tissue ablation have been demonstrated, there is a gap of knowledge regarding the effect of...

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Main Authors: Yuchi Zhang, Xuan Han, Zhuoqun Li, Yu Zhang, Lihong Liang, Xiaoying Ma, Haonan Liu, Yihui Gao, Qingshan Li, Xue Chen, Yi Lv, Fenggang Ren
Format: Article
Language:English
Published: BMC 2021-09-01
Series:BMC Gastroenterology
Subjects:
Online Access:https://doi.org/10.1186/s12876-021-01924-0
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author Yuchi Zhang
Xuan Han
Zhuoqun Li
Yu Zhang
Lihong Liang
Xiaoying Ma
Haonan Liu
Yihui Gao
Qingshan Li
Xue Chen
Yi Lv
Fenggang Ren
author_facet Yuchi Zhang
Xuan Han
Zhuoqun Li
Yu Zhang
Lihong Liang
Xiaoying Ma
Haonan Liu
Yihui Gao
Qingshan Li
Xue Chen
Yi Lv
Fenggang Ren
author_sort Yuchi Zhang
collection DOAJ
description Abstract Background Irreversible electroporation (IRE) is an emerging tissue ablation technique with widespread potential, especially for cancer treatment. Although the safety and efficacy of IRE for gastric tissue ablation have been demonstrated, there is a gap of knowledge regarding the effect of electroporation pulse (EP) on the physiology and histopathology of the stomach. This study applied EP to the stomach of healthy rats and investigated the digestive function, serum marker levels, and gastric tissue structure of EP-treated rats. Methods Ninety male rats were divided into nine groups and examined up to 28 days post-treatment. A single burst of electroporation pulse (500 V, 99 pluses, 1 Hz, 100 µs) was delivered to the stomachs of rats using a tweezer-style round electrode. Gastric emptying, small intestinal transit, and gastric secretion were measured to evaluate the digestive function. Serum marker levels were determined using ELISA. Haematoxylin–eosin, Masson trichrome, and immunofluorescence were performed for histopathological analysis. Results No  significant effect on gastric emptying or secretion was found post-EP, whereas the small intestinal transit decreased at 4 h and rapidly recovered to normal on 1-day post-EP. Further, serum TNF-α and IL-1β levels temporarily changed during the acute phase but returned to baseline within 28 days. Moreover, histopathological analysis revealed that cell death occurred immediately post-EP in the ablation area, whereas the gastric wall scaffold in the ablation region remained intact post-EP. Conclusions This study demonstrates the safety and efficacy of EP on the physiology and histopathology of the stomach and lays a foundation for more comprehensive applications of this technique.
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spelling doaj.art-9ce988e504ea490ea65804251ca123d42022-12-21T23:24:45ZengBMCBMC Gastroenterology1471-230X2021-09-0121111010.1186/s12876-021-01924-0Physiological and histopathological effects of electroporation pulse on stomach of ratsYuchi Zhang0Xuan Han1Zhuoqun Li2Yu Zhang3Lihong Liang4Xiaoying Ma5Haonan Liu6Yihui Gao7Qingshan Li8Xue Chen9Yi Lv10Fenggang Ren11National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityNational Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi’an Jiaotong UniversityAbstract Background Irreversible electroporation (IRE) is an emerging tissue ablation technique with widespread potential, especially for cancer treatment. Although the safety and efficacy of IRE for gastric tissue ablation have been demonstrated, there is a gap of knowledge regarding the effect of electroporation pulse (EP) on the physiology and histopathology of the stomach. This study applied EP to the stomach of healthy rats and investigated the digestive function, serum marker levels, and gastric tissue structure of EP-treated rats. Methods Ninety male rats were divided into nine groups and examined up to 28 days post-treatment. A single burst of electroporation pulse (500 V, 99 pluses, 1 Hz, 100 µs) was delivered to the stomachs of rats using a tweezer-style round electrode. Gastric emptying, small intestinal transit, and gastric secretion were measured to evaluate the digestive function. Serum marker levels were determined using ELISA. Haematoxylin–eosin, Masson trichrome, and immunofluorescence were performed for histopathological analysis. Results No  significant effect on gastric emptying or secretion was found post-EP, whereas the small intestinal transit decreased at 4 h and rapidly recovered to normal on 1-day post-EP. Further, serum TNF-α and IL-1β levels temporarily changed during the acute phase but returned to baseline within 28 days. Moreover, histopathological analysis revealed that cell death occurred immediately post-EP in the ablation area, whereas the gastric wall scaffold in the ablation region remained intact post-EP. Conclusions This study demonstrates the safety and efficacy of EP on the physiology and histopathology of the stomach and lays a foundation for more comprehensive applications of this technique.https://doi.org/10.1186/s12876-021-01924-0Electroporation pulseIrreversible electroporationGastric tissueDigestive function
spellingShingle Yuchi Zhang
Xuan Han
Zhuoqun Li
Yu Zhang
Lihong Liang
Xiaoying Ma
Haonan Liu
Yihui Gao
Qingshan Li
Xue Chen
Yi Lv
Fenggang Ren
Physiological and histopathological effects of electroporation pulse on stomach of rats
BMC Gastroenterology
Electroporation pulse
Irreversible electroporation
Gastric tissue
Digestive function
title Physiological and histopathological effects of electroporation pulse on stomach of rats
title_full Physiological and histopathological effects of electroporation pulse on stomach of rats
title_fullStr Physiological and histopathological effects of electroporation pulse on stomach of rats
title_full_unstemmed Physiological and histopathological effects of electroporation pulse on stomach of rats
title_short Physiological and histopathological effects of electroporation pulse on stomach of rats
title_sort physiological and histopathological effects of electroporation pulse on stomach of rats
topic Electroporation pulse
Irreversible electroporation
Gastric tissue
Digestive function
url https://doi.org/10.1186/s12876-021-01924-0
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