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Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats

  • Authors:
    • Jing Yin
    • Jinyu Yi
    • Chun Yang
    • Bo Xu
    • Jiang Lin
    • Hongyi  Hu
    • Xiaojun Wu
    • Hailian Shi
    • Xiaoyan Fei
  • View Affiliations / Copyright

    Affiliations: Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China, Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
    Copyright: © Yin et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 315
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    Published online on: February 3, 2021
       https://doi.org/10.3892/etm.2021.9746
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Abstract

The aim of the present study was to induce chronic atrophic gastritis (CAG) with intestinal metaplasia (IM) in rats by administering saturated salt and methyl‑N'‑nitro‑N‑nitrosoguanidine (MNNG) via oral gavage. Changes in gastric mucosal blood microcirculation and activation of the cyclo‑oxygenase‑2 (COX‑2)/hypoxia inducible factor‑1α (HIF‑1α)/vascular endothelial growth factor (VEGF) signaling pathway during CAG and IM development were investigated. After administering saturated salt and MNNG for 25 weeks, mild atrophy was detected in the stomach of model rats using hematoxylin and eosin staining. CAG with IM was successfully induced in the gastric mucosa of the model rats after 35 weeks. Gastric mucosal blood flow was decreased in comparison with controls as early as 15 weeks after treatment to induce CAG and the mRNA expression levels of COX‑2, HIF‑1α, vascular endothelial growth factor receptor (VEGFR)1 and VEGFR2 were increased in comparison with untreated rats as early as 25 weeks after treatment. HIF‑1α, COX‑2 and VEGFR2 expression levels were increased as early as 25 weeks after CAG induction treatment when compared to controls and HIF‑1α, COX‑2, VEGFR1 and VEGFR2 expression levels were significantly increased after 35 weeks. These findings indicated that administering saturated salt and MNNG by gavage for 35 weeks successfully induced CAG and IM in rats. Furthermore, the microcirculation was disturbed before activation of the COX‑2/HIF‑1α/VEGF signaling pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Yin J, Yi J, Yang C, Xu B, Lin J, Hu H, Wu X, Shi H and Fei X: Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats. Exp Ther Med 21: 315, 2021.
APA
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H. ... Fei, X. (2021). Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats. Experimental and Therapeutic Medicine, 21, 315. https://doi.org/10.3892/etm.2021.9746
MLA
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H., Wu, X., Shi, H., Fei, X."Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats". Experimental and Therapeutic Medicine 21.4 (2021): 315.
Chicago
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H., Wu, X., Shi, H., Fei, X."Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats". Experimental and Therapeutic Medicine 21, no. 4 (2021): 315. https://doi.org/10.3892/etm.2021.9746
Copy and paste a formatted citation
x
Spandidos Publications style
Yin J, Yi J, Yang C, Xu B, Lin J, Hu H, Wu X, Shi H and Fei X: Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats. Exp Ther Med 21: 315, 2021.
APA
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H. ... Fei, X. (2021). Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats. Experimental and Therapeutic Medicine, 21, 315. https://doi.org/10.3892/etm.2021.9746
MLA
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H., Wu, X., Shi, H., Fei, X."Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats". Experimental and Therapeutic Medicine 21.4 (2021): 315.
Chicago
Yin, J., Yi, J., Yang, C., Xu, B., Lin, J., Hu, H., Wu, X., Shi, H., Fei, X."Chronic atrophic gastritis and intestinal metaplasia induced by high‑salt and N‑methyl‑N'‑nitro‑N‑nitrosoguanidine intake in rats". Experimental and Therapeutic Medicine 21, no. 4 (2021): 315. https://doi.org/10.3892/etm.2021.9746
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