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Expression of Immediate Early Genes, HSP70, and COX-2 mRNAs in Rat Stomach Following Ethanol Ingestion

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Abstract

The aim of this study was to show the temporal and spatial molecular responses in the rat stomach that follow absolute ethanol-induced acute mucosal injury. Intense signals for immediate early genes (IEG)/transcriptional factors such as c-fos, c-jun, and nerve growth factor-induced gene-A (NGFI-A) mRNAs were observed in the superficial mucosa and in the blood vessels from 15 min to 6 hr after administration, peaking at 15–30 min. Signals for heat shock protein (HSP) 70 mRNA were also detected in the superficial mucosa, in the fibroblasts around gastric erosions, and in the blood vessels from 15 min to 6 hr (peak at 1–2 hr). The signals for cyclooxygenase-2 (COX-2) mRNA were up-regulated in the surface mucous cells that surround the erosions from 30 min to 6 hr (peak at 60–90 min). These findings suggest that IEG, HSP70, and COX-2 are involved in gastric mucosal restitution in different ways.

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Authors and Affiliations

  1. Department of Anatomy and Neurobiology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan

    Misako Saika, Takashi Ueyama & Emiko Senba

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  1. Misako Saika
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  2. Takashi Ueyama
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Saika, M., Ueyama, T. & Senba, E. Expression of Immediate Early Genes, HSP70, and COX-2 mRNAs in Rat Stomach Following Ethanol Ingestion. Dig Dis Sci 45, 2455–2462 (2000). https://doi.org/10.1023/A:1005615714451

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