Histaminergic effect on apoptosis of rat small intestinal mucosa after ischemia - reperfusion

Toshifumi Yoshida, Ryuichi Iwakiri, Takahiro Noda, Kazuyo Okamoto, Masataka Kojima, Koji Fukuyama, Kazuma Fujimoto

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

This study aimed to examine the relationship between a harmful effect of histamine and apoptosis following ischemia - reperfusion in the rat intestine. The superior mesenteric artery was occluded for 60 min followed by reperfusion for 60 min. Rats were infused with H1-receptor antagonist (chlorpheniramine maleate) or H2-receptor antagonist (cimetidine). Additional rats were pretreated with aminoguanidine (100 mg/kg). Percent apoptosis in the intestinal mucosa increased after reperfusion, but neither H1 nor H2 antagonists had any effect on apoptosis. Aminoguanidine pretreatment inhibited activity of diamine oxidase and increased the plasma histamine concentration. Aminoguanidine attenuated the increase in mucosal apoptosis following reperfusion. Apoptosis induced by an ischemic insult to the intestinal mucosa was not related to an undesirable effect of histamine. Attenuation of increased intestinal apoptosis might be due to increased plasma histamine level and/or other pharmacological action of amioguanidine, including inhibition of inducible nitric oxide synthase.

Original languageEnglish
Pages (from-to)1138-1144
Number of pages7
JournalDigestive Diseases and Sciences
Volume45
Issue number6
DOIs
Publication statusPublished - 2000
Externally publishedYes

Keywords

  • Aminoguanidine
  • Diamine oxidase
  • Fragmented DNA
  • H-receptor antagonist
  • H-receptor antagonist
  • Nitric oxide

ASJC Scopus subject areas

  • Physiology
  • Gastroenterology

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