Rebamipide attenuates gastric microcirculatory disturbances in the early period after thermal injury in rats

Dig Dis Sci. 1998 Sep;43(9 Suppl):148S-153S.

Abstract

In our previous study we showed that rebamipide attenuated gastric erosions and active oxygen species released only from the gastric mucosa and not from circulating leukocytes after thermal injury. This study was designed to examine whether rebamipide affects the potential of active oxygen generation from circulating leukocytes, and attenuates microcirculatory disturbance caused by thermal injury to skin. Rats were anesthetized and a 30% full skin-thickness dorsal burn was inflicted. Microvascular images and leukocytes were observed using in vivo microscopy. Endothelial damage was assessed by monastral blue B deposits. Active oxygen species were measured by the chemiluminescence method. Rebamipide (100 mg/kg) decreased leukocyte rolling and monastral blue B deposits in venules but did not improve arteriolar contractions 15 min after thermal injury. These results suggest that rebamipide preserves gastric microcirculation possibly through inhibition of leukocyte adhesion and endothelial damage caused by thermal injury to skin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alanine / analogs & derivatives*
  • Alanine / pharmacology
  • Animals
  • Anti-Ulcer Agents / pharmacology*
  • Burns / physiopathology*
  • Gastric Mucosa / blood supply*
  • Gastric Mucosa / drug effects
  • Gastric Mucosa / metabolism
  • Gastric Mucosa / physiopathology
  • Leukocytes / drug effects*
  • Male
  • Microcirculation / drug effects
  • Quinolones / pharmacology*
  • Rats
  • Rats, Wistar
  • Reactive Oxygen Species / metabolism*

Substances

  • Anti-Ulcer Agents
  • Quinolones
  • Reactive Oxygen Species
  • rebamipide
  • Alanine