Effect of dilazep dihydrochloride against ischemia and reperfusion-induced disruption of blood-brain barrier in rats: a quantitative study

Jun ichi Kawagoe, Koji Abe, Junya Ikuta, Naomi Igarashi, Sadahiro Shimizu, Yoichi Yamauchi, Kyuya Kogure

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9 Citations (Scopus)

Abstract

The effect of dilazep dihydrochloride (dilazep) against ischemia and reperfusion-induced disruption of blood-brain barrier (BBB) was quantitatively investigated in Slc:Wistar strain rats using Evans blue dye as a BBB destruction indicator. The forebrain of sham-operated animal had a small amount of the dye. A treatment of 3.5-h ischemia plus 2-h reflow extravasated the dye into the brain and markedly increased the dye content as compared with that of sham group (P < 0.01 vs. sham group). Continuous infusion (i.v.) of dilazep during cerebral ischemia dose-dependently reduced the increase of the dye content, and a significant reduction was found at 3 mg/kg/h (P < 0.05 vs. control group). Evans blue dye extravasation after ischemia was also greatly reduced in saline-perfused brains by the treatment with dilazep. Dilazep has been reported to inhibit edema formation in cerebral ischemia model of spontaneously hypertensive rats. These results suggest that dilazep prevents the ischemic damage of BBB, which may contribute to reduction of the brain edema.

Original languageEnglish
Pages (from-to)485-488
Number of pages4
JournalNaunyn-Schmiedeberg's Archives of Pharmacology
Volume345
Issue number4
DOIs
Publication statusPublished - Apr 1 1992
Externally publishedYes

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Keywords

  • Blood-brain barrier
  • Cerebral ischemia
  • Dilazep dihydrochloride
  • Evans blue dye
  • Rat

ASJC Scopus subject areas

  • Pharmacology

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