Delayed AMPA receptor blockade reduces cerebral infarction induced by focal ischemia.

Abstract:

:The potent and selective AMPA receptor antagonist NBQX was tested for cytoprotective properties in an adult rat model of transient focal neocortical ischemia. Nineteen spontaneously hypertensive rats sustained 2 h of middle cerebral artery occlusion, followed by 22 h of recirculation. Ninety minutes following the onset of ischemia, at the time of, and 30 min following reperfusion, they received i.p. injections of either saline (n = 10) or 30 mg kg-1 of NBQX (n = 9). Saline-treated rats had a mean volume of neocortical infarction ( +/- s.d.) of 181 +/- 31 mm3, while NBQX-treated rats sustained significantly less damage, 125 +/- 19 mm3 (p less than 0.001). Regional cerebral blood flows during ischemia and reperfusion were not affected by the drug. We suggest that the AMPA receptor may play an important role in ischemic cerebral infarction.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Buchan AM,Xue D,Huang ZG,Smith KH,Lesiuk H

doi

10.1097/00001756-199108000-00016

subject

Has Abstract

pub_date

1991-08-01 00:00:00

pages

473-6

issue

8

eissn

0959-4965

issn

1473-558X

journal_volume

2

pub_type

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