Matrix metalloproteinase 2 gene knockout has no effect on acute brain injury after focal ischemia.

Abstract:

:Matrix metalloproteinases (MMPs) may contribute to tissue damage after cerebral ischemia. In this study, wildtype and MMP-2 knockout mice were subjected to permanent and transient (2 h) occlusions of the middle cerebral artery. Gelatin zymography showed that MMP-9 levels were increased in all brains after ischemia. MMP-2 levels did not show a significant increase in wildtype mice, and were not detectable in knockout mice. Laser doppler flowmetry demonstrated equivalent ischemic reductions in perfusion in wildtype and knockout mice. In both permanent and transient occlusion paradigms, there were no statistically significant differences between wildtype and knockout mice in terms of 24 h ischemic lesion volumes. These data suggest that MMP-2 does not contribute to acute tissue damage in this model of focal ischemia.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Asahi M,Sumii T,Fini ME,Itohara S,Lo EH

doi

10.1097/00001756-200109170-00050

subject

Has Abstract

pub_date

2001-09-17 00:00:00

pages

3003-7

issue

13

eissn

0959-4965

issn

1473-558X

journal_volume

12

pub_type

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