Ineffectiveness of DMSO in treating experimental brain ischemia.

Abstract:

:A beneficial effect of dimethyl sulfoxide (DMSO) in the treatment of acute focal cerebral ischemia has not been proven. In the present study, two established experimental models of acute focal cerebral ischemia were treated with DMSO. Twenty adult cats lightly anesthetized with ketamine hydrochloride underwent right middle cerebral artery (MCA) occlusion for 6 hours. Ten cats were not treated and 10 cats received DMSO (2.5 g/kg i.v.) immediately after occlusion. No improvement of EEG findings, erythrocyte transit, regional cerebral blood flow (rCBF), blood-brain barrier permeability, or morphological findings were demonstrated in the DMSO-treated cats. In a second study, 15 conscious adult baboons underwent temporary left MCA occlusion (6 or 12 hours) using an implanted occluding device. Seven baboons were not treated and 8 baboons received continuous intravenous infusions of DMSO for 10 hours beginning 30 minutes after occlusion. Four of the baboons that were treated with DMSO also were treated with pentobarbital coma for 96 hours starting 4 hours after occlusion. Analysis of the neurological scores after 1 week survival indicated that treatment with DMSO alone and DMSO and pentobarbital coma did not improve the outcome. Morphological changes were similar in the 3 groups. The findings of our investigation indicate that DMSO is ineffective in treating acute focal cerebral ischemia.

journal_name

Ann N Y Acad Sci

authors

Little JR,Spetzler RF,Roski RA,Selman WR,Zabramski J,Lesser RP

doi

10.1111/j.1749-6632.1983.tb47308.x

subject

Has Abstract

pub_date

1983-01-01 00:00:00

pages

269-77

eissn

0077-8923

issn

1749-6632

journal_volume

411

pub_type

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