Effects of fish oil supplementation on acute ischemic brain injury in the rat.

Abstract:

:We studied the effects of long-term fish oil (FO) dietary supplementation on brain edema, polymorphonuclear neutrophil (PMN) infiltration, and infarct size in a rat stroke model. Rats were given regular rat chow with or without FO supplement (20% of total calories) for 7 weeks. Body weight did not differ between the two groups. In the FO group, an increase in eicosapentaenoic acid and a decrease in arachidonic acid content in hepatic phospholipids were significant in the phosphatidylcholine, phosphatidylethanolamine, and phosphatidylserine but not in the phosphoinositol fraction. Platelet activity reflected by serum thromboxane B2 levels was reduced in the FO group. Postischemic brain edema and PMN infiltration were not different between the two groups. The infarct volume was significantly greater in the FO group (controls: 96 +/- 7 mm3, n = 49; FO group: 124 +/- 6 mm3, n = 53; p = 0.0036). The greater ischemic brain injury in the FO-supplemented animals is probably related to the intraischemic hyperglycemia, which was worse in the FO group than in the control group (controls: 265 +/- 19 mg/dl, n = 14; FO group: 340 +/- 18 mg/dl, n = 16; p = 0.0079).

journal_name

Neurology

journal_title

Neurology

authors

Lai ML,Hsu CY,Liu TH,He YY,Xu J,Navidi M,Sun G,Hogan EL

doi

10.1212/wnl.43.6.1227

subject

Has Abstract

pub_date

1993-06-01 00:00:00

pages

1227-32

issue

6

eissn

0028-3878

issn

1526-632X

journal_volume

43

pub_type

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