Abstract | BACKGROUND AND PURPOSE: METHODS: Twenty-minute forebrain ischemia was induced using the method of Pulsinelli and Brierley. We measured the neuronal density of the hippocampal CA1 subfield 7 days after reperfusion. The effect of phenylmethylsulfonyl fluoride was tested in both pretreatment and posttreatment groups. RESULTS: In the vehicle treatment group (n = 13), neuronal density was 51 +/- 42/mm (mean +/- SD). The neuronal densities in the 50-mg/kg (n = 12) and 100-mg/kg (n = 14) phenylmethylsulfonyl fluoride pretreatment groups and the 100-mg/kg (n = 10) phenylmethylsulfonyl fluoride posttreatment group were 99 +/- 50, 150 +/- 55, and 143 +/- 63/mm, respectively. These values were significantly higher than that of the vehicle treatment group (p less than 0.05, p less than 0.01, and p less than 0.01, respectively). CONCLUSIONS: It is suggested that the activation of phospholipase C has an important role in postischemic delayed neuronal damage.
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Authors | A Umemura, H Mabe, H Nagai |
Journal | Stroke
(Stroke)
Vol. 23
Issue 8
Pg. 1163-6
(Aug 1992)
ISSN: 0039-2499 [Print] United States |
PMID | 1636192
(Publication Type: Journal Article)
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Chemical References |
- Phenylmethylsulfonyl Fluoride
- Type C Phospholipases
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Topics |
- Animals
- Brain Ischemia
(metabolism, pathology)
- Hippocampus
(pathology)
- Male
- Neurons
(drug effects, pathology)
- Phenylmethylsulfonyl Fluoride
(pharmacology)
- Rats
- Rats, Inbred Strains
- Type C Phospholipases
(antagonists & inhibitors, metabolism)
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