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Table of Contents
Vol. 80, No. 1, 2001
Issue release date: July 2001
Section title: Original Paper
Biol Neonate 2001;80:53–59
(DOI:10.1159/000047120)

7-Nitroindazole, but Not Aminoguanidine, Attenuates the Acute Inflammatory Responses and Brain Injury during the Early Phase of Escherichia coli Meningitis in the Newborn Piglet

Park W.S. · Chang Y.S. · Lee M.
Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: July 26, 2001
Issue release date: July 2001

Number of Print Pages: 7
Number of Figures: 2
Number of Tables: 2

ISSN: 1661-7800 (Print)
eISSN: 1661-7819 (Online)

For additional information: http://www.karger.com/NEO

Abstract

We evaluated the anti-inflammatory and neuroprotective effects of the selective neuronal nitric oxide synthase inhibitor 7-nitroindazole and aminoguanidine, which predominantly inhibits inducible nitric oxide synthase, during the early phase of experimental bacterial meningitis in the newborn piglet. Meningitis was induced by intracisternal injection of 108 colony-forming units of Escherichia coli in 100 µl of saline. 7-Nitroindazole significantly attenuated the meningitis-induced acute inflammatory responses such as increased intracranial pressure, decreased cerebrospinal fluid (CSF) glucose concentration, and CSF leukocytosis at 2 h. However, meningitis-induced CSF leukocytosis at 4 h and increased CSF lactate and tumor necrosis factor alpha levels were not significantly attenuated. Reduced cerebral cortical cell membrane Na+,K+-ATPase activity and increased lipid peroxidation products, indicative of meningitis-induced brain cell membrane dysfunction, were also significantly improved with 7-nitroindazole treatment. In contrast, although aminoguanidine significantly attenuated the increase in the CSF tumor necrosis factor alpha level, it failed to attenuate the acute inflammation and the ensuing brain injury in bacterial meningitis. In summary, 7-nitroindazole, but not aminoguanidine, significantly attenuated the acute inflammatory responses and brain injury during the early phase of neonatal bacterial meningitis.

© 2001 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: July 26, 2001
Issue release date: July 2001

Number of Print Pages: 7
Number of Figures: 2
Number of Tables: 2

ISSN: 1661-7800 (Print)
eISSN: 1661-7819 (Online)

For additional information: http://www.karger.com/NEO


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