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Published on: September 9, 2012
Platelet-activating factor acetylhydrolase activity in cerebrospinal fluid of children with acute systemic or
Hyeun-Wook Chang1, Soonhak Kwon, Hengmi Kim
1College of Pharmacy, Yeungnam University, Gyongsan, South Korea.
Insights
Cerebrospinal fluid platelet-activating factor acetylhydrolase (PAF-AH) activity increases in children with meningitis and acute febrile illness. This suggests PAF-AH may indicate central nervous system infection responses.
Area of Science:
- Neuroscience
- Biochemistry
- Immunology
Background:
- Platelet-activating factor acetylhydrolase (PAF-AH) plays a role in inflammatory processes.
- Its function in the central nervous system (CNS) during pediatric neurological conditions is not fully understood.
- Investigating PAF-AH in cerebrospinal fluid (CSF) may reveal insights into CNS defense mechanisms.
Purpose of the Study:
- To analyze CSF PAF-AH activity in children with various neurological conditions.
- To determine if CSF PAF-AH is involved in the host's defense against inflammatory mediators in the CNS.
- To assess CSF PAF-AH as a potential biomarker for CNS infections.
Main Methods:
- CSF samples were collected from 85 pediatric patients with neurological conditions and control subjects.
- PAF-AH activity was measured in CSF samples.
- Biochemical profiling of CSF PAF-AH was performed and compared to other acetylhydrolases.
Main Results:
- Significantly elevated CSF PAF-AH activity was observed in children with meningitis and acute febrile illness compared to controls.
- CSF PAF-AH activity was notably higher in meningitis patients than in those with other inflammatory neurological diseases.
- The biochemical profile of CSF PAF-AH differed from other known acetylhydrolases.
Conclusions:
- CSF PAF-AH activity shows a significant increase in response to CNS infections like meningitis.
- CSF PAF-AH may serve as a sensitive indicator of the host's immune response to infections within the central nervous system.
- These findings highlight the potential diagnostic value of CSF PAF-AH in pediatric neurological infections.
Abstract:
Platelet-activating factor acetylhydrolase was analyzed in cerebrospinal fluid samples taken from children with a variety of neurological conditions (85 patients; mean age, 3.8 years) to determine it is involved in the defense mechanism against the toxic effect of inflammatory mediators in the central nervous system. A significant increase in cerebrospinal fluid activity was seen in the patients with meningitis and acute febrile illness in comparison with the control subjects. The activity was also significantly higher in the patients with meningitis than in the patients with inflammatory neurological diseases. In addition, the biochemical profile of cerebrospinal fluid platelet-activating factor acetylhydrolase was different from other known acetylhydrolases. These findings suggest that cerebrospinal fluid platelet-activating factor acetylhydrolase activity may be a sensitive marker of the host response to central nervous system infections.
