Related Experiment Video
Updated: Jul 18, 2026

Real-Time Quantification of Reactive Oxygen Species in Neutrophils Infected with Meningitic Escherichia Coli
Published on: April 20, 2021
Total antioxidant/oxidant status in meningism and meningitis
Ali Aycicek1, Akin Iscan, Ozcan Erel
1Pediatric Service, Sanliurfa Children's Hospital, Sanliurfa, Turkey. ali_aycicek@yahoo.com.tr
Insights
Children with meningismus or bacterial meningitis show altered antioxidant and oxidant levels in serum and cerebrospinal fluid. Meningitis cases exhibit distinct cerebrospinal fluid oxidant status compared to meningismus.
Area of Science:
- Biochemistry
- Pediatrics
- Neurology
Background:
- Meningismus and acute bacterial meningitis present with fever and meningeal signs in children.
- Understanding the oxidative stress markers in these conditions is crucial for diagnosis and management.
Purpose of the Study:
- To investigate the serum and cerebrospinal fluid antioxidant/oxidant status in children with meningismus and acute bacterial meningitis.
- To compare these oxidative stress markers between patients and healthy controls.
Main Methods:
- Measured antioxidant markers (ascorbic acid, albumin, thiol, uric acid, bilirubin, TAC, catalase, ceruloplasmin) and oxidant markers (LPO, TOS) in serum and CSF.
- Included 23 children with meningismus, 31 with acute bacterial meningitis, and 29 healthy controls.
- Utilized statistical analysis to compare marker levels between groups.
Main Results:
- Serum antioxidant status was lower, and oxidant status higher in both meningismus and meningitis groups compared to controls (P < 0.001).
- Cerebrospinal fluid oxidant status was lower in the meningitis group than in the meningismus group (P < 0.05).
- Serum oxidant status was elevated in both patient groups, while CSF oxidant status differed between meningismus and meningitis.
Conclusions:
- Children with meningismus and acute bacterial meningitis exhibit significant alterations in serum antioxidant and oxidant profiles.
- Cerebrospinal fluid oxidant status may serve as a differentiating marker between meningismus and acute bacterial meningitis.
- These findings highlight the role of oxidative stress in pediatric meningitis and related conditions.
Abstract:
The objective of this study was to investigate the antioxidant/oxidant status of serum and cerebrospinal fluid in children with meningismus and acute bacterial meningitis. Twenty-three children (age range, 0.75 to 9 years) with fever and meningeal signs that required analysis of the cerebrospinal fluid, but no cytologic or biochemical evidence of meningitis in their serum and cerebrospinal fluid, constituted the meningismus group. Thirty-one children (age range, 0.5 to 10 years) with acute bacterial meningitis constituted the meningitis group. Twenty-nine healthy children (age range, 0.5 to 11 years) were recruited as control subjects. Antioxidant status (ascorbic acid, albumin, thiol, uric acid, total bilirubin, total antioxidant capacity, catalase and ceruloplasmin concentrations) and oxidant status (lipid hydroperoxide and total oxidant status) were measured. The serum antioxidant status was lower, and oxidant status levels higher in both meningitis and meningismus subjects than in the control children (P < 0.001). Cerebrospinal fluid oxidant status was lower in the meningitis group than in the meningismus group (P < 0.05). These results indicate that serum antioxidant status was lower, and serum oxidant status was higher in children in the meningismus and meningitis groups, whereas cerebrospinal fluid oxidant status was higher in the meningismus group than in the meningitis group.
Related Concept Videos
Bacterial Meningitis I: Introduction
Bacterial Meningitis
Bacterial Meningitis II: Pathophysiology
Viral Meningitis
Rocky Mountain Spotted Fever
Radical Oxidation of Allylic and Benzylic Alcohols

